text: /*
   *  Catch v2.11.3
   *  Generated: 2020-03-19 13:44:21.042491
   *  ----------------------------------------------------------
   *  This file has been merged from multiple headers. Please don't edit it
   * directly Copyright (c) 2020 Two Blue Cubes Ltd. All rights reserved.
   *
   *  Distributed under the Boost Software License, Version 1.0. (See accompanying
   *  file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
   */
  #ifndef TWOBLUECUBES_SINGLE_INCLUDE_CATCH_HPP_INCLUDED
  #define TWOBLUECUBES_SINGLE_INCLUDE_CATCH_HPP_INCLUDED
  // start catch.hpp
  
  #define CATCH_VERSION_MAJOR 2
  #define CATCH_VERSION_MINOR 11
  #define CATCH_VERSION_PATCH 3
  
  #ifdef __clang__
  #pragma clang system_header
  #elif defined __GNUC__
  #pragma GCC system_header
  #endif
  
  // start catch_suppress_warnings.h
  
  #ifdef __clang__
  #ifdef __ICC // icpc defines the __clang__ macro
  #pragma warning(push)
  #pragma warning(disable : 161 1682)
  #else // __ICC
  #pragma clang diagnostic push
  #pragma clang diagnostic ignored "-Wpadded"
  #pragma clang diagnostic ignored "-Wswitch-enum"
  #pragma clang diagnostic ignored "-Wcovered-switch-default"
  #endif
  #elif defined __GNUC__
  // Because REQUIREs trigger GCC's -Wparentheses, and because still
  // supported version of g++ have only buggy support for _Pragmas,
  // Wparentheses have to be suppressed globally.
  #pragma GCC diagnostic ignored "-Wparentheses" // See #674 for details
  
  #pragma GCC diagnostic push
  #pragma GCC diagnostic ignored "-Wunused-variable"
  #pragma GCC diagnostic ignored "-Wpadded"
  #endif
  // end catch_suppress_warnings.h
  #if defined(CATCH_CONFIG_MAIN) || defined(CATCH_CONFIG_RUNNER)
  #define CATCH_IMPL
  #define CATCH_CONFIG_ALL_PARTS
  #endif
  
  // In the impl file, we want to have access to all parts of the headers
  // Can also be used to sanely support PCHs
  #if defined(CATCH_CONFIG_ALL_PARTS)
  #define CATCH_CONFIG_EXTERNAL_INTERFACES
  #if defined(CATCH_CONFIG_DISABLE_MATCHERS)
  #undef CATCH_CONFIG_DISABLE_MATCHERS
  #endif
  #if !defined(CATCH_CONFIG_ENABLE_CHRONO_STRINGMAKER)
  #define CATCH_CONFIG_ENABLE_CHRONO_STRINGMAKER
  #endif
  #endif
  
  #if !defined(CATCH_CONFIG_IMPL_ONLY)
  // start catch_platform.h
  
  #ifdef __APPLE__
  #include <TargetConditionals.h>
  #if TARGET_OS_OSX == 1
  #define CATCH_PLATFORM_MAC
  #elif TARGET_OS_IPHONE == 1
  #define CATCH_PLATFORM_IPHONE
  #endif
  
  #elif defined(linux) || defined(__linux) || defined(__linux__)
  #define CATCH_PLATFORM_LINUX
  
  #elif defined(WIN32) || defined(__WIN32__) || defined(_WIN32) || \
      defined(_MSC_VER) || defined(__MINGW32__)
  #define CATCH_PLATFORM_WINDOWS
  #endif
  
  // end catch_platform.h
  
  #ifdef CATCH_IMPL
  #ifndef CLARA_CONFIG_MAIN
  #define CLARA_CONFIG_MAIN_NOT_DEFINED
  #define CLARA_CONFIG_MAIN
  #endif
  #endif
  
  // start catch_user_interfaces.h
  
  namespace Catch
  {
  unsigned int rngSeed();
  }
  
  // end catch_user_interfaces.h
  // start catch_tag_alias_autoregistrar.h
  
  // start catch_common.h
  
  // start catch_compiler_capabilities.h
  
  // Detect a number of compiler features - by compiler
  // The following features are defined:
  //
  // CATCH_CONFIG_COUNTER : is the __COUNTER__ macro supported?
  // CATCH_CONFIG_WINDOWS_SEH : is Windows SEH supported?
  // CATCH_CONFIG_POSIX_SIGNALS : are POSIX signals supported?
  // CATCH_CONFIG_DISABLE_EXCEPTIONS : Are exceptions enabled?
  // ****************
  // Note to maintainers: if new toggles are added please document them
  // in configuration.md, too
  // ****************
  
  // In general each macro has a _NO_<feature name> form
  // (e.g. CATCH_CONFIG_NO_POSIX_SIGNALS) which disables the feature.
  // Many features, at point of detection, define an _INTERNAL_ macro, so they
  // can be combined, en-mass, with the _NO_ forms later.
  
  #ifdef __cplusplus
  
  #if (__cplusplus >= 201402L) || (defined(_MSVC_LANG) && _MSVC_LANG >= 201402L)
  #define CATCH_CPP14_OR_GREATER
  #endif
  
  #if (__cplusplus >= 201703L) || (defined(_MSVC_LANG) && _MSVC_LANG >= 201703L)
  #define CATCH_CPP17_OR_GREATER
  #endif
  
  #endif
  
  #if defined(CATCH_CPP17_OR_GREATER)
  #define CATCH_INTERNAL_CONFIG_CPP17_UNCAUGHT_EXCEPTIONS
  #endif
  
  // We have to avoid both ICC and Clang, because they try to mask themselves
  // as gcc, and we want only GCC in this block
  #if defined(__GNUC__) && !defined(__clang__) && !defined(__ICC)
  #define CATCH_INTERNAL_START_WARNINGS_SUPPRESSION _Pragma("GCC diagnostic push")
  #define CATCH_INTERNAL_STOP_WARNINGS_SUPPRESSION _Pragma("GCC diagnostic pop")
  
  #define CATCH_INTERNAL_IGNORE_BUT_WARN(...) \
    (void)__builtin_constant_p(__VA_ARGS__)
  
  #endif
  
  #if defined(__clang__)
  
  #define CATCH_INTERNAL_START_WARNINGS_SUPPRESSION \
    _Pragma("clang diagnostic push")
  #define CATCH_INTERNAL_STOP_WARNINGS_SUPPRESSION _Pragma("clang diagnostic pop")
  
  #define CATCH_INTERNAL_IGNORE_BUT_WARN(...) \
    (void)__builtin_constant_p(__VA_ARGS__)
  
  #define CATCH_INTERNAL_SUPPRESS_GLOBALS_WARNINGS                  \
    _Pragma("clang diagnostic ignored \"-Wexit-time-destructors\"") \
        _Pragma("clang diagnostic ignored \"-Wglobal-constructors\"")
  
  #define CATCH_INTERNAL_SUPPRESS_PARENTHESES_WARNINGS \
    _Pragma("clang diagnostic ignored \"-Wparentheses\"")
  
  #define CATCH_INTERNAL_SUPPRESS_UNUSED_WARNINGS \
    _Pragma("clang diagnostic ignored \"-Wunused-variable\"")
  
  #define CATCH_INTERNAL_SUPPRESS_ZERO_VARIADIC_WARNINGS \
    _Pragma("clang diagnostic ignored \"-Wgnu-zero-variadic-macro-arguments\"")
  
  #define CATCH_INTERNAL_SUPPRESS_UNUSED_TEMPLATE_WARNINGS \
    _Pragma("clang diagnostic ignored \"-Wunused-template\"")
  
  #endif // __clang__
  
  ////////////////////////////////////////////////////////////////////////////////
  // Assume that non-Windows platforms support posix signals by default
  #if !defined(CATCH_PLATFORM_WINDOWS)
  #define CATCH_INTERNAL_CONFIG_POSIX_SIGNALS
  #endif
  
  ////////////////////////////////////////////////////////////////////////////////
  // We know some environments not to support full POSIX signals
  #if defined(__CYGWIN__) || defined(__QNX__) || defined(__EMSCRIPTEN__) || \
      defined(__DJGPP__)
  #define CATCH_INTERNAL_CONFIG_NO_POSIX_SIGNALS
  #endif
  
  #ifdef __OS400__
  #define CATCH_INTERNAL_CONFIG_NO_POSIX_SIGNALS
  #define CATCH_CONFIG_COLOUR_NONE
  #endif
  
  ////////////////////////////////////////////////////////////////////////////////
  // Android somehow still does not support std::to_string
  #if defined(__ANDROID__)
  #define CATCH_INTERNAL_CONFIG_NO_CPP11_TO_STRING
  #define CATCH_INTERNAL_CONFIG_ANDROID_LOGWRITE
  #endif
  
  ////////////////////////////////////////////////////////////////////////////////
  // Not all Windows environments support SEH properly
  #if defined(__MINGW32__)
  #define CATCH_INTERNAL_CONFIG_NO_WINDOWS_SEH
  #endif
  
  ////////////////////////////////////////////////////////////////////////////////
  // PS4
  #if defined(__ORBIS__)
  #define CATCH_INTERNAL_CONFIG_NO_NEW_CAPTURE
  #endif
  
  ////////////////////////////////////////////////////////////////////////////////
  // Cygwin
  #ifdef __CYGWIN__
  
  // Required for some versions of Cygwin to declare gettimeofday
  // see:
  // http://stackoverflow.com/questions/36901803/gettimeofday-not-declared-in-this-scope-cygwin
  #define _BSD_SOURCE
  // some versions of cygwin (most) do not support std::to_string. Use the libstd
  // check.
  // https://gcc.gnu.org/onlinedocs/gcc-4.8.2/libstdc++/api/a01053_source.html
  // line 2812-2813
  #if !((__cplusplus >= 201103L) && defined(_GLIBCXX_USE_C99) && \
        !defined(_GLIBCXX_HAVE_BROKEN_VSWPRINTF))
  
  #define CATCH_INTERNAL_CONFIG_NO_CPP11_TO_STRING
  
  #endif
  #endif // __CYGWIN__
  
  ////////////////////////////////////////////////////////////////////////////////
  // Visual C++
  #if defined(_MSC_VER)
  
  #define CATCH_INTERNAL_START_WARNINGS_SUPPRESSION __pragma(warning(push))
  #define CATCH_INTERNAL_STOP_WARNINGS_SUPPRESSION __pragma(warning(pop))
  
  #if _MSC_VER >= 1900 // Visual Studio 2015 or newer
  #define CATCH_INTERNAL_CONFIG_CPP17_UNCAUGHT_EXCEPTIONS
  #endif
  
  // Universal Windows platform does not support SEH
  // Or console colours (or console at all...)
  #if defined(WINAPI_FAMILY) && (WINAPI_FAMILY == WINAPI_FAMILY_APP)
  #define CATCH_CONFIG_COLOUR_NONE
  #else
  #define CATCH_INTERNAL_CONFIG_WINDOWS_SEH
  #endif
  
  // MSVC traditional preprocessor needs some workaround for __VA_ARGS__
  // _MSVC_TRADITIONAL == 0 means new conformant preprocessor
  // _MSVC_TRADITIONAL == 1 means old traditional non-conformant preprocessor
  #if !defined(__clang__) // Handle Clang masquerading for msvc
  #if !defined(_MSVC_TRADITIONAL) || \
      (defined(_MSVC_TRADITIONAL) && _MSVC_TRADITIONAL)
  #define CATCH_INTERNAL_CONFIG_TRADITIONAL_MSVC_PREPROCESSOR
  #endif // MSVC_TRADITIONAL
  #endif // __clang__
  
  #endif // _MSC_VER
  
  #if defined(_REENTRANT) || defined(_MSC_VER)
  // Enable async processing, as -pthread is specified or no additional linking is
  // required
  #define CATCH_INTERNAL_CONFIG_USE_ASYNC
  #endif // _MSC_VER
  
  ////////////////////////////////////////////////////////////////////////////////
  // Check if we are compiled with -fno-exceptions or equivalent
  #if defined(__EXCEPTIONS) || defined(__cpp_exceptions) || defined(_CPPUNWIND)
  #define CATCH_INTERNAL_CONFIG_EXCEPTIONS_ENABLED
  #endif
  
  ////////////////////////////////////////////////////////////////////////////////
  // DJGPP
  #ifdef __DJGPP__
  #define CATCH_INTERNAL_CONFIG_NO_WCHAR
  #endif // __DJGPP__
  
  ////////////////////////////////////////////////////////////////////////////////
  // Embarcadero C++Build
  #if defined(__BORLANDC__)
  #define CATCH_INTERNAL_CONFIG_POLYFILL_ISNAN
  #endif
  
  ////////////////////////////////////////////////////////////////////////////////
  
  // Use of __COUNTER__ is suppressed during code analysis in
  // CLion/AppCode 2017.2.x and former, because __COUNTER__ is not properly
  // handled by it.
  // Otherwise all supported compilers support COUNTER macro,
  // but user still might want to turn it off
  #if (!defined(__JETBRAINS_IDE__) || __JETBRAINS_IDE__ >= 20170300L)
  #define CATCH_INTERNAL_CONFIG_COUNTER
  #endif
  
  ////////////////////////////////////////////////////////////////////////////////
  
  // RTX is a special version of Windows that is real time.
  // This means that it is detected as Windows, but does not provide
  // the same set of capabilities as real Windows does.
  #if defined(UNDER_RTSS) || defined(RTX64_BUILD)
  #define CATCH_INTERNAL_CONFIG_NO_WINDOWS_SEH
  #define CATCH_INTERNAL_CONFIG_NO_ASYNC
  #define CATCH_CONFIG_COLOUR_NONE
  #endif
  
  #if !defined(_GLIBCXX_USE_C99_MATH_TR1)
  #define CATCH_INTERNAL_CONFIG_GLOBAL_NEXTAFTER
  #endif
  
  // Various stdlib support checks that require __has_include
  #if defined(__has_include)
  // Check if string_view is available and usable
  #if __has_include(<string_view>) && defined(CATCH_CPP17_OR_GREATER)
  #define CATCH_INTERNAL_CONFIG_CPP17_STRING_VIEW
  #endif
  
  // Check if optional is available and usable
  #if __has_include(<optional>) && defined(CATCH_CPP17_OR_GREATER)
  #define CATCH_INTERNAL_CONFIG_CPP17_OPTIONAL
  #endif // __has_include(<optional>) && defined(CATCH_CPP17_OR_GREATER)
  
  // Check if byte is available and usable
  #if __has_include(<cstddef>) && defined(CATCH_CPP17_OR_GREATER)
  #define CATCH_INTERNAL_CONFIG_CPP17_BYTE
  #endif // __has_include(<cstddef>) && defined(CATCH_CPP17_OR_GREATER)
  
  // Check if variant is available and usable
  #if __has_include(<variant>) && defined(CATCH_CPP17_OR_GREATER)
  #if defined(__clang__) && (__clang_major__ < 8)
  // work around clang bug with libstdc++
  // https://bugs.llvm.org/show_bug.cgi?id=31852 fix should be in clang 8,
  // workaround in libstdc++ 8.2
  #include <ciso646>
  #if defined(__GLIBCXX__) && defined(_GLIBCXX_RELEASE) && (_GLIBCXX_RELEASE < 9)
  #define CATCH_CONFIG_NO_CPP17_VARIANT
  #else
  #define CATCH_INTERNAL_CONFIG_CPP17_VARIANT
  #endif // defined(__GLIBCXX__) && defined(_GLIBCXX_RELEASE) && (_GLIBCXX_RELEASE
         // < 9)
  #else
  #define CATCH_INTERNAL_CONFIG_CPP17_VARIANT
  #endif // defined(__clang__) && (__clang_major__ < 8)
  #endif // __has_include(<variant>) && defined(CATCH_CPP17_OR_GREATER)
  #endif // defined(__has_include)
  
  #if defined(CATCH_INTERNAL_CONFIG_COUNTER) && \
      !defined(CATCH_CONFIG_NO_COUNTER) && !defined(CATCH_CONFIG_COUNTER)
  #define CATCH_CONFIG_COUNTER
  #endif
  #if defined(CATCH_INTERNAL_CONFIG_WINDOWS_SEH) && \
      !defined(CATCH_CONFIG_NO_WINDOWS_SEH) &&      \
      !defined(CATCH_CONFIG_WINDOWS_SEH) &&         \
      !defined(CATCH_INTERNAL_CONFIG_NO_WINDOWS_SEH)
  #define CATCH_CONFIG_WINDOWS_SEH
  #endif
  // This is set by default, because we assume that unix compilers are
  // posix-signal-compatible by default.
  #if defined(CATCH_INTERNAL_CONFIG_POSIX_SIGNALS) &&     \
      !defined(CATCH_INTERNAL_CONFIG_NO_POSIX_SIGNALS) && \
      !defined(CATCH_CONFIG_NO_POSIX_SIGNALS) &&          \
      !defined(CATCH_CONFIG_POSIX_SIGNALS)
  #define CATCH_CONFIG_POSIX_SIGNALS
  #endif
  // This is set by default, because we assume that compilers with no wchar_t
  // support are just rare exceptions.
  #if !defined(CATCH_INTERNAL_CONFIG_NO_WCHAR) && \
      !defined(CATCH_CONFIG_NO_WCHAR) && !defined(CATCH_CONFIG_WCHAR)
  #define CATCH_CONFIG_WCHAR
  #endif
  
  #if !defined(CATCH_INTERNAL_CONFIG_NO_CPP11_TO_STRING) && \
      !defined(CATCH_CONFIG_NO_CPP11_TO_STRING) &&          \
      !defined(CATCH_CONFIG_CPP11_TO_STRING)
  #define CATCH_CONFIG_CPP11_TO_STRING
  #endif
  
  #if defined(CATCH_INTERNAL_CONFIG_CPP17_OPTIONAL) && \
      !defined(CATCH_CONFIG_NO_CPP17_OPTIONAL) &&      \
      !defined(CATCH_CONFIG_CPP17_OPTIONAL)
  #define CATCH_CONFIG_CPP17_OPTIONAL
  #endif
  
  #if defined(CATCH_INTERNAL_CONFIG_CPP17_UNCAUGHT_EXCEPTIONS) && \
      !defined(CATCH_CONFIG_NO_CPP17_UNCAUGHT_EXCEPTIONS) &&      \
      !defined(CATCH_CONFIG_CPP17_UNCAUGHT_EXCEPTIONS)
  #define CATCH_CONFIG_CPP17_UNCAUGHT_EXCEPTIONS
  #endif
  
  #if defined(CATCH_INTERNAL_CONFIG_CPP17_STRING_VIEW) && \
      !defined(CATCH_CONFIG_NO_CPP17_STRING_VIEW) &&      \
      !defined(CATCH_CONFIG_CPP17_STRING_VIEW)
  #define CATCH_CONFIG_CPP17_STRING_VIEW
  #endif
  
  #if defined(CATCH_INTERNAL_CONFIG_CPP17_VARIANT) && \
      !defined(CATCH_CONFIG_NO_CPP17_VARIANT) &&      \
      !defined(CATCH_CONFIG_CPP17_VARIANT)
  #define CATCH_CONFIG_CPP17_VARIANT
  #endif
  
  #if defined(CATCH_INTERNAL_CONFIG_CPP17_BYTE) && \
      !defined(CATCH_CONFIG_NO_CPP17_BYTE) && !defined(CATCH_CONFIG_CPP17_BYTE)
  #define CATCH_CONFIG_CPP17_BYTE
  #endif
  
  #if defined(CATCH_CONFIG_EXPERIMENTAL_REDIRECT)
  #define CATCH_INTERNAL_CONFIG_NEW_CAPTURE
  #endif
  
  #if defined(CATCH_INTERNAL_CONFIG_NEW_CAPTURE) &&     \
      !defined(CATCH_INTERNAL_CONFIG_NO_NEW_CAPTURE) && \
      !defined(CATCH_CONFIG_NO_NEW_CAPTURE) &&          \
      !defined(CATCH_CONFIG_NEW_CAPTURE)
  #define CATCH_CONFIG_NEW_CAPTURE
  #endif
  
  #if !defined(CATCH_INTERNAL_CONFIG_EXCEPTIONS_ENABLED) && \
      !defined(CATCH_CONFIG_DISABLE_EXCEPTIONS)
  #define CATCH_CONFIG_DISABLE_EXCEPTIONS
  #endif
  
  #if defined(CATCH_INTERNAL_CONFIG_POLYFILL_ISNAN) && \
      !defined(CATCH_CONFIG_NO_POLYFILL_ISNAN) &&      \
      !defined(CATCH_CONFIG_POLYFILL_ISNAN)
  #define CATCH_CONFIG_POLYFILL_ISNAN
  #endif
  
  #if defined(CATCH_INTERNAL_CONFIG_USE_ASYNC) && \
      !defined(CATCH_INTERNAL_CONFIG_NO_ASYNC) && \
      !defined(CATCH_CONFIG_NO_USE_ASYNC) && !defined(CATCH_CONFIG_USE_ASYNC)
  #define CATCH_CONFIG_USE_ASYNC
  #endif
  
  #if defined(CATCH_INTERNAL_CONFIG_ANDROID_LOGWRITE) && \
      !defined(CATCH_CONFIG_NO_ANDROID_LOGWRITE) &&      \
      !defined(CATCH_CONFIG_ANDROID_LOGWRITE)
  #define CATCH_CONFIG_ANDROID_LOGWRITE
  #endif
  
  #if defined(CATCH_INTERNAL_CONFIG_GLOBAL_NEXTAFTER) && \
      !defined(CATCH_CONFIG_NO_GLOBAL_NEXTAFTER) &&      \
      !defined(CATCH_CONFIG_GLOBAL_NEXTAFTER)
  #define CATCH_CONFIG_GLOBAL_NEXTAFTER
  #endif
  
  // Even if we do not think the compiler has that warning, we still have
  // to provide a macro that can be used by the code.
  #if !defined(CATCH_INTERNAL_START_WARNINGS_SUPPRESSION)
  #define CATCH_INTERNAL_START_WARNINGS_SUPPRESSION
  #endif
  #if !defined(CATCH_INTERNAL_STOP_WARNINGS_SUPPRESSION)
  #define CATCH_INTERNAL_STOP_WARNINGS_SUPPRESSION
  #endif
  #if !defined(CATCH_INTERNAL_SUPPRESS_PARENTHESES_WARNINGS)
  #define CATCH_INTERNAL_SUPPRESS_PARENTHESES_WARNINGS
  #endif
  #if !defined(CATCH_INTERNAL_SUPPRESS_GLOBALS_WARNINGS)
  #define CATCH_INTERNAL_SUPPRESS_GLOBALS_WARNINGS
  #endif
  #if !defined(CATCH_INTERNAL_SUPPRESS_UNUSED_WARNINGS)
  #define CATCH_INTERNAL_SUPPRESS_UNUSED_WARNINGS
  #endif
  #if !defined(CATCH_INTERNAL_SUPPRESS_ZERO_VARIADIC_WARNINGS)
  #define CATCH_INTERNAL_SUPPRESS_ZERO_VARIADIC_WARNINGS
  #endif
  
  // The goal of this macro is to avoid evaluation of the arguments, but
  // still have the compiler warn on problems inside...
  #if !defined(CATCH_INTERNAL_IGNORE_BUT_WARN)
  #define CATCH_INTERNAL_IGNORE_BUT_WARN(...)
  #endif
  
  #if defined(__APPLE__) && defined(__apple_build_version__) && \
      (__clang_major__ < 10)
  #undef CATCH_INTERNAL_SUPPRESS_UNUSED_TEMPLATE_WARNINGS
  #elif defined(__clang__) && (__clang_major__ < 5)
  #undef CATCH_INTERNAL_SUPPRESS_UNUSED_TEMPLATE_WARNINGS
  #endif
  
  #if !defined(CATCH_INTERNAL_SUPPRESS_UNUSED_TEMPLATE_WARNINGS)
  #define CATCH_INTERNAL_SUPPRESS_UNUSED_TEMPLATE_WARNINGS
  #endif
  
  #if defined(CATCH_CONFIG_DISABLE_EXCEPTIONS)
  #define CATCH_TRY if ((true))
  #define CATCH_CATCH_ALL if ((false))
  #define CATCH_CATCH_ANON(type) if ((false))
  #else
  #define CATCH_TRY try
  #define CATCH_CATCH_ALL catch (...)
  #define CATCH_CATCH_ANON(type) catch (type)
  #endif
  
  #if defined(CATCH_INTERNAL_CONFIG_TRADITIONAL_MSVC_PREPROCESSOR) && \
      !defined(CATCH_CONFIG_NO_TRADITIONAL_MSVC_PREPROCESSOR) &&      \
      !defined(CATCH_CONFIG_TRADITIONAL_MSVC_PREPROCESSOR)
  #define CATCH_CONFIG_TRADITIONAL_MSVC_PREPROCESSOR
  #endif
  
  // end catch_compiler_capabilities.h
  #define INTERNAL_CATCH_UNIQUE_NAME_LINE2(name, line) name##line
  #define INTERNAL_CATCH_UNIQUE_NAME_LINE(name, line) \
    INTERNAL_CATCH_UNIQUE_NAME_LINE2(name, line)
  #ifdef CATCH_CONFIG_COUNTER
  #define INTERNAL_CATCH_UNIQUE_NAME(name) \
    INTERNAL_CATCH_UNIQUE_NAME_LINE(name, __COUNTER__)
  #else
  #define INTERNAL_CATCH_UNIQUE_NAME(name) \
    INTERNAL_CATCH_UNIQUE_NAME_LINE(name, __LINE__)
  #endif
  
  #include <cstdint>
  #include <iosfwd>
  #include <string>
  
  // We need a dummy global operator<< so we can bring it into Catch namespace
  // later
  struct Catch_global_namespace_dummy
  {};
  std::ostream &operator<<(std::ostream &, Catch_global_namespace_dummy);
  
  namespace Catch
  {
  struct CaseSensitive
  {
    enum Choice
    {
      Yes,
      No
    };
  };
  
  class NonCopyable
  {
    NonCopyable(NonCopyable const &) = delete;
    NonCopyable(NonCopyable &&)      = delete;
    NonCopyable &operator=(NonCopyable const &) = delete;
    NonCopyable &operator=(NonCopyable &&) = delete;
  
  protected:
    NonCopyable();
    virtual ~NonCopyable();
  };
  
  struct SourceLineInfo
  {
    SourceLineInfo() = delete;
    SourceLineInfo(char const *_file, std::size_t _line) noexcept
        : file(_file), line(_line)
    {}
  
    SourceLineInfo(SourceLineInfo const &other) = default;
    SourceLineInfo &operator=(SourceLineInfo const &) = default;
    SourceLineInfo(SourceLineInfo &&) noexcept        = default;
    SourceLineInfo &operator=(SourceLineInfo &&) noexcept = default;
  
    bool empty() const noexcept { return file[0] == '\0'; }
    bool operator==(SourceLineInfo const &other) const noexcept;
    bool operator<(SourceLineInfo const &other) const noexcept;
  
    char const *file;
    std::size_t line;
  };
  
  std::ostream &operator<<(std::ostream &os, SourceLineInfo const &info);
  
  // Bring in operator<< from global namespace into Catch namespace
  // This is necessary because the overload of operator<< above makes
  // lookup stop at namespace Catch
  using ::operator<<;
  
  // Use this in variadic streaming macros to allow
  //    >> +StreamEndStop
  // as well as
  //    >> stuff +StreamEndStop
  struct StreamEndStop
  {
    std::string operator+() const;
  };
  template<typename T>
  T const &operator+(T const &value, StreamEndStop)
  {
    return value;
  }
  } // namespace Catch
  
  #define CATCH_INTERNAL_LINEINFO \
    ::Catch::SourceLineInfo(__FILE__, static_cast<std::size_t>(__LINE__))
  
  // end catch_common.h
  namespace Catch
  {
  struct RegistrarForTagAliases
  {
    RegistrarForTagAliases(char const *alias, char const *tag,
                           SourceLineInfo const &lineInfo);
  };
  
  } // end namespace Catch
  
  #define CATCH_REGISTER_TAG_ALIAS(alias, spec)                      \
    CATCH_INTERNAL_START_WARNINGS_SUPPRESSION                        \
    CATCH_INTERNAL_SUPPRESS_GLOBALS_WARNINGS                         \
    namespace                                                        \
    {                                                                \
    Catch::RegistrarForTagAliases INTERNAL_CATCH_UNIQUE_NAME(        \
        AutoRegisterTagAlias)(alias, spec, CATCH_INTERNAL_LINEINFO); \
    }                                                                \
    CATCH_INTERNAL_STOP_WARNINGS_SUPPRESSION
  
  // end catch_tag_alias_autoregistrar.h
  // start catch_test_registry.h
  
  // start catch_interfaces_testcase.h
  
  #include <vector>
  
  namespace Catch
  {
  class TestSpec;
  
  struct ITestInvoker
  {
    virtual void invoke() const = 0;
    virtual ~ITestInvoker();
  };
  
  class TestCase;
  struct IConfig;
  
  struct ITestCaseRegistry
  {
    virtual ~ITestCaseRegistry();
    virtual std::vector<TestCase> const &getAllTests() const = 0;
    virtual std::vector<TestCase> const &
    getAllTestsSorted(IConfig const &config) const = 0;
  };
  
  bool isThrowSafe(TestCase const &testCase, IConfig const &config);
  bool matchTest(TestCase const &testCase, TestSpec const &testSpec,
                 IConfig const &config);
  std::vector<TestCase> filterTests(std::vector<TestCase> const &testCases,
                                    TestSpec const &testSpec,
                                    IConfig const &config);
  std::vector<TestCase> const &getAllTestCasesSorted(IConfig const &config);
  
  } // namespace Catch
  
  // end catch_interfaces_testcase.h
  // start catch_stringref.h
  
  #include <cassert>
  #include <cstddef>
  #include <iosfwd>
  #include <string>
  
  namespace Catch
  {
  /// A non-owning string class (similar to the forthcoming std::string_view)
  /// Note that, because a StringRef may be a substring of another string,
  /// it may not be null terminated.
  class StringRef
  {
  public:
    using size_type      = std::size_t;
    using const_iterator = const char *;
  
  private:
    static constexpr char const *const s_empty = "";
  
    char const *m_start = s_empty;
    size_type m_size    = 0;
  
  public: // construction
    constexpr StringRef() noexcept = default;
  
    StringRef(char const *rawChars) noexcept;
  
    constexpr StringRef(char const *rawChars, size_type size) noexcept
        : m_start(rawChars), m_size(size)
    {}
  
    StringRef(std::string const &stdString) noexcept
        : m_start(stdString.c_str()), m_size(stdString.size())
    {}
  
    explicit operator std::string() const { return std::string(m_start, m_size); }
  
  public: // operators
    auto operator==(StringRef const &other) const noexcept -> bool;
    auto operator!=(StringRef const &other) const noexcept -> bool
    {
      return !(*this == other);
    }
  
    auto operator[](size_type index) const noexcept -> char
    {
      assert(index < m_size);
      return m_start[index];
    }
  
  public: // named queries
    constexpr auto empty() const noexcept -> bool { return m_size == 0; }
    constexpr auto size() const noexcept -> size_type { return m_size; }
  
    // Returns the current start pointer. If the StringRef is not
    // null-terminated, throws std::domain_exception
    auto c_str() const -> char const *;
  
  public: // substrings and searches
    // Returns a substring of [start, start + length).
    // If start + length > size(), then the substring is [start, size()).
    // If start > size(), then the substring is empty.
    auto substr(size_type start, size_type length) const noexcept -> StringRef;
  
    // Returns the current start pointer. May not be null-terminated.
    auto data() const noexcept -> char const *;
  
    constexpr auto isNullTerminated() const noexcept -> bool
    {
      return m_start[m_size] == '\0';
    }
  
  public: // iterators
    constexpr const_iterator begin() const { return m_start; }
    constexpr const_iterator end() const { return m_start + m_size; }
  };
  
  auto operator+=(std::string &lhs, StringRef const &sr) -> std::string &;
  auto operator<<(std::ostream &os, StringRef const &sr) -> std::ostream &;
  
  constexpr auto operator"" _sr(char const *rawChars, std::size_t size) noexcept
      -> StringRef
  {
    return StringRef(rawChars, size);
  }
  } // namespace Catch
  
  constexpr auto
  operator"" _catch_sr(char const *rawChars, std::size_t size) noexcept
      -> Catch::StringRef
  {
    return Catch::StringRef(rawChars, size);
  }
  
  // end catch_stringref.h
  // start catch_preprocessor.hpp
  
  #define CATCH_RECURSION_LEVEL0(...) __VA_ARGS__
  #define CATCH_RECURSION_LEVEL1(...) \
    CATCH_RECURSION_LEVEL0(           \
        CATCH_RECURSION_LEVEL0(CATCH_RECURSION_LEVEL0(__VA_ARGS__)))
  #define CATCH_RECURSION_LEVEL2(...) \
    CATCH_RECURSION_LEVEL1(           \
        CATCH_RECURSION_LEVEL1(CATCH_RECURSION_LEVEL1(__VA_ARGS__)))
  #define CATCH_RECURSION_LEVEL3(...) \
    CATCH_RECURSION_LEVEL2(           \
        CATCH_RECURSION_LEVEL2(CATCH_RECURSION_LEVEL2(__VA_ARGS__)))
  #define CATCH_RECURSION_LEVEL4(...) \
    CATCH_RECURSION_LEVEL3(           \
        CATCH_RECURSION_LEVEL3(CATCH_RECURSION_LEVEL3(__VA_ARGS__)))
  #define CATCH_RECURSION_LEVEL5(...) \
    CATCH_RECURSION_LEVEL4(           \
        CATCH_RECURSION_LEVEL4(CATCH_RECURSION_LEVEL4(__VA_ARGS__)))
  
  #ifdef CATCH_CONFIG_TRADITIONAL_MSVC_PREPROCESSOR
  #define INTERNAL_CATCH_EXPAND_VARGS(...) __VA_ARGS__
  // MSVC needs more evaluations
  #define CATCH_RECURSION_LEVEL6(...) \
    CATCH_RECURSION_LEVEL5(           \
        CATCH_RECURSION_LEVEL5(CATCH_RECURSION_LEVEL5(__VA_ARGS__)))
  #define CATCH_RECURSE(...) \
    CATCH_RECURSION_LEVEL6(CATCH_RECURSION_LEVEL6(__VA_ARGS__))
  #else
  #define CATCH_RECURSE(...) CATCH_RECURSION_LEVEL5(__VA_ARGS__)
  #endif
  
  #define CATCH_REC_END(...)
  #define CATCH_REC_OUT
  
  #define CATCH_EMPTY()
  #define CATCH_DEFER(id) id CATCH_EMPTY()
  
  #define CATCH_REC_GET_END2() 0, CATCH_REC_END
  #define CATCH_REC_GET_END1(...) CATCH_REC_GET_END2
  #define CATCH_REC_GET_END(...) CATCH_REC_GET_END1
  #define CATCH_REC_NEXT0(test, next, ...) next CATCH_REC_OUT
  #define CATCH_REC_NEXT1(test, next) CATCH_DEFER(CATCH_REC_NEXT0)(test, next, 0)
  #define CATCH_REC_NEXT(test, next) CATCH_REC_NEXT1(CATCH_REC_GET_END test, next)
  
  #define CATCH_REC_LIST0(f, x, peek, ...)                             \
    , f(x) CATCH_DEFER(CATCH_REC_NEXT(peek, CATCH_REC_LIST1))(f, peek, \
                                                              __VA_ARGS__)
  #define CATCH_REC_LIST1(f, x, peek, ...)                             \
    , f(x) CATCH_DEFER(CATCH_REC_NEXT(peek, CATCH_REC_LIST0))(f, peek, \
                                                              __VA_ARGS__)
  #define CATCH_REC_LIST2(f, x, peek, ...) \
    f(x) CATCH_DEFER(CATCH_REC_NEXT(peek, CATCH_REC_LIST1))(f, peek, __VA_ARGS__)
  
  #define CATCH_REC_LIST0_UD(f, userdata, x, peek, ...)                     \
    , f(userdata, x) CATCH_DEFER(CATCH_REC_NEXT(peek, CATCH_REC_LIST1_UD))( \
          f, userdata, peek, __VA_ARGS__)
  #define CATCH_REC_LIST1_UD(f, userdata, x, peek, ...)                     \
    , f(userdata, x) CATCH_DEFER(CATCH_REC_NEXT(peek, CATCH_REC_LIST0_UD))( \
          f, userdata, peek, __VA_ARGS__)
  #define CATCH_REC_LIST2_UD(f, userdata, x, peek, ...)                   \
    f(userdata, x) CATCH_DEFER(CATCH_REC_NEXT(peek, CATCH_REC_LIST1_UD))( \
        f, userdata, peek, __VA_ARGS__)
  
  // Applies the function macro `f` to each of the remaining parameters, inserts
  // commas between the results, and passes userdata as the first parameter to
  // each invocation, e.g. CATCH_REC_LIST_UD(f, x, a, b, c) evaluates to f(x, a),
  // f(x, b), f(x, c)
  #define CATCH_REC_LIST_UD(f, userdata, ...) \
    CATCH_RECURSE(                            \
        CATCH_REC_LIST2_UD(f, userdata, __VA_ARGS__, ()()(), ()()(), ()()(), 0))
  
  #define CATCH_REC_LIST(f, ...) \
    CATCH_RECURSE(CATCH_REC_LIST2(f, __VA_ARGS__, ()()(), ()()(), ()()(), 0))
  
  #define INTERNAL_CATCH_EXPAND1(param) INTERNAL_CATCH_EXPAND2(param)
  #define INTERNAL_CATCH_EXPAND2(...) INTERNAL_CATCH_NO##__VA_ARGS__
  #define INTERNAL_CATCH_DEF(...) INTERNAL_CATCH_DEF __VA_ARGS__
  #define INTERNAL_CATCH_NOINTERNAL_CATCH_DEF
  #define INTERNAL_CATCH_STRINGIZE(...) INTERNAL_CATCH_STRINGIZE2(__VA_ARGS__)
  #ifndef CATCH_CONFIG_TRADITIONAL_MSVC_PREPROCESSOR
  #define INTERNAL_CATCH_STRINGIZE2(...) #__VA_ARGS__
  #define INTERNAL_CATCH_STRINGIZE_WITHOUT_PARENS(param) \
    INTERNAL_CATCH_STRINGIZE(INTERNAL_CATCH_REMOVE_PARENS(param))
  #else
  // MSVC is adding extra space and needs another indirection to expand
  // INTERNAL_CATCH_NOINTERNAL_CATCH_DEF
  #define INTERNAL_CATCH_STRINGIZE2(...) INTERNAL_CATCH_STRINGIZE3(__VA_ARGS__)
  #define INTERNAL_CATCH_STRINGIZE3(...) #__VA_ARGS__
  #define INTERNAL_CATCH_STRINGIZE_WITHOUT_PARENS(param) \
    (INTERNAL_CATCH_STRINGIZE(INTERNAL_CATCH_REMOVE_PARENS(param)) + 1)
  #endif
  
  #define INTERNAL_CATCH_MAKE_NAMESPACE2(...) ns_##__VA_ARGS__
  #define INTERNAL_CATCH_MAKE_NAMESPACE(name) INTERNAL_CATCH_MAKE_NAMESPACE2(name)
  
  #define INTERNAL_CATCH_REMOVE_PARENS(...) \
    INTERNAL_CATCH_EXPAND1(INTERNAL_CATCH_DEF __VA_ARGS__)
  
  #ifndef CATCH_CONFIG_TRADITIONAL_MSVC_PREPROCESSOR
  #define INTERNAL_CATCH_MAKE_TYPE_LIST2(...) \
    decltype(get_wrapper<INTERNAL_CATCH_REMOVE_PARENS_GEN(__VA_ARGS__)>())
  #define INTERNAL_CATCH_MAKE_TYPE_LIST(...) \
    INTERNAL_CATCH_MAKE_TYPE_LIST2(INTERNAL_CATCH_REMOVE_PARENS(__VA_ARGS__))
  #else
  #define INTERNAL_CATCH_MAKE_TYPE_LIST2(...) \
    INTERNAL_CATCH_EXPAND_VARGS(              \
        decltype(get_wrapper<INTERNAL_CATCH_REMOVE_PARENS_GEN(__VA_ARGS__)>()))
  #define INTERNAL_CATCH_MAKE_TYPE_LIST(...)                    \
    INTERNAL_CATCH_EXPAND_VARGS(INTERNAL_CATCH_MAKE_TYPE_LIST2( \
        INTERNAL_CATCH_REMOVE_PARENS(__VA_ARGS__)))
  #endif
  
  #define INTERNAL_CATCH_MAKE_TYPE_LISTS_FROM_TYPES(...) \
    CATCH_REC_LIST(INTERNAL_CATCH_MAKE_TYPE_LIST, __VA_ARGS__)
  
  #define INTERNAL_CATCH_REMOVE_PARENS_1_ARG(_0) INTERNAL_CATCH_REMOVE_PARENS(_0)
  #define INTERNAL_CATCH_REMOVE_PARENS_2_ARG(_0, _1) \
    INTERNAL_CATCH_REMOVE_PARENS(_0), INTERNAL_CATCH_REMOVE_PARENS_1_ARG(_1)
  #define INTERNAL_CATCH_REMOVE_PARENS_3_ARG(_0, _1, _2) \
    INTERNAL_CATCH_REMOVE_PARENS(_0), INTERNAL_CATCH_REMOVE_PARENS_2_ARG(_1, _2)
  #define INTERNAL_CATCH_REMOVE_PARENS_4_ARG(_0, _1, _2, _3) \
    INTERNAL_CATCH_REMOVE_PARENS(_0),                        \
        INTERNAL_CATCH_REMOVE_PARENS_3_ARG(_1, _2, _3)
  #define INTERNAL_CATCH_REMOVE_PARENS_5_ARG(_0, _1, _2, _3, _4) \
    INTERNAL_CATCH_REMOVE_PARENS(_0),                            \
        INTERNAL_CATCH_REMOVE_PARENS_4_ARG(_1, _2, _3, _4)
  #define INTERNAL_CATCH_REMOVE_PARENS_6_ARG(_0, _1, _2, _3, _4, _5) \
    INTERNAL_CATCH_REMOVE_PARENS(_0),                                \
        INTERNAL_CATCH_REMOVE_PARENS_5_ARG(_1, _2, _3, _4, _5)
  #define INTERNAL_CATCH_REMOVE_PARENS_7_ARG(_0, _1, _2, _3, _4, _5, _6) \
    INTERNAL_CATCH_REMOVE_PARENS(_0),                                    \
        INTERNAL_CATCH_REMOVE_PARENS_6_ARG(_1, _2, _4, _5, _6)
  #define INTERNAL_CATCH_REMOVE_PARENS_8_ARG(_0, _1, _2, _3, _4, _5, _6, _7) \
    INTERNAL_CATCH_REMOVE_PARENS(_0),                                        \
        INTERNAL_CATCH_REMOVE_PARENS_7_ARG(_1, _2, _3, _4, _5, _6, _7)
  #define INTERNAL_CATCH_REMOVE_PARENS_9_ARG(_0, _1, _2, _3, _4, _5, _6, _7, _8) \
    INTERNAL_CATCH_REMOVE_PARENS(_0),                                            \
        INTERNAL_CATCH_REMOVE_PARENS_8_ARG(_1, _2, _3, _4, _5, _6, _7, _8)
  #define INTERNAL_CATCH_REMOVE_PARENS_10_ARG(_0, _1, _2, _3, _4, _5, _6, _7, \
                                              _8, _9)                         \
    INTERNAL_CATCH_REMOVE_PARENS(_0),                                         \
        INTERNAL_CATCH_REMOVE_PARENS_9_ARG(_1, _2, _3, _4, _5, _6, _7, _8, _9)
  #define INTERNAL_CATCH_REMOVE_PARENS_11_ARG(_0, _1, _2, _3, _4, _5, _6, _7,   \
                                              _8, _9, _10)                      \
    INTERNAL_CATCH_REMOVE_PARENS(_0),                                           \
        INTERNAL_CATCH_REMOVE_PARENS_10_ARG(_1, _2, _3, _4, _5, _6, _7, _8, _9, \
                                            _10)
  
  #define INTERNAL_CATCH_VA_NARGS_IMPL(_0, _1, _2, _3, _4, _5, _6, _7, _8, _9, \
                                       _10, N, ...)                            \
    N
  
  #define INTERNAL_CATCH_TYPE_GEN                                                \
    template<typename...>                                                        \
    struct TypeList                                                              \
    {};                                                                          \
    template<typename... Ts>                                                     \
    constexpr auto get_wrapper() noexcept->TypeList<Ts...>                       \
    {                                                                            \
      return {};                                                                 \
    }                                                                            \
    template<template<typename...> class...>                                     \
    struct TemplateTypeList                                                      \
    {};                                                                          \
    template<template<typename...> class... Cs>                                  \
    constexpr auto get_wrapper() noexcept->TemplateTypeList<Cs...>               \
    {                                                                            \
      return {};                                                                 \
    }                                                                            \
    template<typename...>                                                        \
    struct append;                                                               \
    template<typename...>                                                        \
    struct rewrap;                                                               \
    template<template<typename...> class, typename...>                           \
    struct create;                                                               \
    template<template<typename...> class, typename>                              \
    struct convert;                                                              \
                                                                                 \
    template<typename T>                                                         \
    struct append<T>                                                             \
    {                                                                            \
      using type = T;                                                            \
    };                                                                           \
    template<template<typename...> class L1, typename... E1,                     \
             template<typename...> class L2, typename... E2, typename... Rest>   \
    struct append<L1<E1...>, L2<E2...>, Rest...>                                 \
    {                                                                            \
      using type = typename append<L1<E1..., E2...>, Rest...>::type;             \
    };                                                                           \
    template<template<typename...> class L1, typename... E1, typename... Rest>   \
    struct append<L1<E1...>, TypeList<mpl_::na>, Rest...>                        \
    {                                                                            \
      using type = L1<E1...>;                                                    \
    };                                                                           \
                                                                                 \
    template<template<typename...> class Container,                              \
             template<typename...> class List, typename... elems>                \
    struct rewrap<TemplateTypeList<Container>, List<elems...>>                   \
    {                                                                            \
      using type = TypeList<Container<elems...>>;                                \
    };                                                                           \
    template<template<typename...> class Container,                              \
             template<typename...> class List, class... Elems,                   \
             typename... Elements>                                               \
    struct rewrap<TemplateTypeList<Container>, List<Elems...>, Elements...>      \
    {                                                                            \
      using type = typename append<TypeList<Container<Elems...>>,                \
                                   typename rewrap<TemplateTypeList<Container>,  \
                                                   Elements...>::type>::type;    \
    };                                                                           \
                                                                                 \
    template<template<typename...> class Final,                                  \
             template<typename...> class... Containers, typename... Types>       \
    struct create<Final, TemplateTypeList<Containers...>, TypeList<Types...>>    \
    {                                                                            \
      using type =                                                               \
          typename append<Final<>, typename rewrap<TemplateTypeList<Containers>, \
                                                   Types...>::type...>::type;    \
    };                                                                           \
    template<template<typename...> class Final,                                  \
             template<typename...> class List, typename... Ts>                   \
    struct convert<Final, List<Ts...>>                                           \
    {                                                                            \
      using type = typename append<Final<>, TypeList<Ts>...>::type;              \
    };
  
  #define INTERNAL_CATCH_NTTP_1(signature, ...)                                 \
    template<INTERNAL_CATCH_REMOVE_PARENS(signature)>                           \
    struct Nttp                                                                 \
    {};                                                                         \
    template<INTERNAL_CATCH_REMOVE_PARENS(signature)>                           \
    constexpr auto get_wrapper() noexcept->Nttp<__VA_ARGS__>                    \
    {                                                                           \
      return {};                                                                \
    }                                                                           \
    template<template<INTERNAL_CATCH_REMOVE_PARENS(signature)> class...>        \
    struct NttpTemplateTypeList                                                 \
    {};                                                                         \
    template<template<INTERNAL_CATCH_REMOVE_PARENS(signature)> class... Cs>     \
    constexpr auto get_wrapper() noexcept->NttpTemplateTypeList<Cs...>          \
    {                                                                           \
      return {};                                                                \
    }                                                                           \
                                                                                \
    template<template<INTERNAL_CATCH_REMOVE_PARENS(signature)> class Container, \
             template<INTERNAL_CATCH_REMOVE_PARENS(signature)> class List,      \
             INTERNAL_CATCH_REMOVE_PARENS(signature)>                           \
    struct rewrap<NttpTemplateTypeList<Container>, List<__VA_ARGS__>>           \
    {                                                                           \
      using type = TypeList<Container<__VA_ARGS__>>;                            \
    };                                                                          \
    template<template<INTERNAL_CATCH_REMOVE_PARENS(signature)> class Container, \
             template<INTERNAL_CATCH_REMOVE_PARENS(signature)> class List,      \
             INTERNAL_CATCH_REMOVE_PARENS(signature), typename... Elements>     \
    struct rewrap<NttpTemplateTypeList<Container>, List<__VA_ARGS__>,           \
                  Elements...>                                                  \
    {                                                                           \
      using type =                                                              \
          typename append<TypeList<Container<__VA_ARGS__>>,                     \
                          typename rewrap<NttpTemplateTypeList<Container>,      \
                                          Elements...>::type>::type;            \
    };                                                                          \
    template<template<typename...> class Final,                                 \
             template<INTERNAL_CATCH_REMOVE_PARENS(signature)>                  \
             class... Containers,                                               \
             typename... Types>                                                 \
    struct create<Final, NttpTemplateTypeList<Containers...>,                   \
                  TypeList<Types...>>                                           \
    {                                                                           \
      using type =                                                              \
          typename append<Final<>,                                              \
                          typename rewrap<NttpTemplateTypeList<Containers>,     \
                                          Types...>::type...>::type;            \
    };
  
  #define INTERNAL_CATCH_DECLARE_SIG_TEST0(TestName)
  #define INTERNAL_CATCH_DECLARE_SIG_TEST1(TestName, signature) \
    template<INTERNAL_CATCH_REMOVE_PARENS(signature)>           \
    static void TestName()
  #define INTERNAL_CATCH_DECLARE_SIG_TEST_X(TestName, signature, ...) \
    template<INTERNAL_CATCH_REMOVE_PARENS(signature)>                 \
    static void TestName()
  
  #define INTERNAL_CATCH_DEFINE_SIG_TEST0(TestName)
  #define INTERNAL_CATCH_DEFINE_SIG_TEST1(TestName, signature) \
    template<INTERNAL_CATCH_REMOVE_PARENS(signature)>          \
    static void TestName()
  #define INTERNAL_CATCH_DEFINE_SIG_TEST_X(TestName, signature, ...) \
    template<INTERNAL_CATCH_REMOVE_PARENS(signature)>                \
    static void TestName()
  
  #define INTERNAL_CATCH_NTTP_REGISTER0(TestFunc, signature)                    \
    template<typename Type>                                                     \
    void reg_test(TypeList<Type>, Catch::NameAndTags nameAndTags)               \
    {                                                                           \
      Catch::AutoReg(Catch::makeTestInvoker(&TestFunc<Type>),                   \
                     CATCH_INTERNAL_LINEINFO, Catch::StringRef(), nameAndTags); \
    }
  
  #define INTERNAL_CATCH_NTTP_REGISTER(TestFunc, signature, ...)                \
    template<INTERNAL_CATCH_REMOVE_PARENS(signature)>                           \
    void reg_test(Nttp<__VA_ARGS__>, Catch::NameAndTags nameAndTags)            \
    {                                                                           \
      Catch::AutoReg(Catch::makeTestInvoker(&TestFunc<__VA_ARGS__>),            \
                     CATCH_INTERNAL_LINEINFO, Catch::StringRef(), nameAndTags); \
    }
  
  #define INTERNAL_CATCH_NTTP_REGISTER_METHOD0(TestName, signature, ...) \
    template<typename Type>                                              \
    void reg_test(TypeList<Type>, Catch::StringRef className,            \
                  Catch::NameAndTags nameAndTags)                        \
    {                                                                    \
      Catch::AutoReg(Catch::makeTestInvoker(&TestName<Type>::test),      \
                     CATCH_INTERNAL_LINEINFO, className, nameAndTags);   \
    }
  
  #define INTERNAL_CATCH_NTTP_REGISTER_METHOD(TestName, signature, ...)    \
    template<INTERNAL_CATCH_REMOVE_PARENS(signature)>                      \
    void reg_test(Nttp<__VA_ARGS__>, Catch::StringRef className,           \
                  Catch::NameAndTags nameAndTags)                          \
    {                                                                      \
      Catch::AutoReg(Catch::makeTestInvoker(&TestName<__VA_ARGS__>::test), \
                     CATCH_INTERNAL_LINEINFO, className, nameAndTags);     \
    }
  
  #define INTERNAL_CATCH_DECLARE_SIG_TEST_METHOD0(TestName, ClassName)
  #define INTERNAL_CATCH_DECLARE_SIG_TEST_METHOD1(TestName, ClassName,  \
                                                  signature)            \
    template<typename TestType>                                         \
    struct TestName : INTERNAL_CATCH_REMOVE_PARENS(ClassName)<TestType> \
    {                                                                   \
      void test();                                                      \
    }
  
  #define INTERNAL_CATCH_DECLARE_SIG_TEST_METHOD_X(TestName, ClassName,    \
                                                   signature, ...)         \
    template<INTERNAL_CATCH_REMOVE_PARENS(signature)>                      \
    struct TestName : INTERNAL_CATCH_REMOVE_PARENS(ClassName)<__VA_ARGS__> \
    {                                                                      \
      void test();                                                         \
    }
  
  #define INTERNAL_CATCH_DEFINE_SIG_TEST_METHOD0(TestName)
  #define INTERNAL_CATCH_DEFINE_SIG_TEST_METHOD1(TestName, signature) \
    template<typename TestType>                                       \
    void INTERNAL_CATCH_MAKE_NAMESPACE(TestName)::TestName<TestType>::test()
  #define INTERNAL_CATCH_DEFINE_SIG_TEST_METHOD_X(TestName, signature, ...) \
    template<INTERNAL_CATCH_REMOVE_PARENS(signature)>                       \
    void INTERNAL_CATCH_MAKE_NAMESPACE(TestName)::TestName<__VA_ARGS__>::test()
  
  #ifndef CATCH_CONFIG_TRADITIONAL_MSVC_PREPROCESSOR
  #define INTERNAL_CATCH_NTTP_0
  #define INTERNAL_CATCH_NTTP_GEN(...)                                          \
    INTERNAL_CATCH_VA_NARGS_IMPL(                                               \
        __VA_ARGS__, INTERNAL_CATCH_NTTP_1(__VA_ARGS__),                        \
        INTERNAL_CATCH_NTTP_1(__VA_ARGS__), INTERNAL_CATCH_NTTP_1(__VA_ARGS__), \
        INTERNAL_CATCH_NTTP_1(__VA_ARGS__), INTERNAL_CATCH_NTTP_1(__VA_ARGS__), \
        INTERNAL_CATCH_NTTP_1(__VA_ARGS__), INTERNAL_CATCH_NTTP_1(__VA_ARGS__), \
        INTERNAL_CATCH_NTTP_1(__VA_ARGS__), INTERNAL_CATCH_NTTP_1(__VA_ARGS__), \
        INTERNAL_CATCH_NTTP_1(__VA_ARGS__), INTERNAL_CATCH_NTTP_0)
  #define INTERNAL_CATCH_DEFINE_SIG_TEST_METHOD(TestName, ...)            \
    INTERNAL_CATCH_VA_NARGS_IMPL("dummy", __VA_ARGS__,                    \
                                 INTERNAL_CATCH_DEFINE_SIG_TEST_METHOD_X, \
                                 INTERNAL_CATCH_DEFINE_SIG_TEST_METHOD_X, \
                                 INTERNAL_CATCH_DEFINE_SIG_TEST_METHOD_X, \
                                 INTERNAL_CATCH_DEFINE_SIG_TEST_METHOD_X, \
                                 INTERNAL_CATCH_DEFINE_SIG_TEST_METHOD_X, \
                                 INTERNAL_CATCH_DEFINE_SIG_TEST_METHOD_X, \
                                 INTERNAL_CATCH_DEFINE_SIG_TEST_METHOD_X, \
                                 INTERNAL_CATCH_DEFINE_SIG_TEST_METHOD_X, \
                                 INTERNAL_CATCH_DEFINE_SIG_TEST_METHOD_X, \
                                 INTERNAL_CATCH_DEFINE_SIG_TEST_METHOD1,  \
                                 INTERNAL_CATCH_DEFINE_SIG_TEST_METHOD0)  \
    (TestName, __VA_ARGS__)
  #define INTERNAL_CATCH_DECLARE_SIG_TEST_METHOD(TestName, ClassName, ...) \
    INTERNAL_CATCH_VA_NARGS_IMPL("dummy", __VA_ARGS__,                     \
                                 INTERNAL_CATCH_DECLARE_SIG_TEST_METHOD_X, \
                                 INTERNAL_CATCH_DECLARE_SIG_TEST_METHOD_X, \
                                 INTERNAL_CATCH_DECLARE_SIG_TEST_METHOD_X, \
                                 INTERNAL_CATCH_DECLARE_SIG_TEST_METHOD_X, \
                                 INTERNAL_CATCH_DECLARE_SIG_TEST_METHOD_X, \
                                 INTERNAL_CATCH_DECLARE_SIG_TEST_METHOD_X, \
                                 INTERNAL_CATCH_DECLARE_SIG_TEST_METHOD_X, \
                                 INTERNAL_CATCH_DECLARE_SIG_TEST_METHOD_X, \
                                 INTERNAL_CATCH_DECLARE_SIG_TEST_METHOD_X, \
                                 INTERNAL_CATCH_DECLARE_SIG_TEST_METHOD1,  \
                                 INTERNAL_CATCH_DECLARE_SIG_TEST_METHOD0)  \
    (TestName, ClassName, __VA_ARGS__)
  #define INTERNAL_CATCH_NTTP_REG_METHOD_GEN(TestName, ...)            \
    INTERNAL_CATCH_VA_NARGS_IMPL("dummy", __VA_ARGS__,                 \
                                 INTERNAL_CATCH_NTTP_REGISTER_METHOD,  \
                                 INTERNAL_CATCH_NTTP_REGISTER_METHOD,  \
                                 INTERNAL_CATCH_NTTP_REGISTER_METHOD,  \
                                 INTERNAL_CATCH_NTTP_REGISTER_METHOD,  \
                                 INTERNAL_CATCH_NTTP_REGISTER_METHOD,  \
                                 INTERNAL_CATCH_NTTP_REGISTER_METHOD,  \
                                 INTERNAL_CATCH_NTTP_REGISTER_METHOD,  \
                                 INTERNAL_CATCH_NTTP_REGISTER_METHOD,  \
                                 INTERNAL_CATCH_NTTP_REGISTER_METHOD,  \
                                 INTERNAL_CATCH_NTTP_REGISTER_METHOD0, \
                                 INTERNAL_CATCH_NTTP_REGISTER_METHOD0) \
    (TestName, __VA_ARGS__)
  #define INTERNAL_CATCH_NTTP_REG_GEN(TestFunc, ...)                  \
    INTERNAL_CATCH_VA_NARGS_IMPL(                                     \
        "dummy", __VA_ARGS__, INTERNAL_CATCH_NTTP_REGISTER,           \
        INTERNAL_CATCH_NTTP_REGISTER, INTERNAL_CATCH_NTTP_REGISTER,   \
        INTERNAL_CATCH_NTTP_REGISTER, INTERNAL_CATCH_NTTP_REGISTER,   \
        INTERNAL_CATCH_NTTP_REGISTER, INTERNAL_CATCH_NTTP_REGISTER,   \
        INTERNAL_CATCH_NTTP_REGISTER, INTERNAL_CATCH_NTTP_REGISTER,   \
        INTERNAL_CATCH_NTTP_REGISTER0, INTERNAL_CATCH_NTTP_REGISTER0) \
    (TestFunc, __VA_ARGS__)
  #define INTERNAL_CATCH_DEFINE_SIG_TEST(TestName, ...)                     \
    INTERNAL_CATCH_VA_NARGS_IMPL(                                           \
        "dummy", __VA_ARGS__, INTERNAL_CATCH_DEFINE_SIG_TEST_X,             \
        INTERNAL_CATCH_DEFINE_SIG_TEST_X, INTERNAL_CATCH_DEFINE_SIG_TEST_X, \
        INTERNAL_CATCH_DEFINE_SIG_TEST_X, INTERNAL_CATCH_DEFINE_SIG_TEST_X, \
        INTERNAL_CATCH_DEFINE_SIG_TEST_X, INTERNAL_CATCH_DEFINE_SIG_TEST_X, \
        INTERNAL_CATCH_DEFINE_SIG_TEST_X, INTERNAL_CATCH_DEFINE_SIG_TEST_X, \
        INTERNAL_CATCH_DEFINE_SIG_TEST1, INTERNAL_CATCH_DEFINE_SIG_TEST0)   \
    (TestName, __VA_ARGS__)
  #define INTERNAL_CATCH_DECLARE_SIG_TEST(TestName, ...)                      \
    INTERNAL_CATCH_VA_NARGS_IMPL(                                             \
        "dummy", __VA_ARGS__, INTERNAL_CATCH_DECLARE_SIG_TEST_X,              \
        INTERNAL_CATCH_DECLARE_SIG_TEST_X, INTERNAL_CATCH_DECLARE_SIG_TEST_X, \
        INTERNAL_CATCH_DECLARE_SIG_TEST_X, INTERNAL_CATCH_DECLARE_SIG_TEST_X, \
        INTERNAL_CATCH_DECLARE_SIG_TEST_X, INTERNAL_CATCH_DEFINE_SIG_TEST_X,  \
        INTERNAL_CATCH_DECLARE_SIG_TEST_X, INTERNAL_CATCH_DECLARE_SIG_TEST_X, \
        INTERNAL_CATCH_DECLARE_SIG_TEST1, INTERNAL_CATCH_DECLARE_SIG_TEST0)   \
    (TestName, __VA_ARGS__)
  #define INTERNAL_CATCH_REMOVE_PARENS_GEN(...)                                  \
    INTERNAL_CATCH_VA_NARGS_IMPL(                                                \
        __VA_ARGS__, INTERNAL_CATCH_REMOVE_PARENS_11_ARG,                        \
        INTERNAL_CATCH_REMOVE_PARENS_10_ARG, INTERNAL_CATCH_REMOVE_PARENS_9_ARG, \
        INTERNAL_CATCH_REMOVE_PARENS_8_ARG, INTERNAL_CATCH_REMOVE_PARENS_7_ARG,  \
        INTERNAL_CATCH_REMOVE_PARENS_6_ARG, INTERNAL_CATCH_REMOVE_PARENS_5_ARG,  \
        INTERNAL_CATCH_REMOVE_PARENS_4_ARG, INTERNAL_CATCH_REMOVE_PARENS_3_ARG,  \
        INTERNAL_CATCH_REMOVE_PARENS_2_ARG, INTERNAL_CATCH_REMOVE_PARENS_1_ARG)  \
    (__VA_ARGS__)
  #else
  #define INTERNAL_CATCH_NTTP_0(signature)
  #define INTERNAL_CATCH_NTTP_GEN(...)                                       \
    INTERNAL_CATCH_EXPAND_VARGS(INTERNAL_CATCH_VA_NARGS_IMPL(                \
        __VA_ARGS__, INTERNAL_CATCH_NTTP_1, INTERNAL_CATCH_NTTP_1,           \
        INTERNAL_CATCH_NTTP_1, INTERNAL_CATCH_NTTP_1, INTERNAL_CATCH_NTTP_1, \
        INTERNAL_CATCH_NTTP_1, INTERNAL_CATCH_NTTP_1, INTERNAL_CATCH_NTTP_1, \
        INTERNAL_CATCH_NTTP_1, INTERNAL_CATCH_NTTP_1,                        \
        INTERNAL_CATCH_NTTP_0)(__VA_ARGS__))
  #define INTERNAL_CATCH_DEFINE_SIG_TEST_METHOD(TestName, ...)         \
    INTERNAL_CATCH_EXPAND_VARGS(INTERNAL_CATCH_VA_NARGS_IMPL(          \
        "dummy", __VA_ARGS__, INTERNAL_CATCH_DEFINE_SIG_TEST_METHOD_X, \
        INTERNAL_CATCH_DEFINE_SIG_TEST_METHOD_X,                       \
        INTERNAL_CATCH_DEFINE_SIG_TEST_METHOD_X,                       \
        INTERNAL_CATCH_DEFINE_SIG_TEST_METHOD_X,                       \
        INTERNAL_CATCH_DEFINE_SIG_TEST_METHOD_X,                       \
        INTERNAL_CATCH_DEFINE_SIG_TEST_METHOD_X,                       \
        INTERNAL_CATCH_DEFINE_SIG_TEST_METHOD_X,                       \
        INTERNAL_CATCH_DEFINE_SIG_TEST_METHOD_X,                       \
        INTERNAL_CATCH_DEFINE_SIG_TEST_METHOD_X,                       \
        INTERNAL_CATCH_DEFINE_SIG_TEST_METHOD1,                        \
        INTERNAL_CATCH_DEFINE_SIG_TEST_METHOD0)(TestName, __VA_ARGS__))
  #define INTERNAL_CATCH_DECLARE_SIG_TEST_METHOD(TestName, ClassName, ...) \
    INTERNAL_CATCH_EXPAND_VARGS(INTERNAL_CATCH_VA_NARGS_IMPL(              \
        "dummy", __VA_ARGS__, INTERNAL_CATCH_DECLARE_SIG_TEST_METHOD_X,    \
        INTERNAL_CATCH_DECLARE_SIG_TEST_METHOD_X,                          \
        INTERNAL_CATCH_DECLARE_SIG_TEST_METHOD_X,                          \
        INTERNAL_CATCH_DECLARE_SIG_TEST_METHOD_X,                          \
        INTERNAL_CATCH_DECLARE_SIG_TEST_METHOD_X,                          \
        INTERNAL_CATCH_DECLARE_SIG_TEST_METHOD_X,                          \
        INTERNAL_CATCH_DECLARE_SIG_TEST_METHOD_X,                          \
        INTERNAL_CATCH_DECLARE_SIG_TEST_METHOD_X,                          \
        INTERNAL_CATCH_DECLARE_SIG_TEST_METHOD_X,                          \
        INTERNAL_CATCH_DECLARE_SIG_TEST_METHOD1,                           \
        INTERNAL_CATCH_DECLARE_SIG_TEST_METHOD0)(TestName, ClassName,      \
                                                 __VA_ARGS__))
  #define INTERNAL_CATCH_NTTP_REG_METHOD_GEN(TestName, ...)        \
    INTERNAL_CATCH_EXPAND_VARGS(INTERNAL_CATCH_VA_NARGS_IMPL(      \
        "dummy", __VA_ARGS__, INTERNAL_CATCH_NTTP_REGISTER_METHOD, \
        INTERNAL_CATCH_NTTP_REGISTER_METHOD,                       \
        INTERNAL_CATCH_NTTP_REGISTER_METHOD,                       \
        INTERNAL_CATCH_NTTP_REGISTER_METHOD,                       \
        INTERNAL_CATCH_NTTP_REGISTER_METHOD,                       \
        INTERNAL_CATCH_NTTP_REGISTER_METHOD,                       \
        INTERNAL_CATCH_NTTP_REGISTER_METHOD,                       \
        INTERNAL_CATCH_NTTP_REGISTER_METHOD,                       \
        INTERNAL_CATCH_NTTP_REGISTER_METHOD,                       \
        INTERNAL_CATCH_NTTP_REGISTER_METHOD0,                      \
        INTERNAL_CATCH_NTTP_REGISTER_METHOD0)(TestName, __VA_ARGS__))
  #define INTERNAL_CATCH_NTTP_REG_GEN(TestFunc, ...)                \
    INTERNAL_CATCH_EXPAND_VARGS(INTERNAL_CATCH_VA_NARGS_IMPL(       \
        "dummy", __VA_ARGS__, INTERNAL_CATCH_NTTP_REGISTER,         \
        INTERNAL_CATCH_NTTP_REGISTER, INTERNAL_CATCH_NTTP_REGISTER, \
        INTERNAL_CATCH_NTTP_REGISTER, INTERNAL_CATCH_NTTP_REGISTER, \
        INTERNAL_CATCH_NTTP_REGISTER, INTERNAL_CATCH_NTTP_REGISTER, \
        INTERNAL_CATCH_NTTP_REGISTER, INTERNAL_CATCH_NTTP_REGISTER, \
        INTERNAL_CATCH_NTTP_REGISTER0,                              \
        INTERNAL_CATCH_NTTP_REGISTER0)(TestFunc, __VA_ARGS__))
  #define INTERNAL_CATCH_DEFINE_SIG_TEST(TestName, ...)                     \
    INTERNAL_CATCH_EXPAND_VARGS(INTERNAL_CATCH_VA_NARGS_IMPL(               \
        "dummy", __VA_ARGS__, INTERNAL_CATCH_DEFINE_SIG_TEST_X,             \
        INTERNAL_CATCH_DEFINE_SIG_TEST_X, INTERNAL_CATCH_DEFINE_SIG_TEST_X, \
        INTERNAL_CATCH_DEFINE_SIG_TEST_X, INTERNAL_CATCH_DEFINE_SIG_TEST_X, \
        INTERNAL_CATCH_DEFINE_SIG_TEST_X, INTERNAL_CATCH_DEFINE_SIG_TEST_X, \
        INTERNAL_CATCH_DEFINE_SIG_TEST_X, INTERNAL_CATCH_DEFINE_SIG_TEST_X, \
        INTERNAL_CATCH_DEFINE_SIG_TEST1,                                    \
        INTERNAL_CATCH_DEFINE_SIG_TEST0)(TestName, __VA_ARGS__))
  #define INTERNAL_CATCH_DECLARE_SIG_TEST(TestName, ...)                      \
    INTERNAL_CATCH_EXPAND_VARGS(INTERNAL_CATCH_VA_NARGS_IMPL(                 \
        "dummy", __VA_ARGS__, INTERNAL_CATCH_DECLARE_SIG_TEST_X,              \
        INTERNAL_CATCH_DECLARE_SIG_TEST_X, INTERNAL_CATCH_DECLARE_SIG_TEST_X, \
        INTERNAL_CATCH_DECLARE_SIG_TEST_X, INTERNAL_CATCH_DECLARE_SIG_TEST_X, \
        INTERNAL_CATCH_DECLARE_SIG_TEST_X, INTERNAL_CATCH_DEFINE_SIG_TEST_X,  \
        INTERNAL_CATCH_DECLARE_SIG_TEST_X, INTERNAL_CATCH_DECLARE_SIG_TEST_X, \
        INTERNAL_CATCH_DECLARE_SIG_TEST1,                                     \
        INTERNAL_CATCH_DECLARE_SIG_TEST0)(TestName, __VA_ARGS__))
  #define INTERNAL_CATCH_REMOVE_PARENS_GEN(...)                                  \
    INTERNAL_CATCH_EXPAND_VARGS(INTERNAL_CATCH_VA_NARGS_IMPL(                    \
        __VA_ARGS__, INTERNAL_CATCH_REMOVE_PARENS_11_ARG,                        \
        INTERNAL_CATCH_REMOVE_PARENS_10_ARG, INTERNAL_CATCH_REMOVE_PARENS_9_ARG, \
        INTERNAL_CATCH_REMOVE_PARENS_8_ARG, INTERNAL_CATCH_REMOVE_PARENS_7_ARG,  \
        INTERNAL_CATCH_REMOVE_PARENS_6_ARG, INTERNAL_CATCH_REMOVE_PARENS_5_ARG,  \
        INTERNAL_CATCH_REMOVE_PARENS_4_ARG, INTERNAL_CATCH_REMOVE_PARENS_3_ARG,  \
        INTERNAL_CATCH_REMOVE_PARENS_2_ARG,                                      \
        INTERNAL_CATCH_REMOVE_PARENS_1_ARG)(__VA_ARGS__))
  #endif
  
  // end catch_preprocessor.hpp
  // start catch_meta.hpp
  
  #include <type_traits>
  
  namespace Catch
  {
  template<typename T>
  struct always_false : std::false_type
  {};
  
  template<typename>
  struct true_given : std::true_type
  {};
  struct is_callable_tester
  {
    template<typename Fun, typename... Args>
    true_given<
        decltype(std::declval<Fun>()(std::declval<Args>()...))> static test(int);
    template<typename...>
    std::false_type static test(...);
  };
  
  template<typename T>
  struct is_callable;
  
  template<typename Fun, typename... Args>
  struct is_callable<Fun(Args...)>
      : decltype(is_callable_tester::test<Fun, Args...>(0))
  {};
  
  #if defined(__cpp_lib_is_invocable) && __cpp_lib_is_invocable >= 201703
  // std::result_of is deprecated in C++17 and removed in C++20. Hence, it is
  // replaced with std::invoke_result here. Also *_t format is preferred over
  // typename *::type format.
  template<typename Func, typename U>
  using FunctionReturnType =
      std::remove_reference_t<std::remove_cv_t<std::invoke_result_t<Func, U>>>;
  #else
  template<typename Func, typename U>
  using FunctionReturnType =
      typename std::remove_reference<typename std::remove_cv<
          typename std::result_of<Func(U)>::type>::type>::type;
  #endif
  
  } // namespace Catch
  
  namespace mpl_
  {
  struct na;
  }
  
  // end catch_meta.hpp
  namespace Catch
  {
  template<typename C>
  class TestInvokerAsMethod : public ITestInvoker
  {
    void (C::*m_testAsMethod)();
  
  public:
    TestInvokerAsMethod(void (C::*testAsMethod)()) noexcept
        : m_testAsMethod(testAsMethod)
    {}
  
    void invoke() const override
    {
      C obj;
      (obj.*m_testAsMethod)();
    }
  };
  
  auto makeTestInvoker(void (*testAsFunction)()) noexcept -> ITestInvoker *;
  
  template<typename C>
  auto makeTestInvoker(void (C::*testAsMethod)()) noexcept -> ITestInvoker *
  {
    return new (std::nothrow) TestInvokerAsMethod<C>(testAsMethod);
  }
  
  struct NameAndTags
  {
    NameAndTags(StringRef const &name_ = StringRef(),
                StringRef const &tags_ = StringRef()) noexcept;
    StringRef name;
    StringRef tags;
  };
  
  struct AutoReg : NonCopyable
  {
    AutoReg(ITestInvoker *invoker, SourceLineInfo const &lineInfo,
            StringRef const &classOrMethod,
            NameAndTags const &nameAndTags) noexcept;
    ~AutoReg();
  };
  
  } // end namespace Catch
  
  #if defined(CATCH_CONFIG_DISABLE)
  #define INTERNAL_CATCH_TESTCASE_NO_REGISTRATION(TestName, ...) \
    static void TestName()
  #define INTERNAL_CATCH_TESTCASE_METHOD_NO_REGISTRATION(TestName, ClassName, \
                                                         ...)                 \
    namespace                                                                 \
    {                                                                         \
    struct TestName : INTERNAL_CATCH_REMOVE_PARENS(ClassName)                 \
    {                                                                         \
      void test();                                                            \
    };                                                                        \
    }                                                                         \
    void TestName::test()
  #define INTERNAL_CATCH_TEMPLATE_TEST_CASE_NO_REGISTRATION_2( \
      TestName, TestFunc, Name, Tags, Signature, ...)          \
    INTERNAL_CATCH_DEFINE_SIG_TEST(TestFunc,                   \
                                   INTERNAL_CATCH_REMOVE_PARENS(Signature))
  #define INTERNAL_CATCH_TEMPLATE_TEST_CASE_METHOD_NO_REGISTRATION_2(    \
      TestNameClass, TestName, ClassName, Name, Tags, Signature, ...)    \
    namespace                                                            \
    {                                                                    \
    namespace INTERNAL_CATCH_MAKE_NAMESPACE(TestName)                    \
    {                                                                    \
      INTERNAL_CATCH_DECLARE_SIG_TEST_METHOD(                            \
          TestName, ClassName, INTERNAL_CATCH_REMOVE_PARENS(Signature)); \
    }                                                                    \
    }                                                                    \
    INTERNAL_CATCH_DEFINE_SIG_TEST_METHOD(                               \
        TestName, INTERNAL_CATCH_REMOVE_PARENS(Signature))
  
  #ifndef CATCH_CONFIG_TRADITIONAL_MSVC_PREPROCESSOR
  #define INTERNAL_CATCH_TEMPLATE_TEST_CASE_NO_REGISTRATION(Name, Tags, ...) \
    INTERNAL_CATCH_TEMPLATE_TEST_CASE_NO_REGISTRATION_2(                     \
        INTERNAL_CATCH_UNIQUE_NAME(                                          \
            ____C_A_T_C_H____T_E_M_P_L_A_T_E____T_E_S_T____),                \
        INTERNAL_CATCH_UNIQUE_NAME(                                          \
            ____C_A_T_C_H____T_E_M_P_L_A_T_E____T_E_S_T____F_U_N_C____),     \
        Name, Tags, typename TestType, __VA_ARGS__)
  #else
  #define INTERNAL_CATCH_TEMPLATE_TEST_CASE_NO_REGISTRATION(Name, Tags, ...) \
    INTERNAL_CATCH_EXPAND_VARGS(                                             \
        INTERNAL_CATCH_TEMPLATE_TEST_CASE_NO_REGISTRATION_2(                 \
            INTERNAL_CATCH_UNIQUE_NAME(                                      \
                ____C_A_T_C_H____T_E_M_P_L_A_T_E____T_E_S_T____),            \
            INTERNAL_CATCH_UNIQUE_NAME(                                      \
                ____C_A_T_C_H____T_E_M_P_L_A_T_E____T_E_S_T____F_U_N_C____), \
            Name, Tags, typename TestType, __VA_ARGS__))
  #endif
  
  #ifndef CATCH_CONFIG_TRADITIONAL_MSVC_PREPROCESSOR
  #define INTERNAL_CATCH_TEMPLATE_TEST_CASE_SIG_NO_REGISTRATION(Name, Tags,     \
                                                                Signature, ...) \
    INTERNAL_CATCH_TEMPLATE_TEST_CASE_NO_REGISTRATION_2(                        \
        INTERNAL_CATCH_UNIQUE_NAME(                                             \
            ____C_A_T_C_H____T_E_M_P_L_A_T_E____T_E_S_T____),                   \
        INTERNAL_CATCH_UNIQUE_NAME(                                             \
            ____C_A_T_C_H____T_E_M_P_L_A_T_E____T_E_S_T____F_U_N_C____),        \
        Name, Tags, Signature, __VA_ARGS__)
  #else
  #define INTERNAL_CATCH_TEMPLATE_TEST_CASE_SIG_NO_REGISTRATION(Name, Tags,     \
                                                                Signature, ...) \
    INTERNAL_CATCH_EXPAND_VARGS(                                                \
        INTERNAL_CATCH_TEMPLATE_TEST_CASE_NO_REGISTRATION_2(                    \
            INTERNAL_CATCH_UNIQUE_NAME(                                         \
                ____C_A_T_C_H____T_E_M_P_L_A_T_E____T_E_S_T____),               \
            INTERNAL_CATCH_UNIQUE_NAME(                                         \
                ____C_A_T_C_H____T_E_M_P_L_A_T_E____T_E_S_T____F_U_N_C____),    \
            Name, Tags, Signature, __VA_ARGS__))
  #endif
  
  #ifndef CATCH_CONFIG_TRADITIONAL_MSVC_PREPROCESSOR
  #define INTERNAL_CATCH_TEMPLATE_TEST_CASE_METHOD_NO_REGISTRATION(        \
      ClassName, Name, Tags, ...)                                          \
    INTERNAL_CATCH_TEMPLATE_TEST_CASE_METHOD_NO_REGISTRATION_2(            \
        INTERNAL_CATCH_UNIQUE_NAME(                                        \
            ____C_A_T_C_H____T_E_M_P_L_A_T_E____T_E_S_T____C_L_A_S_S____), \
        INTERNAL_CATCH_UNIQUE_NAME(                                        \
            ____C_A_T_C_H____T_E_M_P_L_A_T_E____T_E_S_T____),              \
        ClassName, Name, Tags, typename T, __VA_ARGS__)
  #else
  #define INTERNAL_CATCH_TEMPLATE_TEST_CASE_METHOD_NO_REGISTRATION(            \
      ClassName, Name, Tags, ...)                                              \
    INTERNAL_CATCH_EXPAND_VARGS(                                               \
        INTERNAL_CATCH_TEMPLATE_TEST_CASE_METHOD_NO_REGISTRATION_2(            \
            INTERNAL_CATCH_UNIQUE_NAME(                                        \
                ____C_A_T_C_H____T_E_M_P_L_A_T_E____T_E_S_T____C_L_A_S_S____), \
            INTERNAL_CATCH_UNIQUE_NAME(                                        \
                ____C_A_T_C_H____T_E_M_P_L_A_T_E____T_E_S_T____),              \
            ClassName, Name, Tags, typename T, __VA_ARGS__))
  #endif
  
  #ifndef CATCH_CONFIG_TRADITIONAL_MSVC_PREPROCESSOR
  #define INTERNAL_CATCH_TEMPLATE_TEST_CASE_METHOD_SIG_NO_REGISTRATION(    \
      ClassName, Name, Tags, Signature, ...)                               \
    INTERNAL_CATCH_TEMPLATE_TEST_CASE_METHOD_NO_REGISTRATION_2(            \
        INTERNAL_CATCH_UNIQUE_NAME(                                        \
            ____C_A_T_C_H____T_E_M_P_L_A_T_E____T_E_S_T____C_L_A_S_S____), \
        INTERNAL_CATCH_UNIQUE_NAME(                                        \
            ____C_A_T_C_H____T_E_M_P_L_A_T_E____T_E_S_T____),              \
        ClassName, Name, Tags, Signature, __VA_ARGS__)
  #else
  #define INTERNAL_CATCH_TEMPLATE_TEST_CASE_METHOD_SIG_NO_REGISTRATION(        \
      ClassName, Name, Tags, Signature, ...)                                   \
    INTERNAL_CATCH_EXPAND_VARGS(                                               \
        INTERNAL_CATCH_TEMPLATE_TEST_CASE_METHOD_NO_REGISTRATION_2(            \
            INTERNAL_CATCH_UNIQUE_NAME(                                        \
                ____C_A_T_C_H____T_E_M_P_L_A_T_E____T_E_S_T____C_L_A_S_S____), \
            INTERNAL_CATCH_UNIQUE_NAME(                                        \
                ____C_A_T_C_H____T_E_M_P_L_A_T_E____T_E_S_T____),              \
            ClassName, Name, Tags, Signature, __VA_ARGS__))
  #endif
  #endif
  
  ///////////////////////////////////////////////////////////////////////////////
  #define INTERNAL_CATCH_TESTCASE2(TestName, ...)                   \
    static void TestName();                                         \
    CATCH_INTERNAL_START_WARNINGS_SUPPRESSION                       \
    CATCH_INTERNAL_SUPPRESS_GLOBALS_WARNINGS                        \
    namespace                                                       \
    {                                                               \
    Catch::AutoReg INTERNAL_CATCH_UNIQUE_NAME(autoRegistrar)(       \
        Catch::makeTestInvoker(&TestName), CATCH_INTERNAL_LINEINFO, \
        Catch::StringRef(), Catch::NameAndTags{__VA_ARGS__});       \
    } /* NOLINT */                                                  \
    CATCH_INTERNAL_STOP_WARNINGS_SUPPRESSION                        \
    static void TestName()
  #define INTERNAL_CATCH_TESTCASE(...) \
    INTERNAL_CATCH_TESTCASE2(          \
        INTERNAL_CATCH_UNIQUE_NAME(____C_A_T_C_H____T_E_S_T____), __VA_ARGS__)
  
  ///////////////////////////////////////////////////////////////////////////////
  #define INTERNAL_CATCH_METHOD_AS_TEST_CASE(QualifiedMethod, ...)         \
    CATCH_INTERNAL_START_WARNINGS_SUPPRESSION                              \
    CATCH_INTERNAL_SUPPRESS_GLOBALS_WARNINGS                               \
    namespace                                                              \
    {                                                                      \
    Catch::AutoReg INTERNAL_CATCH_UNIQUE_NAME(autoRegistrar)(              \
        Catch::makeTestInvoker(&QualifiedMethod), CATCH_INTERNAL_LINEINFO, \
        "&" #QualifiedMethod, Catch::NameAndTags{__VA_ARGS__});            \
    } /* NOLINT */                                                         \
    CATCH_INTERNAL_STOP_WARNINGS_SUPPRESSION
  
  ///////////////////////////////////////////////////////////////////////////////
  #define INTERNAL_CATCH_TEST_CASE_METHOD2(TestName, ClassName, ...)      \
    CATCH_INTERNAL_START_WARNINGS_SUPPRESSION                             \
    CATCH_INTERNAL_SUPPRESS_GLOBALS_WARNINGS                              \
    namespace                                                             \
    {                                                                     \
    struct TestName : INTERNAL_CATCH_REMOVE_PARENS(ClassName)             \
    {                                                                     \
      void test();                                                        \
    };                                                                    \
    Catch::AutoReg INTERNAL_CATCH_UNIQUE_NAME(autoRegistrar)(             \
        Catch::makeTestInvoker(&TestName::test), CATCH_INTERNAL_LINEINFO, \
        #ClassName, Catch::NameAndTags{__VA_ARGS__}); /* NOLINT */        \
    }                                                                     \
    CATCH_INTERNAL_STOP_WARNINGS_SUPPRESSION                              \
    void TestName::test()
  #define INTERNAL_CATCH_TEST_CASE_METHOD(ClassName, ...)                    \
    INTERNAL_CATCH_TEST_CASE_METHOD2(                                        \
        INTERNAL_CATCH_UNIQUE_NAME(____C_A_T_C_H____T_E_S_T____), ClassName, \
        __VA_ARGS__)
  
  ///////////////////////////////////////////////////////////////////////////////
  #define INTERNAL_CATCH_REGISTER_TESTCASE(Function, ...)                  \
    CATCH_INTERNAL_START_WARNINGS_SUPPRESSION                              \
    CATCH_INTERNAL_SUPPRESS_GLOBALS_WARNINGS                               \
    Catch::AutoReg INTERNAL_CATCH_UNIQUE_NAME(autoRegistrar)(              \
        Catch::makeTestInvoker(Function), CATCH_INTERNAL_LINEINFO,         \
        Catch::StringRef(), Catch::NameAndTags{__VA_ARGS__}); /* NOLINT */ \
    CATCH_INTERNAL_STOP_WARNINGS_SUPPRESSION
  
  ///////////////////////////////////////////////////////////////////////////////
  #define INTERNAL_CATCH_TEMPLATE_TEST_CASE_2(TestName, TestFunc, Name, Tags,    \
                                              Signature, ...)                    \
    CATCH_INTERNAL_START_WARNINGS_SUPPRESSION                                    \
    CATCH_INTERNAL_SUPPRESS_GLOBALS_WARNINGS                                     \
    CATCH_INTERNAL_SUPPRESS_ZERO_VARIADIC_WARNINGS                               \
    CATCH_INTERNAL_SUPPRESS_UNUSED_TEMPLATE_WARNINGS                             \
    INTERNAL_CATCH_DECLARE_SIG_TEST(TestFunc,                                    \
                                    INTERNAL_CATCH_REMOVE_PARENS(Signature));    \
    namespace                                                                    \
    {                                                                            \
    namespace INTERNAL_CATCH_MAKE_NAMESPACE(TestName)                            \
    {                                                                            \
      INTERNAL_CATCH_TYPE_GEN                                                    \
      INTERNAL_CATCH_NTTP_GEN(INTERNAL_CATCH_REMOVE_PARENS(Signature))           \
      INTERNAL_CATCH_NTTP_REG_GEN(TestFunc,                                      \
                                  INTERNAL_CATCH_REMOVE_PARENS(Signature))       \
      template<typename... Types>                                                \
      struct TestName                                                            \
      {                                                                          \
        TestName()                                                               \
        {                                                                        \
          int index                          = 0;                                \
          constexpr char const *tmpl_types[] = {CATCH_REC_LIST(                  \
              INTERNAL_CATCH_STRINGIZE_WITHOUT_PARENS, __VA_ARGS__)};            \
          using expander                     = int[];                            \
          (void)expander{                                                        \
              (reg_test(Types{},                                                 \
                        Catch::NameAndTags{                                      \
                            Name " - " + std::string(tmpl_types[index]), Tags}), \
               index++, 0)...}; /* NOLINT */                                     \
        }                                                                        \
      };                                                                         \
      static int INTERNAL_CATCH_UNIQUE_NAME(globalRegistrar) = []() {            \
        TestName<INTERNAL_CATCH_MAKE_TYPE_LISTS_FROM_TYPES(__VA_ARGS__)>();      \
        return 0;                                                                \
      }();                                                                       \
    }                                                                            \
    }                                                                            \
    CATCH_INTERNAL_STOP_WARNINGS_SUPPRESSION                                     \
    INTERNAL_CATCH_DEFINE_SIG_TEST(TestFunc,                                     \
                                   INTERNAL_CATCH_REMOVE_PARENS(Signature))
  
  #ifndef CATCH_CONFIG_TRADITIONAL_MSVC_PREPROCESSOR
  #define INTERNAL_CATCH_TEMPLATE_TEST_CASE(Name, Tags, ...)             \
    INTERNAL_CATCH_TEMPLATE_TEST_CASE_2(                                 \
        INTERNAL_CATCH_UNIQUE_NAME(                                      \
            ____C_A_T_C_H____T_E_M_P_L_A_T_E____T_E_S_T____),            \
        INTERNAL_CATCH_UNIQUE_NAME(                                      \
            ____C_A_T_C_H____T_E_M_P_L_A_T_E____T_E_S_T____F_U_N_C____), \
        Name, Tags, typename TestType, __VA_ARGS__)
  #else
  #define INTERNAL_CATCH_TEMPLATE_TEST_CASE(Name, Tags, ...)             \
    INTERNAL_CATCH_EXPAND_VARGS(INTERNAL_CATCH_TEMPLATE_TEST_CASE_2(     \
        INTERNAL_CATCH_UNIQUE_NAME(                                      \
            ____C_A_T_C_H____T_E_M_P_L_A_T_E____T_E_S_T____),            \
        INTERNAL_CATCH_UNIQUE_NAME(                                      \
            ____C_A_T_C_H____T_E_M_P_L_A_T_E____T_E_S_T____F_U_N_C____), \
        Name, Tags, typename TestType, __VA_ARGS__))
  #endif
  
  #ifndef CATCH_CONFIG_TRADITIONAL_MSVC_PREPROCESSOR
  #define INTERNAL_CATCH_TEMPLATE_TEST_CASE_SIG(Name, Tags, Signature, ...) \
    INTERNAL_CATCH_TEMPLATE_TEST_CASE_2(                                    \
        INTERNAL_CATCH_UNIQUE_NAME(                                         \
            ____C_A_T_C_H____T_E_M_P_L_A_T_E____T_E_S_T____),               \
        INTERNAL_CATCH_UNIQUE_NAME(                                         \
            ____C_A_T_C_H____T_E_M_P_L_A_T_E____T_E_S_T____F_U_N_C____),    \
        Name, Tags, Signature, __VA_ARGS__)
  #else
  #define INTERNAL_CATCH_TEMPLATE_TEST_CASE_SIG(Name, Tags, Signature, ...) \
    INTERNAL_CATCH_EXPAND_VARGS(INTERNAL_CATCH_TEMPLATE_TEST_CASE_2(        \
        INTERNAL_CATCH_UNIQUE_NAME(                                         \
            ____C_A_T_C_H____T_E_M_P_L_A_T_E____T_E_S_T____),               \
        INTERNAL_CATCH_UNIQUE_NAME(                                         \
            ____C_A_T_C_H____T_E_M_P_L_A_T_E____T_E_S_T____F_U_N_C____),    \
        Name, Tags, Signature, __VA_ARGS__))
  #endif
  
  #define INTERNAL_CATCH_TEMPLATE_PRODUCT_TEST_CASE2(                            \
      TestName, TestFuncName, Name, Tags, Signature, TmplTypes, TypesList)       \
    CATCH_INTERNAL_START_WARNINGS_SUPPRESSION                                    \
    CATCH_INTERNAL_SUPPRESS_GLOBALS_WARNINGS                                     \
    CATCH_INTERNAL_SUPPRESS_ZERO_VARIADIC_WARNINGS                               \
    CATCH_INTERNAL_SUPPRESS_UNUSED_TEMPLATE_WARNINGS                             \
    template<typename TestType>                                                  \
    static void TestFuncName();                                                  \
    namespace                                                                    \
    {                                                                            \
    namespace INTERNAL_CATCH_MAKE_NAMESPACE(TestName)                            \
    {                                                                            \
      INTERNAL_CATCH_TYPE_GEN                                                    \
      INTERNAL_CATCH_NTTP_GEN(INTERNAL_CATCH_REMOVE_PARENS(Signature))           \
      template<typename... Types>                                                \
      struct TestName                                                            \
      {                                                                          \
        void reg_tests()                                                         \
        {                                                                        \
          int index                          = 0;                                \
          using expander                     = int[];                            \
          constexpr char const *tmpl_types[] = {                                 \
              CATCH_REC_LIST(INTERNAL_CATCH_STRINGIZE_WITHOUT_PARENS,            \
                             INTERNAL_CATCH_REMOVE_PARENS(TmplTypes))};          \
          constexpr char const *types_list[] = {                                 \
              CATCH_REC_LIST(INTERNAL_CATCH_STRINGIZE_WITHOUT_PARENS,            \
                             INTERNAL_CATCH_REMOVE_PARENS(TypesList))};          \
          constexpr auto num_types = sizeof(types_list) / sizeof(types_list[0]); \
          (void)expander{                                                        \
              (Catch::AutoReg(                                                   \
                   Catch::makeTestInvoker(&TestFuncName<Types>),                 \
                   CATCH_INTERNAL_LINEINFO, Catch::StringRef(),                  \
                   Catch::NameAndTags{                                           \
                       Name " - " + std::string(tmpl_types[index / num_types]) + \
                           "<" + std::string(types_list[index % num_types]) +    \
                           ">",                                                  \
                       Tags}),                                                   \
               index++, 0)...}; /* NOLINT */                                     \
        }                                                                        \
      };                                                                         \
      static int INTERNAL_CATCH_UNIQUE_NAME(globalRegistrar) = []() {            \
        using TestInit = typename create<                                        \
            TestName,                                                            \
            decltype(get_wrapper<INTERNAL_CATCH_REMOVE_PARENS(TmplTypes)>()),    \
            TypeList<INTERNAL_CATCH_MAKE_TYPE_LISTS_FROM_TYPES(                  \
                INTERNAL_CATCH_REMOVE_PARENS(TypesList))>>::type;                \
        TestInit t;                                                              \
        t.reg_tests();                                                           \
        return 0;                                                                \
      }();                                                                       \
    }                                                                            \
    }                                                                            \
    CATCH_INTERNAL_STOP_WARNINGS_SUPPRESSION                                     \
    template<typename TestType>                                                  \
    static void TestFuncName()
  
  #ifndef CATCH_CONFIG_TRADITIONAL_MSVC_PREPROCESSOR
  #define INTERNAL_CATCH_TEMPLATE_PRODUCT_TEST_CASE(Name, Tags, ...)     \
    INTERNAL_CATCH_TEMPLATE_PRODUCT_TEST_CASE2(                          \
        INTERNAL_CATCH_UNIQUE_NAME(                                      \
            ____C_A_T_C_H____T_E_M_P_L_A_T_E____T_E_S_T____),            \
        INTERNAL_CATCH_UNIQUE_NAME(                                      \
            ____C_A_T_C_H____T_E_M_P_L_A_T_E____T_E_S_T____F_U_N_C____), \
        Name, Tags, typename T, __VA_ARGS__)
  #else
  #define INTERNAL_CATCH_TEMPLATE_PRODUCT_TEST_CASE(Name, Tags, ...)        \
    INTERNAL_CATCH_EXPAND_VARGS(INTERNAL_CATCH_TEMPLATE_PRODUCT_TEST_CASE2( \
        INTERNAL_CATCH_UNIQUE_NAME(                                         \
            ____C_A_T_C_H____T_E_M_P_L_A_T_E____T_E_S_T____),               \
        INTERNAL_CATCH_UNIQUE_NAME(                                         \
            ____C_A_T_C_H____T_E_M_P_L_A_T_E____T_E_S_T____F_U_N_C____),    \
        Name, Tags, typename T, __VA_ARGS__))
  #endif
  
  #ifndef CATCH_CONFIG_TRADITIONAL_MSVC_PREPROCESSOR
  #define INTERNAL_CATCH_TEMPLATE_PRODUCT_TEST_CASE_SIG(Name, Tags, Signature, \
                                                        ...)                   \
    INTERNAL_CATCH_TEMPLATE_PRODUCT_TEST_CASE2(                                \
        INTERNAL_CATCH_UNIQUE_NAME(                                            \
            ____C_A_T_C_H____T_E_M_P_L_A_T_E____T_E_S_T____),                  \
        INTERNAL_CATCH_UNIQUE_NAME(                                            \
            ____C_A_T_C_H____T_E_M_P_L_A_T_E____T_E_S_T____F_U_N_C____),       \
        Name, Tags, Signature, __VA_ARGS__)
  #else
  #define INTERNAL_CATCH_TEMPLATE_PRODUCT_TEST_CASE_SIG(Name, Tags, Signature, \
                                                        ...)                   \
    INTERNAL_CATCH_EXPAND_VARGS(INTERNAL_CATCH_TEMPLATE_PRODUCT_TEST_CASE2(    \
        INTERNAL_CATCH_UNIQUE_NAME(                                            \
            ____C_A_T_C_H____T_E_M_P_L_A_T_E____T_E_S_T____),                  \
        INTERNAL_CATCH_UNIQUE_NAME(                                            \
            ____C_A_T_C_H____T_E_M_P_L_A_T_E____T_E_S_T____F_U_N_C____),       \
        Name, Tags, Signature, __VA_ARGS__))
  #endif
  
  #define INTERNAL_CATCH_TEMPLATE_LIST_TEST_CASE_2(TestName, TestFunc, Name, \
                                                   Tags, TmplList)           \
    CATCH_INTERNAL_START_WARNINGS_SUPPRESSION                                \
    CATCH_INTERNAL_SUPPRESS_GLOBALS_WARNINGS                                 \
    CATCH_INTERNAL_SUPPRESS_UNUSED_TEMPLATE_WARNINGS                         \
    template<typename TestType>                                              \
    static void TestFunc();                                                  \
    namespace                                                                \
    {                                                                        \
    namespace INTERNAL_CATCH_MAKE_NAMESPACE(TestName)                        \
    {                                                                        \
      INTERNAL_CATCH_TYPE_GEN                                                \
      template<typename... Types>                                            \
      struct TestName                                                        \
      {                                                                      \
        void reg_tests()                                                     \
        {                                                                    \
          int index      = 0;                                                \
          using expander = int[];                                            \
          (void)expander{                                                    \
              (Catch::AutoReg(                                               \
                   Catch::makeTestInvoker(&TestFunc<Types>),                 \
                   CATCH_INTERNAL_LINEINFO, Catch::StringRef(),              \
                   Catch::NameAndTags{                                       \
                       Name " - " +                                          \
                           std::string(INTERNAL_CATCH_STRINGIZE(TmplList)) + \
                           " - " + std::to_string(index),                    \
                       Tags}),                                               \
               index++, 0)...}; /* NOLINT */                                 \
        }                                                                    \
      };                                                                     \
      static int INTERNAL_CATCH_UNIQUE_NAME(globalRegistrar) = []() {        \
        using TestInit = typename convert<TestName, TmplList>::type;         \
        TestInit t;                                                          \
        t.reg_tests();                                                       \
        return 0;                                                            \
      }();                                                                   \
    }                                                                        \
    }                                                                        \
    CATCH_INTERNAL_STOP_WARNINGS_SUPPRESSION                                 \
    template<typename TestType>                                              \
    static void TestFunc()
  
  #define INTERNAL_CATCH_TEMPLATE_LIST_TEST_CASE(Name, Tags, TmplList)   \
    INTERNAL_CATCH_TEMPLATE_LIST_TEST_CASE_2(                            \
        INTERNAL_CATCH_UNIQUE_NAME(                                      \
            ____C_A_T_C_H____T_E_M_P_L_A_T_E____T_E_S_T____),            \
        INTERNAL_CATCH_UNIQUE_NAME(                                      \
            ____C_A_T_C_H____T_E_M_P_L_A_T_E____T_E_S_T____F_U_N_C____), \
        Name, Tags, TmplList)
  
  #define INTERNAL_CATCH_TEMPLATE_TEST_CASE_METHOD_2(                            \
      TestNameClass, TestName, ClassName, Name, Tags, Signature, ...)            \
    CATCH_INTERNAL_START_WARNINGS_SUPPRESSION                                    \
    CATCH_INTERNAL_SUPPRESS_GLOBALS_WARNINGS                                     \
    CATCH_INTERNAL_SUPPRESS_ZERO_VARIADIC_WARNINGS                               \
    CATCH_INTERNAL_SUPPRESS_UNUSED_TEMPLATE_WARNINGS                             \
    namespace                                                                    \
    {                                                                            \
    namespace INTERNAL_CATCH_MAKE_NAMESPACE(TestName)                            \
    {                                                                            \
      INTERNAL_CATCH_TYPE_GEN                                                    \
      INTERNAL_CATCH_NTTP_GEN(INTERNAL_CATCH_REMOVE_PARENS(Signature))           \
      INTERNAL_CATCH_DECLARE_SIG_TEST_METHOD(                                    \
          TestName, ClassName, INTERNAL_CATCH_REMOVE_PARENS(Signature));         \
      INTERNAL_CATCH_NTTP_REG_METHOD_GEN(                                        \
          TestName, INTERNAL_CATCH_REMOVE_PARENS(Signature))                     \
      template<typename... Types>                                                \
      struct TestNameClass                                                       \
      {                                                                          \
        TestNameClass()                                                          \
        {                                                                        \
          int index                          = 0;                                \
          constexpr char const *tmpl_types[] = {CATCH_REC_LIST(                  \
              INTERNAL_CATCH_STRINGIZE_WITHOUT_PARENS, __VA_ARGS__)};            \
          using expander                     = int[];                            \
          (void)expander{                                                        \
              (reg_test(Types{}, #ClassName,                                     \
                        Catch::NameAndTags{                                      \
                            Name " - " + std::string(tmpl_types[index]), Tags}), \
               index++, 0)...}; /* NOLINT */                                     \
        }                                                                        \
      };                                                                         \
      static int INTERNAL_CATCH_UNIQUE_NAME(globalRegistrar) = []() {            \
        TestNameClass<INTERNAL_CATCH_MAKE_TYPE_LISTS_FROM_TYPES(__VA_ARGS__)>(); \
        return 0;                                                                \
      }();                                                                       \
    }                                                                            \
    }                                                                            \
    CATCH_INTERNAL_STOP_WARNINGS_SUPPRESSION                                     \
    INTERNAL_CATCH_DEFINE_SIG_TEST_METHOD(                                       \
        TestName, INTERNAL_CATCH_REMOVE_PARENS(Signature))
  
  #ifndef CATCH_CONFIG_TRADITIONAL_MSVC_PREPROCESSOR
  #define INTERNAL_CATCH_TEMPLATE_TEST_CASE_METHOD(ClassName, Name, Tags, ...) \
    INTERNAL_CATCH_TEMPLATE_TEST_CASE_METHOD_2(                                \
        INTERNAL_CATCH_UNIQUE_NAME(                                            \
            ____C_A_T_C_H____T_E_M_P_L_A_T_E____T_E_S_T____C_L_A_S_S____),     \
        INTERNAL_CATCH_UNIQUE_NAME(                                            \
            ____C_A_T_C_H____T_E_M_P_L_A_T_E____T_E_S_T____),                  \
        ClassName, Name, Tags, typename T, __VA_ARGS__)
  #else
  #define INTERNAL_CATCH_TEMPLATE_TEST_CASE_METHOD(ClassName, Name, Tags, ...) \
    INTERNAL_CATCH_EXPAND_VARGS(INTERNAL_CATCH_TEMPLATE_TEST_CASE_METHOD_2(    \
        INTERNAL_CATCH_UNIQUE_NAME(                                            \
            ____C_A_T_C_H____T_E_M_P_L_A_T_E____T_E_S_T____C_L_A_S_S____),     \
        INTERNAL_CATCH_UNIQUE_NAME(                                            \
            ____C_A_T_C_H____T_E_M_P_L_A_T_E____T_E_S_T____),                  \
        ClassName, Name, Tags, typename T, __VA_ARGS__))
  #endif
  
  #ifndef CATCH_CONFIG_TRADITIONAL_MSVC_PREPROCESSOR
  #define INTERNAL_CATCH_TEMPLATE_TEST_CASE_METHOD_SIG(ClassName, Name, Tags, \
                                                       Signature, ...)        \
    INTERNAL_CATCH_TEMPLATE_TEST_CASE_METHOD_2(                               \
        INTERNAL_CATCH_UNIQUE_NAME(                                           \
            ____C_A_T_C_H____T_E_M_P_L_A_T_E____T_E_S_T____C_L_A_S_S____),    \
        INTERNAL_CATCH_UNIQUE_NAME(                                           \
            ____C_A_T_C_H____T_E_M_P_L_A_T_E____T_E_S_T____),                 \
        ClassName, Name, Tags, Signature, __VA_ARGS__)
  #else
  #define INTERNAL_CATCH_TEMPLATE_TEST_CASE_METHOD_SIG(ClassName, Name, Tags, \
                                                       Signature, ...)        \
    INTERNAL_CATCH_EXPAND_VARGS(INTERNAL_CATCH_TEMPLATE_TEST_CASE_METHOD_2(   \
        INTERNAL_CATCH_UNIQUE_NAME(                                           \
            ____C_A_T_C_H____T_E_M_P_L_A_T_E____T_E_S_T____C_L_A_S_S____),    \
        INTERNAL_CATCH_UNIQUE_NAME(                                           \
            ____C_A_T_C_H____T_E_M_P_L_A_T_E____T_E_S_T____),                 \
        ClassName, Name, Tags, Signature, __VA_ARGS__))
  #endif
  
  #define INTERNAL_CATCH_TEMPLATE_PRODUCT_TEST_CASE_METHOD_2(                    \
      TestNameClass, TestName, ClassName, Name, Tags, Signature, TmplTypes,      \
      TypesList)                                                                 \
    CATCH_INTERNAL_START_WARNINGS_SUPPRESSION                                    \
    CATCH_INTERNAL_SUPPRESS_GLOBALS_WARNINGS                                     \
    CATCH_INTERNAL_SUPPRESS_ZERO_VARIADIC_WARNINGS                               \
    CATCH_INTERNAL_SUPPRESS_UNUSED_TEMPLATE_WARNINGS                             \
    template<typename TestType>                                                  \
    struct TestName : INTERNAL_CATCH_REMOVE_PARENS(ClassName<TestType>)          \
    {                                                                            \
      void test();                                                               \
    };                                                                           \
    namespace                                                                    \
    {                                                                            \
    namespace INTERNAL_CATCH_MAKE_NAMESPACE(TestNameClass)                       \
    {                                                                            \
      INTERNAL_CATCH_TYPE_GEN                                                    \
      INTERNAL_CATCH_NTTP_GEN(INTERNAL_CATCH_REMOVE_PARENS(Signature))           \
      template<typename... Types>                                                \
      struct TestNameClass                                                       \
      {                                                                          \
        void reg_tests()                                                         \
        {                                                                        \
          int index                          = 0;                                \
          using expander                     = int[];                            \
          constexpr char const *tmpl_types[] = {                                 \
              CATCH_REC_LIST(INTERNAL_CATCH_STRINGIZE_WITHOUT_PARENS,            \
                             INTERNAL_CATCH_REMOVE_PARENS(TmplTypes))};          \
          constexpr char const *types_list[] = {                                 \
              CATCH_REC_LIST(INTERNAL_CATCH_STRINGIZE_WITHOUT_PARENS,            \
                             INTERNAL_CATCH_REMOVE_PARENS(TypesList))};          \
          constexpr auto num_types = sizeof(types_list) / sizeof(types_list[0]); \
          (void)expander{                                                        \
              (Catch::AutoReg(                                                   \
                   Catch::makeTestInvoker(&TestName<Types>::test),               \
                   CATCH_INTERNAL_LINEINFO, #ClassName,                          \
                   Catch::NameAndTags{                                           \
                       Name " - " + std::string(tmpl_types[index / num_types]) + \
                           "<" + std::string(types_list[index % num_types]) +    \
                           ">",                                                  \
                       Tags}),                                                   \
               index++, 0)...}; /* NOLINT */                                     \
        }                                                                        \
      };                                                                         \
      static int INTERNAL_CATCH_UNIQUE_NAME(globalRegistrar) = []() {            \
        using TestInit = typename create<                                        \
            TestNameClass,                                                       \
            decltype(get_wrapper<INTERNAL_CATCH_REMOVE_PARENS(TmplTypes)>()),    \
            TypeList<INTERNAL_CATCH_MAKE_TYPE_LISTS_FROM_TYPES(                  \
                INTERNAL_CATCH_REMOVE_PARENS(TypesList))>>::type;                \
        TestInit t;                                                              \
        t.reg_tests();                                                           \
        return 0;                                                                \
      }();                                                                       \
    }                                                                            \
    }                                                                            \
    CATCH_INTERNAL_STOP_WARNINGS_SUPPRESSION                                     \
    template<typename TestType>                                                  \
    void TestName<TestType>::test()
  
  #ifndef CATCH_CONFIG_TRADITIONAL_MSVC_PREPROCESSOR
  #define INTERNAL_CATCH_TEMPLATE_PRODUCT_TEST_CASE_METHOD(ClassName, Name, \
                                                           Tags, ...)       \
    INTERNAL_CATCH_TEMPLATE_PRODUCT_TEST_CASE_METHOD_2(                     \
        INTERNAL_CATCH_UNIQUE_NAME(                                         \
            ____C_A_T_C_H____T_E_M_P_L_A_T_E____T_E_S_T____),               \
        INTERNAL_CATCH_UNIQUE_NAME(                                         \
            ____C_A_T_C_H____T_E_M_P_L_A_T_E____T_E_S_T____F_U_N_C____),    \
        ClassName, Name, Tags, typename T, __VA_ARGS__)
  #else
  #define INTERNAL_CATCH_TEMPLATE_PRODUCT_TEST_CASE_METHOD(ClassName, Name,  \
                                                           Tags, ...)        \
    INTERNAL_CATCH_EXPAND_VARGS(                                             \
        INTERNAL_CATCH_TEMPLATE_PRODUCT_TEST_CASE_METHOD_2(                  \
            INTERNAL_CATCH_UNIQUE_NAME(                                      \
                ____C_A_T_C_H____T_E_M_P_L_A_T_E____T_E_S_T____),            \
            INTERNAL_CATCH_UNIQUE_NAME(                                      \
                ____C_A_T_C_H____T_E_M_P_L_A_T_E____T_E_S_T____F_U_N_C____), \
            ClassName, Name, Tags, typename T, __VA_ARGS__))
  #endif
  
  #ifndef CATCH_CONFIG_TRADITIONAL_MSVC_PREPROCESSOR
  #define INTERNAL_CATCH_TEMPLATE_PRODUCT_TEST_CASE_METHOD_SIG(          \
      ClassName, Name, Tags, Signature, ...)                             \
    INTERNAL_CATCH_TEMPLATE_PRODUCT_TEST_CASE_METHOD_2(                  \
        INTERNAL_CATCH_UNIQUE_NAME(                                      \
            ____C_A_T_C_H____T_E_M_P_L_A_T_E____T_E_S_T____),            \
        INTERNAL_CATCH_UNIQUE_NAME(                                      \
            ____C_A_T_C_H____T_E_M_P_L_A_T_E____T_E_S_T____F_U_N_C____), \
        ClassName, Name, Tags, Signature, __VA_ARGS__)
  #else
  #define INTERNAL_CATCH_TEMPLATE_PRODUCT_TEST_CASE_METHOD_SIG(              \
      ClassName, Name, Tags, Signature, ...)                                 \
    INTERNAL_CATCH_EXPAND_VARGS(                                             \
        INTERNAL_CATCH_TEMPLATE_PRODUCT_TEST_CASE_METHOD_2(                  \
            INTERNAL_CATCH_UNIQUE_NAME(                                      \
                ____C_A_T_C_H____T_E_M_P_L_A_T_E____T_E_S_T____),            \
            INTERNAL_CATCH_UNIQUE_NAME(                                      \
                ____C_A_T_C_H____T_E_M_P_L_A_T_E____T_E_S_T____F_U_N_C____), \
            ClassName, Name, Tags, Signature, __VA_ARGS__))
  #endif
  
  #define INTERNAL_CATCH_TEMPLATE_LIST_TEST_CASE_METHOD_2(                   \
      TestNameClass, TestName, ClassName, Name, Tags, TmplList)              \
    CATCH_INTERNAL_START_WARNINGS_SUPPRESSION                                \
    CATCH_INTERNAL_SUPPRESS_GLOBALS_WARNINGS                                 \
    CATCH_INTERNAL_SUPPRESS_UNUSED_TEMPLATE_WARNINGS                         \
    template<typename TestType>                                              \
    struct TestName : INTERNAL_CATCH_REMOVE_PARENS(ClassName<TestType>)      \
    {                                                                        \
      void test();                                                           \
    };                                                                       \
    namespace                                                                \
    {                                                                        \
    namespace INTERNAL_CATCH_MAKE_NAMESPACE(TestName)                        \
    {                                                                        \
      INTERNAL_CATCH_TYPE_GEN                                                \
      template<typename... Types>                                            \
      struct TestNameClass                                                   \
      {                                                                      \
        void reg_tests()                                                     \
        {                                                                    \
          int index      = 0;                                                \
          using expander = int[];                                            \
          (void)expander{                                                    \
              (Catch::AutoReg(                                               \
                   Catch::makeTestInvoker(&TestName<Types>::test),           \
                   CATCH_INTERNAL_LINEINFO, #ClassName,                      \
                   Catch::NameAndTags{                                       \
                       Name " - " +                                          \
                           std::string(INTERNAL_CATCH_STRINGIZE(TmplList)) + \
                           " - " + std::to_string(index),                    \
                       Tags}),                                               \
               index++, 0)...}; /* NOLINT */                                 \
        }                                                                    \
      };                                                                     \
      static int INTERNAL_CATCH_UNIQUE_NAME(globalRegistrar) = []() {        \
        using TestInit = typename convert<TestNameClass, TmplList>::type;    \
        TestInit t;                                                          \
        t.reg_tests();                                                       \
        return 0;                                                            \
      }();                                                                   \
    }                                                                        \
    }                                                                        \
    CATCH_INTERNAL_STOP_WARNINGS_SUPPRESSION                                 \
    template<typename TestType>                                              \
    void TestName<TestType>::test()
  
  #define INTERNAL_CATCH_TEMPLATE_LIST_TEST_CASE_METHOD(ClassName, Name, Tags, \
                                                        TmplList)              \
    INTERNAL_CATCH_TEMPLATE_LIST_TEST_CASE_METHOD_2(                           \
        INTERNAL_CATCH_UNIQUE_NAME(                                            \
            ____C_A_T_C_H____T_E_M_P_L_A_T_E____T_E_S_T____),                  \
        INTERNAL_CATCH_UNIQUE_NAME(                                            \
            ____C_A_T_C_H____T_E_M_P_L_A_T_E____T_E_S_T____F_U_N_C____),       \
        ClassName, Name, Tags, TmplList)
  
  // end catch_test_registry.h
  // start catch_capture.hpp
  
  // start catch_assertionhandler.h
  
  // start catch_assertioninfo.h
  
  // start catch_result_type.h
  
  namespace Catch
  {
  // ResultWas::OfType enum
  struct ResultWas
  {
    enum OfType
    {
      Unknown = -1,
      Ok      = 0,
      Info    = 1,
      Warning = 2,
  
      FailureBit = 0x10,
  
      ExpressionFailed = FailureBit | 1,
      ExplicitFailure  = FailureBit | 2,
  
      Exception = 0x100 | FailureBit,
  
      ThrewException      = Exception | 1,
      DidntThrowException = Exception | 2,
  
      FatalErrorCondition = 0x200 | FailureBit
  
    };
  };
  
  bool isOk(ResultWas::OfType resultType);
  bool isJustInfo(int flags);
  
  // ResultDisposition::Flags enum
  struct ResultDisposition
  {
    enum Flags
    {
      Normal = 0x01,
  
      ContinueOnFailure = 0x02, // Failures fail test, but execution continues
      FalseTest         = 0x04, // Prefix expression with !
      SuppressFail      = 0x08  // Failures are reported but do not fail the test
    };
  };
  
  ResultDisposition::Flags
  operator|(ResultDisposition::Flags lhs, ResultDisposition::Flags rhs);
  
  bool shouldContinueOnFailure(int flags);
  inline bool isFalseTest(int flags)
  {
    return (flags & ResultDisposition::FalseTest) != 0;
  }
  bool shouldSuppressFailure(int flags);
  
  } // end namespace Catch
  
  // end catch_result_type.h
  namespace Catch
  {
  struct AssertionInfo
  {
    StringRef macroName;
    SourceLineInfo lineInfo;
    StringRef capturedExpression;
    ResultDisposition::Flags resultDisposition;
  
    // We want to delete this constructor but a compiler bug in 4.8 means
    // the struct is then treated as non-aggregate
    // AssertionInfo() = delete;
  };
  
  } // end namespace Catch
  
  // end catch_assertioninfo.h
  // start catch_decomposer.h
  
  // start catch_tostring.h
  
  #include <cstddef>
  #include <string>
  #include <type_traits>
  #include <vector>
  // start catch_stream.h
  
  #include <cstddef>
  #include <iosfwd>
  #include <ostream>
  
  namespace Catch
  {
  std::ostream &cout();
  std::ostream &cerr();
  std::ostream &clog();
  
  class StringRef;
  
  struct IStream
  {
    virtual ~IStream();
    virtual std::ostream &stream() const = 0;
  };
  
  auto makeStream(StringRef const &filename) -> IStream const *;
  
  class ReusableStringStream : NonCopyable
  {
    std::size_t m_index;
    std::ostream *m_oss;
  
  public:
    ReusableStringStream();
    ~ReusableStringStream();
  
    auto str() const -> std::string;
  
    template<typename T>
    auto operator<<(T const &value) -> ReusableStringStream &
    {
      *m_oss << value;
      return *this;
    }
    auto get() -> std::ostream & { return *m_oss; }
  };
  } // namespace Catch
  
  // end catch_stream.h
  // start catch_interfaces_enum_values_registry.h
  
  #include <vector>
  
  namespace Catch
  {
  namespace Detail
  {
  struct EnumInfo
  {
    StringRef m_name;
    std::vector<std::pair<int, StringRef>> m_values;
  
    ~EnumInfo();
  
    StringRef lookup(int value) const;
  };
  } // namespace Detail
  
  struct IMutableEnumValuesRegistry
  {
    virtual ~IMutableEnumValuesRegistry();
  
    virtual Detail::EnumInfo const &
    registerEnum(StringRef enumName, StringRef allEnums,
                 std::vector<int> const &values) = 0;
  
    template<typename E>
    Detail::EnumInfo const &registerEnum(StringRef enumName, StringRef allEnums,
                                         std::initializer_list<E> values)
    {
      static_assert(sizeof(int) >= sizeof(E), "Cannot serialize enum to int");
      std::vector<int> intValues;
      intValues.reserve(values.size());
      for (auto enumValue : values)
        intValues.push_back(static_cast<int>(enumValue));
      return registerEnum(enumName, allEnums, intValues);
    }
  };
  
  } // namespace Catch
  
  // end catch_interfaces_enum_values_registry.h
  
  #ifdef CATCH_CONFIG_CPP17_STRING_VIEW
  #include <string_view>
  #endif
  
  #ifdef __OBJC__
  // start catch_objc_arc.hpp
  
  #import <Foundation/Foundation.h>
  
  #ifdef __has_feature
  #define CATCH_ARC_ENABLED __has_feature(objc_arc)
  #else
  #define CATCH_ARC_ENABLED 0
  #endif
  
  void arcSafeRelease(NSObject *obj);
  id performOptionalSelector(id obj, SEL sel);
  
  #if !CATCH_ARC_ENABLED
  inline void arcSafeRelease(NSObject *obj) { [obj release]; }
  inline id performOptionalSelector(id obj, SEL sel)
  {
    if ([obj respondsToSelector:sel])
      return [obj performSelector:sel];
    return nil;
  }
  #define CATCH_UNSAFE_UNRETAINED
  #define CATCH_ARC_STRONG
  #else
  inline void arcSafeRelease(NSObject *) {}
  inline id performOptionalSelector(id obj, SEL sel)
  {
  #ifdef __clang__
  #pragma clang diagnostic push
  #pragma clang diagnostic ignored "-Warc-performSelector-leaks"
  #endif
    if ([obj respondsToSelector:sel])
      return [obj performSelector:sel];
  #ifdef __clang__
  #pragma clang diagnostic pop
  #endif
    return nil;
  }
  #define CATCH_UNSAFE_UNRETAINED __unsafe_unretained
  #define CATCH_ARC_STRONG __strong
  #endif
  
  // end catch_objc_arc.hpp
  #endif
  
  #ifdef _MSC_VER
  #pragma warning(push)
  #pragma warning( \
      disable : 4180) // We attempt to stream a function (address) by const&,
                      // which MSVC complains about but is harmless
  #endif
  
  namespace Catch
  {
  namespace Detail
  {
  extern const std::string unprintableString;
  
  std::string rawMemoryToString(const void *object, std::size_t size);
  
  template<typename T>
  std::string rawMemoryToString(const T &object)
  {
    return rawMemoryToString(&object, sizeof(object));
  }
  
  template<typename T>
  class IsStreamInsertable
  {
    template<typename Stream, typename U>
    static auto test(int)
        -> decltype(std::declval<Stream &>() << std::declval<U>(),
                    std::true_type());
  
    template<typename, typename>
    static auto test(...) -> std::false_type;
  
  public:
    static const bool value = decltype(test<std::ostream, const T &>(0))::value;
  };
  
  template<typename E>
  std::string convertUnknownEnumToString(E e);
  
  template<typename T>
  typename std::enable_if<!std::is_enum<T>::value &&
                              !std::is_base_of<std::exception, T>::value,
                          std::string>::type
  convertUnstreamable(T const &)
  {
    return Detail::unprintableString;
  }
  template<typename T>
  typename std::enable_if<!std::is_enum<T>::value &&
                              std::is_base_of<std::exception, T>::value,
                          std::string>::type
  convertUnstreamable(T const &ex)
  {
    return ex.what();
  }
  
  template<typename T>
  typename std::enable_if<std::is_enum<T>::value, std::string>::type
  convertUnstreamable(T const &value)
  {
    return convertUnknownEnumToString(value);
  }
  
  #if defined(_MANAGED)
  //! Convert a CLR string to a utf8 std::string
  template<typename T>
  std::string clrReferenceToString(T ^ ref)
  {
    if (ref == nullptr)
      return std::string("null");
    auto bytes = System::Text::Encoding::UTF8->GetBytes(ref->ToString());
    cli::pin_ptr<System::Byte> p = &bytes[0];
    return std::string(reinterpret_cast<char const *>(p), bytes->Length);
  }
  #endif
  
  } // namespace Detail
  
  // If we decide for C++14, change these to enable_if_ts
  template<typename T, typename = void>
  struct StringMaker
  {
    template<typename Fake = T>
    static
        typename std::enable_if<::Catch::Detail::IsStreamInsertable<Fake>::value,
                                std::string>::type
        convert(const Fake &value)
    {
      ReusableStringStream rss;
      // NB: call using the function-like syntax to avoid ambiguity with
      // user-defined templated operator<< under clang.
      rss.operator<<(value);
      return rss.str();
    }
  
    template<typename Fake = T>
    static
        typename std::enable_if<!::Catch::Detail::IsStreamInsertable<Fake>::value,
                                std::string>::type
        convert(const Fake &value)
    {
  #if !defined(CATCH_CONFIG_FALLBACK_STRINGIFIER)
      return Detail::convertUnstreamable(value);
  #else
      return CATCH_CONFIG_FALLBACK_STRINGIFIER(value);
  #endif
    }
  };
  
  namespace Detail
  {
  // This function dispatches all stringification requests inside of Catch.
  // Should be preferably called fully qualified, like ::Catch::Detail::stringify
  template<typename T>
  std::string stringify(const T &e)
  {
    return ::Catch::StringMaker<typename std::remove_cv<
        typename std::remove_reference<T>::type>::type>::convert(e);
  }
  
  template<typename E>
  std::string convertUnknownEnumToString(E e)
  {
    return ::Catch::Detail::stringify(
        static_cast<typename std::underlying_type<E>::type>(e));
  }
  
  #if defined(_MANAGED)
  template<typename T>
  std::string stringify(T ^ e)
  {
    return ::Catch::StringMaker<T ^>::convert(e);
  }
  #endif
  
  } // namespace Detail
  
  // Some predefined specializations
  
  template<>
  struct StringMaker<std::string>
  {
    static std::string convert(const std::string &str);
  };
  
  #ifdef CATCH_CONFIG_CPP17_STRING_VIEW
  template<>
  struct StringMaker<std::string_view>
  {
    static std::string convert(std::string_view str);
  };
  #endif
  
  template<>
  struct StringMaker<char const *>
  {
    static std::string convert(char const *str);
  };
  template<>
  struct StringMaker<char *>
  {
    static std::string convert(char *str);
  };
  
  #ifdef CATCH_CONFIG_WCHAR
  template<>
  struct StringMaker<std::wstring>
  {
    static std::string convert(const std::wstring &wstr);
  };
  
  #ifdef CATCH_CONFIG_CPP17_STRING_VIEW
  template<>
  struct StringMaker<std::wstring_view>
  {
    static std::string convert(std::wstring_view str);
  };
  #endif
  
  template<>
  struct StringMaker<wchar_t const *>
  {
    static std::string convert(wchar_t const *str);
  };
  template<>
  struct StringMaker<wchar_t *>
  {
    static std::string convert(wchar_t *str);
  };
  #endif
  
  // TBD: Should we use `strnlen` to ensure that we don't go out of the buffer,
  //      while keeping string semantics?
  template<int SZ>
  struct StringMaker<char[SZ]>
  {
    static std::string convert(char const *str)
    {
      return ::Catch::Detail::stringify(std::string{str});
    }
  };
  template<int SZ>
  struct StringMaker<signed char[SZ]>
  {
    static std::string convert(signed char const *str)
    {
      return ::Catch::Detail::stringify(
          std::string{reinterpret_cast<char const *>(str)});
    }
  };
  template<int SZ>
  struct StringMaker<unsigned char[SZ]>
  {
    static std::string convert(unsigned char const *str)
    {
      return ::Catch::Detail::stringify(
          std::string{reinterpret_cast<char const *>(str)});
    }
  };
  
  #if defined(CATCH_CONFIG_CPP17_BYTE)
  template<>
  struct StringMaker<std::byte>
  {
    static std::string convert(std::byte value);
  };
  #endif // defined(CATCH_CONFIG_CPP17_BYTE)
  template<>
  struct StringMaker<int>
  {
    static std::string convert(int value);
  };
  template<>
  struct StringMaker<long>
  {
    static std::string convert(long value);
  };
  template<>
  struct StringMaker<long long>
  {
    static std::string convert(long long value);
  };
  template<>
  struct StringMaker<unsigned int>
  {
    static std::string convert(unsigned int value);
  };
  template<>
  struct StringMaker<unsigned long>
  {
    static std::string convert(unsigned long value);
  };
  template<>
  struct StringMaker<unsigned long long>
  {
    static std::string convert(unsigned long long value);
  };
  
  template<>
  struct StringMaker<bool>
  {
    static std::string convert(bool b);
  };
  
  template<>
  struct StringMaker<char>
  {
    static std::string convert(char c);
  };
  template<>
  struct StringMaker<signed char>
  {
    static std::string convert(signed char c);
  };
  template<>
  struct StringMaker<unsigned char>
  {
    static std::string convert(unsigned char c);
  };
  
  template<>
  struct StringMaker<std::nullptr_t>
  {
    static std::string convert(std::nullptr_t);
  };
  
  template<>
  struct StringMaker<float>
  {
    static std::string convert(float value);
    static int precision;
  };
  
  template<>
  struct StringMaker<double>
  {
    static std::string convert(double value);
    static int precision;
  };
  
  template<typename T>
  struct StringMaker<T *>
  {
    template<typename U>
    static std::string convert(U *p)
    {
      if (p)
      {
        return ::Catch::Detail::rawMemoryToString(p);
      }
      else
      {
        return "nullptr";
      }
    }
  };
  
  template<typename R, typename C>
  struct StringMaker<R C::*>
  {
    static std::string convert(R C::*p)
    {
      if (p)
      {
        return ::Catch::Detail::rawMemoryToString(p);
      }
      else
      {
        return "nullptr";
      }
    }
  };
  
  #if defined(_MANAGED)
  template<typename T>
  struct StringMaker<T ^>
  {
    static std::string convert(T ^ ref)
    {
      return ::Catch::Detail::clrReferenceToString(ref);
    }
  };
  #endif
  
  namespace Detail
  {
  template<typename InputIterator>
  std::string rangeToString(InputIterator first, InputIterator last)
  {
    ReusableStringStream rss;
    rss << "{ ";
    if (first != last)
    {
      rss << ::Catch::Detail::stringify(*first);
      for (++first; first != last; ++first)
        rss << ", " << ::Catch::Detail::stringify(*first);
    }
    rss << " }";
    return rss.str();
  }
  } // namespace Detail
  
  #ifdef __OBJC__
  template<>
  struct StringMaker<NSString *>
  {
    static std::string convert(NSString *nsstring)
    {
      if (!nsstring)
        return "nil";
      return std::string("@") + [nsstring UTF8String];
    }
  };
  template<>
  struct StringMaker<NSObject *>
  {
    static std::string convert(NSObject *nsObject)
    {
      return ::Catch::Detail::stringify([nsObject description]);
    }
  };
  namespace Detail
  {
  inline std::string stringify(NSString *nsstring)
  {
    return StringMaker<NSString *>::convert(nsstring);
  }
  
  } // namespace Detail
  #endif // __OBJC__
  
  } // namespace Catch
  
  //////////////////////////////////////////////////////
  // Separate std-lib types stringification, so it can be selectively enabled
  // This means that we do not bring in
  
  #if defined(CATCH_CONFIG_ENABLE_ALL_STRINGMAKERS)
  #define CATCH_CONFIG_ENABLE_PAIR_STRINGMAKER
  #define CATCH_CONFIG_ENABLE_TUPLE_STRINGMAKER
  #define CATCH_CONFIG_ENABLE_VARIANT_STRINGMAKER
  #define CATCH_CONFIG_ENABLE_CHRONO_STRINGMAKER
  #define CATCH_CONFIG_ENABLE_OPTIONAL_STRINGMAKER
  #endif
  
  // Separate std::pair specialization
  #if defined(CATCH_CONFIG_ENABLE_PAIR_STRINGMAKER)
  #include <utility>
  namespace Catch
  {
  template<typename T1, typename T2>
  struct StringMaker<std::pair<T1, T2>>
  {
    static std::string convert(const std::pair<T1, T2> &pair)
    {
      ReusableStringStream rss;
      rss << "{ " << ::Catch::Detail::stringify(pair.first) << ", "
          << ::Catch::Detail::stringify(pair.second) << " }";
      return rss.str();
    }
  };
  } // namespace Catch
  #endif // CATCH_CONFIG_ENABLE_PAIR_STRINGMAKER
  
  #if defined(CATCH_CONFIG_ENABLE_OPTIONAL_STRINGMAKER) && \
      defined(CATCH_CONFIG_CPP17_OPTIONAL)
  #include <optional>
  namespace Catch
  {
  template<typename T>
  struct StringMaker<std::optional<T>>
  {
    static std::string convert(const std::optional<T> &optional)
    {
      ReusableStringStream rss;
      if (optional.has_value())
      {
        rss << ::Catch::Detail::stringify(*optional);
      }
      else
      {
        rss << "{ }";
      }
      return rss.str();
    }
  };
  } // namespace Catch
  #endif // CATCH_CONFIG_ENABLE_OPTIONAL_STRINGMAKER
  
  // Separate std::tuple specialization
  #if defined(CATCH_CONFIG_ENABLE_TUPLE_STRINGMAKER)
  #include <tuple>
  namespace Catch
  {
  namespace Detail
  {
  template<typename Tuple, std::size_t N = 0,
           bool = (N < std::tuple_size<Tuple>::value)>
  struct TupleElementPrinter
  {
    static void print(const Tuple &tuple, std::ostream &os)
    {
      os << (N ? ", " : " ") << ::Catch::Detail::stringify(std::get<N>(tuple));
      TupleElementPrinter<Tuple, N + 1>::print(tuple, os);
    }
  };
  
  template<typename Tuple, std::size_t N>
  struct TupleElementPrinter<Tuple, N, false>
  {
    static void print(const Tuple &, std::ostream &) {}
  };
  
  } // namespace Detail
  
  template<typename... Types>
  struct StringMaker<std::tuple<Types...>>
  {
    static std::string convert(const std::tuple<Types...> &tuple)
    {
      ReusableStringStream rss;
      rss << '{';
      Detail::TupleElementPrinter<std::tuple<Types...>>::print(tuple, rss.get());
      rss << " }";
      return rss.str();
    }
  };
  } // namespace Catch
  #endif // CATCH_CONFIG_ENABLE_TUPLE_STRINGMAKER
  
  #if defined(CATCH_CONFIG_ENABLE_VARIANT_STRINGMAKER) && \
      defined(CATCH_CONFIG_CPP17_VARIANT)
  #include <variant>
  namespace Catch
  {
  template<>
  struct StringMaker<std::monostate>
  {
    static std::string convert(const std::monostate &) { return "{ }"; }
  };
  
  template<typename... Elements>
  struct StringMaker<std::variant<Elements...>>
  {
    static std::string convert(const std::variant<Elements...> &variant)
    {
      if (variant.valueless_by_exception())
      {
        return "{valueless variant}";
      }
      else
      {
        return std::visit(
            [](const auto &value) { return ::Catch::Detail::stringify(value); },
            variant);
      }
    }
  };
  } // namespace Catch
  #endif // CATCH_CONFIG_ENABLE_VARIANT_STRINGMAKER
  
  namespace Catch
  {
  struct not_this_one
  {}; // Tag type for detecting which begin/ end are being selected
  
  // Import begin/ end from std here so they are considered alongside the fallback
  // (...) overloads in this namespace
  using std::begin;
  using std::end;
  
  not_this_one begin(...);
  not_this_one end(...);
  
  template<typename T>
  struct is_range
  {
    static const bool value =
        !std::is_same<decltype(begin(std::declval<T>())), not_this_one>::value &&
        !std::is_same<decltype(end(std::declval<T>())), not_this_one>::value;
  };
  
  #if defined(_MANAGED) // Managed types are never ranges
  template<typename T>
  struct is_range<T ^>
  {
    static const bool value = false;
  };
  #endif
  
  template<typename Range>
  std::string rangeToString(Range const &range)
  {
    return ::Catch::Detail::rangeToString(begin(range), end(range));
  }
  
  // Handle vector<bool> specially
  template<typename Allocator>
  std::string rangeToString(std::vector<bool, Allocator> const &v)
  {
    ReusableStringStream rss;
    rss << "{ ";
    bool first = true;
    for (bool b : v)
    {
      if (first)
        first = false;
      else
        rss << ", ";
      rss << ::Catch::Detail::stringify(b);
    }
    rss << " }";
    return rss.str();
  }
  
  template<typename R>
  struct StringMaker<R, typename std::enable_if<
                            is_range<R>::value &&
                            !::Catch::Detail::IsStreamInsertable<R>::value>::type>
  {
    static std::string convert(R const &range) { return rangeToString(range); }
  };
  
  template<typename T, int SZ>
  struct StringMaker<T[SZ]>
  {
    static std::string convert(T const (&arr)[SZ]) { return rangeToString(arr); }
  };
  
  } // namespace Catch
  
  // Separate std::chrono::duration specialization
  #if defined(CATCH_CONFIG_ENABLE_CHRONO_STRINGMAKER)
  #include <chrono>
  #include <ctime>
  #include <ratio>
  
  namespace Catch
  {
  template<class Ratio>
  struct ratio_string
  {
    static std::string symbol();
  };
  
  template<class Ratio>
  std::string ratio_string<Ratio>::symbol()
  {
    Catch::ReusableStringStream rss;
    rss << '[' << Ratio::num << '/' << Ratio::den << ']';
    return rss.str();
  }
  template<>
  struct ratio_string<std::atto>
  {
    static std::string symbol();
  };
  template<>
  struct ratio_string<std::femto>
  {
    static std::string symbol();
  };
  template<>
  struct ratio_string<std::pico>
  {
    static std::string symbol();
  };
  template<>
  struct ratio_string<std::nano>
  {
    static std::string symbol();
  };
  template<>
  struct ratio_string<std::micro>
  {
    static std::string symbol();
  };
  template<>
  struct ratio_string<std::milli>
  {
    static std::string symbol();
  };
  
  ////////////
  // std::chrono::duration specializations
  template<typename Value, typename Ratio>
  struct StringMaker<std::chrono::duration<Value, Ratio>>
  {
    static std::string
    convert(std::chrono::duration<Value, Ratio> const &duration)
    {
      ReusableStringStream rss;
      rss << duration.count() << ' ' << ratio_string<Ratio>::symbol() << 's';
      return rss.str();
    }
  };
  template<typename Value>
  struct StringMaker<std::chrono::duration<Value, std::ratio<1>>>
  {
    static std::string
        convert(std::chrono::duration<Value, std::ratio<1>> const &duration)
    {
      ReusableStringStream rss;
      rss << duration.count() << " s";
      return rss.str();
    }
  };
  template<typename Value>
  struct StringMaker<std::chrono::duration<Value, std::ratio<60>>>
  {
    static std::string
        convert(std::chrono::duration<Value, std::ratio<60>> const &duration)
    {
      ReusableStringStream rss;
      rss << duration.count() << " m";
      return rss.str();
    }
  };
  template<typename Value>
  struct StringMaker<std::chrono::duration<Value, std::ratio<3600>>>
  {
    static std::string
        convert(std::chrono::duration<Value, std::ratio<3600>> const &duration)
    {
      ReusableStringStream rss;
      rss << duration.count() << " h";
      return rss.str();
    }
  };
  
  ////////////
  // std::chrono::time_point specialization
  // Generic time_point cannot be specialized, only
  // std::chrono::time_point<system_clock>
  template<typename Clock, typename Duration>
  struct StringMaker<std::chrono::time_point<Clock, Duration>>
  {
    static std::string
    convert(std::chrono::time_point<Clock, Duration> const &time_point)
    {
      return ::Catch::Detail::stringify(time_point.time_since_epoch()) +
             " since epoch";
    }
  };
  // std::chrono::time_point<system_clock> specialization
  template<typename Duration>
  struct StringMaker<std::chrono::time_point<std::chrono::system_clock, Duration>>
  {
    static std::string
    convert(std::chrono::time_point<std::chrono::system_clock, Duration> const
                &time_point)
    {
      auto converted = std::chrono::system_clock::to_time_t(time_point);
  
  #ifdef _MSC_VER
      std::tm timeInfo = {};
      gmtime_s(&timeInfo, &converted);
  #else
      std::tm *timeInfo = std::gmtime(&converted);
  #endif
  
      auto const timeStampSize = sizeof("2017-01-16T17:06:45Z");
      char timeStamp[timeStampSize];
      const char *const fmt = "%Y-%m-%dT%H:%M:%SZ";
  
  #ifdef _MSC_VER
      std::strftime(timeStamp, timeStampSize, fmt, &timeInfo);
  #else
      std::strftime(timeStamp, timeStampSize, fmt, timeInfo);
  #endif
      return std::string(timeStamp);
    }
  };
  } // namespace Catch
  #endif // CATCH_CONFIG_ENABLE_CHRONO_STRINGMAKER
  
  #define INTERNAL_CATCH_REGISTER_ENUM(enumName, ...)                  \
    namespace Catch                                                    \
    {                                                                  \
    template<>                                                         \
    struct StringMaker<enumName>                                       \
    {                                                                  \
      static std::string convert(enumName value)                       \
      {                                                                \
        static const auto &enumInfo =                                  \
            ::Catch::getMutableRegistryHub()                           \
                .getMutableEnumValuesRegistry()                        \
                .registerEnum(#enumName, #__VA_ARGS__, {__VA_ARGS__}); \
        return static_cast<std::string>(                               \
            enumInfo.lookup(static_cast<int>(value)));                 \
      }                                                                \
    };                                                                 \
    }
  
  #define CATCH_REGISTER_ENUM(enumName, ...) \
    INTERNAL_CATCH_REGISTER_ENUM(enumName, __VA_ARGS__)
  
  #ifdef _MSC_VER
  #pragma warning(pop)
  #endif
  
  // end catch_tostring.h
  #include <iosfwd>
  
  #ifdef _MSC_VER
  #pragma warning(push)
  #pragma warning(disable : 4389) // '==' : signed/unsigned mismatch
  #pragma warning(disable : 4018) // more "signed/unsigned mismatch"
  #pragma warning(disable : 4312) // Converting int to T* using reinterpret_cast
                                  // (issue on x64 platform)
  #pragma warning( \
      disable : 4180) // qualifier applied to function type has no meaning
  #pragma warning(disable : 4800) // Forcing result to true or false
  #endif
  
  namespace Catch
  {
  struct ITransientExpression
  {
    auto isBinaryExpression() const -> bool { return m_isBinaryExpression; }
    auto getResult() const -> bool { return m_result; }
    virtual void streamReconstructedExpression(std::ostream &os) const = 0;
  
    ITransientExpression(bool isBinaryExpression, bool result)
        : m_isBinaryExpression(isBinaryExpression), m_result(result)
    {}
  
    // We don't actually need a virtual destructor, but many static analysers
    // complain if it's not here :-(
    virtual ~ITransientExpression();
  
    bool m_isBinaryExpression;
    bool m_result;
  };
  
  void formatReconstructedExpression(std::ostream &os, std::string const &lhs,
                                     StringRef op, std::string const &rhs);
  
  template<typename LhsT, typename RhsT>
  class BinaryExpr : public ITransientExpression
  {
    LhsT m_lhs;
    StringRef m_op;
    RhsT m_rhs;
  
    void streamReconstructedExpression(std::ostream &os) const override
    {
      formatReconstructedExpression(os, Catch::Detail::stringify(m_lhs), m_op,
                                    Catch::Detail::stringify(m_rhs));
    }
  
  public:
    BinaryExpr(bool comparisonResult, LhsT lhs, StringRef op, RhsT rhs)
        : ITransientExpression{true, comparisonResult}, m_lhs(lhs), m_op(op),
          m_rhs(rhs)
    {}
  
    template<typename T>
    auto operator&&(T) const -> BinaryExpr<LhsT, RhsT const &> const
    {
      static_assert(always_false<T>::value,
                    "chained comparisons are not supported inside assertions, "
                    "wrap the expression inside parentheses, or decompose it");
    }
  
    template<typename T>
    auto operator||(T) const -> BinaryExpr<LhsT, RhsT const &> const
    {
      static_assert(always_false<T>::value,
                    "chained comparisons are not supported inside assertions, "
                    "wrap the expression inside parentheses, or decompose it");
    }
  
    template<typename T>
    auto operator==(T) const -> BinaryExpr<LhsT, RhsT const &> const
    {
      static_assert(always_false<T>::value,
                    "chained comparisons are not supported inside assertions, "
                    "wrap the expression inside parentheses, or decompose it");
    }
  
    template<typename T>
    auto operator!=(T) const -> BinaryExpr<LhsT, RhsT const &> const
    {
      static_assert(always_false<T>::value,
                    "chained comparisons are not supported inside assertions, "
                    "wrap the expression inside parentheses, or decompose it");
    }
  
    template<typename T>
    auto operator>(T) const -> BinaryExpr<LhsT, RhsT const &> const
    {
      static_assert(always_false<T>::value,
                    "chained comparisons are not supported inside assertions, "
                    "wrap the expression inside parentheses, or decompose it");
    }
  
    template<typename T>
    auto operator<(T) const -> BinaryExpr<LhsT, RhsT const &> const
    {
      static_assert(always_false<T>::value,
                    "chained comparisons are not supported inside assertions, "
                    "wrap the expression inside parentheses, or decompose it");
    }
  
    template<typename T>
    auto operator>=(T) const -> BinaryExpr<LhsT, RhsT const &> const
    {
      static_assert(always_false<T>::value,
                    "chained comparisons are not supported inside assertions, "
                    "wrap the expression inside parentheses, or decompose it");
    }
  
    template<typename T>
    auto operator<=(T) const -> BinaryExpr<LhsT, RhsT const &> const
    {
      static_assert(always_false<T>::value,
                    "chained comparisons are not supported inside assertions, "
                    "wrap the expression inside parentheses, or decompose it");
    }
  };
  
  template<typename LhsT>
  class UnaryExpr : public ITransientExpression
  {
    LhsT m_lhs;
  
    void streamReconstructedExpression(std::ostream &os) const override
    {
      os << Catch::Detail::stringify(m_lhs);
    }
  
  public:
    explicit UnaryExpr(LhsT lhs)
        : ITransientExpression{false, static_cast<bool>(lhs)}, m_lhs(lhs)
    {}
  };
  
  // Specialised comparison functions to handle equality comparisons between ints
  // and pointers (NULL deduces as an int)
  template<typename LhsT, typename RhsT>
  auto compareEqual(LhsT const &lhs, RhsT const &rhs) -> bool
  {
    return static_cast<bool>(lhs == rhs);
  }
  template<typename T>
  auto compareEqual(T *const &lhs, int rhs) -> bool
  {
    return lhs == reinterpret_cast<void const *>(rhs);
  }
  template<typename T>
  auto compareEqual(T *const &lhs, long rhs) -> bool
  {
    return lhs == reinterpret_cast<void const *>(rhs);
  }
  template<typename T>
  auto compareEqual(int lhs, T *const &rhs) -> bool
  {
    return reinterpret_cast<void const *>(lhs) == rhs;
  }
  template<typename T>
  auto compareEqual(long lhs, T *const &rhs) -> bool
  {
    return reinterpret_cast<void const *>(lhs) == rhs;
  }
  
  template<typename LhsT, typename RhsT>
  auto compareNotEqual(LhsT const &lhs, RhsT &&rhs) -> bool
  {
    return static_cast<bool>(lhs != rhs);
  }
  template<typename T>
  auto compareNotEqual(T *const &lhs, int rhs) -> bool
  {
    return lhs != reinterpret_cast<void const *>(rhs);
  }
  template<typename T>
  auto compareNotEqual(T *const &lhs, long rhs) -> bool
  {
    return lhs != reinterpret_cast<void const *>(rhs);
  }
  template<typename T>
  auto compareNotEqual(int lhs, T *const &rhs) -> bool
  {
    return reinterpret_cast<void const *>(lhs) != rhs;
  }
  template<typename T>
  auto compareNotEqual(long lhs, T *const &rhs) -> bool
  {
    return reinterpret_cast<void const *>(lhs) != rhs;
  }
  
  template<typename LhsT>
  class ExprLhs
  {
    LhsT m_lhs;
  
  public:
    explicit ExprLhs(LhsT lhs) : m_lhs(lhs) {}
  
    template<typename RhsT>
    auto operator==(RhsT const &rhs) -> BinaryExpr<LhsT, RhsT const &> const
    {
      return {compareEqual(m_lhs, rhs), m_lhs, "==", rhs};
    }
    auto operator==(bool rhs) -> BinaryExpr<LhsT, bool> const
    {
      return {m_lhs == rhs, m_lhs, "==", rhs};
    }
  
    template<typename RhsT>
    auto operator!=(RhsT const &rhs) -> BinaryExpr<LhsT, RhsT const &> const
    {
      return {compareNotEqual(m_lhs, rhs), m_lhs, "!=", rhs};
    }
    auto operator!=(bool rhs) -> BinaryExpr<LhsT, bool> const
    {
      return {m_lhs != rhs, m_lhs, "!=", rhs};
    }
  
    template<typename RhsT>
    auto operator>(RhsT const &rhs) -> BinaryExpr<LhsT, RhsT const &> const
    {
      return {static_cast<bool>(m_lhs > rhs), m_lhs, ">", rhs};
    }
    template<typename RhsT>
    auto operator<(RhsT const &rhs) -> BinaryExpr<LhsT, RhsT const &> const
    {
      return {static_cast<bool>(m_lhs < rhs), m_lhs, "<", rhs};
    }
    template<typename RhsT>
    auto operator>=(RhsT const &rhs) -> BinaryExpr<LhsT, RhsT const &> const
    {
      return {static_cast<bool>(m_lhs >= rhs), m_lhs, ">=", rhs};
    }
    template<typename RhsT>
    auto operator<=(RhsT const &rhs) -> BinaryExpr<LhsT, RhsT const &> const
    {
      return {static_cast<bool>(m_lhs <= rhs), m_lhs, "<=", rhs};
    }
  
    template<typename RhsT>
    auto operator&&(RhsT const &) -> BinaryExpr<LhsT, RhsT const &> const
    {
      static_assert(always_false<RhsT>::value,
                    "operator&& is not supported inside assertions, "
                    "wrap the expression inside parentheses, or decompose it");
    }
  
    template<typename RhsT>
    auto operator||(RhsT const &) -> BinaryExpr<LhsT, RhsT const &> const
    {
      static_assert(always_false<RhsT>::value,
                    "operator|| is not supported inside assertions, "
                    "wrap the expression inside parentheses, or decompose it");
    }
  
    auto makeUnaryExpr() const -> UnaryExpr<LhsT>
    {
      return UnaryExpr<LhsT>{m_lhs};
    }
  };
  
  void handleExpression(ITransientExpression const &expr);
  
  template<typename T>
  void handleExpression(ExprLhs<T> const &expr)
  {
    handleExpression(expr.makeUnaryExpr());
  }
  
  struct Decomposer
  {
    template<typename T>
    auto operator<=(T const &lhs) -> ExprLhs<T const &>
    {
      return ExprLhs<T const &>{lhs};
    }
  
    auto operator<=(bool value) -> ExprLhs<bool> { return ExprLhs<bool>{value}; }
  };
  
  } // end namespace Catch
  
  #ifdef _MSC_VER
  #pragma warning(pop)
  #endif
  
  // end catch_decomposer.h
  // start catch_interfaces_capture.h
  
  #include <chrono>
  #include <string>
  
  namespace Catch
  {
  class AssertionResult;
  struct AssertionInfo;
  struct SectionInfo;
  struct SectionEndInfo;
  struct MessageInfo;
  struct MessageBuilder;
  struct Counts;
  struct AssertionReaction;
  struct SourceLineInfo;
  
  struct ITransientExpression;
  struct IGeneratorTracker;
  
  #if defined(CATCH_CONFIG_ENABLE_BENCHMARKING)
  struct BenchmarkInfo;
  template<typename Duration = std::chrono::duration<double, std::nano>>
  struct BenchmarkStats;
  #endif // CATCH_CONFIG_ENABLE_BENCHMARKING
  
  struct IResultCapture
  {
    virtual ~IResultCapture();
  
    virtual bool
    sectionStarted(SectionInfo const &sectionInfo, Counts &assertions) = 0;
    virtual void sectionEnded(SectionEndInfo const &endInfo)           = 0;
    virtual void sectionEndedEarly(SectionEndInfo const &endInfo)      = 0;
  
    virtual auto acquireGeneratorTracker(SourceLineInfo const &lineInfo)
        -> IGeneratorTracker & = 0;
  
  #if defined(CATCH_CONFIG_ENABLE_BENCHMARKING)
    virtual void benchmarkPreparing(std::string const &name)   = 0;
    virtual void benchmarkStarting(BenchmarkInfo const &info)  = 0;
    virtual void benchmarkEnded(BenchmarkStats<> const &stats) = 0;
    virtual void benchmarkFailed(std::string const &error)     = 0;
  #endif // CATCH_CONFIG_ENABLE_BENCHMARKING
  
    virtual void pushScopedMessage(MessageInfo const &message) = 0;
    virtual void popScopedMessage(MessageInfo const &message)  = 0;
  
    virtual void emplaceUnscopedMessage(MessageBuilder const &builder) = 0;
  
    virtual void handleFatalErrorCondition(StringRef message) = 0;
  
    virtual void handleExpr(AssertionInfo const &info,
                            ITransientExpression const &expr,
                            AssertionReaction &reaction) = 0;
    virtual void
    handleMessage(AssertionInfo const &info, ResultWas::OfType resultType,
                  StringRef const &message, AssertionReaction &reaction) = 0;
    virtual void
    handleUnexpectedExceptionNotThrown(AssertionInfo const &info,
                                       AssertionReaction &reaction) = 0;
    virtual void
    handleUnexpectedInflightException(AssertionInfo const &info,
                                      std::string const &message,
                                      AssertionReaction &reaction) = 0;
    virtual void handleIncomplete(AssertionInfo const &info)       = 0;
    virtual void handleNonExpr(AssertionInfo const &info,
                               ResultWas::OfType resultType,
                               AssertionReaction &reaction)        = 0;
  
    virtual bool lastAssertionPassed() = 0;
    virtual void assertionPassed()     = 0;
  
    // Deprecated, do not use:
    virtual std::string getCurrentTestName() const       = 0;
    virtual const AssertionResult *getLastResult() const = 0;
    virtual void exceptionEarlyReported()                = 0;
  };
  
  IResultCapture &getResultCapture();
  } // namespace Catch
  
  // end catch_interfaces_capture.h
  namespace Catch
  {
  struct TestFailureException
  {};
  struct AssertionResultData;
  struct IResultCapture;
  class RunContext;
  
  class LazyExpression
  {
    friend class AssertionHandler;
    friend struct AssertionStats;
    friend class RunContext;
  
    ITransientExpression const *m_transientExpression = nullptr;
    bool m_isNegated;
  
  public:
    LazyExpression(bool isNegated);
    LazyExpression(LazyExpression const &other);
    LazyExpression &operator=(LazyExpression const &) = delete;
  
    explicit operator bool() const;
  
    friend auto operator<<(std::ostream &os, LazyExpression const &lazyExpr)
        -> std::ostream &;
  };
  
  struct AssertionReaction
  {
    bool shouldDebugBreak = false;
    bool shouldThrow      = false;
  };
  
  class AssertionHandler
  {
    AssertionInfo m_assertionInfo;
    AssertionReaction m_reaction;
    bool m_completed = false;
    IResultCapture &m_resultCapture;
  
  public:
    AssertionHandler(StringRef const &macroName, SourceLineInfo const &lineInfo,
                     StringRef capturedExpression,
                     ResultDisposition::Flags resultDisposition);
    ~AssertionHandler()
    {
      if (!m_completed)
      {
        m_resultCapture.handleIncomplete(m_assertionInfo);
      }
    }
  
    template<typename T>
    void handleExpr(ExprLhs<T> const &expr)
    {
      handleExpr(expr.makeUnaryExpr());
    }
    void handleExpr(ITransientExpression const &expr);
  
    void handleMessage(ResultWas::OfType resultType, StringRef const &message);
  
    void handleExceptionThrownAsExpected();
    void handleUnexpectedExceptionNotThrown();
    void handleExceptionNotThrownAsExpected();
    void handleThrowingCallSkipped();
    void handleUnexpectedInflightException();
  
    void complete();
    void setCompleted();
  
    // query
    auto allowThrows() const -> bool;
  };
  
  void handleExceptionMatchExpr(AssertionHandler &handler, std::string const &str,
                                StringRef const &matcherString);
  
  } // namespace Catch
  
  // end catch_assertionhandler.h
  // start catch_message.h
  
  #include <string>
  #include <vector>
  
  namespace Catch
  {
  struct MessageInfo
  {
    MessageInfo(StringRef const &_macroName, SourceLineInfo const &_lineInfo,
                ResultWas::OfType _type);
  
    StringRef macroName;
    std::string message;
    SourceLineInfo lineInfo;
    ResultWas::OfType type;
    unsigned int sequence;
  
    bool operator==(MessageInfo const &other) const;
    bool operator<(MessageInfo const &other) const;
  
  private:
    static unsigned int globalCount;
  };
  
  struct MessageStream
  {
    template<typename T>
    MessageStream &operator<<(T const &value)
    {
      m_stream << value;
      return *this;
    }
  
    ReusableStringStream m_stream;
  };
  
  struct MessageBuilder : MessageStream
  {
    MessageBuilder(StringRef const &macroName, SourceLineInfo const &lineInfo,
                   ResultWas::OfType type);
  
    template<typename T>
    MessageBuilder &operator<<(T const &value)
    {
      m_stream << value;
      return *this;
    }
  
    MessageInfo m_info;
  };
  
  class ScopedMessage
  {
  public:
    explicit ScopedMessage(MessageBuilder const &builder);
    ScopedMessage(ScopedMessage &duplicate) = delete;
    ScopedMessage(ScopedMessage &&old);
    ~ScopedMessage();
  
    MessageInfo m_info;
    bool m_moved;
  };
  
  class Capturer
  {
    std::vector<MessageInfo> m_messages;
    IResultCapture &m_resultCapture = getResultCapture();
    size_t m_captured               = 0;
  
  public:
    Capturer(StringRef macroName, SourceLineInfo const &lineInfo,
             ResultWas::OfType resultType, StringRef names);
    ~Capturer();
  
    void captureValue(size_t index, std::string const &value);
  
    template<typename T>
    void captureValues(size_t index, T const &value)
    {
      captureValue(index, Catch::Detail::stringify(value));
    }
  
    template<typename T, typename... Ts>
    void captureValues(size_t index, T const &value, Ts const &... values)
    {
      captureValue(index, Catch::Detail::stringify(value));
      captureValues(index + 1, values...);
    }
  };
  
  } // end namespace Catch
  
  // end catch_message.h
  #if !defined(CATCH_CONFIG_DISABLE)
  
  #if !defined(CATCH_CONFIG_DISABLE_STRINGIFICATION)
  #define CATCH_INTERNAL_STRINGIFY(...) #__VA_ARGS__
  #else
  #define CATCH_INTERNAL_STRINGIFY(...) \
    "Disabled by CATCH_CONFIG_DISABLE_STRINGIFICATION"
  #endif
  
  #if defined(CATCH_CONFIG_FAST_COMPILE) || \
      defined(CATCH_CONFIG_DISABLE_EXCEPTIONS)
  
  ///////////////////////////////////////////////////////////////////////////////
  // Another way to speed-up compilation is to omit local try-catch for REQUIRE*
  // macros.
  #define INTERNAL_CATCH_TRY
  #define INTERNAL_CATCH_CATCH(capturer)
  
  #else // CATCH_CONFIG_FAST_COMPILE
  
  #define INTERNAL_CATCH_TRY try
  #define INTERNAL_CATCH_CATCH(handler) \
    catch (...) { handler.handleUnexpectedInflightException(); }
  
  #endif
  
  #define INTERNAL_CATCH_REACT(handler) handler.complete();
  
  ///////////////////////////////////////////////////////////////////////////////
  #define INTERNAL_CATCH_TEST(macroName, resultDisposition, ...)              \
    do                                                                        \
    {                                                                         \
      CATCH_INTERNAL_IGNORE_BUT_WARN(__VA_ARGS__);                            \
      Catch::AssertionHandler catchAssertionHandler(                          \
          macroName##_catch_sr, CATCH_INTERNAL_LINEINFO,                      \
          CATCH_INTERNAL_STRINGIFY(__VA_ARGS__), resultDisposition);          \
      INTERNAL_CATCH_TRY                                                      \
      {                                                                       \
        CATCH_INTERNAL_START_WARNINGS_SUPPRESSION                             \
        CATCH_INTERNAL_SUPPRESS_PARENTHESES_WARNINGS                          \
        catchAssertionHandler.handleExpr(Catch::Decomposer() <= __VA_ARGS__); \
        CATCH_INTERNAL_STOP_WARNINGS_SUPPRESSION                              \
      }                                                                       \
      INTERNAL_CATCH_CATCH(catchAssertionHandler)                             \
      INTERNAL_CATCH_REACT(catchAssertionHandler)                             \
    } while ((void)0, (false) && static_cast<bool>(!!(__VA_ARGS__)))
  
  ///////////////////////////////////////////////////////////////////////////////
  #define INTERNAL_CATCH_IF(macroName, resultDisposition, ...)      \
    INTERNAL_CATCH_TEST(macroName, resultDisposition, __VA_ARGS__); \
    if (Catch::getResultCapture().lastAssertionPassed())
  
  ///////////////////////////////////////////////////////////////////////////////
  #define INTERNAL_CATCH_ELSE(macroName, resultDisposition, ...)    \
    INTERNAL_CATCH_TEST(macroName, resultDisposition, __VA_ARGS__); \
    if (!Catch::getResultCapture().lastAssertionPassed())
  
  ///////////////////////////////////////////////////////////////////////////////
  #define INTERNAL_CATCH_NO_THROW(macroName, resultDisposition, ...) \
    do                                                               \
    {                                                                \
      Catch::AssertionHandler catchAssertionHandler(                 \
          macroName##_catch_sr, CATCH_INTERNAL_LINEINFO,             \
          CATCH_INTERNAL_STRINGIFY(__VA_ARGS__), resultDisposition); \
      try                                                            \
      {                                                              \
        static_cast<void>(__VA_ARGS__);                              \
        catchAssertionHandler.handleExceptionNotThrownAsExpected();  \
      }                                                              \
      catch (...)                                                    \
      {                                                              \
        catchAssertionHandler.handleUnexpectedInflightException();   \
      }                                                              \
      INTERNAL_CATCH_REACT(catchAssertionHandler)                    \
    } while (false)
  
  ///////////////////////////////////////////////////////////////////////////////
  #define INTERNAL_CATCH_THROWS(macroName, resultDisposition, ...)    \
    do                                                                \
    {                                                                 \
      Catch::AssertionHandler catchAssertionHandler(                  \
          macroName##_catch_sr, CATCH_INTERNAL_LINEINFO,              \
          CATCH_INTERNAL_STRINGIFY(__VA_ARGS__), resultDisposition);  \
      if (catchAssertionHandler.allowThrows())                        \
        try                                                           \
        {                                                             \
          static_cast<void>(__VA_ARGS__);                             \
          catchAssertionHandler.handleUnexpectedExceptionNotThrown(); \
        }                                                             \
        catch (...)                                                   \
        {                                                             \
          catchAssertionHandler.handleExceptionThrownAsExpected();    \
        }                                                             \
      else                                                            \
        catchAssertionHandler.handleThrowingCallSkipped();            \
      INTERNAL_CATCH_REACT(catchAssertionHandler)                     \
    } while (false)
  
  ///////////////////////////////////////////////////////////////////////////////
  #define INTERNAL_CATCH_THROWS_AS(macroName, exceptionType, resultDisposition, \
                                   expr)                                        \
    do                                                                          \
    {                                                                           \
      Catch::AssertionHandler catchAssertionHandler(                            \
          macroName##_catch_sr, CATCH_INTERNAL_LINEINFO,                        \
          CATCH_INTERNAL_STRINGIFY(expr) ", " CATCH_INTERNAL_STRINGIFY(         \
              exceptionType),                                                   \
          resultDisposition);                                                   \
      if (catchAssertionHandler.allowThrows())                                  \
        try                                                                     \
        {                                                                       \
          static_cast<void>(expr);                                              \
          catchAssertionHandler.handleUnexpectedExceptionNotThrown();           \
        }                                                                       \
        catch (exceptionType const &)                                           \
        {                                                                       \
          catchAssertionHandler.handleExceptionThrownAsExpected();              \
        }                                                                       \
        catch (...)                                                             \
        {                                                                       \
          catchAssertionHandler.handleUnexpectedInflightException();            \
        }                                                                       \
      else                                                                      \
        catchAssertionHandler.handleThrowingCallSkipped();                      \
      INTERNAL_CATCH_REACT(catchAssertionHandler)                               \
    } while (false)
  
  ///////////////////////////////////////////////////////////////////////////////
  #define INTERNAL_CATCH_MSG(macroName, messageType, resultDisposition, ...) \
    do                                                                       \
    {                                                                        \
      Catch::AssertionHandler catchAssertionHandler(                         \
          macroName##_catch_sr, CATCH_INTERNAL_LINEINFO, Catch::StringRef(), \
          resultDisposition);                                                \
      catchAssertionHandler.handleMessage(                                   \
          messageType,                                                       \
          (Catch::MessageStream() << __VA_ARGS__ + ::Catch::StreamEndStop()) \
              .m_stream.str());                                              \
      INTERNAL_CATCH_REACT(catchAssertionHandler)                            \
    } while (false)
  
  ///////////////////////////////////////////////////////////////////////////////
  #define INTERNAL_CATCH_CAPTURE(varName, macroName, ...)                 \
    auto varName = Catch::Capturer(macroName, CATCH_INTERNAL_LINEINFO,    \
                                   Catch::ResultWas::Info, #__VA_ARGS__); \
    varName.captureValues(0, __VA_ARGS__)
  
  ///////////////////////////////////////////////////////////////////////////////
  #define INTERNAL_CATCH_INFO(macroName, log)                                \
    Catch::ScopedMessage INTERNAL_CATCH_UNIQUE_NAME(scopedMessage)(          \
        Catch::MessageBuilder(macroName##_catch_sr, CATCH_INTERNAL_LINEINFO, \
                              Catch::ResultWas::Info)                        \
        << log);
  
  ///////////////////////////////////////////////////////////////////////////////
  #define INTERNAL_CATCH_UNSCOPED_INFO(macroName, log)                       \
    Catch::getResultCapture().emplaceUnscopedMessage(                        \
        Catch::MessageBuilder(macroName##_catch_sr, CATCH_INTERNAL_LINEINFO, \
                              Catch::ResultWas::Info)                        \
        << log)
  
  ///////////////////////////////////////////////////////////////////////////////
  // Although this is matcher-based, it can be used with just a string
  #define INTERNAL_CATCH_THROWS_STR_MATCHES(macroName, resultDisposition,      \
                                            matcher, ...)                      \
    do                                                                         \
    {                                                                          \
      Catch::AssertionHandler catchAssertionHandler(                           \
          macroName##_catch_sr, CATCH_INTERNAL_LINEINFO,                       \
          CATCH_INTERNAL_STRINGIFY(__VA_ARGS__) ", " CATCH_INTERNAL_STRINGIFY( \
              matcher),                                                        \
          resultDisposition);                                                  \
      if (catchAssertionHandler.allowThrows())                                 \
        try                                                                    \
        {                                                                      \
          static_cast<void>(__VA_ARGS__);                                      \
          catchAssertionHandler.handleUnexpectedExceptionNotThrown();          \
        }                                                                      \
        catch (...)                                                            \
        {                                                                      \
          Catch::handleExceptionMatchExpr(catchAssertionHandler, matcher,      \
                                          #matcher##_catch_sr);                \
        }                                                                      \
      else                                                                     \
        catchAssertionHandler.handleThrowingCallSkipped();                     \
      INTERNAL_CATCH_REACT(catchAssertionHandler)                              \
    } while (false)
  
  #endif // CATCH_CONFIG_DISABLE
  
  // end catch_capture.hpp
  // start catch_section.h
  
  // start catch_section_info.h
  
  // start catch_totals.h
  
  #include <cstddef>
  
  namespace Catch
  {
  struct Counts
  {
    Counts operator-(Counts const &other) const;
    Counts &operator+=(Counts const &other);
  
    std::size_t total() const;
    bool allPassed() const;
    bool allOk() const;
  
    std::size_t passed      = 0;
    std::size_t failed      = 0;
    std::size_t failedButOk = 0;
  };
  
  struct Totals
  {
    Totals operator-(Totals const &other) const;
    Totals &operator+=(Totals const &other);
  
    Totals delta(Totals const &prevTotals) const;
  
    int error = 0;
    Counts assertions;
    Counts testCases;
  };
  } // namespace Catch
  
  // end catch_totals.h
  #include <string>
  
  namespace Catch
  {
  struct SectionInfo
  {
    SectionInfo(SourceLineInfo const &_lineInfo, std::string const &_name);
  
    // Deprecated
    SectionInfo(SourceLineInfo const &_lineInfo, std::string const &_name,
                std::string const &)
        : SectionInfo(_lineInfo, _name)
    {}
  
    std::string name;
    std::string description; // !Deprecated: this will always be empty
    SourceLineInfo lineInfo;
  };
  
  struct SectionEndInfo
  {
    SectionInfo sectionInfo;
    Counts prevAssertions;
    double durationInSeconds;
  };
  
  } // end namespace Catch
  
  // end catch_section_info.h
  // start catch_timer.h
  
  #include <cstdint>
  
  namespace Catch
  {
  auto getCurrentNanosecondsSinceEpoch() -> uint64_t;
  auto getEstimatedClockResolution() -> uint64_t;
  
  class Timer
  {
    uint64_t m_nanoseconds = 0;
  
  public:
    void start();
    auto getElapsedNanoseconds() const -> uint64_t;
    auto getElapsedMicroseconds() const -> uint64_t;
    auto getElapsedMilliseconds() const -> unsigned int;
    auto getElapsedSeconds() const -> double;
  };
  
  } // namespace Catch
  
  // end catch_timer.h
  #include <string>
  
  namespace Catch
  {
  class Section : NonCopyable
  {
  public:
    Section(SectionInfo const &info);
    ~Section();
  
    // This indicates whether the section should be executed or not
    explicit operator bool() const;
  
  private:
    SectionInfo m_info;
  
    std::string m_name;
    Counts m_assertions;
    bool m_sectionIncluded;
    Timer m_timer;
  };
  
  } // end namespace Catch
  
  #define INTERNAL_CATCH_SECTION(...)                                 \
    CATCH_INTERNAL_START_WARNINGS_SUPPRESSION                         \
    CATCH_INTERNAL_SUPPRESS_UNUSED_WARNINGS                           \
    if (Catch::Section const &INTERNAL_CATCH_UNIQUE_NAME(             \
            catch_internal_Section) =                                 \
            Catch::SectionInfo(CATCH_INTERNAL_LINEINFO, __VA_ARGS__)) \
    CATCH_INTERNAL_STOP_WARNINGS_SUPPRESSION
  
  #define INTERNAL_CATCH_DYNAMIC_SECTION(...)                          \
    CATCH_INTERNAL_START_WARNINGS_SUPPRESSION                          \
    CATCH_INTERNAL_SUPPRESS_UNUSED_WARNINGS                            \
    if (Catch::Section const &INTERNAL_CATCH_UNIQUE_NAME(              \
            catch_internal_Section) =                                  \
            Catch::SectionInfo(                                        \
                CATCH_INTERNAL_LINEINFO,                               \
                (Catch::ReusableStringStream() << __VA_ARGS__).str())) \
    CATCH_INTERNAL_STOP_WARNINGS_SUPPRESSION
  
  // end catch_section.h
  // start catch_interfaces_exception.h
  
  // start catch_interfaces_registry_hub.h
  
  #include <memory>
  #include <string>
  
  namespace Catch
  {
  class TestCase;
  struct ITestCaseRegistry;
  struct IExceptionTranslatorRegistry;
  struct IExceptionTranslator;
  struct IReporterRegistry;
  struct IReporterFactory;
  struct ITagAliasRegistry;
  struct IMutableEnumValuesRegistry;
  
  class StartupExceptionRegistry;
  
  using IReporterFactoryPtr = std::shared_ptr<IReporterFactory>;
  
  struct IRegistryHub
  {
    virtual ~IRegistryHub();
  
    virtual IReporterRegistry const &getReporterRegistry() const = 0;
    virtual ITestCaseRegistry const &getTestCaseRegistry() const = 0;
    virtual ITagAliasRegistry const &getTagAliasRegistry() const = 0;
    virtual IExceptionTranslatorRegistry const &
    getExceptionTranslatorRegistry() const = 0;
  
    virtual StartupExceptionRegistry const &
    getStartupExceptionRegistry() const = 0;
  };
  
  struct IMutableRegistryHub
  {
    virtual ~IMutableRegistryHub();
    virtual void registerReporter(std::string const &name,
                                  IReporterFactoryPtr const &factory)       = 0;
    virtual void registerListener(IReporterFactoryPtr const &factory)       = 0;
    virtual void registerTest(TestCase const &testInfo)                     = 0;
    virtual void registerTranslator(const IExceptionTranslator *translator) = 0;
    virtual void registerTagAlias(std::string const &alias,
                                  std::string const &tag,
                                  SourceLineInfo const &lineInfo)           = 0;
    virtual void registerStartupException() noexcept                        = 0;
    virtual IMutableEnumValuesRegistry &getMutableEnumValuesRegistry()      = 0;
  };
  
  IRegistryHub const &getRegistryHub();
  IMutableRegistryHub &getMutableRegistryHub();
  void cleanUp();
  std::string translateActiveException();
  
  } // namespace Catch
  
  // end catch_interfaces_registry_hub.h
  #if defined(CATCH_CONFIG_DISABLE)
  #define INTERNAL_CATCH_TRANSLATE_EXCEPTION_NO_REG(translatorName, signature) \
    static std::string translatorName(signature)
  #endif
  
  #include <exception>
  #include <string>
  #include <vector>
  
  namespace Catch
  {
  using exceptionTranslateFunction = std::string (*)();
  
  struct IExceptionTranslator;
  using ExceptionTranslators =
      std::vector<std::unique_ptr<IExceptionTranslator const>>;
  
  struct IExceptionTranslator
  {
    virtual ~IExceptionTranslator();
    virtual std::string
    translate(ExceptionTranslators::const_iterator it,
              ExceptionTranslators::const_iterator itEnd) const = 0;
  };
  
  struct IExceptionTranslatorRegistry
  {
    virtual ~IExceptionTranslatorRegistry();
  
    virtual std::string translateActiveException() const = 0;
  };
  
  class ExceptionTranslatorRegistrar
  {
    template<typename T>
    class ExceptionTranslator : public IExceptionTranslator
    {
    public:
      ExceptionTranslator(std::string (*translateFunction)(T &))
          : m_translateFunction(translateFunction)
      {}
  
      std::string
      translate(ExceptionTranslators::const_iterator it,
                ExceptionTranslators::const_iterator itEnd) const override
      {
        try
        {
          if (it == itEnd)
            std::rethrow_exception(std::current_exception());
          else
            return (*it)->translate(it + 1, itEnd);
        }
        catch (T &ex)
        {
          return m_translateFunction(ex);
        }
      }
  
    protected:
      std::string (*m_translateFunction)(T &);
    };
  
  public:
    template<typename T>
    ExceptionTranslatorRegistrar(std::string (*translateFunction)(T &))
    {
      getMutableRegistryHub().registerTranslator(
          new ExceptionTranslator<T>(translateFunction));
    }
  };
  } // namespace Catch
  
  ///////////////////////////////////////////////////////////////////////////////
  #define INTERNAL_CATCH_TRANSLATE_EXCEPTION2(translatorName, signature) \
    static std::string translatorName(signature);                        \
    CATCH_INTERNAL_START_WARNINGS_SUPPRESSION                            \
    CATCH_INTERNAL_SUPPRESS_GLOBALS_WARNINGS                             \
    namespace                                                            \
    {                                                                    \
    Catch::ExceptionTranslatorRegistrar INTERNAL_CATCH_UNIQUE_NAME(      \
        catch_internal_ExceptionRegistrar)(&translatorName);             \
    }                                                                    \
    CATCH_INTERNAL_STOP_WARNINGS_SUPPRESSION                             \
    static std::string translatorName(signature)
  
  #define INTERNAL_CATCH_TRANSLATE_EXCEPTION(signature)                 \
    INTERNAL_CATCH_TRANSLATE_EXCEPTION2(                                \
        INTERNAL_CATCH_UNIQUE_NAME(catch_internal_ExceptionTranslator), \
        signature)
  
  // end catch_interfaces_exception.h
  // start catch_approx.h
  
  #include <type_traits>
  
  namespace Catch
  {
  namespace Detail
  {
  class Approx
  {
  private:
    bool equalityComparisonImpl(double other) const;
    // Validates the new margin (margin >= 0)
    // out-of-line to avoid including stdexcept in the header
    void setMargin(double margin);
    // Validates the new epsilon (0 < epsilon < 1)
    // out-of-line to avoid including stdexcept in the header
    void setEpsilon(double epsilon);
  
  public:
    explicit Approx(double value);
  
    static Approx custom();
  
    Approx operator-() const;
  
    template<typename T, typename = typename std::enable_if<
                             std::is_constructible<double, T>::value>::type>
    Approx operator()(T const &value)
    {
      Approx approx(static_cast<double>(value));
      approx.m_epsilon = m_epsilon;
      approx.m_margin  = m_margin;
      approx.m_scale   = m_scale;
      return approx;
    }
  
    template<typename T, typename = typename std::enable_if<
                             std::is_constructible<double, T>::value>::type>
    explicit Approx(T const &value) : Approx(static_cast<double>(value))
    {}
  
    template<typename T, typename = typename std::enable_if<
                             std::is_constructible<double, T>::value>::type>
    friend bool operator==(const T &lhs, Approx const &rhs)
    {
      auto lhs_v = static_cast<double>(lhs);
      return rhs.equalityComparisonImpl(lhs_v);
    }
  
    template<typename T, typename = typename std::enable_if<
                             std::is_constructible<double, T>::value>::type>
    friend bool operator==(Approx const &lhs, const T &rhs)
    {
      return operator==(rhs, lhs);
    }
  
    template<typename T, typename = typename std::enable_if<
                             std::is_constructible<double, T>::value>::type>
    friend bool operator!=(T const &lhs, Approx const &rhs)
    {
      return !operator==(lhs, rhs);
    }
  
    template<typename T, typename = typename std::enable_if<
                             std::is_constructible<double, T>::value>::type>
    friend bool operator!=(Approx const &lhs, T const &rhs)
    {
      return !operator==(rhs, lhs);
    }
  
    template<typename T, typename = typename std::enable_if<
                             std::is_constructible<double, T>::value>::type>
    friend bool operator<=(T const &lhs, Approx const &rhs)
    {
      return static_cast<double>(lhs) < rhs.m_value || lhs == rhs;
    }
  
    template<typename T, typename = typename std::enable_if<
                             std::is_constructible<double, T>::value>::type>
    friend bool operator<=(Approx const &lhs, T const &rhs)
    {
      return lhs.m_value < static_cast<double>(rhs) || lhs == rhs;
    }
  
    template<typename T, typename = typename std::enable_if<
                             std::is_constructible<double, T>::value>::type>
    friend bool operator>=(T const &lhs, Approx const &rhs)
    {
      return static_cast<double>(lhs) > rhs.m_value || lhs == rhs;
    }
  
    template<typename T, typename = typename std::enable_if<
                             std::is_constructible<double, T>::value>::type>
    friend bool operator>=(Approx const &lhs, T const &rhs)
    {
      return lhs.m_value > static_cast<double>(rhs) || lhs == rhs;
    }
  
    template<typename T, typename = typename std::enable_if<
                             std::is_constructible<double, T>::value>::type>
    Approx &epsilon(T const &newEpsilon)
    {
      double epsilonAsDouble = static_cast<double>(newEpsilon);
      setEpsilon(epsilonAsDouble);
      return *this;
    }
  
    template<typename T, typename = typename std::enable_if<
                             std::is_constructible<double, T>::value>::type>
    Approx &margin(T const &newMargin)
    {
      double marginAsDouble = static_cast<double>(newMargin);
      setMargin(marginAsDouble);
      return *this;
    }
  
    template<typename T, typename = typename std::enable_if<
                             std::is_constructible<double, T>::value>::type>
    Approx &scale(T const &newScale)
    {
      m_scale = static_cast<double>(newScale);
      return *this;
    }
  
    std::string toString() const;
  
  private:
    double m_epsilon;
    double m_margin;
    double m_scale;
    double m_value;
  };
  } // end namespace Detail
  
  namespace literals
  {
  Detail::Approx operator"" _a(long double val);
  Detail::Approx operator"" _a(unsigned long long val);
  } // end namespace literals
  
  template<>
  struct StringMaker<Catch::Detail::Approx>
  {
    static std::string convert(Catch::Detail::Approx const &value);
  };
  
  } // end namespace Catch
  
  // end catch_approx.h
  // start catch_string_manip.h
  
  #include <iosfwd>
  #include <string>
  #include <vector>
  
  namespace Catch
  {
  bool startsWith(std::string const &s, std::string const &prefix);
  bool startsWith(std::string const &s, char prefix);
  bool endsWith(std::string const &s, std::string const &suffix);
  bool endsWith(std::string const &s, char suffix);
  bool contains(std::string const &s, std::string const &infix);
  void toLowerInPlace(std::string &s);
  std::string toLower(std::string const &s);
  //! Returns a new string without whitespace at the start/end
  std::string trim(std::string const &str);
  //! Returns a substring of the original ref without whitespace. Beware
  //! lifetimes!
  StringRef trim(StringRef ref);
  
  // !!! Be aware, returns refs into original string - make sure original string
  // outlives them
  std::vector<StringRef> splitStringRef(StringRef str, char delimiter);
  bool replaceInPlace(std::string &str, std::string const &replaceThis,
                      std::string const &withThis);
  
  struct pluralise
  {
    pluralise(std::size_t count, std::string const &label);
  
    friend std::ostream &
    operator<<(std::ostream &os, pluralise const &pluraliser);
  
    std::size_t m_count;
    std::string m_label;
  };
  } // namespace Catch
  
  // end catch_string_manip.h
  #ifndef CATCH_CONFIG_DISABLE_MATCHERS
  // start catch_capture_matchers.h
  
  // start catch_matchers.h
  
  #include <string>
  #include <vector>
  
  namespace Catch
  {
  namespace Matchers
  {
  namespace Impl
  {
  template<typename ArgT>
  struct MatchAllOf;
  template<typename ArgT>
  struct MatchAnyOf;
  template<typename ArgT>
  struct MatchNotOf;
  
  class MatcherUntypedBase
  {
  public:
    MatcherUntypedBase()                           = default;
    MatcherUntypedBase(MatcherUntypedBase const &) = default;
    MatcherUntypedBase &operator=(MatcherUntypedBase const &) = delete;
    std::string toString() const;
  
  protected:
    virtual ~MatcherUntypedBase();
    virtual std::string describe() const = 0;
    mutable std::string m_cachedToString;
  };
  
  #ifdef __clang__
  #pragma clang diagnostic push
  #pragma clang diagnostic ignored "-Wnon-virtual-dtor"
  #endif
  
  template<typename ObjectT>
  struct MatcherMethod
  {
    virtual bool match(ObjectT const &arg) const = 0;
  };
  
  #if defined(__OBJC__)
  // Hack to fix Catch GH issue #1661. Could use id for generic Object support.
  // use of const for Object pointers is very uncommon and under ARC it causes
  // some kind of signature mismatch that breaks compilation
  template<>
  struct MatcherMethod<NSString *>
  {
    virtual bool match(NSString *arg) const = 0;
  };
  #endif
  
  #ifdef __clang__
  #pragma clang diagnostic pop
  #endif
  
  template<typename T>
  struct MatcherBase : MatcherUntypedBase, MatcherMethod<T>
  {
    MatchAllOf<T> operator&&(MatcherBase const &other) const;
    MatchAnyOf<T> operator||(MatcherBase const &other) const;
    MatchNotOf<T> operator!() const;
  };
  
  template<typename ArgT>
  struct MatchAllOf : MatcherBase<ArgT>
  {
    bool match(ArgT const &arg) const override
    {
      for (auto matcher : m_matchers)
      {
        if (!matcher->match(arg))
          return false;
      }
      return true;
    }
    std::string describe() const override
    {
      std::string description;
      description.reserve(4 + m_matchers.size() * 32);
      description += "( ";
      bool first = true;
      for (auto matcher : m_matchers)
      {
        if (first)
          first = false;
        else
          description += " and ";
        description += matcher->toString();
      }
      description += " )";
      return description;
    }
  
    MatchAllOf<ArgT> operator&&(MatcherBase<ArgT> const &other)
    {
      auto copy(*this);
      copy.m_matchers.push_back(&other);
      return copy;
    }
  
    std::vector<MatcherBase<ArgT> const *> m_matchers;
  };
  template<typename ArgT>
  struct MatchAnyOf : MatcherBase<ArgT>
  {
    bool match(ArgT const &arg) const override
    {
      for (auto matcher : m_matchers)
      {
        if (matcher->match(arg))
          return true;
      }
      return false;
    }
    std::string describe() const override
    {
      std::string description;
      description.reserve(4 + m_matchers.size() * 32);
      description += "( ";
      bool first = true;
      for (auto matcher : m_matchers)
      {
        if (first)
          first = false;
        else
          description += " or ";
        description += matcher->toString();
      }
      description += " )";
      return description;
    }
  
    MatchAnyOf<ArgT> operator||(MatcherBase<ArgT> const &other)
    {
      auto copy(*this);
      copy.m_matchers.push_back(&other);
      return copy;
    }
  
    std::vector<MatcherBase<ArgT> const *> m_matchers;
  };
  
  template<typename ArgT>
  struct MatchNotOf : MatcherBase<ArgT>
  {
    MatchNotOf(MatcherBase<ArgT> const &underlyingMatcher)
        : m_underlyingMatcher(underlyingMatcher)
    {}
  
    bool match(ArgT const &arg) const override
    {
      return !m_underlyingMatcher.match(arg);
    }
  
    std::string describe() const override
    {
      return "not " + m_underlyingMatcher.toString();
    }
    MatcherBase<ArgT> const &m_underlyingMatcher;
  };
  
  template<typename T>
  MatchAllOf<T> MatcherBase<T>::operator&&(MatcherBase const &other) const
  {
    return MatchAllOf<T>() && *this && other;
  }
  template<typename T>
  MatchAnyOf<T> MatcherBase<T>::operator||(MatcherBase const &other) const
  {
    return MatchAnyOf<T>() || *this || other;
  }
  template<typename T>
  MatchNotOf<T> MatcherBase<T>::operator!() const
  {
    return MatchNotOf<T>(*this);
  }
  
  } // namespace Impl
  
  } // namespace Matchers
  
  using namespace Matchers;
  using Matchers::Impl::MatcherBase;
  
  } // namespace Catch
  
  // end catch_matchers.h
  // start catch_matchers_exception.hpp
  
  namespace Catch
  {
  namespace Matchers
  {
  namespace Exception
  {
  class ExceptionMessageMatcher : public MatcherBase<std::exception>
  {
    std::string m_message;
  
  public:
    ExceptionMessageMatcher(std::string const &message) : m_message(message) {}
  
    bool match(std::exception const &ex) const override;
  
    std::string describe() const override;
  };
  
  } // namespace Exception
  
  Exception::ExceptionMessageMatcher Message(std::string const &message);
  
  } // namespace Matchers
  } // namespace Catch
  
  // end catch_matchers_exception.hpp
  // start catch_matchers_floating.h
  
  namespace Catch
  {
  namespace Matchers
  {
  namespace Floating
  {
  enum class FloatingPointKind : uint8_t;
  
  struct WithinAbsMatcher : MatcherBase<double>
  {
    WithinAbsMatcher(double target, double margin);
    bool match(double const &matchee) const override;
    std::string describe() const override;
  
  private:
    double m_target;
    double m_margin;
  };
  
  struct WithinUlpsMatcher : MatcherBase<double>
  {
    WithinUlpsMatcher(double target, uint64_t ulps, FloatingPointKind baseType);
    bool match(double const &matchee) const override;
    std::string describe() const override;
  
  private:
    double m_target;
    uint64_t m_ulps;
    FloatingPointKind m_type;
  };
  
  // Given IEEE-754 format for floats and doubles, we can assume
  // that float -> double promotion is lossless. Given this, we can
  // assume that if we do the standard relative comparison of
  // |lhs - rhs| <= epsilon * max(fabs(lhs), fabs(rhs)), then we get
  // the same result if we do this for floats, as if we do this for
  // doubles that were promoted from floats.
  struct WithinRelMatcher : MatcherBase<double>
  {
    WithinRelMatcher(double target, double epsilon);
    bool match(double const &matchee) const override;
    std::string describe() const override;
  
  private:
    double m_target;
    double m_epsilon;
  };
  
  } // namespace Floating
  
  // The following functions create the actual matcher objects.
  // This allows the types to be inferred
  Floating::WithinUlpsMatcher WithinULP(double target, uint64_t maxUlpDiff);
  Floating::WithinUlpsMatcher WithinULP(float target, uint64_t maxUlpDiff);
  Floating::WithinAbsMatcher WithinAbs(double target, double margin);
  Floating::WithinRelMatcher WithinRel(double target, double eps);
  // defaults epsilon to 100*numeric_limits<double>::epsilon()
  Floating::WithinRelMatcher WithinRel(double target);
  Floating::WithinRelMatcher WithinRel(float target, float eps);
  // defaults epsilon to 100*numeric_limits<float>::epsilon()
  Floating::WithinRelMatcher WithinRel(float target);
  
  } // namespace Matchers
  } // namespace Catch
  
  // end catch_matchers_floating.h
  // start catch_matchers_generic.hpp
  
  #include <functional>
  #include <string>
  
  namespace Catch
  {
  namespace Matchers
  {
  namespace Generic
  {
  namespace Detail
  {
  std::string finalizeDescription(const std::string &desc);
  }
  
  template<typename T>
  class PredicateMatcher : public MatcherBase<T>
  {
    std::function<bool(T const &)> m_predicate;
    std::string m_description;
  
  public:
    PredicateMatcher(std::function<bool(T const &)> const &elem,
                     std::string const &descr)
        : m_predicate(std::move(elem)),
          m_description(Detail::finalizeDescription(descr))
    {}
  
    bool match(T const &item) const override { return m_predicate(item); }
  
    std::string describe() const override { return m_description; }
  };
  
  } // namespace Generic
  
  // The following functions create the actual matcher objects.
  // The user has to explicitly specify type to the function, because
  // inferring std::function<bool(T const&)> is hard (but possible) and
  // requires a lot of TMP.
  template<typename T>
  Generic::PredicateMatcher<T>
  Predicate(std::function<bool(T const &)> const &predicate,
            std::string const &description = "")
  {
    return Generic::PredicateMatcher<T>(predicate, description);
  }
  
  } // namespace Matchers
  } // namespace Catch
  
  // end catch_matchers_generic.hpp
  // start catch_matchers_string.h
  
  #include <string>
  
  namespace Catch
  {
  namespace Matchers
  {
  namespace StdString
  {
  struct CasedString
  {
    CasedString(std::string const &str, CaseSensitive::Choice caseSensitivity);
    std::string adjustString(std::string const &str) const;
    std::string caseSensitivitySuffix() const;
  
    CaseSensitive::Choice m_caseSensitivity;
    std::string m_str;
  };
  
  struct StringMatcherBase : MatcherBase<std::string>
  {
    StringMatcherBase(std::string const &operation,
                      CasedString const &comparator);
    std::string describe() const override;
  
    CasedString m_comparator;
    std::string m_operation;
  };
  
  struct EqualsMatcher : StringMatcherBase
  {
    EqualsMatcher(CasedString const &comparator);
    bool match(std::string const &source) const override;
  };
  struct ContainsMatcher : StringMatcherBase
  {
    ContainsMatcher(CasedString const &comparator);
    bool match(std::string const &source) const override;
  };
  struct StartsWithMatcher : StringMatcherBase
  {
    StartsWithMatcher(CasedString const &comparator);
    bool match(std::string const &source) const override;
  };
  struct EndsWithMatcher : StringMatcherBase
  {
    EndsWithMatcher(CasedString const &comparator);
    bool match(std::string const &source) const override;
  };
  
  struct RegexMatcher : MatcherBase<std::string>
  {
    RegexMatcher(std::string regex, CaseSensitive::Choice caseSensitivity);
    bool match(std::string const &matchee) const override;
    std::string describe() const override;
  
  private:
    std::string m_regex;
    CaseSensitive::Choice m_caseSensitivity;
  };
  
  } // namespace StdString
  
  // The following functions create the actual matcher objects.
  // This allows the types to be inferred
  
  StdString::EqualsMatcher
  Equals(std::string const &str,
         CaseSensitive::Choice caseSensitivity = CaseSensitive::Yes);
  StdString::ContainsMatcher
  Contains(std::string const &str,
           CaseSensitive::Choice caseSensitivity = CaseSensitive::Yes);
  StdString::EndsWithMatcher
  EndsWith(std::string const &str,
           CaseSensitive::Choice caseSensitivity = CaseSensitive::Yes);
  StdString::StartsWithMatcher
  StartsWith(std::string const &str,
             CaseSensitive::Choice caseSensitivity = CaseSensitive::Yes);
  StdString::RegexMatcher
  Matches(std::string const &regex,
          CaseSensitive::Choice caseSensitivity = CaseSensitive::Yes);
  
  } // namespace Matchers
  } // namespace Catch
  
  // end catch_matchers_string.h
  // start catch_matchers_vector.h
  
  #include <algorithm>
  
  namespace Catch
  {
  namespace Matchers
  {
  namespace Vector
  {
  template<typename T>
  struct ContainsElementMatcher : MatcherBase<std::vector<T>>
  {
    ContainsElementMatcher(T const &comparator) : m_comparator(comparator) {}
  
    bool match(std::vector<T> const &v) const override
    {
      for (auto const &el : v)
      {
        if (el == m_comparator)
        {
          return true;
        }
      }
      return false;
    }
  
    std::string describe() const override
    {
      return "Contains: " + ::Catch::Detail::stringify(m_comparator);
    }
  
    T const &m_comparator;
  };
  
  template<typename T>
  struct ContainsMatcher : MatcherBase<std::vector<T>>
  {
    ContainsMatcher(std::vector<T> const &comparator) : m_comparator(comparator)
    {}
  
    bool match(std::vector<T> const &v) const override
    {
      // !TBD: see note in EqualsMatcher
      if (m_comparator.size() > v.size())
        return false;
      for (auto const &comparator : m_comparator)
      {
        auto present = false;
        for (const auto &el : v)
        {
          if (el == comparator)
          {
            present = true;
            break;
          }
        }
        if (!present)
        {
          return false;
        }
      }
      return true;
    }
    std::string describe() const override
    {
      return "Contains: " + ::Catch::Detail::stringify(m_comparator);
    }
  
    std::vector<T> const &m_comparator;
  };
  
  template<typename T>
  struct EqualsMatcher : MatcherBase<std::vector<T>>
  {
    EqualsMatcher(std::vector<T> const &comparator) : m_comparator(comparator) {}
  
    bool match(std::vector<T> const &v) const override
    {
      // !TBD: This currently works if all elements can be compared using !=
      // - a more general approach would be via a compare template that defaults
      // to using !=. but could be specialised for, e.g. std::vector<T> etc
      // - then just call that directly
      if (m_comparator.size() != v.size())
        return false;
      for (std::size_t i = 0; i < v.size(); ++i)
        if (m_comparator[i] != v[i])
          return false;
      return true;
    }
    std::string describe() const override
    {
      return "Equals: " + ::Catch::Detail::stringify(m_comparator);
    }
    std::vector<T> const &m_comparator;
  };
  
  template<typename T>
  struct ApproxMatcher : MatcherBase<std::vector<T>>
  {
    ApproxMatcher(std::vector<T> const &comparator) : m_comparator(comparator) {}
  
    bool match(std::vector<T> const &v) const override
    {
      if (m_comparator.size() != v.size())
        return false;
      for (std::size_t i = 0; i < v.size(); ++i)
        if (m_comparator[i] != approx(v[i]))
          return false;
      return true;
    }
    std::string describe() const override
    {
      return "is approx: " + ::Catch::Detail::stringify(m_comparator);
    }
    template<typename = typename std::enable_if<
                 std::is_constructible<double, T>::value>::type>
    ApproxMatcher &epsilon(T const &newEpsilon)
    {
      approx.epsilon(newEpsilon);
      return *this;
    }
    template<typename = typename std::enable_if<
                 std::is_constructible<double, T>::value>::type>
    ApproxMatcher &margin(T const &newMargin)
    {
      approx.margin(newMargin);
      return *this;
    }
    template<typename = typename std::enable_if<
                 std::is_constructible<double, T>::value>::type>
    ApproxMatcher &scale(T const &newScale)
    {
      approx.scale(newScale);
      return *this;
    }
  
    std::vector<T> const &m_comparator;
    mutable Catch::Detail::Approx approx = Catch::Detail::Approx::custom();
  };
  
  template<typename T>
  struct UnorderedEqualsMatcher : MatcherBase<std::vector<T>>
  {
    UnorderedEqualsMatcher(std::vector<T> const &target) : m_target(target) {}
    bool match(std::vector<T> const &vec) const override
    {
      // Note: This is a reimplementation of std::is_permutation,
      //       because I don't want to include <algorithm> inside the common path
      if (m_target.size() != vec.size())
      {
        return false;
      }
      return std::is_permutation(m_target.begin(), m_target.end(), vec.begin());
    }
  
    std::string describe() const override
    {
      return "UnorderedEquals: " + ::Catch::Detail::stringify(m_target);
    }
  
  private:
    std::vector<T> const &m_target;
  };
  
  } // namespace Vector
  
  // The following functions create the actual matcher objects.
  // This allows the types to be inferred
  
  template<typename T>
  Vector::ContainsMatcher<T> Contains(std::vector<T> const &comparator)
  {
    return Vector::ContainsMatcher<T>(comparator);
  }
  
  template<typename T>
  Vector::ContainsElementMatcher<T> VectorContains(T const &comparator)
  {
    return Vector::ContainsElementMatcher<T>(comparator);
  }
  
  template<typename T>
  Vector::EqualsMatcher<T> Equals(std::vector<T> const &comparator)
  {
    return Vector::EqualsMatcher<T>(comparator);
  }
  
  template<typename T>
  Vector::ApproxMatcher<T> Approx(std::vector<T> const &comparator)
  {
    return Vector::ApproxMatcher<T>(comparator);
  }
  
  template<typename T>
  Vector::UnorderedEqualsMatcher<T> UnorderedEquals(std::vector<T> const &target)
  {
    return Vector::UnorderedEqualsMatcher<T>(target);
  }
  
  } // namespace Matchers
  } // namespace Catch
  
  // end catch_matchers_vector.h
  namespace Catch
  {
  template<typename ArgT, typename MatcherT>
  class MatchExpr : public ITransientExpression
  {
    ArgT const &m_arg;
    MatcherT m_matcher;
    StringRef m_matcherString;
  
  public:
    MatchExpr(ArgT const &arg, MatcherT const &matcher,
              StringRef const &matcherString)
        : ITransientExpression{true, matcher.match(arg)}, m_arg(arg),
          m_matcher(matcher), m_matcherString(matcherString)
    {}
  
    void streamReconstructedExpression(std::ostream &os) const override
    {
      auto matcherAsString = m_matcher.toString();
      os << Catch::Detail::stringify(m_arg) << ' ';
      if (matcherAsString == Detail::unprintableString)
        os << m_matcherString;
      else
        os << matcherAsString;
    }
  };
  
  using StringMatcher = Matchers::Impl::MatcherBase<std::string>;
  
  void handleExceptionMatchExpr(AssertionHandler &handler,
                                StringMatcher const &matcher,
                                StringRef const &matcherString);
  
  template<typename ArgT, typename MatcherT>
  auto makeMatchExpr(ArgT const &arg, MatcherT const &matcher,
                     StringRef const &matcherString) -> MatchExpr<ArgT, MatcherT>
  {
    return MatchExpr<ArgT, MatcherT>(arg, matcher, matcherString);
  }
  
  } // namespace Catch
  
  ///////////////////////////////////////////////////////////////////////////////
  #define INTERNAL_CHECK_THAT(macroName, matcher, resultDisposition, arg)       \
    do                                                                          \
    {                                                                           \
      Catch::AssertionHandler catchAssertionHandler(                            \
          macroName##_catch_sr, CATCH_INTERNAL_LINEINFO,                        \
          CATCH_INTERNAL_STRINGIFY(arg) ", " CATCH_INTERNAL_STRINGIFY(matcher), \
          resultDisposition);                                                   \
      INTERNAL_CATCH_TRY                                                        \
      {                                                                         \
        catchAssertionHandler.handleExpr(                                       \
            Catch::makeMatchExpr(arg, matcher, #matcher##_catch_sr));           \
      }                                                                         \
      INTERNAL_CATCH_CATCH(catchAssertionHandler)                               \
      INTERNAL_CATCH_REACT(catchAssertionHandler)                               \
    } while (false)
  
  ///////////////////////////////////////////////////////////////////////////////
  #define INTERNAL_CATCH_THROWS_MATCHES(macroName, exceptionType,              \
                                        resultDisposition, matcher, ...)       \
    do                                                                         \
    {                                                                          \
      Catch::AssertionHandler catchAssertionHandler(                           \
          macroName##_catch_sr, CATCH_INTERNAL_LINEINFO,                       \
          CATCH_INTERNAL_STRINGIFY(__VA_ARGS__) ", " CATCH_INTERNAL_STRINGIFY( \
              exceptionType) ", " CATCH_INTERNAL_STRINGIFY(matcher),           \
          resultDisposition);                                                  \
      if (catchAssertionHandler.allowThrows())                                 \
        try                                                                    \
        {                                                                      \
          static_cast<void>(__VA_ARGS__);                                      \
          catchAssertionHandler.handleUnexpectedExceptionNotThrown();          \
        }                                                                      \
        catch (exceptionType const &ex)                                        \
        {                                                                      \
          catchAssertionHandler.handleExpr(                                    \
              Catch::makeMatchExpr(ex, matcher, #matcher##_catch_sr));         \
        }                                                                      \
        catch (...)                                                            \
        {                                                                      \
          catchAssertionHandler.handleUnexpectedInflightException();           \
        }                                                                      \
      else                                                                     \
        catchAssertionHandler.handleThrowingCallSkipped();                     \
      INTERNAL_CATCH_REACT(catchAssertionHandler)                              \
    } while (false)
  
  // end catch_capture_matchers.h
  #endif
  // start catch_generators.hpp
  
  // start catch_interfaces_generatortracker.h
  
  #include <memory>
  
  namespace Catch
  {
  namespace Generators
  {
  class GeneratorUntypedBase
  {
  public:
    GeneratorUntypedBase() = default;
    virtual ~GeneratorUntypedBase();
    // Attempts to move the generator to the next element
    //
    // Returns true iff the move succeeded (and a valid element
    // can be retrieved).
    virtual bool next() = 0;
  };
  using GeneratorBasePtr = std::unique_ptr<GeneratorUntypedBase>;
  
  } // namespace Generators
  
  struct IGeneratorTracker
  {
    virtual ~IGeneratorTracker();
    virtual auto hasGenerator() const -> bool                                 = 0;
    virtual auto getGenerator() const -> Generators::GeneratorBasePtr const & = 0;
    virtual void setGenerator(Generators::GeneratorBasePtr &&generator)       = 0;
  };
  
  } // namespace Catch
  
  // end catch_interfaces_generatortracker.h
  // start catch_enforce.h
  
  #include <exception>
  
  namespace Catch
  {
  #if !defined(CATCH_CONFIG_DISABLE_EXCEPTIONS)
  template<typename Ex>
  [[noreturn]] void throw_exception(Ex const &e) { throw e; }
  #else // ^^ Exceptions are enabled //  Exceptions are disabled vv
  [[noreturn]] void throw_exception(std::exception const &e);
  #endif
  
      [[noreturn]] void throw_logic_error(std::string const &msg);
  [[noreturn]] void throw_domain_error(std::string const &msg);
  [[noreturn]] void throw_runtime_error(std::string const &msg);
  
  } // namespace Catch
  
  #define CATCH_MAKE_MSG(...) (Catch::ReusableStringStream() << __VA_ARGS__).str()
  
  #define CATCH_INTERNAL_ERROR(...)          \
    Catch::throw_logic_error(CATCH_MAKE_MSG( \
        CATCH_INTERNAL_LINEINFO << ": Internal Catch2 error: " << __VA_ARGS__))
  
  #define CATCH_ERROR(...) Catch::throw_domain_error(CATCH_MAKE_MSG(__VA_ARGS__))
  
  #define CATCH_RUNTIME_ERROR(...) \
    Catch::throw_runtime_error(CATCH_MAKE_MSG(__VA_ARGS__))
  
  #define CATCH_ENFORCE(condition, ...) \
    do                                  \
    {                                   \
      if (!(condition))                 \
        CATCH_ERROR(__VA_ARGS__);       \
    } while (false)
  
  // end catch_enforce.h
  #include <cassert>
  #include <memory>
  #include <vector>
  
  #include <exception>
  #include <utility>
  
  namespace Catch
  {
  class GeneratorException : public std::exception
  {
    const char *const m_msg = "";
  
  public:
    GeneratorException(const char *msg) : m_msg(msg) {}
  
    const char *what() const noexcept override final;
  };
  
  namespace Generators
  {
  // !TBD move this into its own location?
  namespace pf
  {
  template<typename T, typename... Args>
  std::unique_ptr<T> make_unique(Args &&... args)
  {
    return std::unique_ptr<T>(new T(std::forward<Args>(args)...));
  }
  } // namespace pf
  
  template<typename T>
  struct IGenerator : GeneratorUntypedBase
  {
    virtual ~IGenerator() = default;
  
    // Returns the current element of the generator
    //
    // \Precondition The generator is either freshly constructed,
    // or the last call to `next()` returned true
    virtual T const &get() const = 0;
    using type                   = T;
  };
  
  template<typename T>
  class SingleValueGenerator final : public IGenerator<T>
  {
    T m_value;
  
  public:
    SingleValueGenerator(T &&value) : m_value(std::move(value)) {}
  
    T const &get() const override { return m_value; }
    bool next() override { return false; }
  };
  
  template<typename T>
  class FixedValuesGenerator final : public IGenerator<T>
  {
    static_assert(
        !std::is_same<T, bool>::value,
        "FixedValuesGenerator does not support bools because of std::vector<bool>"
        "specialization, use SingleValue Generator instead.");
    std::vector<T> m_values;
    size_t m_idx = 0;
  
  public:
    FixedValuesGenerator(std::initializer_list<T> values) : m_values(values) {}
  
    T const &get() const override { return m_values[m_idx]; }
    bool next() override
    {
      ++m_idx;
      return m_idx < m_values.size();
    }
  };
  
  template<typename T>
  class GeneratorWrapper final
  {
    std::unique_ptr<IGenerator<T>> m_generator;
  
  public:
    GeneratorWrapper(std::unique_ptr<IGenerator<T>> generator)
        : m_generator(std::move(generator))
    {}
    T const &get() const { return m_generator->get(); }
    bool next() { return m_generator->next(); }
  };
  
  template<typename T>
  GeneratorWrapper<T> value(T &&value)
  {
    return GeneratorWrapper<T>(
        pf::make_unique<SingleValueGenerator<T>>(std::forward<T>(value)));
  }
  template<typename T>
  GeneratorWrapper<T> values(std::initializer_list<T> values)
  {
    return GeneratorWrapper<T>(pf::make_unique<FixedValuesGenerator<T>>(values));
  }
  
  template<typename T>
  class Generators : public IGenerator<T>
  {
    std::vector<GeneratorWrapper<T>> m_generators;
    size_t m_current = 0;
  
    void populate(GeneratorWrapper<T> &&generator)
    {
      m_generators.emplace_back(std::move(generator));
    }
    void populate(T &&val)
    {
      m_generators.emplace_back(value(std::forward<T>(val)));
    }
    template<typename U>
    void populate(U &&val)
    {
      populate(T(std::forward<U>(val)));
    }
    template<typename U, typename... Gs>
    void populate(U &&valueOrGenerator, Gs &&... moreGenerators)
    {
      populate(std::forward<U>(valueOrGenerator));
      populate(std::forward<Gs>(moreGenerators)...);
    }
  
  public:
    template<typename... Gs>
    Generators(Gs &&... moreGenerators)
    {
      m_generators.reserve(sizeof...(Gs));
      populate(std::forward<Gs>(moreGenerators)...);
    }
  
    T const &get() const override { return m_generators[m_current].get(); }
  
    bool next() override
    {
      if (m_current >= m_generators.size())
      {
        return false;
      }
      const bool current_status = m_generators[m_current].next();
      if (!current_status)
      {
        ++m_current;
      }
      return m_current < m_generators.size();
    }
  };
  
  template<typename... Ts>
  GeneratorWrapper<std::tuple<Ts...>> table(
      std::initializer_list<std::tuple<typename std::decay<Ts>::type...>> tuples)
  {
    return values<std::tuple<Ts...>>(tuples);
  }
  
  // Tag type to signal that a generator sequence should convert arguments to a
  // specific type
  template<typename T>
  struct as
  {};
  
  template<typename T, typename... Gs>
  auto makeGenerators(GeneratorWrapper<T> &&generator, Gs &&... moreGenerators)
      -> Generators<T>
  {
    return Generators<T>(std::move(generator),
                         std::forward<Gs>(moreGenerators)...);
  }
  template<typename T>
  auto makeGenerators(GeneratorWrapper<T> &&generator) -> Generators<T>
  {
    return Generators<T>(std::move(generator));
  }
  template<typename T, typename... Gs>
  auto makeGenerators(T &&val, Gs &&... moreGenerators) -> Generators<T>
  {
    return makeGenerators(value(std::forward<T>(val)),
                          std::forward<Gs>(moreGenerators)...);
  }
  template<typename T, typename U, typename... Gs>
  auto makeGenerators(as<T>, U &&val, Gs &&... moreGenerators) -> Generators<T>
  {
    return makeGenerators(value(T(std::forward<U>(val))),
                          std::forward<Gs>(moreGenerators)...);
  }
  
  auto acquireGeneratorTracker(SourceLineInfo const &lineInfo)
      -> IGeneratorTracker &;
  
  template<typename L>
  // Note: The type after -> is weird, because VS2015 cannot parse
  //       the expression used in the typedef inside, when it is in
  //       return type. Yeah.
  auto generate(SourceLineInfo const &lineInfo, L const &generatorExpression)
      -> decltype(std::declval<decltype(generatorExpression())>().get())
  {
    using UnderlyingType = typename decltype(generatorExpression())::type;
  
    IGeneratorTracker &tracker = acquireGeneratorTracker(lineInfo);
    if (!tracker.hasGenerator())
    {
      tracker.setGenerator(
          pf::make_unique<Generators<UnderlyingType>>(generatorExpression()));
    }
  
    auto const &generator =
        static_cast<IGenerator<UnderlyingType> const &>(*tracker.getGenerator());
    return generator.get();
  }
  
  } // namespace Generators
  } // namespace Catch
  
  #define GENERATE(...)                                       \
    Catch::Generators::generate(CATCH_INTERNAL_LINEINFO, [] { \
      using namespace Catch::Generators;                      \
      return makeGenerators(__VA_ARGS__);                     \
    }) // NOLINT(google-build-using-namespace)
  #define GENERATE_COPY(...)                                   \
    Catch::Generators::generate(CATCH_INTERNAL_LINEINFO, [=] { \
      using namespace Catch::Generators;                       \
      return makeGenerators(__VA_ARGS__);                      \
    }) // NOLINT(google-build-using-namespace)
  #define GENERATE_REF(...)                                    \
    Catch::Generators::generate(CATCH_INTERNAL_LINEINFO, [&] { \
      using namespace Catch::Generators;                       \
      return makeGenerators(__VA_ARGS__);                      \
    }) // NOLINT(google-build-using-namespace)
  
  // end catch_generators.hpp
  // start catch_generators_generic.hpp
  
  namespace Catch
  {
  namespace Generators
  {
  template<typename T>
  class TakeGenerator : public IGenerator<T>
  {
    GeneratorWrapper<T> m_generator;
    size_t m_returned = 0;
    size_t m_target;
  
  public:
    TakeGenerator(size_t target, GeneratorWrapper<T> &&generator)
        : m_generator(std::move(generator)), m_target(target)
    {
      assert(target != 0 && "Empty generators are not allowed");
    }
    T const &get() const override { return m_generator.get(); }
    bool next() override
    {
      ++m_returned;
      if (m_returned >= m_target)
      {
        return false;
      }
  
      const auto success = m_generator.next();
      // If the underlying generator does not contain enough values
      // then we cut short as well
      if (!success)
      {
        m_returned = m_target;
      }
      return success;
    }
  };
  
  template<typename T>
  GeneratorWrapper<T> take(size_t target, GeneratorWrapper<T> &&generator)
  {
    return GeneratorWrapper<T>(
        pf::make_unique<TakeGenerator<T>>(target, std::move(generator)));
  }
  
  template<typename T, typename Predicate>
  class FilterGenerator : public IGenerator<T>
  {
    GeneratorWrapper<T> m_generator;
    Predicate m_predicate;
  
  public:
    template<typename P = Predicate>
    FilterGenerator(P &&pred, GeneratorWrapper<T> &&generator)
        : m_generator(std::move(generator)), m_predicate(std::forward<P>(pred))
    {
      if (!m_predicate(m_generator.get()))
      {
        // It might happen that there are no values that pass the
        // filter. In that case we throw an exception.
        auto has_initial_value = next();
        if (!has_initial_value)
        {
          Catch::throw_exception(
              GeneratorException("No valid value found in filtered generator"));
        }
      }
    }
  
    T const &get() const override { return m_generator.get(); }
  
    bool next() override
    {
      bool success = m_generator.next();
      if (!success)
      {
        return false;
      }
      while (!m_predicate(m_generator.get()) &&
             (success = m_generator.next()) == true)
        ;
      return success;
    }
  };
  
  template<typename T, typename Predicate>
  GeneratorWrapper<T> filter(Predicate &&pred, GeneratorWrapper<T> &&generator)
  {
    return GeneratorWrapper<T>(std::unique_ptr<IGenerator<T>>(
        pf::make_unique<FilterGenerator<T, Predicate>>(
            std::forward<Predicate>(pred), std::move(generator))));
  }
  
  template<typename T>
  class RepeatGenerator : public IGenerator<T>
  {
    static_assert(!std::is_same<T, bool>::value,
                  "RepeatGenerator currently does not support bools"
                  "because of std::vector<bool> specialization");
    GeneratorWrapper<T> m_generator;
    mutable std::vector<T> m_returned;
    size_t m_target_repeats;
    size_t m_current_repeat = 0;
    size_t m_repeat_index   = 0;
  
  public:
    RepeatGenerator(size_t repeats, GeneratorWrapper<T> &&generator)
        : m_generator(std::move(generator)), m_target_repeats(repeats)
    {
      assert(m_target_repeats > 0 &&
             "Repeat generator must repeat at least once");
    }
  
    T const &get() const override
    {
      if (m_current_repeat == 0)
      {
        m_returned.push_back(m_generator.get());
        return m_returned.back();
      }
      return m_returned[m_repeat_index];
    }
  
    bool next() override
    {
      // There are 2 basic cases:
      // 1) We are still reading the generator
      // 2) We are reading our own cache
  
      // In the first case, we need to poke the underlying generator.
      // If it happily moves, we are left in that state, otherwise it is time to
      // start reading from our cache
      if (m_current_repeat == 0)
      {
        const auto success = m_generator.next();
        if (!success)
        {
          ++m_current_repeat;
        }
        return m_current_repeat < m_target_repeats;
      }
  
      // In the second case, we need to move indices forward and check that we
      // haven't run up against the end
      ++m_repeat_index;
      if (m_repeat_index == m_returned.size())
      {
        m_repeat_index = 0;
        ++m_current_repeat;
      }
      return m_current_repeat < m_target_repeats;
    }
  };
  
  template<typename T>
  GeneratorWrapper<T> repeat(size_t repeats, GeneratorWrapper<T> &&generator)
  {
    return GeneratorWrapper<T>(
        pf::make_unique<RepeatGenerator<T>>(repeats, std::move(generator)));
  }
  
  template<typename T, typename U, typename Func>
  class MapGenerator : public IGenerator<T>
  {
    // TBD: provide static assert for mapping function, for friendly error message
    GeneratorWrapper<U> m_generator;
    Func m_function;
    // To avoid returning dangling reference, we have to save the values
    T m_cache;
  
  public:
    template<typename F2 = Func>
    MapGenerator(F2 &&function, GeneratorWrapper<U> &&generator)
        : m_generator(std::move(generator)),
          m_function(std::forward<F2>(function)),
          m_cache(m_function(m_generator.get()))
    {}
  
    T const &get() const override { return m_cache; }
    bool next() override
    {
      const auto success = m_generator.next();
      if (success)
      {
        m_cache = m_function(m_generator.get());
      }
      return success;
    }
  };
  
  template<typename Func, typename U, typename T = FunctionReturnType<Func, U>>
  GeneratorWrapper<T> map(Func &&function, GeneratorWrapper<U> &&generator)
  {
    return GeneratorWrapper<T>(pf::make_unique<MapGenerator<T, U, Func>>(
        std::forward<Func>(function), std::move(generator)));
  }
  
  template<typename T, typename U, typename Func>
  GeneratorWrapper<T> map(Func &&function, GeneratorWrapper<U> &&generator)
  {
    return GeneratorWrapper<T>(pf::make_unique<MapGenerator<T, U, Func>>(
        std::forward<Func>(function), std::move(generator)));
  }
  
  template<typename T>
  class ChunkGenerator final : public IGenerator<std::vector<T>>
  {
    std::vector<T> m_chunk;
    size_t m_chunk_size;
    GeneratorWrapper<T> m_generator;
    bool m_used_up = false;
  
  public:
    ChunkGenerator(size_t size, GeneratorWrapper<T> generator)
        : m_chunk_size(size), m_generator(std::move(generator))
    {
      m_chunk.reserve(m_chunk_size);
      if (m_chunk_size != 0)
      {
        m_chunk.push_back(m_generator.get());
        for (size_t i = 1; i < m_chunk_size; ++i)
        {
          if (!m_generator.next())
          {
            Catch::throw_exception(GeneratorException(
                "Not enough values to initialize the first chunk"));
          }
          m_chunk.push_back(m_generator.get());
        }
      }
    }
    std::vector<T> const &get() const override { return m_chunk; }
    bool next() override
    {
      m_chunk.clear();
      for (size_t idx = 0; idx < m_chunk_size; ++idx)
      {
        if (!m_generator.next())
        {
          return false;
        }
        m_chunk.push_back(m_generator.get());
      }
      return true;
    }
  };
  
  template<typename T>
  GeneratorWrapper<std::vector<T>>
  chunk(size_t size, GeneratorWrapper<T> &&generator)
  {
    return GeneratorWrapper<std::vector<T>>(
        pf::make_unique<ChunkGenerator<T>>(size, std::move(generator)));
  }
  
  } // namespace Generators
  } // namespace Catch
  
  // end catch_generators_generic.hpp
  // start catch_generators_specific.hpp
  
  // start catch_context.h
  
  #include <memory>
  
  namespace Catch
  {
  struct IResultCapture;
  struct IRunner;
  struct IConfig;
  struct IMutableContext;
  
  using IConfigPtr = std::shared_ptr<IConfig const>;
  
  struct IContext
  {
    virtual ~IContext();
  
    virtual IResultCapture *getResultCapture()  = 0;
    virtual IRunner *getRunner()                = 0;
    virtual IConfigPtr const &getConfig() const = 0;
  };
  
  struct IMutableContext : IContext
  {
    virtual ~IMutableContext();
    virtual void setResultCapture(IResultCapture *resultCapture) = 0;
    virtual void setRunner(IRunner *runner)                      = 0;
    virtual void setConfig(IConfigPtr const &config)             = 0;
  
  private:
    static IMutableContext *currentContext;
    friend IMutableContext &getCurrentMutableContext();
    friend void cleanUpContext();
    static void createContext();
  };
  
  inline IMutableContext &getCurrentMutableContext()
  {
    if (!IMutableContext::currentContext)
      IMutableContext::createContext();
    // NOLINTNEXTLINE(clang-analyzer-core.uninitialized.UndefReturn)
    return *IMutableContext::currentContext;
  }
  
  inline IContext &getCurrentContext() { return getCurrentMutableContext(); }
  
  void cleanUpContext();
  
  class SimplePcg32;
  SimplePcg32 &rng();
  } // namespace Catch
  
  // end catch_context.h
  // start catch_interfaces_config.h
  
  // start catch_option.hpp
  
  namespace Catch
  {
  // An optional type
  template<typename T>
  class Option
  {
  public:
    Option() : nullableValue(nullptr) {}
    Option(T const &_value) : nullableValue(new (storage) T(_value)) {}
    Option(Option const &_other)
        : nullableValue(_other ? new (storage) T(*_other) : nullptr)
    {}
  
    ~Option() { reset(); }
  
    Option &operator=(Option const &_other)
    {
      if (&_other != this)
      {
        reset();
        if (_other)
          nullableValue = new (storage) T(*_other);
      }
      return *this;
    }
    Option &operator=(T const &_value)
    {
      reset();
      nullableValue = new (storage) T(_value);
      return *this;
    }
  
    void reset()
    {
      if (nullableValue)
        nullableValue->~T();
      nullableValue = nullptr;
    }
  
    T &operator*() { return *nullableValue; }
    T const &operator*() const { return *nullableValue; }
    T *operator->() { return nullableValue; }
    const T *operator->() const { return nullableValue; }
  
    T valueOr(T const &defaultValue) const
    {
      return nullableValue ? *nullableValue : defaultValue;
    }
  
    bool some() const { return nullableValue != nullptr; }
    bool none() const { return nullableValue == nullptr; }
  
    bool operator!() const { return nullableValue == nullptr; }
    explicit operator bool() const { return some(); }
  
  private:
    T *nullableValue;
    alignas(alignof(T)) char storage[sizeof(T)];
  };
  
  } // end namespace Catch
  
  // end catch_option.hpp
  #include <chrono>
  #include <iosfwd>
  #include <memory>
  #include <string>
  #include <vector>
  
  namespace Catch
  {
  enum class Verbosity
  {
    Quiet = 0,
    Normal,
    High
  };
  
  struct WarnAbout
  {
    enum What
    {
      Nothing      = 0x00,
      NoAssertions = 0x01,
      NoTests      = 0x02
    };
  };
  
  struct ShowDurations
  {
    enum OrNot
    {
      DefaultForReporter,
      Always,
      Never
    };
  };
  struct RunTests
  {
    enum InWhatOrder
    {
      InDeclarationOrder,
      InLexicographicalOrder,
      InRandomOrder
    };
  };
  struct UseColour
  {
    enum YesOrNo
    {
      Auto,
      Yes,
      No
    };
  };
  struct WaitForKeypress
  {
    enum When
    {
      Never,
      BeforeStart        = 1,
      BeforeExit         = 2,
      BeforeStartAndExit = BeforeStart | BeforeExit
    };
  };
  
  class TestSpec;
  
  struct IConfig : NonCopyable
  {
    virtual ~IConfig();
  
    virtual bool allowThrows() const                                 = 0;
    virtual std::ostream &stream() const                             = 0;
    virtual std::string name() const                                 = 0;
    virtual bool includeSuccessfulResults() const                    = 0;
    virtual bool shouldDebugBreak() const                            = 0;
    virtual bool warnAboutMissingAssertions() const                  = 0;
    virtual bool warnAboutNoTests() const                            = 0;
    virtual int abortAfter() const                                   = 0;
    virtual bool showInvisibles() const                              = 0;
    virtual ShowDurations::OrNot showDurations() const               = 0;
    virtual TestSpec const &testSpec() const                         = 0;
    virtual bool hasTestFilters() const                              = 0;
    virtual std::vector<std::string> const &getTestsOrTags() const   = 0;
    virtual RunTests::InWhatOrder runOrder() const                   = 0;
    virtual unsigned int rngSeed() const                             = 0;
    virtual UseColour::YesOrNo useColour() const                     = 0;
    virtual std::vector<std::string> const &getSectionsToRun() const = 0;
    virtual Verbosity verbosity() const                              = 0;
  
    virtual bool benchmarkNoAnalysis() const                      = 0;
    virtual int benchmarkSamples() const                          = 0;
    virtual double benchmarkConfidenceInterval() const            = 0;
    virtual unsigned int benchmarkResamples() const               = 0;
    virtual std::chrono::milliseconds benchmarkWarmupTime() const = 0;
  };
  
  using IConfigPtr = std::shared_ptr<IConfig const>;
  } // namespace Catch
  
  // end catch_interfaces_config.h
  // start catch_random_number_generator.h
  
  #include <cstdint>
  
  namespace Catch
  {
  // This is a simple implementation of C++11 Uniform Random Number
  // Generator. It does not provide all operators, because Catch2
  // does not use it, but it should behave as expected inside stdlib's
  // distributions.
  // The implementation is based on the PCG family (http://pcg-random.org)
  class SimplePcg32
  {
    using state_type = std::uint64_t;
  
  public:
    using result_type = std::uint32_t;
    static constexpr result_type(min)() { return 0; }
    static constexpr result_type(max)() { return static_cast<result_type>(-1); }
  
    // Provide some default initial state for the default constructor
    SimplePcg32() : SimplePcg32(0xed743cc4U) {}
  
    explicit SimplePcg32(result_type seed_);
  
    void seed(result_type seed_);
    void discard(uint64_t skip);
  
    result_type operator()();
  
  private:
    friend bool operator==(SimplePcg32 const &lhs, SimplePcg32 const &rhs);
    friend bool operator!=(SimplePcg32 const &lhs, SimplePcg32 const &rhs);
  
    // In theory we also need operator<< and operator>>
    // In practice we do not use them, so we will skip them for now
  
    std::uint64_t m_state;
    // This part of the state determines which "stream" of the numbers
    // is chosen -- we take it as a constant for Catch2, so we only
    // need to deal with seeding the main state.
    // Picked by reading 8 bytes from `/dev/random` :-)
    static const std::uint64_t s_inc = (0x13ed0cc53f939476ULL << 1ULL) | 1ULL;
  };
  
  } // end namespace Catch
  
  // end catch_random_number_generator.h
  #include <random>
  
  namespace Catch
  {
  namespace Generators
  {
  template<typename Float>
  class RandomFloatingGenerator final : public IGenerator<Float>
  {
    Catch::SimplePcg32 &m_rng;
    std::uniform_real_distribution<Float> m_dist;
    Float m_current_number;
  
  public:
    RandomFloatingGenerator(Float a, Float b) : m_rng(rng()), m_dist(a, b)
    {
      static_cast<void>(next());
    }
  
    Float const &get() const override { return m_current_number; }
    bool next() override
    {
      m_current_number = m_dist(m_rng);
      return true;
    }
  };
  
  template<typename Integer>
  class RandomIntegerGenerator final : public IGenerator<Integer>
  {
    Catch::SimplePcg32 &m_rng;
    std::uniform_int_distribution<Integer> m_dist;
    Integer m_current_number;
  
  public:
    RandomIntegerGenerator(Integer a, Integer b) : m_rng(rng()), m_dist(a, b)
    {
      static_cast<void>(next());
    }
  
    Integer const &get() const override { return m_current_number; }
    bool next() override
    {
      m_current_number = m_dist(m_rng);
      return true;
    }
  };
  
  // TODO: Ideally this would be also constrained against the various char types,
  //       but I don't expect users to run into that in practice.
  template<typename T>
  typename std::enable_if<std::is_integral<T>::value &&
                              !std::is_same<T, bool>::value,
                          GeneratorWrapper<T>>::type
  random(T a, T b)
  {
    return GeneratorWrapper<T>(pf::make_unique<RandomIntegerGenerator<T>>(a, b));
  }
  
  template<typename T>
  typename std::enable_if<std::is_floating_point<T>::value,
                          GeneratorWrapper<T>>::type
  random(T a, T b)
  {
    return GeneratorWrapper<T>(pf::make_unique<RandomFloatingGenerator<T>>(a, b));
  }
  
  template<typename T>
  class RangeGenerator final : public IGenerator<T>
  {
    T m_current;
    T m_end;
    T m_step;
    bool m_positive;
  
  public:
    RangeGenerator(T const &start, T const &end, T const &step)
        : m_current(start), m_end(end), m_step(step), m_positive(m_step > T(0))
    {
      assert(m_current != m_end && "Range start and end cannot be equal");
      assert(m_step != T(0) && "Step size cannot be zero");
      assert(((m_positive && m_current <= m_end) ||
              (!m_positive && m_current >= m_end)) &&
             "Step moves away from end");
    }
  
    RangeGenerator(T const &start, T const &end)
        : RangeGenerator(start, end, (start < end) ? T(1) : T(-1))
    {}
  
    T const &get() const override { return m_current; }
  
    bool next() override
    {
      m_current += m_step;
      return (m_positive) ? (m_current < m_end) : (m_current > m_end);
    }
  };
  
  template<typename T>
  GeneratorWrapper<T> range(T const &start, T const &end, T const &step)
  {
    static_assert(std::is_arithmetic<T>::value && !std::is_same<T, bool>::value,
                  "Type must be numeric");
    return GeneratorWrapper<T>(
        pf::make_unique<RangeGenerator<T>>(start, end, step));
  }
  
  template<typename T>
  GeneratorWrapper<T> range(T const &start, T const &end)
  {
    static_assert(std::is_integral<T>::value && !std::is_same<T, bool>::value,
                  "Type must be an integer");
    return GeneratorWrapper<T>(pf::make_unique<RangeGenerator<T>>(start, end));
  }
  
  template<typename T>
  class IteratorGenerator final : public IGenerator<T>
  {
    static_assert(!std::is_same<T, bool>::value,
                  "IteratorGenerator currently does not support bools"
                  "because of std::vector<bool> specialization");
  
    std::vector<T> m_elems;
    size_t m_current = 0;
  
  public:
    template<typename InputIterator, typename InputSentinel>
    IteratorGenerator(InputIterator first, InputSentinel last)
        : m_elems(first, last)
    {
      if (m_elems.empty())
      {
        Catch::throw_exception(
            GeneratorException("IteratorGenerator received no valid values"));
      }
    }
  
    T const &get() const override { return m_elems[m_current]; }
  
    bool next() override
    {
      ++m_current;
      return m_current != m_elems.size();
    }
  };
  
  template<typename InputIterator, typename InputSentinel,
           typename ResultType =
               typename std::iterator_traits<InputIterator>::value_type>
  GeneratorWrapper<ResultType> from_range(InputIterator from, InputSentinel to)
  {
    return GeneratorWrapper<ResultType>(
        pf::make_unique<IteratorGenerator<ResultType>>(from, to));
  }
  
  template<typename Container,
           typename ResultType = typename Container::value_type>
  GeneratorWrapper<ResultType> from_range(Container const &cnt)
  {
    return GeneratorWrapper<ResultType>(
        pf::make_unique<IteratorGenerator<ResultType>>(cnt.begin(), cnt.end()));
  }
  
  } // namespace Generators
  } // namespace Catch
  
  // end catch_generators_specific.hpp
  
  // These files are included here so the single_include script doesn't put them
  // in the conditionally compiled sections
  // start catch_test_case_info.h
  
  #include <memory>
  #include <string>
  #include <vector>
  
  #ifdef __clang__
  #pragma clang diagnostic push
  #pragma clang diagnostic ignored "-Wpadded"
  #endif
  
  namespace Catch
  {
  struct ITestInvoker;
  
  struct TestCaseInfo
  {
    enum SpecialProperties
    {
      None        = 0,
      IsHidden    = 1 << 1,
      ShouldFail  = 1 << 2,
      MayFail     = 1 << 3,
      Throws      = 1 << 4,
      NonPortable = 1 << 5,
      Benchmark   = 1 << 6
    };
  
    TestCaseInfo(std::string const &_name, std::string const &_className,
                 std::string const &_description,
                 std::vector<std::string> const &_tags,
                 SourceLineInfo const &_lineInfo);
  
    friend void
    setTags(TestCaseInfo &testCaseInfo, std::vector<std::string> tags);
  
    bool isHidden() const;
    bool throws() const;
    bool okToFail() const;
    bool expectedToFail() const;
  
    std::string tagsAsString() const;
  
    std::string name;
    std::string className;
    std::string description;
    std::vector<std::string> tags;
    std::vector<std::string> lcaseTags;
    SourceLineInfo lineInfo;
    SpecialProperties properties;
  };
  
  class TestCase : public TestCaseInfo
  {
  public:
    TestCase(ITestInvoker *testCase, TestCaseInfo &&info);
  
    TestCase withName(std::string const &_newName) const;
  
    void invoke() const;
  
    TestCaseInfo const &getTestCaseInfo() const;
  
    bool operator==(TestCase const &other) const;
    bool operator<(TestCase const &other) const;
  
  private:
    std::shared_ptr<ITestInvoker> test;
  };
  
  TestCase makeTestCase(ITestInvoker *testCase, std::string const &className,
                        NameAndTags const &nameAndTags,
                        SourceLineInfo const &lineInfo);
  } // namespace Catch
  
  #ifdef __clang__
  #pragma clang diagnostic pop
  #endif
  
  // end catch_test_case_info.h
  // start catch_interfaces_runner.h
  
  namespace Catch
  {
  struct IRunner
  {
    virtual ~IRunner();
    virtual bool aborting() const = 0;
  };
  } // namespace Catch
  
  // end catch_interfaces_runner.h
  
  #ifdef __OBJC__
  // start catch_objc.hpp
  
  #import <objc/runtime.h>
  
  #include <string>
  
  // NB. Any general catch headers included here must be included
  // in catch.hpp first to make sure they are included by the single
  // header for non obj-usage
  
  ///////////////////////////////////////////////////////////////////////////////
  // This protocol is really only here for (self) documenting purposes, since
  // all its methods are optional.
  @protocol OcFixture
  
  @optional
  
  - (void)setUp;
  - (void)tearDown;
  
  @end
  
  namespace Catch
  {
  class OcMethod : public ITestInvoker
  {
  public:
    OcMethod(Class cls, SEL sel) : m_cls(cls), m_sel(sel) {}
  
    virtual void invoke() const
    {
      id obj = [[m_cls alloc] init];
  
      performOptionalSelector(obj, @selector(setUp));
      performOptionalSelector(obj, m_sel);
      performOptionalSelector(obj, @selector(tearDown));
  
      arcSafeRelease(obj);
    }
  
  private:
    virtual ~OcMethod() {}
  
    Class m_cls;
    SEL m_sel;
  };
  
  namespace Detail
  {
  inline std::string getAnnotation(Class cls, std::string const &annotationName,
                                   std::string const &testCaseName)
  {
    NSString *selStr =
        [[NSString alloc] initWithFormat:@"Catch_%s_%s", annotationName.c_str(),
                                         testCaseName.c_str()];
    SEL sel = NSSelectorFromString(selStr);
    arcSafeRelease(selStr);
    id value = performOptionalSelector(cls, sel);
    if (value)
      return [(NSString *)value UTF8String];
    return "";
  }
  } // namespace Detail
  
  inline std::size_t registerTestMethods()
  {
    std::size_t noTestMethods = 0;
    int noClasses             = objc_getClassList(nullptr, 0);
  
    Class *classes =
        (CATCH_UNSAFE_UNRETAINED Class *)malloc(sizeof(Class) * noClasses);
    objc_getClassList(classes, noClasses);
  
    for (int c = 0; c < noClasses; c++)
    {
      Class cls = classes[c];
      {
        u_int count;
        Method *methods = class_copyMethodList(cls, &count);
        for (u_int m = 0; m < count; m++)
        {
          SEL selector           = method_getName(methods[m]);
          std::string methodName = sel_getName(selector);
          if (startsWith(methodName, "Catch_TestCase_"))
          {
            std::string testCaseName = methodName.substr(15);
            std::string name = Detail::getAnnotation(cls, "Name", testCaseName);
            std::string desc =
                Detail::getAnnotation(cls, "Description", testCaseName);
            const char *className = class_getName(cls);
  
            getMutableRegistryHub().registerTest(makeTestCase(
                new OcMethod(cls, selector), className,
                NameAndTags(name.c_str(), desc.c_str()), SourceLineInfo("", 0)));
            noTestMethods++;
          }
        }
        free(methods);
      }
    }
    return noTestMethods;
  }
  
  #if !defined(CATCH_CONFIG_DISABLE_MATCHERS)
  
  namespace Matchers
  {
  namespace Impl
  {
  namespace NSStringMatchers
  {
  struct StringHolder : MatcherBase<NSString *>
  {
    StringHolder(NSString *substr) : m_substr([substr copy]) {}
    StringHolder(StringHolder const &other) : m_substr([other.m_substr copy]) {}
    StringHolder() { arcSafeRelease(m_substr); }
  
    bool match(NSString *str) const override { return false; }
  
    NSString *CATCH_ARC_STRONG m_substr;
  };
  
  struct Equals : StringHolder
  {
    Equals(NSString *substr) : StringHolder(substr) {}
  
    bool match(NSString *str) const override
    {
      return (str != nil || m_substr == nil) && [str isEqualToString:m_substr];
    }
  
    std::string describe() const override
    {
      return "equals string: " + Catch::Detail::stringify(m_substr);
    }
  };
  
  struct Contains : StringHolder
  {
    Contains(NSString *substr) : StringHolder(substr) {}
  
    bool match(NSString *str) const override
    {
      return (str != nil || m_substr == nil) &&
             [str rangeOfString:m_substr].location != NSNotFound;
    }
  
    std::string describe() const override
    {
      return "contains string: " + Catch::Detail::stringify(m_substr);
    }
  };
  
  struct StartsWith : StringHolder
  {
    StartsWith(NSString *substr) : StringHolder(substr) {}
  
    bool match(NSString *str) const override
    {
      return (str != nil || m_substr == nil) &&
             [str rangeOfString:m_substr].location == 0;
    }
  
    std::string describe() const override
    {
      return "starts with: " + Catch::Detail::stringify(m_substr);
    }
  };
  struct EndsWith : StringHolder
  {
    EndsWith(NSString *substr) : StringHolder(substr) {}
  
    bool match(NSString *str) const override
    {
      return (str != nil || m_substr == nil) &&
             [str rangeOfString:m_substr].location ==
                 [str length] - [m_substr length];
    }
  
    std::string describe() const override
    {
      return "ends with: " + Catch::Detail::stringify(m_substr);
    }
  };
  
  } // namespace NSStringMatchers
  } // namespace Impl
  
  inline Impl::NSStringMatchers::Equals Equals(NSString *substr)
  {
    return Impl::NSStringMatchers::Equals(substr);
  }
  
  inline Impl::NSStringMatchers::Contains Contains(NSString *substr)
  {
    return Impl::NSStringMatchers::Contains(substr);
  }
  
  inline Impl::NSStringMatchers::StartsWith StartsWith(NSString *substr)
  {
    return Impl::NSStringMatchers::StartsWith(substr);
  }
  
  inline Impl::NSStringMatchers::EndsWith EndsWith(NSString *substr)
  {
    return Impl::NSStringMatchers::EndsWith(substr);
  }
  
  } // namespace Matchers
  
  using namespace Matchers;
  
  #endif // CATCH_CONFIG_DISABLE_MATCHERS
  
  } // namespace Catch
  
  ///////////////////////////////////////////////////////////////////////////////
  #define OC_MAKE_UNIQUE_NAME(root, uniqueSuffix) root##uniqueSuffix
  #define OC_TEST_CASE2(name, desc, uniqueSuffix)                           \
    +(NSString *)OC_MAKE_UNIQUE_NAME(Catch_Name_test_, uniqueSuffix)        \
    {                                                                       \
      return @name;                                                         \
    }                                                                       \
    +(NSString *)OC_MAKE_UNIQUE_NAME(Catch_Description_test_, uniqueSuffix) \
    {                                                                       \
      return @desc;                                                         \
    }                                                                       \
    -(void)OC_MAKE_UNIQUE_NAME(Catch_TestCase_test_, uniqueSuffix)
  
  #define OC_TEST_CASE(name, desc) OC_TEST_CASE2(name, desc, __LINE__)
  
  // end catch_objc.hpp
  #endif
  
  // Benchmarking needs the externally-facing parts of reporters to work
  #if defined(CATCH_CONFIG_EXTERNAL_INTERFACES) || \
      defined(CATCH_CONFIG_ENABLE_BENCHMARKING)
  // start catch_external_interfaces.h
  
  // start catch_reporter_bases.hpp
  
  // start catch_interfaces_reporter.h
  
  // start catch_config.hpp
  
  // start catch_test_spec_parser.h
  
  #ifdef __clang__
  #pragma clang diagnostic push
  #pragma clang diagnostic ignored "-Wpadded"
  #endif
  
  // start catch_test_spec.h
  
  #ifdef __clang__
  #pragma clang diagnostic push
  #pragma clang diagnostic ignored "-Wpadded"
  #endif
  
  // start catch_wildcard_pattern.h
  
  namespace Catch
  {
  class WildcardPattern
  {
    enum WildcardPosition
    {
      NoWildcard         = 0,
      WildcardAtStart    = 1,
      WildcardAtEnd      = 2,
      WildcardAtBothEnds = WildcardAtStart | WildcardAtEnd
    };
  
  public:
    WildcardPattern(std::string const &pattern,
                    CaseSensitive::Choice caseSensitivity);
    virtual ~WildcardPattern() = default;
    virtual bool matches(std::string const &str) const;
  
  private:
    std::string normaliseString(std::string const &str) const;
    CaseSensitive::Choice m_caseSensitivity;
    WildcardPosition m_wildcard = NoWildcard;
    std::string m_pattern;
  };
  } // namespace Catch
  
  // end catch_wildcard_pattern.h
  #include <memory>
  #include <string>
  #include <vector>
  
  namespace Catch
  {
  struct IConfig;
  
  class TestSpec
  {
    class Pattern
    {
    public:
      explicit Pattern(std::string const &name);
      virtual ~Pattern();
      virtual bool matches(TestCaseInfo const &testCase) const = 0;
      std::string const &name() const;
  
    private:
      std::string const m_name;
    };
    using PatternPtr = std::shared_ptr<Pattern>;
  
    class NamePattern : public Pattern
    {
    public:
      explicit NamePattern(std::string const &name,
                           std::string const &filterString);
      bool matches(TestCaseInfo const &testCase) const override;
  
    private:
      WildcardPattern m_wildcardPattern;
    };
  
    class TagPattern : public Pattern
    {
    public:
      explicit TagPattern(std::string const &tag,
                          std::string const &filterString);
      bool matches(TestCaseInfo const &testCase) const override;
  
    private:
      std::string m_tag;
    };
  
    class ExcludedPattern : public Pattern
    {
    public:
      explicit ExcludedPattern(PatternPtr const &underlyingPattern);
      bool matches(TestCaseInfo const &testCase) const override;
  
    private:
      PatternPtr m_underlyingPattern;
    };
  
    struct Filter
    {
      std::vector<PatternPtr> m_patterns;
  
      bool matches(TestCaseInfo const &testCase) const;
      std::string name() const;
    };
  
  public:
    struct FilterMatch
    {
      std::string name;
      std::vector<TestCase const *> tests;
    };
    using Matches       = std::vector<FilterMatch>;
    using vectorStrings = std::vector<std::string>;
  
    bool hasFilters() const;
    bool matches(TestCaseInfo const &testCase) const;
    Matches matchesByFilter(std::vector<TestCase> const &testCases,
                            IConfig const &config) const;
    const vectorStrings &getInvalidArgs() const;
  
  private:
    std::vector<Filter> m_filters;
    std::vector<std::string> m_invalidArgs;
    friend class TestSpecParser;
  };
  } // namespace Catch
  
  #ifdef __clang__
  #pragma clang diagnostic pop
  #endif
  
  // end catch_test_spec.h
  // start catch_interfaces_tag_alias_registry.h
  
  #include <string>
  
  namespace Catch
  {
  struct TagAlias;
  
  struct ITagAliasRegistry
  {
    virtual ~ITagAliasRegistry();
    // Nullptr if not present
    virtual TagAlias const *find(std::string const &alias) const = 0;
    virtual std::string
    expandAliases(std::string const &unexpandedTestSpec) const = 0;
  
    static ITagAliasRegistry const &get();
  };
  
  } // end namespace Catch
  
  // end catch_interfaces_tag_alias_registry.h
  namespace Catch
  {
  class TestSpecParser
  {
    enum Mode
    {
      None,
      Name,
      QuotedName,
      Tag,
      EscapedName
    };
    Mode m_mode                  = None;
    Mode lastMode                = None;
    bool m_exclusion             = false;
    std::size_t m_pos            = 0;
    std::size_t m_realPatternPos = 0;
    std::string m_arg;
    std::string m_substring;
    std::string m_patternName;
    std::vector<std::size_t> m_escapeChars;
    TestSpec::Filter m_currentFilter;
    TestSpec m_testSpec;
    ITagAliasRegistry const *m_tagAliases = nullptr;
  
  public:
    TestSpecParser(ITagAliasRegistry const &tagAliases);
  
    TestSpecParser &parse(std::string const &arg);
    TestSpec testSpec();
  
  private:
    bool visitChar(char c);
    void startNewMode(Mode mode);
    bool processNoneChar(char c);
    void processNameChar(char c);
    bool processOtherChar(char c);
    void endMode();
    void escape();
    bool isControlChar(char c) const;
    void saveLastMode();
    void revertBackToLastMode();
    void addFilter();
    bool separate();
  
    // Handles common preprocessing of the pattern for name/tag patterns
    std::string preprocessPattern();
    // Adds the current pattern as a test name
    void addNamePattern();
    // Adds the current pattern as a tag
    void addTagPattern();
  
    inline void addCharToPattern(char c)
    {
      m_substring += c;
      m_patternName += c;
      m_realPatternPos++;
    }
  };
  TestSpec parseTestSpec(std::string const &arg);
  
  } // namespace Catch
  
  #ifdef __clang__
  #pragma clang diagnostic pop
  #endif
  
  // end catch_test_spec_parser.h
  // Libstdc++ doesn't like incomplete classes for unique_ptr
  
  #include <memory>
  #include <string>
  #include <vector>
  
  #ifndef CATCH_CONFIG_CONSOLE_WIDTH
  #define CATCH_CONFIG_CONSOLE_WIDTH 80
  #endif
  
  namespace Catch
  {
  struct IStream;
  
  struct ConfigData
  {
    bool listTests         = false;
    bool listTags          = false;
    bool listReporters     = false;
    bool listTestNamesOnly = false;
  
    bool showSuccessfulTests = false;
    bool shouldDebugBreak    = false;
    bool noThrow             = false;
    bool showHelp            = false;
    bool showInvisibles      = false;
    bool filenamesAsTags     = false;
    bool libIdentify         = false;
  
    int abortAfter       = -1;
    unsigned int rngSeed = 0;
  
    bool benchmarkNoAnalysis                           = false;
    unsigned int benchmarkSamples                      = 100;
    double benchmarkConfidenceInterval                 = 0.95;
    unsigned int benchmarkResamples                    = 100000;
    std::chrono::milliseconds::rep benchmarkWarmupTime = 100;
  
    Verbosity verbosity                   = Verbosity::Normal;
    WarnAbout::What warnings              = WarnAbout::Nothing;
    ShowDurations::OrNot showDurations    = ShowDurations::DefaultForReporter;
    RunTests::InWhatOrder runOrder        = RunTests::InDeclarationOrder;
    UseColour::YesOrNo useColour          = UseColour::Auto;
    WaitForKeypress::When waitForKeypress = WaitForKeypress::Never;
  
    std::string outputFilename;
    std::string name;
    std::string processName;
  #ifndef CATCH_CONFIG_DEFAULT_REPORTER
  #define CATCH_CONFIG_DEFAULT_REPORTER "console"
  #endif
    std::string reporterName = CATCH_CONFIG_DEFAULT_REPORTER;
  #undef CATCH_CONFIG_DEFAULT_REPORTER
  
    std::vector<std::string> testsOrTags;
    std::vector<std::string> sectionsToRun;
  };
  
  class Config : public IConfig
  {
  public:
    Config() = default;
    Config(ConfigData const &data);
    virtual ~Config() = default;
  
    std::string const &getFilename() const;
  
    bool listTests() const;
    bool listTestNamesOnly() const;
    bool listTags() const;
    bool listReporters() const;
  
    std::string getProcessName() const;
    std::string const &getReporterName() const;
  
    std::vector<std::string> const &getTestsOrTags() const override;
    std::vector<std::string> const &getSectionsToRun() const override;
  
    TestSpec const &testSpec() const override;
    bool hasTestFilters() const override;
  
    bool showHelp() const;
  
    // IConfig interface
    bool allowThrows() const override;
    std::ostream &stream() const override;
    std::string name() const override;
    bool includeSuccessfulResults() const override;
    bool warnAboutMissingAssertions() const override;
    bool warnAboutNoTests() const override;
    ShowDurations::OrNot showDurations() const override;
    RunTests::InWhatOrder runOrder() const override;
    unsigned int rngSeed() const override;
    UseColour::YesOrNo useColour() const override;
    bool shouldDebugBreak() const override;
    int abortAfter() const override;
    bool showInvisibles() const override;
    Verbosity verbosity() const override;
    bool benchmarkNoAnalysis() const override;
    int benchmarkSamples() const override;
    double benchmarkConfidenceInterval() const override;
    unsigned int benchmarkResamples() const override;
    std::chrono::milliseconds benchmarkWarmupTime() const override;
  
  private:
    IStream const *openStream();
    ConfigData m_data;
  
    std::unique_ptr<IStream const> m_stream;
    TestSpec m_testSpec;
    bool m_hasTestFilters = false;
  };
  
  } // end namespace Catch
  
  // end catch_config.hpp
  // start catch_assertionresult.h
  
  #include <string>
  
  namespace Catch
  {
  struct AssertionResultData
  {
    AssertionResultData() = delete;
  
    AssertionResultData(ResultWas::OfType _resultType,
                        LazyExpression const &_lazyExpression);
  
    std::string message;
    mutable std::string reconstructedExpression;
    LazyExpression lazyExpression;
    ResultWas::OfType resultType;
  
    std::string reconstructExpression() const;
  };
  
  class AssertionResult
  {
  public:
    AssertionResult() = delete;
    AssertionResult(AssertionInfo const &info, AssertionResultData const &data);
  
    bool isOk() const;
    bool succeeded() const;
    ResultWas::OfType getResultType() const;
    bool hasExpression() const;
    bool hasMessage() const;
    std::string getExpression() const;
    std::string getExpressionInMacro() const;
    bool hasExpandedExpression() const;
    std::string getExpandedExpression() const;
    std::string getMessage() const;
    SourceLineInfo getSourceInfo() const;
    StringRef getTestMacroName() const;
  
    // protected:
    AssertionInfo m_info;
    AssertionResultData m_resultData;
  };
  
  } // end namespace Catch
  
  // end catch_assertionresult.h
  #if defined(CATCH_CONFIG_ENABLE_BENCHMARKING)
  // start catch_estimate.hpp
  
  // Statistics estimates
  
  namespace Catch
  {
  namespace Benchmark
  {
  template<typename Duration>
  struct Estimate
  {
    Duration point;
    Duration lower_bound;
    Duration upper_bound;
    double confidence_interval;
  
    template<typename Duration2>
    operator Estimate<Duration2>() const
    {
      return {point, lower_bound, upper_bound, confidence_interval};
    }
  };
  } // namespace Benchmark
  } // namespace Catch
  
  // end catch_estimate.hpp
  // start catch_outlier_classification.hpp
  
  // Outlier information
  
  namespace Catch
  {
  namespace Benchmark
  {
  struct OutlierClassification
  {
    int samples_seen = 0;
    int low_severe   = 0; // more than 3 times IQR below Q1
    int low_mild     = 0; // 1.5 to 3 times IQR below Q1
    int high_mild    = 0; // 1.5 to 3 times IQR above Q3
    int high_severe  = 0; // more than 3 times IQR above Q3
  
    int total() const { return low_severe + low_mild + high_mild + high_severe; }
  };
  } // namespace Benchmark
  } // namespace Catch
  
  // end catch_outlier_classification.hpp
  #endif // CATCH_CONFIG_ENABLE_BENCHMARKING
  
  #include <algorithm>
  #include <iosfwd>
  #include <map>
  #include <memory>
  #include <set>
  #include <string>
  
  namespace Catch
  {
  struct ReporterConfig
  {
    explicit ReporterConfig(IConfigPtr const &_fullConfig);
  
    ReporterConfig(IConfigPtr const &_fullConfig, std::ostream &_stream);
  
    std::ostream &stream() const;
    IConfigPtr fullConfig() const;
  
  private:
    std::ostream *m_stream;
    IConfigPtr m_fullConfig;
  };
  
  struct ReporterPreferences
  {
    bool shouldRedirectStdOut      = false;
    bool shouldReportAllAssertions = false;
  };
  
  template<typename T>
  struct LazyStat : Option<T>
  {
    LazyStat &operator=(T const &_value)
    {
      Option<T>::operator=(_value);
      used               = false;
      return *this;
    }
    void reset()
    {
      Option<T>::reset();
      used = false;
    }
    bool used = false;
  };
  
  struct TestRunInfo
  {
    TestRunInfo(std::string const &_name);
    std::string name;
  };
  struct GroupInfo
  {
    GroupInfo(std::string const &_name, std::size_t _groupIndex,
              std::size_t _groupsCount);
  
    std::string name;
    std::size_t groupIndex;
    std::size_t groupsCounts;
  };
  
  struct AssertionStats
  {
    AssertionStats(AssertionResult const &_assertionResult,
                   std::vector<MessageInfo> const &_infoMessages,
                   Totals const &_totals);
  
    AssertionStats(AssertionStats const &) = default;
    AssertionStats(AssertionStats &&)      = default;
    AssertionStats &operator=(AssertionStats const &) = delete;
    AssertionStats &operator=(AssertionStats &&) = delete;
    virtual ~AssertionStats();
  
    AssertionResult assertionResult;
    std::vector<MessageInfo> infoMessages;
    Totals totals;
  };
  
  struct SectionStats
  {
    SectionStats(SectionInfo const &_sectionInfo, Counts const &_assertions,
                 double _durationInSeconds, bool _missingAssertions);
    SectionStats(SectionStats const &) = default;
    SectionStats(SectionStats &&)      = default;
    SectionStats &operator=(SectionStats const &) = default;
    SectionStats &operator=(SectionStats &&) = default;
    virtual ~SectionStats();
  
    SectionInfo sectionInfo;
    Counts assertions;
    double durationInSeconds;
    bool missingAssertions;
  };
  
  struct TestCaseStats
  {
    TestCaseStats(TestCaseInfo const &_testInfo, Totals const &_totals,
                  std::string const &_stdOut, std::string const &_stdErr,
                  bool _aborting);
  
    TestCaseStats(TestCaseStats const &) = default;
    TestCaseStats(TestCaseStats &&)      = default;
    TestCaseStats &operator=(TestCaseStats const &) = default;
    TestCaseStats &operator=(TestCaseStats &&) = default;
    virtual ~TestCaseStats();
  
    TestCaseInfo testInfo;
    Totals totals;
    std::string stdOut;
    std::string stdErr;
    bool aborting;
  };
  
  struct TestGroupStats
  {
    TestGroupStats(GroupInfo const &_groupInfo, Totals const &_totals,
                   bool _aborting);
    TestGroupStats(GroupInfo const &_groupInfo);
  
    TestGroupStats(TestGroupStats const &) = default;
    TestGroupStats(TestGroupStats &&)      = default;
    TestGroupStats &operator=(TestGroupStats const &) = default;
    TestGroupStats &operator=(TestGroupStats &&) = default;
    virtual ~TestGroupStats();
  
    GroupInfo groupInfo;
    Totals totals;
    bool aborting;
  };
  
  struct TestRunStats
  {
    TestRunStats(TestRunInfo const &_runInfo, Totals const &_totals,
                 bool _aborting);
  
    TestRunStats(TestRunStats const &) = default;
    TestRunStats(TestRunStats &&)      = default;
    TestRunStats &operator=(TestRunStats const &) = default;
    TestRunStats &operator=(TestRunStats &&) = default;
    virtual ~TestRunStats();
  
    TestRunInfo runInfo;
    Totals totals;
    bool aborting;
  };
  
  #if defined(CATCH_CONFIG_ENABLE_BENCHMARKING)
  struct BenchmarkInfo
  {
    std::string name;
    double estimatedDuration;
    int iterations;
    int samples;
    unsigned int resamples;
    double clockResolution;
    double clockCost;
  };
  
  template<class Duration>
  struct BenchmarkStats
  {
    BenchmarkInfo info;
  
    std::vector<Duration> samples;
    Benchmark::Estimate<Duration> mean;
    Benchmark::Estimate<Duration> standardDeviation;
    Benchmark::OutlierClassification outliers;
    double outlierVariance;
  
    template<typename Duration2>
    operator BenchmarkStats<Duration2>() const
    {
      std::vector<Duration2> samples2;
      samples2.reserve(samples.size());
      std::transform(samples.begin(), samples.end(), std::back_inserter(samples2),
                     [](Duration d) { return Duration2(d); });
      return {
          info,     std::move(samples2), mean, standardDeviation,
          outliers, outlierVariance,
      };
    }
  };
  #endif // CATCH_CONFIG_ENABLE_BENCHMARKING
  
  struct IStreamingReporter
  {
    virtual ~IStreamingReporter() = default;
  
    // Implementing class must also provide the following static methods:
    // static std::string getDescription();
    // static std::set<Verbosity> getSupportedVerbosities()
  
    virtual ReporterPreferences getPreferences() const = 0;
  
    virtual void noMatchingTestCases(std::string const &spec) = 0;
  
    virtual void reportInvalidArguments(std::string const &) {}
  
    virtual void testRunStarting(TestRunInfo const &testRunInfo) = 0;
    virtual void testGroupStarting(GroupInfo const &groupInfo)   = 0;
  
    virtual void testCaseStarting(TestCaseInfo const &testInfo)  = 0;
    virtual void sectionStarting(SectionInfo const &sectionInfo) = 0;
  
  #if defined(CATCH_CONFIG_ENABLE_BENCHMARKING)
    virtual void benchmarkPreparing(std::string const &) {}
    virtual void benchmarkStarting(BenchmarkInfo const &) {}
    virtual void benchmarkEnded(BenchmarkStats<> const &) {}
    virtual void benchmarkFailed(std::string const &) {}
  #endif // CATCH_CONFIG_ENABLE_BENCHMARKING
  
    virtual void assertionStarting(AssertionInfo const &assertionInfo) = 0;
  
    // The return value indicates if the messages buffer should be cleared:
    virtual bool assertionEnded(AssertionStats const &assertionStats) = 0;
  
    virtual void sectionEnded(SectionStats const &sectionStats)       = 0;
    virtual void testCaseEnded(TestCaseStats const &testCaseStats)    = 0;
    virtual void testGroupEnded(TestGroupStats const &testGroupStats) = 0;
    virtual void testRunEnded(TestRunStats const &testRunStats)       = 0;
  
    virtual void skipTest(TestCaseInfo const &testInfo) = 0;
  
    // Default empty implementation provided
    virtual void fatalErrorEncountered(StringRef name);
  
    virtual bool isMulti() const;
  };
  using IStreamingReporterPtr = std::unique_ptr<IStreamingReporter>;
  
  struct IReporterFactory
  {
    virtual ~IReporterFactory();
    virtual IStreamingReporterPtr create(ReporterConfig const &config) const = 0;
    virtual std::string getDescription() const                               = 0;
  };
  using IReporterFactoryPtr = std::shared_ptr<IReporterFactory>;
  
  struct IReporterRegistry
  {
    using FactoryMap = std::map<std::string, IReporterFactoryPtr>;
    using Listeners  = std::vector<IReporterFactoryPtr>;
  
    virtual ~IReporterRegistry();
    virtual IStreamingReporterPtr
    create(std::string const &name, IConfigPtr const &config) const = 0;
    virtual FactoryMap const &getFactories() const                  = 0;
    virtual Listeners const &getListeners() const                   = 0;
  };
  
  } // end namespace Catch
  
  // end catch_interfaces_reporter.h
  #include <algorithm>
  #include <cassert>
  #include <cfloat>
  #include <cstdio>
  #include <cstring>
  #include <memory>
  #include <ostream>
  
  namespace Catch
  {
  void prepareExpandedExpression(AssertionResult &result);
  
  // Returns double formatted as %.3f (format expected on output)
  std::string getFormattedDuration(double duration);
  
  std::string serializeFilters(std::vector<std::string> const &container);
  
  template<typename DerivedT>
  struct StreamingReporterBase : IStreamingReporter
  {
    StreamingReporterBase(ReporterConfig const &_config)
        : m_config(_config.fullConfig()), stream(_config.stream())
    {
      m_reporterPrefs.shouldRedirectStdOut = false;
      if (!DerivedT::getSupportedVerbosities().count(m_config->verbosity()))
        CATCH_ERROR("Verbosity level not supported by this reporter");
    }
  
    ReporterPreferences getPreferences() const override
    {
      return m_reporterPrefs;
    }
  
    static std::set<Verbosity> getSupportedVerbosities()
    {
      return {Verbosity::Normal};
    }
  
    ~StreamingReporterBase() override = default;
  
    void noMatchingTestCases(std::string const &) override {}
  
    void reportInvalidArguments(std::string const &) override {}
  
    void testRunStarting(TestRunInfo const &_testRunInfo) override
    {
      currentTestRunInfo = _testRunInfo;
    }
  
    void testGroupStarting(GroupInfo const &_groupInfo) override
    {
      currentGroupInfo = _groupInfo;
    }
  
    void testCaseStarting(TestCaseInfo const &_testInfo) override
    {
      currentTestCaseInfo = _testInfo;
    }
    void sectionStarting(SectionInfo const &_sectionInfo) override
    {
      m_sectionStack.push_back(_sectionInfo);
    }
  
    void sectionEnded(SectionStats const & /* _sectionStats */) override
    {
      m_sectionStack.pop_back();
    }
    void testCaseEnded(TestCaseStats const & /* _testCaseStats */) override
    {
      currentTestCaseInfo.reset();
    }
    void testGroupEnded(TestGroupStats const & /* _testGroupStats */) override
    {
      currentGroupInfo.reset();
    }
    void testRunEnded(TestRunStats const & /* _testRunStats */) override
    {
      currentTestCaseInfo.reset();
      currentGroupInfo.reset();
      currentTestRunInfo.reset();
    }
  
    void skipTest(TestCaseInfo const &) override
    {
      // Don't do anything with this by default.
      // It can optionally be overridden in the derived class.
    }
  
    IConfigPtr m_config;
    std::ostream &stream;
  
    LazyStat<TestRunInfo> currentTestRunInfo;
    LazyStat<GroupInfo> currentGroupInfo;
    LazyStat<TestCaseInfo> currentTestCaseInfo;
  
    std::vector<SectionInfo> m_sectionStack;
    ReporterPreferences m_reporterPrefs;
  };
  
  template<typename DerivedT>
  struct CumulativeReporterBase : IStreamingReporter
  {
    template<typename T, typename ChildNodeT>
    struct Node
    {
      explicit Node(T const &_value) : value(_value) {}
      virtual ~Node() {}
  
      using ChildNodes = std::vector<std::shared_ptr<ChildNodeT>>;
      T value;
      ChildNodes children;
    };
    struct SectionNode
    {
      explicit SectionNode(SectionStats const &_stats) : stats(_stats) {}
      virtual ~SectionNode() = default;
  
      bool operator==(SectionNode const &other) const
      {
        return stats.sectionInfo.lineInfo == other.stats.sectionInfo.lineInfo;
      }
      bool operator==(std::shared_ptr<SectionNode> const &other) const
      {
        return operator==(*other);
      }
  
      SectionStats stats;
      using ChildSections = std::vector<std::shared_ptr<SectionNode>>;
      using Assertions    = std::vector<AssertionStats>;
      ChildSections childSections;
      Assertions assertions;
      std::string stdOut;
      std::string stdErr;
    };
  
    struct BySectionInfo
    {
      BySectionInfo(SectionInfo const &other) : m_other(other) {}
      BySectionInfo(BySectionInfo const &other) : m_other(other.m_other) {}
      bool operator()(std::shared_ptr<SectionNode> const &node) const
      {
        return ((node->stats.sectionInfo.name == m_other.name) &&
                (node->stats.sectionInfo.lineInfo == m_other.lineInfo));
      }
      void operator=(BySectionInfo const &) = delete;
  
    private:
      SectionInfo const &m_other;
    };
  
    using TestCaseNode  = Node<TestCaseStats, SectionNode>;
    using TestGroupNode = Node<TestGroupStats, TestCaseNode>;
    using TestRunNode   = Node<TestRunStats, TestGroupNode>;
  
    CumulativeReporterBase(ReporterConfig const &_config)
        : m_config(_config.fullConfig()), stream(_config.stream())
    {
      m_reporterPrefs.shouldRedirectStdOut = false;
      if (!DerivedT::getSupportedVerbosities().count(m_config->verbosity()))
        CATCH_ERROR("Verbosity level not supported by this reporter");
    }
    ~CumulativeReporterBase() override = default;
  
    ReporterPreferences getPreferences() const override
    {
      return m_reporterPrefs;
    }
  
    static std::set<Verbosity> getSupportedVerbosities()
    {
      return {Verbosity::Normal};
    }
  
    void testRunStarting(TestRunInfo const &) override {}
    void testGroupStarting(GroupInfo const &) override {}
  
    void testCaseStarting(TestCaseInfo const &) override {}
  
    void sectionStarting(SectionInfo const &sectionInfo) override
    {
      SectionStats incompleteStats(sectionInfo, Counts(), 0, false);
      std::shared_ptr<SectionNode> node;
      if (m_sectionStack.empty())
      {
        if (!m_rootSection)
          m_rootSection = std::make_shared<SectionNode>(incompleteStats);
        node = m_rootSection;
      }
      else
      {
        SectionNode &parentNode = *m_sectionStack.back();
        auto it                 = std::find_if(parentNode.childSections.begin(),
                               parentNode.childSections.end(),
                               BySectionInfo(sectionInfo));
        if (it == parentNode.childSections.end())
        {
          node = std::make_shared<SectionNode>(incompleteStats);
          parentNode.childSections.push_back(node);
        }
        else
          node = *it;
      }
      m_sectionStack.push_back(node);
      m_deepestSection = std::move(node);
    }
  
    void assertionStarting(AssertionInfo const &) override {}
  
    bool assertionEnded(AssertionStats const &assertionStats) override
    {
      assert(!m_sectionStack.empty());
      // AssertionResult holds a pointer to a temporary DecomposedExpression,
      // which getExpandedExpression() calls to build the expression string.
      // Our section stack copy of the assertionResult will likely outlive the
      // temporary, so it must be expanded or discarded now to avoid calling
      // a destroyed object later.
      prepareExpandedExpression(
          const_cast<AssertionResult &>(assertionStats.assertionResult));
      SectionNode &sectionNode = *m_sectionStack.back();
      sectionNode.assertions.push_back(assertionStats);
      return true;
    }
    void sectionEnded(SectionStats const &sectionStats) override
    {
      assert(!m_sectionStack.empty());
      SectionNode &node = *m_sectionStack.back();
      node.stats        = sectionStats;
      m_sectionStack.pop_back();
    }
    void testCaseEnded(TestCaseStats const &testCaseStats) override
    {
      auto node = std::make_shared<TestCaseNode>(testCaseStats);
      assert(m_sectionStack.size() == 0);
      node->children.push_back(m_rootSection);
      m_testCases.push_back(node);
      m_rootSection.reset();
  
      assert(m_deepestSection);
      m_deepestSection->stdOut = testCaseStats.stdOut;
      m_deepestSection->stdErr = testCaseStats.stdErr;
    }
    void testGroupEnded(TestGroupStats const &testGroupStats) override
    {
      auto node = std::make_shared<TestGroupNode>(testGroupStats);
      node->children.swap(m_testCases);
      m_testGroups.push_back(node);
    }
    void testRunEnded(TestRunStats const &testRunStats) override
    {
      auto node = std::make_shared<TestRunNode>(testRunStats);
      node->children.swap(m_testGroups);
      m_testRuns.push_back(node);
      testRunEndedCumulative();
    }
    virtual void testRunEndedCumulative() = 0;
  
    void skipTest(TestCaseInfo const &) override {}
  
    IConfigPtr m_config;
    std::ostream &stream;
    std::vector<AssertionStats> m_assertions;
    std::vector<std::vector<std::shared_ptr<SectionNode>>> m_sections;
    std::vector<std::shared_ptr<TestCaseNode>> m_testCases;
    std::vector<std::shared_ptr<TestGroupNode>> m_testGroups;
  
    std::vector<std::shared_ptr<TestRunNode>> m_testRuns;
  
    std::shared_ptr<SectionNode> m_rootSection;
    std::shared_ptr<SectionNode> m_deepestSection;
    std::vector<std::shared_ptr<SectionNode>> m_sectionStack;
    ReporterPreferences m_reporterPrefs;
  };
  
  template<char C>
  char const *getLineOfChars()
  {
    static char line[CATCH_CONFIG_CONSOLE_WIDTH] = {0};
    if (!*line)
    {
      std::memset(line, C, CATCH_CONFIG_CONSOLE_WIDTH - 1);
      line[CATCH_CONFIG_CONSOLE_WIDTH - 1] = 0;
    }
    return line;
  }
  
  struct TestEventListenerBase : StreamingReporterBase<TestEventListenerBase>
  {
    TestEventListenerBase(ReporterConfig const &_config);
  
    static std::set<Verbosity> getSupportedVerbosities();
  
    void assertionStarting(AssertionInfo const &) override;
    bool assertionEnded(AssertionStats const &) override;
  };
  
  } // end namespace Catch
  
  // end catch_reporter_bases.hpp
  // start catch_console_colour.h
  
  namespace Catch
  {
  struct Colour
  {
    enum Code
    {
      None = 0,
  
      White,
      Red,
      Green,
      Blue,
      Cyan,
      Yellow,
      Grey,
  
      Bright = 0x10,
  
      BrightRed    = Bright | Red,
      BrightGreen  = Bright | Green,
      LightGrey    = Bright | Grey,
      BrightWhite  = Bright | White,
      BrightYellow = Bright | Yellow,
  
      // By intention
      FileName              = LightGrey,
      Warning               = BrightYellow,
      ResultError           = BrightRed,
      ResultSuccess         = BrightGreen,
      ResultExpectedFailure = Warning,
  
      Error   = BrightRed,
      Success = Green,
  
      OriginalExpression      = Cyan,
      ReconstructedExpression = BrightYellow,
  
      SecondaryText = LightGrey,
      Headers       = White
    };
  
    // Use constructed object for RAII guard
    Colour(Code _colourCode);
    Colour(Colour &&other) noexcept;
    Colour &operator=(Colour &&other) noexcept;
    ~Colour();
  
    // Use static method for one-shot changes
    static void use(Code _colourCode);
  
  private:
    bool m_moved = false;
  };
  
  std::ostream &operator<<(std::ostream &os, Colour const &);
  
  } // end namespace Catch
  
  // end catch_console_colour.h
  // start catch_reporter_registrars.hpp
  
  namespace Catch
  {
  template<typename T>
  class ReporterRegistrar
  {
    class ReporterFactory : public IReporterFactory
    {
      IStreamingReporterPtr create(ReporterConfig const &config) const override
      {
        return std::unique_ptr<T>(new T(config));
      }
  
      std::string getDescription() const override { return T::getDescription(); }
    };
  
  public:
    explicit ReporterRegistrar(std::string const &name)
    {
      getMutableRegistryHub().registerReporter(
          name, std::make_shared<ReporterFactory>());
    }
  };
  
  template<typename T>
  class ListenerRegistrar
  {
    class ListenerFactory : public IReporterFactory
    {
      IStreamingReporterPtr create(ReporterConfig const &config) const override
      {
        return std::unique_ptr<T>(new T(config));
      }
      std::string getDescription() const override { return std::string(); }
    };
  
  public:
    ListenerRegistrar()
    {
      getMutableRegistryHub().registerListener(
          std::make_shared<ListenerFactory>());
    }
  };
  } // namespace Catch
  
  #if !defined(CATCH_CONFIG_DISABLE)
  
  #define CATCH_REGISTER_REPORTER(name, reporterType)    \
    CATCH_INTERNAL_START_WARNINGS_SUPPRESSION            \
    CATCH_INTERNAL_SUPPRESS_GLOBALS_WARNINGS             \
    namespace                                            \
    {                                                    \
    Catch::ReporterRegistrar<reporterType>               \
        catch_internal_RegistrarFor##reporterType(name); \
    }                                                    \
    CATCH_INTERNAL_STOP_WARNINGS_SUPPRESSION
  
  #define CATCH_REGISTER_LISTENER(listenerType)    \
    CATCH_INTERNAL_START_WARNINGS_SUPPRESSION      \
    CATCH_INTERNAL_SUPPRESS_GLOBALS_WARNINGS       \
    namespace                                      \
    {                                              \
    Catch::ListenerRegistrar<listenerType>         \
        catch_internal_RegistrarFor##listenerType; \
    }                                              \
    CATCH_INTERNAL_STOP_WARNINGS_SUPPRESSION
  #else // CATCH_CONFIG_DISABLE
  
  #define CATCH_REGISTER_REPORTER(name, reporterType)
  #define CATCH_REGISTER_LISTENER(listenerType)
  
  #endif // CATCH_CONFIG_DISABLE
  
  // end catch_reporter_registrars.hpp
  // Allow users to base their work off existing reporters
  // start catch_reporter_compact.h
  
  namespace Catch
  {
  struct CompactReporter : StreamingReporterBase<CompactReporter>
  {
    using StreamingReporterBase::StreamingReporterBase;
  
    ~CompactReporter() override;
  
    static std::string getDescription();
  
    ReporterPreferences getPreferences() const override;
  
    void noMatchingTestCases(std::string const &spec) override;
  
    void assertionStarting(AssertionInfo const &) override;
  
    bool assertionEnded(AssertionStats const &_assertionStats) override;
  
    void sectionEnded(SectionStats const &_sectionStats) override;
  
    void testRunEnded(TestRunStats const &_testRunStats) override;
  };
  
  } // end namespace Catch
  
  // end catch_reporter_compact.h
  // start catch_reporter_console.h
  
  #if defined(_MSC_VER)
  #pragma warning(push)
  #pragma warning(disable : 4061) // Not all labels are EXPLICITLY handled in
                                  // switch Note that 4062 (not all labels are
                                  // handled and default is missing) is enabled
  #endif
  
  namespace Catch
  {
  // Fwd decls
  struct SummaryColumn;
  class TablePrinter;
  
  struct ConsoleReporter : StreamingReporterBase<ConsoleReporter>
  {
    std::unique_ptr<TablePrinter> m_tablePrinter;
  
    ConsoleReporter(ReporterConfig const &config);
    ~ConsoleReporter() override;
    static std::string getDescription();
  
    void noMatchingTestCases(std::string const &spec) override;
  
    void reportInvalidArguments(std::string const &arg) override;
  
    void assertionStarting(AssertionInfo const &) override;
  
    bool assertionEnded(AssertionStats const &_assertionStats) override;
  
    void sectionStarting(SectionInfo const &_sectionInfo) override;
    void sectionEnded(SectionStats const &_sectionStats) override;
  
  #if defined(CATCH_CONFIG_ENABLE_BENCHMARKING)
    void benchmarkPreparing(std::string const &name) override;
    void benchmarkStarting(BenchmarkInfo const &info) override;
    void benchmarkEnded(BenchmarkStats<> const &stats) override;
    void benchmarkFailed(std::string const &error) override;
  #endif // CATCH_CONFIG_ENABLE_BENCHMARKING
  
    void testCaseEnded(TestCaseStats const &_testCaseStats) override;
    void testGroupEnded(TestGroupStats const &_testGroupStats) override;
    void testRunEnded(TestRunStats const &_testRunStats) override;
    void testRunStarting(TestRunInfo const &_testRunInfo) override;
  
  private:
    void lazyPrint();
  
    void lazyPrintWithoutClosingBenchmarkTable();
    void lazyPrintRunInfo();
    void lazyPrintGroupInfo();
    void printTestCaseAndSectionHeader();
  
    void printClosedHeader(std::string const &_name);
    void printOpenHeader(std::string const &_name);
  
    // if string has a : in first line will set indent to follow it on
    // subsequent lines
    void printHeaderString(std::string const &_string, std::size_t indent = 0);
  
    void printTotals(Totals const &totals);
    void printSummaryRow(std::string const &label,
                         std::vector<SummaryColumn> const &cols, std::size_t row);
  
    void printTotalsDivider(Totals const &totals);
    void printSummaryDivider();
    void printTestFilters();
  
  private:
    bool m_headerPrinted = false;
  };
  
  } // end namespace Catch
  
  #if defined(_MSC_VER)
  #pragma warning(pop)
  #endif
  
  // end catch_reporter_console.h
  // start catch_reporter_junit.h
  
  // start catch_xmlwriter.h
  
  #include <vector>
  
  namespace Catch
  {
  enum class XmlFormatting
  {
    None    = 0x00,
    Indent  = 0x01,
    Newline = 0x02,
  };
  
  XmlFormatting operator|(XmlFormatting lhs, XmlFormatting rhs);
  XmlFormatting operator&(XmlFormatting lhs, XmlFormatting rhs);
  
  class XmlEncode
  {
  public:
    enum ForWhat
    {
      ForTextNodes,
      ForAttributes
    };
  
    XmlEncode(std::string const &str, ForWhat forWhat = ForTextNodes);
  
    void encodeTo(std::ostream &os) const;
  
    friend std::ostream &operator<<(std::ostream &os, XmlEncode const &xmlEncode);
  
  private:
    std::string m_str;
    ForWhat m_forWhat;
  };
  
  class XmlWriter
  {
  public:
    class ScopedElement
    {
    public:
      ScopedElement(XmlWriter *writer, XmlFormatting fmt);
  
      ScopedElement(ScopedElement &&other) noexcept;
      ScopedElement &operator=(ScopedElement &&other) noexcept;
  
      ~ScopedElement();
  
      ScopedElement &writeText(std::string const &text,
                               XmlFormatting fmt = XmlFormatting::Newline |
                                                   XmlFormatting::Indent);
  
      template<typename T>
      ScopedElement &writeAttribute(std::string const &name, T const &attribute)
      {
        m_writer->writeAttribute(name, attribute);
        return *this;
      }
  
    private:
      mutable XmlWriter *m_writer = nullptr;
      XmlFormatting m_fmt;
    };
  
    XmlWriter(std::ostream &os = Catch::cout());
    ~XmlWriter();
  
    XmlWriter(XmlWriter const &) = delete;
    XmlWriter &operator=(XmlWriter const &) = delete;
  
    XmlWriter &startElement(std::string const &name,
                            XmlFormatting fmt = XmlFormatting::Newline |
                                                XmlFormatting::Indent);
  
    ScopedElement scopedElement(std::string const &name,
                                XmlFormatting fmt = XmlFormatting::Newline |
                                                    XmlFormatting::Indent);
  
    XmlWriter &endElement(XmlFormatting fmt = XmlFormatting::Newline |
                                              XmlFormatting::Indent);
  
    XmlWriter &
    writeAttribute(std::string const &name, std::string const &attribute);
  
    XmlWriter &writeAttribute(std::string const &name, bool attribute);
  
    template<typename T>
    XmlWriter &writeAttribute(std::string const &name, T const &attribute)
    {
      ReusableStringStream rss;
      rss << attribute;
      return writeAttribute(name, rss.str());
    }
  
    XmlWriter &
    writeText(std::string const &text,
              XmlFormatting fmt = XmlFormatting::Newline | XmlFormatting::Indent);
  
    XmlWriter &writeComment(std::string const &text,
                            XmlFormatting fmt = XmlFormatting::Newline |
                                                XmlFormatting::Indent);
  
    void writeStylesheetRef(std::string const &url);
  
    XmlWriter &writeBlankLine();
  
    void ensureTagClosed();
  
  private:
    void applyFormatting(XmlFormatting fmt);
  
    void writeDeclaration();
  
    void newlineIfNecessary();
  
    bool m_tagIsOpen    = false;
    bool m_needsNewline = false;
    std::vector<std::string> m_tags;
    std::string m_indent;
    std::ostream &m_os;
  };
  
  } // namespace Catch
  
  // end catch_xmlwriter.h
  namespace Catch
  {
  class JunitReporter : public CumulativeReporterBase<JunitReporter>
  {
  public:
    JunitReporter(ReporterConfig const &_config);
  
    ~JunitReporter() override;
  
    static std::string getDescription();
  
    void noMatchingTestCases(std::string const & /*spec*/) override;
  
    void testRunStarting(TestRunInfo const &runInfo) override;
  
    void testGroupStarting(GroupInfo const &groupInfo) override;
  
    void testCaseStarting(TestCaseInfo const &testCaseInfo) override;
    bool assertionEnded(AssertionStats const &assertionStats) override;
  
    void testCaseEnded(TestCaseStats const &testCaseStats) override;
  
    void testGroupEnded(TestGroupStats const &testGroupStats) override;
  
    void testRunEndedCumulative() override;
  
    void writeGroup(TestGroupNode const &groupNode, double suiteTime);
  
    void writeTestCase(TestCaseNode const &testCaseNode);
  
    void writeSection(std::string const &className, std::string const &rootName,
                      SectionNode const &sectionNode);
  
    void writeAssertions(SectionNode const &sectionNode);
    void writeAssertion(AssertionStats const &stats);
  
    XmlWriter xml;
    Timer suiteTimer;
    std::string stdOutForSuite;
    std::string stdErrForSuite;
    unsigned int unexpectedExceptions = 0;
    bool m_okToFail                   = false;
  };
  
  } // end namespace Catch
  
  // end catch_reporter_junit.h
  // start catch_reporter_xml.h
  
  namespace Catch
  {
  class XmlReporter : public StreamingReporterBase<XmlReporter>
  {
  public:
    XmlReporter(ReporterConfig const &_config);
  
    ~XmlReporter() override;
  
    static std::string getDescription();
  
    virtual std::string getStylesheetRef() const;
  
    void writeSourceInfo(SourceLineInfo const &sourceInfo);
  
  public: // StreamingReporterBase
    void noMatchingTestCases(std::string const &s) override;
  
    void testRunStarting(TestRunInfo const &testInfo) override;
  
    void testGroupStarting(GroupInfo const &groupInfo) override;
  
    void testCaseStarting(TestCaseInfo const &testInfo) override;
  
    void sectionStarting(SectionInfo const &sectionInfo) override;
  
    void assertionStarting(AssertionInfo const &) override;
  
    bool assertionEnded(AssertionStats const &assertionStats) override;
  
    void sectionEnded(SectionStats const &sectionStats) override;
  
    void testCaseEnded(TestCaseStats const &testCaseStats) override;
  
    void testGroupEnded(TestGroupStats const &testGroupStats) override;
  
    void testRunEnded(TestRunStats const &testRunStats) override;
  
  #if defined(CATCH_CONFIG_ENABLE_BENCHMARKING)
    void benchmarkPreparing(std::string const &name) override;
    void benchmarkStarting(BenchmarkInfo const &) override;
    void benchmarkEnded(BenchmarkStats<> const &) override;
    void benchmarkFailed(std::string const &) override;
  #endif // CATCH_CONFIG_ENABLE_BENCHMARKING
  
  private:
    Timer m_testCaseTimer;
    XmlWriter m_xml;
    int m_sectionDepth = 0;
  };
  
  } // end namespace Catch
  
  // end catch_reporter_xml.h
  
  // end catch_external_interfaces.h
  #endif
  
  #if defined(CATCH_CONFIG_ENABLE_BENCHMARKING)
  // start catch_benchmarking_all.hpp
  
  // A proxy header that includes all of the benchmarking headers to allow
  // concise include of the benchmarking features. You should prefer the
  // individual includes in standard use.
  
  // start catch_benchmark.hpp
  
  // Benchmark
  
  // start catch_chronometer.hpp
  
  // User-facing chronometer
  
  // start catch_clock.hpp
  
  // Clocks
  
  #include <chrono>
  #include <ratio>
  
  namespace Catch
  {
  namespace Benchmark
  {
  template<typename Clock>
  using ClockDuration = typename Clock::duration;
  template<typename Clock>
  using FloatDuration = std::chrono::duration<double, typename Clock::period>;
  
  template<typename Clock>
  using TimePoint = typename Clock::time_point;
  
  using default_clock = std::chrono::steady_clock;
  
  template<typename Clock>
  struct now
  {
    TimePoint<Clock> operator()() const { return Clock::now(); }
  };
  
  using fp_seconds = std::chrono::duration<double, std::ratio<1>>;
  } // namespace Benchmark
  } // namespace Catch
  
  // end catch_clock.hpp
  // start catch_optimizer.hpp
  
  // Hinting the optimizer
  
  #if defined(_MSC_VER)
  #include <atomic> // atomic_thread_fence
  #endif
  
  namespace Catch
  {
  namespace Benchmark
  {
  #if defined(__GNUC__) || defined(__clang__)
  template<typename T>
  inline void keep_memory(T *p)
  {
    asm volatile("" : : "g"(p) : "memory");
  }
  inline void keep_memory() { asm volatile("" : : : "memory"); }
  
  namespace Detail
  {
  inline void optimizer_barrier() { keep_memory(); }
  } // namespace Detail
  #elif defined(_MSC_VER)
  
  #pragma optimize("", off)
  template<typename T>
  inline void keep_memory(T *p)
  {
    // thanks @milleniumbug
    *reinterpret_cast<char volatile *>(p) =
        *reinterpret_cast<char const volatile *>(p);
  }
  // TODO equivalent keep_memory()
  #pragma optimize("", on)
  
  namespace Detail
  {
  inline void optimizer_barrier()
  {
    std::atomic_thread_fence(std::memory_order_seq_cst);
  }
  } // namespace Detail
  
  #endif
  
  template<typename T>
  inline void deoptimize_value(T &&x)
  {
    keep_memory(&x);
  }
  
  template<typename Fn, typename... Args>
  inline auto invoke_deoptimized(Fn &&fn, Args &&... args) ->
      typename std::enable_if<
          !std::is_same<void, decltype(fn(args...))>::value>::type
  {
    deoptimize_value(std::forward<Fn>(fn)(std::forward<Args...>(args...)));
  }
  
  template<typename Fn, typename... Args>
  inline auto invoke_deoptimized(Fn &&fn, Args &&... args) ->
      typename std::enable_if<
          std::is_same<void, decltype(fn(args...))>::value>::type
  {
    std::forward<Fn>(fn)(std::forward<Args...>(args...));
  }
  } // namespace Benchmark
  } // namespace Catch
  
  // end catch_optimizer.hpp
  // start catch_complete_invoke.hpp
  
  // Invoke with a special case for void
  
  #include <type_traits>
  #include <utility>
  
  namespace Catch
  {
  namespace Benchmark
  {
  namespace Detail
  {
  template<typename T>
  struct CompleteType
  {
    using type = T;
  };
  template<>
  struct CompleteType<void>
  {
    struct type
    {};
  };
  
  template<typename T>
  using CompleteType_t = typename CompleteType<T>::type;
  
  template<typename Result>
  struct CompleteInvoker
  {
    template<typename Fun, typename... Args>
    static Result invoke(Fun &&fun, Args &&... args)
    {
      return std::forward<Fun>(fun)(std::forward<Args>(args)...);
    }
  };
  template<>
  struct CompleteInvoker<void>
  {
    template<typename Fun, typename... Args>
    static CompleteType_t<void> invoke(Fun &&fun, Args &&... args)
    {
      std::forward<Fun>(fun)(std::forward<Args>(args)...);
      return {};
    }
  };
  template<typename Sig>
  using ResultOf_t = typename std::result_of<Sig>::type;
  
  // invoke and not return void :(
  template<typename Fun, typename... Args>
  CompleteType_t<ResultOf_t<Fun(Args...)>>
  complete_invoke(Fun &&fun, Args &&... args)
  {
    return CompleteInvoker<ResultOf_t<Fun(Args...)>>::invoke(
        std::forward<Fun>(fun), std::forward<Args>(args)...);
  }
  
  const std::string benchmarkErrorMsg = "a benchmark failed to run successfully";
  } // namespace Detail
  
  template<typename Fun>
  Detail::CompleteType_t<Detail::ResultOf_t<Fun()>> user_code(Fun &&fun)
  {
    CATCH_TRY { return Detail::complete_invoke(std::forward<Fun>(fun)); }
    CATCH_CATCH_ALL
    {
      getResultCapture().benchmarkFailed(translateActiveException());
      CATCH_RUNTIME_ERROR(Detail::benchmarkErrorMsg);
    }
  }
  } // namespace Benchmark
  } // namespace Catch
  
  // end catch_complete_invoke.hpp
  namespace Catch
  {
  namespace Benchmark
  {
  namespace Detail
  {
  struct ChronometerConcept
  {
    virtual void start()          = 0;
    virtual void finish()         = 0;
    virtual ~ChronometerConcept() = default;
  };
  template<typename Clock>
  struct ChronometerModel final : public ChronometerConcept
  {
    void start() override { started = Clock::now(); }
    void finish() override { finished = Clock::now(); }
  
    ClockDuration<Clock> elapsed() const { return finished - started; }
  
    TimePoint<Clock> started;
    TimePoint<Clock> finished;
  };
  } // namespace Detail
  
  struct Chronometer
  {
  public:
    template<typename Fun>
    void measure(Fun &&fun)
    {
      measure(std::forward<Fun>(fun), is_callable<Fun(int)>());
    }
  
    int runs() const { return k; }
  
    Chronometer(Detail::ChronometerConcept &meter, int k) : impl(&meter), k(k) {}
  
  private:
    template<typename Fun>
    void measure(Fun &&fun, std::false_type)
    {
      measure([&fun](int) { return fun(); }, std::true_type());
    }
  
    template<typename Fun>
    void measure(Fun &&fun, std::true_type)
    {
      Detail::optimizer_barrier();
      impl->start();
      for (int i = 0; i < k; ++i)
        invoke_deoptimized(fun, i);
      impl->finish();
      Detail::optimizer_barrier();
    }
  
    Detail::ChronometerConcept *impl;
    int k;
  };
  } // namespace Benchmark
  } // namespace Catch
  
  // end catch_chronometer.hpp
  // start catch_environment.hpp
  
  // Environment information
  
  namespace Catch
  {
  namespace Benchmark
  {
  template<typename Duration>
  struct EnvironmentEstimate
  {
    Duration mean;
    OutlierClassification outliers;
  
    template<typename Duration2>
    operator EnvironmentEstimate<Duration2>() const
    {
      return {mean, outliers};
    }
  };
  template<typename Clock>
  struct Environment
  {
    using clock_type = Clock;
    EnvironmentEstimate<FloatDuration<Clock>> clock_resolution;
    EnvironmentEstimate<FloatDuration<Clock>> clock_cost;
  };
  } // namespace Benchmark
  } // namespace Catch
  
  // end catch_environment.hpp
  // start catch_execution_plan.hpp
  
  // Execution plan
  
  // start catch_benchmark_function.hpp
  
  // Dumb std::function implementation for consistent call overhead
  
  #include <cassert>
  #include <memory>
  #include <type_traits>
  #include <utility>
  
  namespace Catch
  {
  namespace Benchmark
  {
  namespace Detail
  {
  template<typename T>
  using Decay = typename std::decay<T>::type;
  template<typename T, typename U>
  struct is_related : std::is_same<Decay<T>, Decay<U>>
  {};
  
  /// We need to reinvent std::function because every piece of code that might add
  /// overhead in a measurement context needs to have consistent performance
  /// characteristics so that we can account for it in the measurement.
  /// Implementations of std::function with optimizations that aren't always
  /// applicable, like small buffer optimizations, are not uncommon. This is
  /// effectively an implementation of std::function without any such
  /// optimizations; it may be slow, but it is consistently slow.
  struct BenchmarkFunction
  {
  private:
    struct callable
    {
      virtual void call(Chronometer meter) const = 0;
      virtual callable *clone() const            = 0;
      virtual ~callable()                        = default;
    };
    template<typename Fun>
    struct model : public callable
    {
      model(Fun &&fun) : fun(std::move(fun)) {}
      model(Fun const &fun) : fun(fun) {}
  
      model<Fun> *clone() const override { return new model<Fun>(*this); }
  
      void call(Chronometer meter) const override
      {
        call(meter, is_callable<Fun(Chronometer)>());
      }
      void call(Chronometer meter, std::true_type) const { fun(meter); }
      void call(Chronometer meter, std::false_type) const { meter.measure(fun); }
  
      Fun fun;
    };
  
    struct do_nothing
    {
      void operator()() const {}
    };
  
    template<typename T>
    BenchmarkFunction(model<T> *c) : f(c)
    {}
  
  public:
    BenchmarkFunction() : f(new model<do_nothing>{{}}) {}
  
    template<typename Fun,
             typename std::enable_if<!is_related<Fun, BenchmarkFunction>::value,
                                     int>::type = 0>
    BenchmarkFunction(Fun &&fun)
        : f(new model<typename std::decay<Fun>::type>(std::forward<Fun>(fun)))
    {}
  
    BenchmarkFunction(BenchmarkFunction &&that) : f(std::move(that.f)) {}
  
    BenchmarkFunction(BenchmarkFunction const &that) : f(that.f->clone()) {}
  
    BenchmarkFunction &operator=(BenchmarkFunction &&that)
    {
      f = std::move(that.f);
      return *this;
    }
  
    BenchmarkFunction &operator=(BenchmarkFunction const &that)
    {
      f.reset(that.f->clone());
      return *this;
    }
  
    void operator()(Chronometer meter) const { f->call(meter); }
  
  private:
    std::unique_ptr<callable> f;
  };
  } // namespace Detail
  } // namespace Benchmark
  } // namespace Catch
  
  // end catch_benchmark_function.hpp
  // start catch_repeat.hpp
  
  // repeat algorithm
  
  #include <type_traits>
  #include <utility>
  
  namespace Catch
  {
  namespace Benchmark
  {
  namespace Detail
  {
  template<typename Fun>
  struct repeater
  {
    void operator()(int k) const
    {
      for (int i = 0; i < k; ++i)
      {
        fun();
      }
    }
    Fun fun;
  };
  template<typename Fun>
  repeater<typename std::decay<Fun>::type> repeat(Fun &&fun)
  {
    return {std::forward<Fun>(fun)};
  }
  } // namespace Detail
  } // namespace Benchmark
  } // namespace Catch
  
  // end catch_repeat.hpp
  // start catch_run_for_at_least.hpp
  
  // Run a function for a minimum amount of time
  
  // start catch_measure.hpp
  
  // Measure
  
  // start catch_timing.hpp
  
  // Timing
  
  #include <tuple>
  #include <type_traits>
  
  namespace Catch
  {
  namespace Benchmark
  {
  template<typename Duration, typename Result>
  struct Timing
  {
    Duration elapsed;
    Result result;
    int iterations;
  };
  template<typename Clock, typename Sig>
  using TimingOf = Timing<ClockDuration<Clock>,
                          Detail::CompleteType_t<Detail::ResultOf_t<Sig>>>;
  } // namespace Benchmark
  } // namespace Catch
  
  // end catch_timing.hpp
  #include <utility>
  
  namespace Catch
  {
  namespace Benchmark
  {
  namespace Detail
  {
  template<typename Clock, typename Fun, typename... Args>
  TimingOf<Clock, Fun(Args...)> measure(Fun &&fun, Args &&... args)
  {
    auto start = Clock::now();
    auto &&r   = Detail::complete_invoke(fun, std::forward<Args>(args)...);
    auto end   = Clock::now();
    auto delta = end - start;
    return {delta, std::forward<decltype(r)>(r), 1};
  }
  } // namespace Detail
  } // namespace Benchmark
  } // namespace Catch
  
  // end catch_measure.hpp
  #include <type_traits>
  #include <utility>
  
  namespace Catch
  {
  namespace Benchmark
  {
  namespace Detail
  {
  template<typename Clock, typename Fun>
  TimingOf<Clock, Fun(int)> measure_one(Fun &&fun, int iters, std::false_type)
  {
    return Detail::measure<Clock>(fun, iters);
  }
  template<typename Clock, typename Fun>
  TimingOf<Clock, Fun(Chronometer)>
  measure_one(Fun &&fun, int iters, std::true_type)
  {
    Detail::ChronometerModel<Clock> meter;
    auto &&result = Detail::complete_invoke(fun, Chronometer(meter, iters));
  
    return {meter.elapsed(), std::move(result), iters};
  }
  
  template<typename Clock, typename Fun>
  using run_for_at_least_argument_t =
      typename std::conditional<is_callable<Fun(Chronometer)>::value, Chronometer,
                                int>::type;
  
  struct optimized_away_error : std::exception
  {
    const char *what() const noexcept override
    {
      return "could not measure benchmark, maybe it was optimized away";
    }
  };
  
  template<typename Clock, typename Fun>
  TimingOf<Clock, Fun(run_for_at_least_argument_t<Clock, Fun>)>
  run_for_at_least(ClockDuration<Clock> how_long, int seed, Fun &&fun)
  {
    auto iters = seed;
    while (iters < (1 << 30))
    {
      auto &&Timing =
          measure_one<Clock>(fun, iters, is_callable<Fun(Chronometer)>());
  
      if (Timing.elapsed >= how_long)
      {
        return {Timing.elapsed, std::move(Timing.result), iters};
      }
      iters *= 2;
    }
    throw optimized_away_error{};
  }
  } // namespace Detail
  } // namespace Benchmark
  } // namespace Catch
  
  // end catch_run_for_at_least.hpp
  #include <algorithm>
  
  namespace Catch
  {
  namespace Benchmark
  {
  template<typename Duration>
  struct ExecutionPlan
  {
    int iterations_per_sample;
    Duration estimated_duration;
    Detail::BenchmarkFunction benchmark;
    Duration warmup_time;
    int warmup_iterations;
  
    template<typename Duration2>
    operator ExecutionPlan<Duration2>() const
    {
      return {iterations_per_sample, estimated_duration, benchmark, warmup_time,
              warmup_iterations};
    }
  
    template<typename Clock>
    std::vector<FloatDuration<Clock>>
    run(const IConfig &cfg, Environment<FloatDuration<Clock>> env) const
    {
      // warmup a bit
      Detail::run_for_at_least<Clock>(
          std::chrono::duration_cast<ClockDuration<Clock>>(warmup_time),
          warmup_iterations, Detail::repeat(now<Clock>{}));
  
      std::vector<FloatDuration<Clock>> times;
      times.reserve(cfg.benchmarkSamples());
      std::generate_n(
          std::back_inserter(times), cfg.benchmarkSamples(), [this, env] {
            Detail::ChronometerModel<Clock> model;
            this->benchmark(Chronometer(model, iterations_per_sample));
            auto sample_time = model.elapsed() - env.clock_cost.mean;
            if (sample_time < FloatDuration<Clock>::zero())
              sample_time = FloatDuration<Clock>::zero();
            return sample_time / iterations_per_sample;
          });
      return times;
    }
  };
  } // namespace Benchmark
  } // namespace Catch
  
  // end catch_execution_plan.hpp
  // start catch_estimate_clock.hpp
  
  // Environment measurement
  
  // start catch_stats.hpp
  
  // Statistical analysis tools
  
  #include <algorithm>
  #include <cmath>
  #include <cstddef>
  #include <functional>
  #include <iterator>
  #include <numeric>
  #include <random>
  #include <tuple>
  #include <utility>
  #include <vector>
  
  namespace Catch
  {
  namespace Benchmark
  {
  namespace Detail
  {
  using sample = std::vector<double>;
  
  double weighted_average_quantile(int k, int q,
                                   std::vector<double>::iterator first,
                                   std::vector<double>::iterator last);
  
  template<typename Iterator>
  OutlierClassification classify_outliers(Iterator first, Iterator last)
  {
    std::vector<double> copy(first, last);
  
    auto q1  = weighted_average_quantile(1, 4, copy.begin(), copy.end());
    auto q3  = weighted_average_quantile(3, 4, copy.begin(), copy.end());
    auto iqr = q3 - q1;
    auto los = q1 - (iqr * 3.);
    auto lom = q1 - (iqr * 1.5);
    auto him = q3 + (iqr * 1.5);
    auto his = q3 + (iqr * 3.);
  
    OutlierClassification o;
    for (; first != last; ++first)
    {
      auto &&t = *first;
      if (t < los)
        ++o.low_severe;
      else if (t < lom)
        ++o.low_mild;
      else if (t > his)
        ++o.high_severe;
      else if (t > him)
        ++o.high_mild;
      ++o.samples_seen;
    }
    return o;
  }
  
  template<typename Iterator>
  double mean(Iterator first, Iterator last)
  {
    auto count = last - first;
    double sum = std::accumulate(first, last, 0.);
    return sum / count;
  }
  
  template<typename URng, typename Iterator, typename Estimator>
  sample resample(URng &rng, int resamples, Iterator first, Iterator last,
                  Estimator &estimator)
  {
    auto n = last - first;
    std::uniform_int_distribution<decltype(n)> dist(0, n - 1);
  
    sample out;
    out.reserve(resamples);
    std::generate_n(
        std::back_inserter(out), resamples, [n, first, &estimator, &dist, &rng] {
          std::vector<double> resampled;
          resampled.reserve(n);
          std::generate_n(std::back_inserter(resampled), n,
                          [first, &dist, &rng] { return first[dist(rng)]; });
          return estimator(resampled.begin(), resampled.end());
        });
    std::sort(out.begin(), out.end());
    return out;
  }
  
  template<typename Estimator, typename Iterator>
  sample jackknife(Estimator &&estimator, Iterator first, Iterator last)
  {
    auto n      = last - first;
    auto second = std::next(first);
    sample results;
    results.reserve(n);
  
    for (auto it = first; it != last; ++it)
    {
      std::iter_swap(it, first);
      results.push_back(estimator(second, last));
    }
  
    return results;
  }
  
  inline double normal_cdf(double x)
  {
    return std::erfc(-x / std::sqrt(2.0)) / 2.0;
  }
  
  double erfc_inv(double x);
  
  double normal_quantile(double p);
  
  template<typename Iterator, typename Estimator>
  Estimate<double>
  bootstrap(double confidence_level, Iterator first, Iterator last,
            sample const &resample, Estimator &&estimator)
  {
    auto n_samples = last - first;
  
    double point = estimator(first, last);
    // Degenerate case with a single sample
    if (n_samples == 1)
      return {point, point, point, confidence_level};
  
    sample jack      = jackknife(estimator, first, last);
    double jack_mean = mean(jack.begin(), jack.end());
    double sum_squares, sum_cubes;
    std::tie(sum_squares, sum_cubes) =
        std::accumulate(jack.begin(), jack.end(), std::make_pair(0., 0.),
                        [jack_mean](std::pair<double, double> sqcb,
                                    double x) -> std::pair<double, double> {
                          auto d  = jack_mean - x;
                          auto d2 = d * d;
                          auto d3 = d2 * d;
                          return {sqcb.first + d2, sqcb.second + d3};
                        });
  
    double accel  = sum_cubes / (6 * std::pow(sum_squares, 1.5));
    int n         = static_cast<int>(resample.size());
    double prob_n = std::count_if(resample.begin(), resample.end(),
                                  [point](double x) { return x < point; }) /
                    (double)n;
    // degenerate case with uniform samples
    if (prob_n == 0)
      return {point, point, point, confidence_level};
  
    double bias = normal_quantile(prob_n);
    double z1   = normal_quantile((1. - confidence_level) / 2.);
  
    auto cumn = [n](double x) -> int { return std::lround(normal_cdf(x) * n); };
    auto a    = [bias, accel](double b) { return bias + b / (1. - accel * b); };
    double b1 = bias + z1;
    double b2 = bias - z1;
    double a1 = a(b1);
    double a2 = a(b2);
    auto lo   = std::max(cumn(a1), 0);
    auto hi   = std::min(cumn(a2), n - 1);
  
    return {point, resample[lo], resample[hi], confidence_level};
  }
  
  double outlier_variance(Estimate<double> mean, Estimate<double> stddev, int n);
  
  struct bootstrap_analysis
  {
    Estimate<double> mean;
    Estimate<double> standard_deviation;
    double outlier_variance;
  };
  
  bootstrap_analysis analyse_samples(double confidence_level, int n_resamples,
                                     std::vector<double>::iterator first,
                                     std::vector<double>::iterator last);
  } // namespace Detail
  } // namespace Benchmark
  } // namespace Catch
  
  // end catch_stats.hpp
  #include <algorithm>
  #include <cmath>
  #include <iterator>
  #include <tuple>
  #include <vector>
  
  namespace Catch
  {
  namespace Benchmark
  {
  namespace Detail
  {
  template<typename Clock>
  std::vector<double> resolution(int k)
  {
    std::vector<TimePoint<Clock>> times;
    times.reserve(k + 1);
    std::generate_n(std::back_inserter(times), k + 1, now<Clock>{});
  
    std::vector<double> deltas;
    deltas.reserve(k);
    std::transform(std::next(times.begin()), times.end(), times.begin(),
                   std::back_inserter(deltas),
                   [](TimePoint<Clock> a, TimePoint<Clock> b) {
                     return static_cast<double>((a - b).count());
                   });
  
    return deltas;
  }
  
  const auto warmup_iterations                = 10000;
  const auto warmup_time                      = std::chrono::milliseconds(100);
  const auto minimum_ticks                    = 1000;
  const auto warmup_seed                      = 10000;
  const auto clock_resolution_estimation_time = std::chrono::milliseconds(500);
  const auto clock_cost_estimation_time_limit = std::chrono::seconds(1);
  const auto clock_cost_estimation_tick_limit = 100000;
  const auto clock_cost_estimation_time       = std::chrono::milliseconds(10);
  const auto clock_cost_estimation_iterations = 10000;
  
  template<typename Clock>
  int warmup()
  {
    return run_for_at_least<Clock>(
               std::chrono::duration_cast<ClockDuration<Clock>>(warmup_time),
               warmup_seed, &resolution<Clock>)
        .iterations;
  }
  template<typename Clock>
  EnvironmentEstimate<FloatDuration<Clock>>
  estimate_clock_resolution(int iterations)
  {
    auto r =
        run_for_at_least<Clock>(std::chrono::duration_cast<ClockDuration<Clock>>(
                                    clock_resolution_estimation_time),
                                iterations, &resolution<Clock>)
            .result;
    return {
        FloatDuration<Clock>(mean(r.begin(), r.end())),
        classify_outliers(r.begin(), r.end()),
    };
  }
  template<typename Clock>
  EnvironmentEstimate<FloatDuration<Clock>>
  estimate_clock_cost(FloatDuration<Clock> resolution)
  {
    auto time_limit =
        std::min(resolution * clock_cost_estimation_tick_limit,
                 FloatDuration<Clock>(clock_cost_estimation_time_limit));
    auto time_clock = [](int k) {
      return Detail::measure<Clock>([k] {
               for (int i = 0; i < k; ++i)
               {
                 volatile auto ignored = Clock::now();
                 (void)ignored;
               }
             })
          .elapsed;
    };
    time_clock(1);
    int iters = clock_cost_estimation_iterations;
    auto &&r =
        run_for_at_least<Clock>(std::chrono::duration_cast<ClockDuration<Clock>>(
                                    clock_cost_estimation_time),
                                iters, time_clock);
    std::vector<double> times;
    int nsamples = static_cast<int>(std::ceil(time_limit / r.elapsed));
    times.reserve(nsamples);
    std::generate_n(std::back_inserter(times), nsamples, [time_clock, &r] {
      return static_cast<double>(
          (time_clock(r.iterations) / r.iterations).count());
    });
    return {
        FloatDuration<Clock>(mean(times.begin(), times.end())),
        classify_outliers(times.begin(), times.end()),
    };
  }
  
  template<typename Clock>
  Environment<FloatDuration<Clock>> measure_environment()
  {
    static Environment<FloatDuration<Clock>> *env = nullptr;
    if (env)
    {
      return *env;
    }
  
    auto iters      = Detail::warmup<Clock>();
    auto resolution = Detail::estimate_clock_resolution<Clock>(iters);
    auto cost       = Detail::estimate_clock_cost<Clock>(resolution.mean);
  
    env = new Environment<FloatDuration<Clock>>{resolution, cost};
    return *env;
  }
  } // namespace Detail
  } // namespace Benchmark
  } // namespace Catch
  
  // end catch_estimate_clock.hpp
  // start catch_analyse.hpp
  
  // Run and analyse one benchmark
  
  // start catch_sample_analysis.hpp
  
  // Benchmark results
  
  #include <algorithm>
  #include <iterator>
  #include <string>
  #include <vector>
  
  namespace Catch
  {
  namespace Benchmark
  {
  template<typename Duration>
  struct SampleAnalysis
  {
    std::vector<Duration> samples;
    Estimate<Duration> mean;
    Estimate<Duration> standard_deviation;
    OutlierClassification outliers;
    double outlier_variance;
  
    template<typename Duration2>
    operator SampleAnalysis<Duration2>() const
    {
      std::vector<Duration2> samples2;
      samples2.reserve(samples.size());
      std::transform(samples.begin(), samples.end(), std::back_inserter(samples2),
                     [](Duration d) { return Duration2(d); });
      return {
          std::move(samples2), mean, standard_deviation, outliers,
          outlier_variance,
      };
    }
  };
  } // namespace Benchmark
  } // namespace Catch
  
  // end catch_sample_analysis.hpp
  #include <algorithm>
  #include <iterator>
  #include <vector>
  
  namespace Catch
  {
  namespace Benchmark
  {
  namespace Detail
  {
  template<typename Duration, typename Iterator>
  SampleAnalysis<Duration> analyse(const IConfig &cfg, Environment<Duration>,
                                   Iterator first, Iterator last)
  {
    if (!cfg.benchmarkNoAnalysis())
    {
      std::vector<double> samples;
      samples.reserve(last - first);
      std::transform(first, last, std::back_inserter(samples),
                     [](Duration d) { return d.count(); });
  
      auto analysis = Catch::Benchmark::Detail::analyse_samples(
          cfg.benchmarkConfidenceInterval(), cfg.benchmarkResamples(),
          samples.begin(), samples.end());
      auto outliers = Catch::Benchmark::Detail::classify_outliers(samples.begin(),
                                                                  samples.end());
  
      auto wrap_estimate = [](Estimate<double> e) {
        return Estimate<Duration>{
            Duration(e.point),
            Duration(e.lower_bound),
            Duration(e.upper_bound),
            e.confidence_interval,
        };
      };
      std::vector<Duration> samples2;
      samples2.reserve(samples.size());
      std::transform(samples.begin(), samples.end(), std::back_inserter(samples2),
                     [](double d) { return Duration(d); });
      return {
          std::move(samples2),
          wrap_estimate(analysis.mean),
          wrap_estimate(analysis.standard_deviation),
          outliers,
          analysis.outlier_variance,
      };
    }
    else
    {
      std::vector<Duration> samples;
      samples.reserve(last - first);
  
      Duration mean = Duration(0);
      int i         = 0;
      for (auto it = first; it < last; ++it, ++i)
      {
        samples.push_back(Duration(*it));
        mean += Duration(*it);
      }
      mean /= i;
  
      return {std::move(samples), Estimate<Duration>{mean, mean, mean, 0.0},
              Estimate<Duration>{Duration(0), Duration(0), Duration(0), 0.0},
              OutlierClassification{}, 0.0};
    }
  }
  } // namespace Detail
  } // namespace Benchmark
  } // namespace Catch
  
  // end catch_analyse.hpp
  #include <algorithm>
  #include <cmath>
  #include <functional>
  #include <string>
  #include <vector>
  
  namespace Catch
  {
  namespace Benchmark
  {
  struct Benchmark
  {
    Benchmark(std::string &&name) : name(std::move(name)) {}
  
    template<class FUN>
    Benchmark(std::string &&name, FUN &&func)
        : fun(std::move(func)), name(std::move(name))
    {}
  
    template<typename Clock>
    ExecutionPlan<FloatDuration<Clock>>
    prepare(const IConfig &cfg, Environment<FloatDuration<Clock>> env) const
    {
      auto min_time = env.clock_resolution.mean * Detail::minimum_ticks;
      auto run_time =
          std::max(min_time, std::chrono::duration_cast<decltype(min_time)>(
                                 cfg.benchmarkWarmupTime()));
      auto &&test = Detail::run_for_at_least<Clock>(
          std::chrono::duration_cast<ClockDuration<Clock>>(run_time), 1, fun);
      int new_iters =
          static_cast<int>(std::ceil(min_time * test.iterations / test.elapsed));
      return {new_iters,
              test.elapsed / test.iterations * new_iters * cfg.benchmarkSamples(),
              fun,
              std::chrono::duration_cast<FloatDuration<Clock>>(
                  cfg.benchmarkWarmupTime()),
              Detail::warmup_iterations};
    }
  
    template<typename Clock = default_clock>
    void run()
    {
      IConfigPtr cfg = getCurrentContext().getConfig();
  
      auto env = Detail::measure_environment<Clock>();
  
      getResultCapture().benchmarkPreparing(name);
      CATCH_TRY
      {
        auto plan = user_code([&] { return prepare<Clock>(*cfg, env); });
  
        BenchmarkInfo info{name,
                           plan.estimated_duration.count(),
                           plan.iterations_per_sample,
                           cfg->benchmarkSamples(),
                           cfg->benchmarkResamples(),
                           env.clock_resolution.mean.count(),
                           env.clock_cost.mean.count()};
  
        getResultCapture().benchmarkStarting(info);
  
        auto samples =
            user_code([&] { return plan.template run<Clock>(*cfg, env); });
  
        auto analysis =
            Detail::analyse(*cfg, env, samples.begin(), samples.end());
        BenchmarkStats<FloatDuration<Clock>> stats{info,
                                                   analysis.samples,
                                                   analysis.mean,
                                                   analysis.standard_deviation,
                                                   analysis.outliers,
                                                   analysis.outlier_variance};
        getResultCapture().benchmarkEnded(stats);
      }
      CATCH_CATCH_ALL
      {
        if (translateActiveException() !=
            Detail::benchmarkErrorMsg) // benchmark errors have been reported,
                                       // otherwise rethrow.
          std::rethrow_exception(std::current_exception());
      }
    }
  
    // sets lambda to be used in fun *and* executes benchmark!
    template<typename Fun,
             typename std::enable_if<!Detail::is_related<Fun, Benchmark>::value,
                                     int>::type = 0>
    Benchmark &operator=(Fun func)
    {
      fun = Detail::BenchmarkFunction(func);
      run();
      return *this;
    }
  
    explicit operator bool() { return true; }
  
  private:
    Detail::BenchmarkFunction fun;
    std::string name;
  };
  } // namespace Benchmark
  } // namespace Catch
  
  #define INTERNAL_CATCH_GET_1_ARG(arg1, arg2, ...) arg1
  #define INTERNAL_CATCH_GET_2_ARG(arg1, arg2, ...) arg2
  
  #define INTERNAL_CATCH_BENCHMARK(BenchmarkName, name, benchmarkIndex) \
    if (Catch::Benchmark::Benchmark BenchmarkName{name})                \
    BenchmarkName = [&](int benchmarkIndex)
  
  #define INTERNAL_CATCH_BENCHMARK_ADVANCED(BenchmarkName, name) \
    if (Catch::Benchmark::Benchmark BenchmarkName{name})         \
    BenchmarkName = [&]
  
  // end catch_benchmark.hpp
  // start catch_constructor.hpp
  
  // Constructor and destructor helpers
  
  #include <type_traits>
  
  namespace Catch
  {
  namespace Benchmark
  {
  namespace Detail
  {
  template<typename T, bool Destruct>
  struct ObjectStorage
  {
    using TStorage =
        typename std::aligned_storage<sizeof(T),
                                      std::alignment_of<T>::value>::type;
  
    ObjectStorage() : data() {}
  
    ObjectStorage(const ObjectStorage &other)
    {
      new (&data) T(other.stored_object());
    }
  
    ObjectStorage(ObjectStorage &&other)
    {
      new (&data) T(std::move(other.stored_object()));
    }
  
    ~ObjectStorage() { destruct_on_exit<T>(); }
  
    template<typename... Args>
    void construct(Args &&... args)
    {
      new (&data) T(std::forward<Args>(args)...);
    }
  
    template<bool AllowManualDestruction = !Destruct>
    typename std::enable_if<AllowManualDestruction>::type destruct()
    {
      stored_object().~T();
    }
  
  private:
    // If this is a constructor benchmark, destruct the underlying object
    template<typename U>
    void destruct_on_exit(typename std::enable_if<Destruct, U>::type * = 0)
    {
      destruct<true>();
    }
    // Otherwise, don't
    template<typename U>
    void destruct_on_exit(typename std::enable_if<!Destruct, U>::type * = 0)
    {}
  
    T &stored_object() { return *static_cast<T *>(static_cast<void *>(&data)); }
  
    T const &stored_object() const
    {
      return *static_cast<T *>(static_cast<void *>(&data));
    }
  
    TStorage data;
  };
  } // namespace Detail
  
  template<typename T>
  using storage_for = Detail::ObjectStorage<T, true>;
  
  template<typename T>
  using destructable_object = Detail::ObjectStorage<T, false>;
  } // namespace Benchmark
  } // namespace Catch
  
  // end catch_constructor.hpp
  // end catch_benchmarking_all.hpp
  #endif
  
  #endif // ! CATCH_CONFIG_IMPL_ONLY
  
  #ifdef CATCH_IMPL
  // start catch_impl.hpp
  
  #ifdef __clang__
  #pragma clang diagnostic push
  #pragma clang diagnostic ignored "-Wweak-vtables"
  #endif
  
  // Keep these here for external reporters
  // start catch_test_case_tracker.h
  
  #include <memory>
  #include <string>
  #include <vector>
  
  namespace Catch
  {
  namespace TestCaseTracking
  {
  struct NameAndLocation
  {
    std::string name;
    SourceLineInfo location;
  
    NameAndLocation(std::string const &_name, SourceLineInfo const &_location);
  };
  
  struct ITracker;
  
  using ITrackerPtr = std::shared_ptr<ITracker>;
  
  struct ITracker
  {
    virtual ~ITracker();
  
    // static queries
    virtual NameAndLocation const &nameAndLocation() const = 0;
  
    // dynamic queries
    virtual bool isComplete() const = 0; // Successfully completed or failed
    virtual bool isSuccessfullyCompleted() const = 0;
    virtual bool isOpen() const                  = 0; // Started but not complete
    virtual bool hasChildren() const             = 0;
  
    virtual ITracker &parent() = 0;
  
    // actions
    virtual void close()                   = 0; // Successfully complete
    virtual void fail()                    = 0;
    virtual void markAsNeedingAnotherRun() = 0;
  
    virtual void addChild(ITrackerPtr const &child)                       = 0;
    virtual ITrackerPtr findChild(NameAndLocation const &nameAndLocation) = 0;
    virtual void openChild()                                              = 0;
  
    // Debug/ checking
    virtual bool isSectionTracker() const   = 0;
    virtual bool isGeneratorTracker() const = 0;
  };
  
  class TrackerContext
  {
    enum RunState
    {
      NotStarted,
      Executing,
      CompletedCycle
    };
  
    ITrackerPtr m_rootTracker;
    ITracker *m_currentTracker = nullptr;
    RunState m_runState        = NotStarted;
  
  public:
    ITracker &startRun();
    void endRun();
  
    void startCycle();
    void completeCycle();
  
    bool completedCycle() const;
    ITracker &currentTracker();
    void setCurrentTracker(ITracker *tracker);
  };
  
  class TrackerBase : public ITracker
  {
  protected:
    enum CycleState
    {
      NotStarted,
      Executing,
      ExecutingChildren,
      NeedsAnotherRun,
      CompletedSuccessfully,
      Failed
    };
  
    using Children = std::vector<ITrackerPtr>;
    NameAndLocation m_nameAndLocation;
    TrackerContext &m_ctx;
    ITracker *m_parent;
    Children m_children;
    CycleState m_runState = NotStarted;
  
  public:
    TrackerBase(NameAndLocation const &nameAndLocation, TrackerContext &ctx,
                ITracker *parent);
  
    NameAndLocation const &nameAndLocation() const override;
    bool isComplete() const override;
    bool isSuccessfullyCompleted() const override;
    bool isOpen() const override;
    bool hasChildren() const override;
  
    void addChild(ITrackerPtr const &child) override;
  
    ITrackerPtr findChild(NameAndLocation const &nameAndLocation) override;
    ITracker &parent() override;
  
    void openChild() override;
  
    bool isSectionTracker() const override;
    bool isGeneratorTracker() const override;
  
    void open();
  
    void close() override;
    void fail() override;
    void markAsNeedingAnotherRun() override;
  
  private:
    void moveToParent();
    void moveToThis();
  };
  
  class SectionTracker : public TrackerBase
  {
    std::vector<std::string> m_filters;
    std::string m_trimmed_name;
  
  public:
    SectionTracker(NameAndLocation const &nameAndLocation, TrackerContext &ctx,
                   ITracker *parent);
  
    bool isSectionTracker() const override;
  
    bool isComplete() const override;
  
    static SectionTracker &
    acquire(TrackerContext &ctx, NameAndLocation const &nameAndLocation);
  
    void tryOpen();
  
    void addInitialFilters(std::vector<std::string> const &filters);
    void addNextFilters(std::vector<std::string> const &filters);
  };
  
  } // namespace TestCaseTracking
  
  using TestCaseTracking::ITracker;
  using TestCaseTracking::SectionTracker;
  using TestCaseTracking::TrackerContext;
  
  } // namespace Catch
  
  // end catch_test_case_tracker.h
  
  // start catch_leak_detector.h
  
  namespace Catch
  {
  struct LeakDetector
  {
    LeakDetector();
    ~LeakDetector();
  };
  
  } // namespace Catch
  // end catch_leak_detector.h
  // Cpp files will be included in the single-header file here
  // start catch_stats.cpp
  
  // Statistical analysis tools
  
  #if defined(CATCH_CONFIG_ENABLE_BENCHMARKING)
  
  #include <cassert>
  #include <random>
  
  #if defined(CATCH_CONFIG_USE_ASYNC)
  #include <future>
  #endif
  
  namespace
  {
  double erf_inv(double x)
  {
    // Code accompanying the article "Approximating the erfinv function" in GPU
    // Computing Gems, Volume 2
    double w, p;
  
    w = -log((1.0 - x) * (1.0 + x));
  
    if (w < 6.250000)
    {
      w = w - 3.125000;
      p = -3.6444120640178196996e-21;
      p = -1.685059138182016589e-19 + p * w;
      p = 1.2858480715256400167e-18 + p * w;
      p = 1.115787767802518096e-17 + p * w;
      p = -1.333171662854620906e-16 + p * w;
      p = 2.0972767875968561637e-17 + p * w;
      p = 6.6376381343583238325e-15 + p * w;
      p = -4.0545662729752068639e-14 + p * w;
      p = -8.1519341976054721522e-14 + p * w;
      p = 2.6335093153082322977e-12 + p * w;
      p = -1.2975133253453532498e-11 + p * w;
      p = -5.4154120542946279317e-11 + p * w;
      p = 1.051212273321532285e-09 + p * w;
      p = -4.1126339803469836976e-09 + p * w;
      p = -2.9070369957882005086e-08 + p * w;
      p = 4.2347877827932403518e-07 + p * w;
      p = -1.3654692000834678645e-06 + p * w;
      p = -1.3882523362786468719e-05 + p * w;
      p = 0.0001867342080340571352 + p * w;
      p = -0.00074070253416626697512 + p * w;
      p = -0.0060336708714301490533 + p * w;
      p = 0.24015818242558961693 + p * w;
      p = 1.6536545626831027356 + p * w;
    }
    else if (w < 16.000000)
    {
      w = sqrt(w) - 3.250000;
      p = 2.2137376921775787049e-09;
      p = 9.0756561938885390979e-08 + p * w;
      p = -2.7517406297064545428e-07 + p * w;
      p = 1.8239629214389227755e-08 + p * w;
      p = 1.5027403968909827627e-06 + p * w;
      p = -4.013867526981545969e-06 + p * w;
      p = 2.9234449089955446044e-06 + p * w;
      p = 1.2475304481671778723e-05 + p * w;
      p = -4.7318229009055733981e-05 + p * w;
      p = 6.8284851459573175448e-05 + p * w;
      p = 2.4031110387097893999e-05 + p * w;
      p = -0.0003550375203628474796 + p * w;
      p = 0.00095328937973738049703 + p * w;
      p = -0.0016882755560235047313 + p * w;
      p = 0.0024914420961078508066 + p * w;
      p = -0.0037512085075692412107 + p * w;
      p = 0.005370914553590063617 + p * w;
      p = 1.0052589676941592334 + p * w;
      p = 3.0838856104922207635 + p * w;
    }
    else
    {
      w = sqrt(w) - 5.000000;
      p = -2.7109920616438573243e-11;
      p = -2.5556418169965252055e-10 + p * w;
      p = 1.5076572693500548083e-09 + p * w;
      p = -3.7894654401267369937e-09 + p * w;
      p = 7.6157012080783393804e-09 + p * w;
      p = -1.4960026627149240478e-08 + p * w;
      p = 2.9147953450901080826e-08 + p * w;
      p = -6.7711997758452339498e-08 + p * w;
      p = 2.2900482228026654717e-07 + p * w;
      p = -9.9298272942317002539e-07 + p * w;
      p = 4.5260625972231537039e-06 + p * w;
      p = -1.9681778105531670567e-05 + p * w;
      p = 7.5995277030017761139e-05 + p * w;
      p = -0.00021503011930044477347 + p * w;
      p = -0.00013871931833623122026 + p * w;
      p = 1.0103004648645343977 + p * w;
      p = 4.8499064014085844221 + p * w;
    }
    return p * x;
  }
  
  double standard_deviation(std::vector<double>::iterator first,
                            std::vector<double>::iterator last)
  {
    auto m          = Catch::Benchmark::Detail::mean(first, last);
    double variance = std::accumulate(first, last, 0.,
                                      [m](double a, double b) {
                                        double diff = b - m;
                                        return a + diff * diff;
                                      }) /
                      (last - first);
    return std::sqrt(variance);
  }
  
  } // namespace
  
  namespace Catch
  {
  namespace Benchmark
  {
  namespace Detail
  {
  double weighted_average_quantile(int k, int q,
                                   std::vector<double>::iterator first,
                                   std::vector<double>::iterator last)
  {
    auto count = last - first;
    double idx = (count - 1) * k / static_cast<double>(q);
    int j      = static_cast<int>(idx);
    double g   = idx - j;
    std::nth_element(first, first + j, last);
    auto xj = first[j];
    if (g == 0)
      return xj;
  
    auto xj1 = *std::min_element(first + (j + 1), last);
    return xj + g * (xj1 - xj);
  }
  
  double erfc_inv(double x) { return erf_inv(1.0 - x); }
  
  double normal_quantile(double p)
  {
    static const double ROOT_TWO = std::sqrt(2.0);
  
    double result = 0.0;
    assert(p >= 0 && p <= 1);
    if (p < 0 || p > 1)
    {
      return result;
    }
  
    result = -erfc_inv(2.0 * p);
    // result *= normal distribution standard deviation (1.0) * sqrt(2)
    result *= /*sd * */ ROOT_TWO;
    // result += normal disttribution mean (0)
    return result;
  }
  
  double outlier_variance(Estimate<double> mean, Estimate<double> stddev, int n)
  {
    double sb     = stddev.point;
    double mn     = mean.point / n;
    double mg_min = mn / 2.;
    double sg     = std::min(mg_min / 4., sb / std::sqrt(n));
    double sg2    = sg * sg;
    double sb2    = sb * sb;
  
    auto c_max = [n, mn, sb2, sg2](double x) -> double {
      double k   = mn - x;
      double d   = k * k;
      double nd  = n * d;
      double k0  = -n * nd;
      double k1  = sb2 - n * sg2 + nd;
      double det = k1 * k1 - 4 * sg2 * k0;
      return (int)(-2. * k0 / (k1 + std::sqrt(det)));
    };
  
    auto var_out = [n, sb2, sg2](double c) {
      double nc = n - c;
      return (nc / n) * (sb2 - nc * sg2);
    };
  
    return std::min(var_out(1), var_out(std::min(c_max(0.), c_max(mg_min)))) /
           sb2;
  }
  
  bootstrap_analysis analyse_samples(double confidence_level, int n_resamples,
                                     std::vector<double>::iterator first,
                                     std::vector<double>::iterator last)
  {
    CATCH_INTERNAL_START_WARNINGS_SUPPRESSION
    CATCH_INTERNAL_SUPPRESS_GLOBALS_WARNINGS
    static std::random_device entropy;
    CATCH_INTERNAL_STOP_WARNINGS_SUPPRESSION
  
    auto n = static_cast<int>(
        last -
        first); // seriously, one can't use integral types without hell in C++
  
    auto mean   = &Detail::mean<std::vector<double>::iterator>;
    auto stddev = &standard_deviation;
  
  #if defined(CATCH_CONFIG_USE_ASYNC)
    auto Estimate = [=](double (*f)(std::vector<double>::iterator,
                                    std::vector<double>::iterator)) {
      auto seed = entropy();
      return std::async(std::launch::async, [=] {
        std::mt19937 rng(seed);
        auto resampled = resample(rng, n_resamples, first, last, f);
        return bootstrap(confidence_level, first, last, resampled, f);
      });
    };
  
    auto mean_future   = Estimate(mean);
    auto stddev_future = Estimate(stddev);
  
    auto mean_estimate   = mean_future.get();
    auto stddev_estimate = stddev_future.get();
  #else
    auto Estimate = [=](double (*f)(std::vector<double>::iterator,
                                    std::vector<double>::iterator)) {
      auto seed = entropy();
      std::mt19937 rng(seed);
      auto resampled = resample(rng, n_resamples, first, last, f);
      return bootstrap(confidence_level, first, last, resampled, f);
    };
  
    auto mean_estimate   = Estimate(mean);
    auto stddev_estimate = Estimate(stddev);
  #endif // CATCH_USE_ASYNC
  
    double outlier_variance =
        Detail::outlier_variance(mean_estimate, stddev_estimate, n);
  
    return {mean_estimate, stddev_estimate, outlier_variance};
  }
  } // namespace Detail
  } // namespace Benchmark
  } // namespace Catch
  
  #endif // CATCH_CONFIG_ENABLE_BENCHMARKING
  // end catch_stats.cpp
  // start catch_approx.cpp
  
  #include <cmath>
  #include <limits>
  
  namespace
  {
  // Performs equivalent check of std::fabs(lhs - rhs) <= margin
  // But without the subtraction to allow for INFINITY in comparison
  bool marginComparison(double lhs, double rhs, double margin)
  {
    return (lhs + margin >= rhs) && (rhs + margin >= lhs);
  }
  
  } // namespace
  
  namespace Catch
  {
  namespace Detail
  {
  Approx::Approx(double value)
      : m_epsilon(std::numeric_limits<float>::epsilon() * 100), m_margin(0.0),
        m_scale(0.0), m_value(value)
  {}
  
  Approx Approx::custom() { return Approx(0); }
  
  Approx Approx::operator-() const
  {
    auto temp(*this);
    temp.m_value = -temp.m_value;
    return temp;
  }
  
  std::string Approx::toString() const
  {
    ReusableStringStream rss;
    rss << "Approx( " << ::Catch::Detail::stringify(m_value) << " )";
    return rss.str();
  }
  
  bool Approx::equalityComparisonImpl(const double other) const
  {
    // First try with fixed margin, then compute margin based on epsilon, scale
    // and Approx's value Thanks to Richard Harris for his help refining the
    // scaled margin value
    return marginComparison(m_value, other, m_margin) ||
           marginComparison(
               m_value, other,
               m_epsilon *
                   (m_scale + std::fabs(std::isinf(m_value) ? 0 : m_value)));
  }
  
  void Approx::setMargin(double newMargin)
  {
    CATCH_ENFORCE(newMargin >= 0,
                  "Invalid Approx::margin: "
                      << newMargin << '.'
                      << " Approx::Margin has to be non-negative.");
    m_margin = newMargin;
  }
  
  void Approx::setEpsilon(double newEpsilon)
  {
    CATCH_ENFORCE(newEpsilon >= 0 && newEpsilon <= 1.0,
                  "Invalid Approx::epsilon: "
                      << newEpsilon << '.'
                      << " Approx::epsilon has to be in [0, 1]");
    m_epsilon = newEpsilon;
  }
  
  } // end namespace Detail
  
  namespace literals
  {
  Detail::Approx operator"" _a(long double val) { return Detail::Approx(val); }
  Detail::Approx operator"" _a(unsigned long long val)
  {
    return Detail::Approx(val);
  }
  } // end namespace literals
  
  std::string
  StringMaker<Catch::Detail::Approx>::convert(Catch::Detail::Approx const &value)
  {
    return value.toString();
  }
  
  } // end namespace Catch
  // end catch_approx.cpp
  // start catch_assertionhandler.cpp
  
  // start catch_debugger.h
  
  namespace Catch
  {
  bool isDebuggerActive();
  }
  
  #ifdef CATCH_PLATFORM_MAC
  
  #define CATCH_TRAP() __asm__("int $3\n" : :) /* NOLINT */
  
  #elif defined(CATCH_PLATFORM_IPHONE)
  
  // use inline assembler
  #if defined(__i386__) || defined(__x86_64__)
  #define CATCH_TRAP() __asm__("int $3")
  #elif defined(__aarch64__)
  #define CATCH_TRAP() __asm__(".inst 0xd4200000")
  #elif defined(__arm__) && !defined(__thumb__)
  #define CATCH_TRAP() __asm__(".inst 0xe7f001f0")
  #elif defined(__arm__) && defined(__thumb__)
  #define CATCH_TRAP() __asm__(".inst 0xde01")
  #endif
  
  #elif defined(CATCH_PLATFORM_LINUX)
  // If we can use inline assembler, do it because this allows us to break
  // directly at the location of the failing check instead of breaking inside
  // raise() called from it, i.e. one stack frame below.
  #if defined(__GNUC__) && (defined(__i386) || defined(__x86_64))
  #define CATCH_TRAP() asm volatile("int $3") /* NOLINT */
  #else                                       // Fall back to the generic way.
  #include <signal.h>
  
  #define CATCH_TRAP() raise(SIGTRAP)
  #endif
  #elif defined(_MSC_VER)
  #define CATCH_TRAP() __debugbreak()
  #elif defined(__MINGW32__)
  extern "C" __declspec(dllimport) void __stdcall DebugBreak();
  #define CATCH_TRAP() DebugBreak()
  #endif
  
  #ifndef CATCH_BREAK_INTO_DEBUGGER
  #ifdef CATCH_TRAP
  #define CATCH_BREAK_INTO_DEBUGGER() \
    [] {                              \
      if (Catch::isDebuggerActive())  \
      {                               \
        CATCH_TRAP();                 \
      }                               \
    }()
  #else
  #define CATCH_BREAK_INTO_DEBUGGER() [] {}()
  #endif
  #endif
  
  // end catch_debugger.h
  // start catch_run_context.h
  
  // start catch_fatal_condition.h
  
  // start catch_windows_h_proxy.h
  
  #if defined(CATCH_PLATFORM_WINDOWS)
  
  #if !defined(NOMINMAX) && !defined(CATCH_CONFIG_NO_NOMINMAX)
  #define CATCH_DEFINED_NOMINMAX
  #define NOMINMAX
  #endif
  #if !defined(WIN32_LEAN_AND_MEAN) && \
      !defined(CATCH_CONFIG_NO_WIN32_LEAN_AND_MEAN)
  #define CATCH_DEFINED_WIN32_LEAN_AND_MEAN
  #define WIN32_LEAN_AND_MEAN
  #endif
  
  #ifdef __AFXDLL
  #include <AfxWin.h>
  #else
  #include <windows.h>
  #endif
  
  #ifdef CATCH_DEFINED_NOMINMAX
  #undef NOMINMAX
  #endif
  #ifdef CATCH_DEFINED_WIN32_LEAN_AND_MEAN
  #undef WIN32_LEAN_AND_MEAN
  #endif
  
  #endif // defined(CATCH_PLATFORM_WINDOWS)
  
  // end catch_windows_h_proxy.h
  #if defined(CATCH_CONFIG_WINDOWS_SEH)
  
  namespace Catch
  {
  struct FatalConditionHandler
  {
    static LONG CALLBACK
    handleVectoredException(PEXCEPTION_POINTERS ExceptionInfo);
    FatalConditionHandler();
    static void reset();
    ~FatalConditionHandler();
  
  private:
    static bool isSet;
    static ULONG guaranteeSize;
    static PVOID exceptionHandlerHandle;
  };
  
  } // namespace Catch
  
  #elif defined(CATCH_CONFIG_POSIX_SIGNALS)
  
  #include <signal.h>
  
  namespace Catch
  {
  struct FatalConditionHandler
  {
    static bool isSet;
    static struct sigaction oldSigActions[];
    static stack_t oldSigStack;
    static char altStackMem[];
  
    static void handleSignal(int sig);
  
    FatalConditionHandler();
    ~FatalConditionHandler();
    static void reset();
  };
  
  } // namespace Catch
  
  #else
  
  namespace Catch
  {
  struct FatalConditionHandler
  {
    void reset();
  };
  } // namespace Catch
  
  #endif
  
  // end catch_fatal_condition.h
  #include <string>
  
  namespace Catch
  {
  struct IMutableContext;
  
  ///////////////////////////////////////////////////////////////////////////
  
  class RunContext : public IResultCapture, public IRunner
  {
  public:
    RunContext(RunContext const &) = delete;
    RunContext &operator=(RunContext const &) = delete;
  
    explicit RunContext(IConfigPtr const &_config,
                        IStreamingReporterPtr &&reporter);
  
    ~RunContext() override;
  
    void testGroupStarting(std::string const &testSpec, std::size_t groupIndex,
                           std::size_t groupsCount);
    void testGroupEnded(std::string const &testSpec, Totals const &totals,
                        std::size_t groupIndex, std::size_t groupsCount);
  
    Totals runTest(TestCase const &testCase);
  
    IConfigPtr config() const;
    IStreamingReporter &reporter() const;
  
  public: // IResultCapture
    // Assertion handlers
    void handleExpr(AssertionInfo const &info, ITransientExpression const &expr,
                    AssertionReaction &reaction) override;
    void handleMessage(AssertionInfo const &info, ResultWas::OfType resultType,
                       StringRef const &message,
                       AssertionReaction &reaction) override;
    void handleUnexpectedExceptionNotThrown(AssertionInfo const &info,
                                            AssertionReaction &reaction) override;
    void handleUnexpectedInflightException(AssertionInfo const &info,
                                           std::string const &message,
                                           AssertionReaction &reaction) override;
    void handleIncomplete(AssertionInfo const &info) override;
    void handleNonExpr(AssertionInfo const &info, ResultWas::OfType resultType,
                       AssertionReaction &reaction) override;
  
    bool
    sectionStarted(SectionInfo const &sectionInfo, Counts &assertions) override;
  
    void sectionEnded(SectionEndInfo const &endInfo) override;
    void sectionEndedEarly(SectionEndInfo const &endInfo) override;
  
    auto acquireGeneratorTracker(SourceLineInfo const &lineInfo)
        -> IGeneratorTracker & override;
  
  #if defined(CATCH_CONFIG_ENABLE_BENCHMARKING)
    void benchmarkPreparing(std::string const &name) override;
    void benchmarkStarting(BenchmarkInfo const &info) override;
    void benchmarkEnded(BenchmarkStats<> const &stats) override;
    void benchmarkFailed(std::string const &error) override;
  #endif // CATCH_CONFIG_ENABLE_BENCHMARKING
  
    void pushScopedMessage(MessageInfo const &message) override;
    void popScopedMessage(MessageInfo const &message) override;
  
    void emplaceUnscopedMessage(MessageBuilder const &builder) override;
  
    std::string getCurrentTestName() const override;
  
    const AssertionResult *getLastResult() const override;
  
    void exceptionEarlyReported() override;
  
    void handleFatalErrorCondition(StringRef message) override;
  
    bool lastAssertionPassed() override;
  
    void assertionPassed() override;
  
  public:
    // !TBD We need to do this another way!
    bool aborting() const final;
  
  private:
    void runCurrentTest(std::string &redirectedCout, std::string &redirectedCerr);
    void invokeActiveTestCase();
  
    void resetAssertionInfo();
    bool testForMissingAssertions(Counts &assertions);
  
    void assertionEnded(AssertionResult const &result);
    void reportExpr(AssertionInfo const &info, ResultWas::OfType resultType,
                    ITransientExpression const *expr, bool negated);
  
    void populateReaction(AssertionReaction &reaction);
  
  private:
    void handleUnfinishedSections();
  
    TestRunInfo m_runInfo;
    IMutableContext &m_context;
    TestCase const *m_activeTestCase = nullptr;
    ITracker *m_testCaseTracker      = nullptr;
    Option<AssertionResult> m_lastResult;
  
    IConfigPtr m_config;
    Totals m_totals;
    IStreamingReporterPtr m_reporter;
    std::vector<MessageInfo> m_messages;
    std::vector<ScopedMessage>
        m_messageScopes; /* Keeps owners of so-called unscoped messages. */
    AssertionInfo m_lastAssertionInfo;
    std::vector<SectionEndInfo> m_unfinishedSections;
    std::vector<ITracker *> m_activeSections;
    TrackerContext m_trackerContext;
    bool m_lastAssertionPassed    = false;
    bool m_shouldReportUnexpected = true;
    bool m_includeSuccessfulResults;
  };
  
  void seedRng(IConfig const &config);
  unsigned int rngSeed();
  } // end namespace Catch
  
  // end catch_run_context.h
  namespace Catch
  {
  namespace
  {
  auto operator<<(std::ostream &os, ITransientExpression const &expr)
      -> std::ostream &
  {
    expr.streamReconstructedExpression(os);
    return os;
  }
  } // namespace
  
  LazyExpression::LazyExpression(bool isNegated) : m_isNegated(isNegated) {}
  
  LazyExpression::LazyExpression(LazyExpression const &other)
      : m_isNegated(other.m_isNegated)
  {}
  
  LazyExpression::operator bool() const
  {
    return m_transientExpression != nullptr;
  }
  
  auto operator<<(std::ostream &os, LazyExpression const &lazyExpr)
      -> std::ostream &
  {
    if (lazyExpr.m_isNegated)
      os << "!";
  
    if (lazyExpr)
    {
      if (lazyExpr.m_isNegated &&
          lazyExpr.m_transientExpression->isBinaryExpression())
        os << "(" << *lazyExpr.m_transientExpression << ")";
      else
        os << *lazyExpr.m_transientExpression;
    }
    else
    {
      os << "{** error - unchecked empty expression requested **}";
    }
    return os;
  }
  
  AssertionHandler::AssertionHandler(StringRef const &macroName,
                                     SourceLineInfo const &lineInfo,
                                     StringRef capturedExpression,
                                     ResultDisposition::Flags resultDisposition)
      : m_assertionInfo{macroName, lineInfo, capturedExpression,
                        resultDisposition},
        m_resultCapture(getResultCapture())
  {}
  
  void AssertionHandler::handleExpr(ITransientExpression const &expr)
  {
    m_resultCapture.handleExpr(m_assertionInfo, expr, m_reaction);
  }
  void AssertionHandler::handleMessage(ResultWas::OfType resultType,
                                       StringRef const &message)
  {
    m_resultCapture.handleMessage(m_assertionInfo, resultType, message,
                                  m_reaction);
  }
  
  auto AssertionHandler::allowThrows() const -> bool
  {
    return getCurrentContext().getConfig()->allowThrows();
  }
  
  void AssertionHandler::complete()
  {
    setCompleted();
    if (m_reaction.shouldDebugBreak)
    {
      // If you find your debugger stopping you here then go one level up on the
      // call-stack for the code that caused it (typically a failed assertion)
  
      // (To go back to the test and change execution, jump over the throw, next)
      CATCH_BREAK_INTO_DEBUGGER();
    }
    if (m_reaction.shouldThrow)
    {
  #if !defined(CATCH_CONFIG_DISABLE_EXCEPTIONS)
      throw Catch::TestFailureException();
  #else
      CATCH_ERROR("Test failure requires aborting test!");
  #endif
    }
  }
  void AssertionHandler::setCompleted() { m_completed = true; }
  
  void AssertionHandler::handleUnexpectedInflightException()
  {
    m_resultCapture.handleUnexpectedInflightException(
        m_assertionInfo, Catch::translateActiveException(), m_reaction);
  }
  
  void AssertionHandler::handleExceptionThrownAsExpected()
  {
    m_resultCapture.handleNonExpr(m_assertionInfo, ResultWas::Ok, m_reaction);
  }
  void AssertionHandler::handleExceptionNotThrownAsExpected()
  {
    m_resultCapture.handleNonExpr(m_assertionInfo, ResultWas::Ok, m_reaction);
  }
  
  void AssertionHandler::handleUnexpectedExceptionNotThrown()
  {
    m_resultCapture.handleUnexpectedExceptionNotThrown(m_assertionInfo,
                                                       m_reaction);
  }
  
  void AssertionHandler::handleThrowingCallSkipped()
  {
    m_resultCapture.handleNonExpr(m_assertionInfo, ResultWas::Ok, m_reaction);
  }
  
  // This is the overload that takes a string and infers the Equals matcher from
  // it The more general overload, that takes any string matcher, is in
  // catch_capture_matchers.cpp
  void handleExceptionMatchExpr(AssertionHandler &handler, std::string const &str,
                                StringRef const &matcherString)
  {
    handleExceptionMatchExpr(handler, Matchers::Equals(str), matcherString);
  }
  
  } // namespace Catch
  // end catch_assertionhandler.cpp
  // start catch_assertionresult.cpp
  
  namespace Catch
  {
  AssertionResultData::AssertionResultData(ResultWas::OfType _resultType,
                                           LazyExpression const &_lazyExpression)
      : lazyExpression(_lazyExpression), resultType(_resultType)
  {}
  
  std::string AssertionResultData::reconstructExpression() const
  {
    if (reconstructedExpression.empty())
    {
      if (lazyExpression)
      {
        ReusableStringStream rss;
        rss << lazyExpression;
        reconstructedExpression = rss.str();
      }
    }
    return reconstructedExpression;
  }
  
  AssertionResult::AssertionResult(AssertionInfo const &info,
                                   AssertionResultData const &data)
      : m_info(info), m_resultData(data)
  {}
  
  // Result was a success
  bool AssertionResult::succeeded() const
  {
    return Catch::isOk(m_resultData.resultType);
  }
  
  // Result was a success, or failure is suppressed
  bool AssertionResult::isOk() const
  {
    return Catch::isOk(m_resultData.resultType) ||
           shouldSuppressFailure(m_info.resultDisposition);
  }
  
  ResultWas::OfType AssertionResult::getResultType() const
  {
    return m_resultData.resultType;
  }
  
  bool AssertionResult::hasExpression() const
  {
    return !m_info.capturedExpression.empty();
  }
  
  bool AssertionResult::hasMessage() const
  {
    return !m_resultData.message.empty();
  }
  
  std::string AssertionResult::getExpression() const
  {
    // Possibly overallocating by 3 characters should be basically free
    std::string expr;
    expr.reserve(m_info.capturedExpression.size() + 3);
    if (isFalseTest(m_info.resultDisposition))
    {
      expr += "!(";
    }
    expr += m_info.capturedExpression;
    if (isFalseTest(m_info.resultDisposition))
    {
      expr += ')';
    }
    return expr;
  }
  
  std::string AssertionResult::getExpressionInMacro() const
  {
    std::string expr;
    if (m_info.macroName.empty())
      expr = static_cast<std::string>(m_info.capturedExpression);
    else
    {
      expr.reserve(m_info.macroName.size() + m_info.capturedExpression.size() +
                   4);
      expr += m_info.macroName;
      expr += "( ";
      expr += m_info.capturedExpression;
      expr += " )";
    }
    return expr;
  }
  
  bool AssertionResult::hasExpandedExpression() const
  {
    return hasExpression() && getExpandedExpression() != getExpression();
  }
  
  std::string AssertionResult::getExpandedExpression() const
  {
    std::string expr = m_resultData.reconstructExpression();
    return expr.empty() ? getExpression() : expr;
  }
  
  std::string AssertionResult::getMessage() const { return m_resultData.message; }
  SourceLineInfo AssertionResult::getSourceInfo() const
  {
    return m_info.lineInfo;
  }
  
  StringRef AssertionResult::getTestMacroName() const { return m_info.macroName; }
  
  } // end namespace Catch
  // end catch_assertionresult.cpp
  // start catch_capture_matchers.cpp
  
  namespace Catch
  {
  using StringMatcher = Matchers::Impl::MatcherBase<std::string>;
  
  // This is the general overload that takes a any string matcher
  // There is another overload, in catch_assertionhandler.h/.cpp, that only takes
  // a string and infers the Equals matcher (so the header does not mention
  // matchers)
  void handleExceptionMatchExpr(AssertionHandler &handler,
                                StringMatcher const &matcher,
                                StringRef const &matcherString)
  {
    std::string exceptionMessage = Catch::translateActiveException();
    MatchExpr<std::string, StringMatcher const &> expr(exceptionMessage, matcher,
                                                       matcherString);
    handler.handleExpr(expr);
  }
  
  } // namespace Catch
  // end catch_capture_matchers.cpp
  // start catch_commandline.cpp
  
  // start catch_commandline.h
  
  // start catch_clara.h
  
  // Use Catch's value for console width (store Clara's off to the side, if
  // present)
  #ifdef CLARA_CONFIG_CONSOLE_WIDTH
  #define CATCH_TEMP_CLARA_CONFIG_CONSOLE_WIDTH \
    CATCH_CLARA_TEXTFLOW_CONFIG_CONSOLE_WIDTH
  #undef CATCH_CLARA_TEXTFLOW_CONFIG_CONSOLE_WIDTH
  #endif
  #define CATCH_CLARA_TEXTFLOW_CONFIG_CONSOLE_WIDTH CATCH_CONFIG_CONSOLE_WIDTH - 1
  
  #ifdef __clang__
  #pragma clang diagnostic push
  #pragma clang diagnostic ignored "-Wweak-vtables"
  #pragma clang diagnostic ignored "-Wexit-time-destructors"
  #pragma clang diagnostic ignored "-Wshadow"
  #endif
  
  // start clara.hpp
  // Copyright 2017 Two Blue Cubes Ltd. All rights reserved.
  //
  // Distributed under the Boost Software License, Version 1.0. (See accompanying
  // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
  //
  // See https://github.com/philsquared/Clara for more details
  
  // Clara v1.1.5
  
  #ifndef CATCH_CLARA_CONFIG_CONSOLE_WIDTH
  #define CATCH_CLARA_CONFIG_CONSOLE_WIDTH 80
  #endif
  
  #ifndef CATCH_CLARA_TEXTFLOW_CONFIG_CONSOLE_WIDTH
  #define CATCH_CLARA_TEXTFLOW_CONFIG_CONSOLE_WIDTH \
    CATCH_CLARA_CONFIG_CONSOLE_WIDTH
  #endif
  
  #ifndef CLARA_CONFIG_OPTIONAL_TYPE
  #ifdef __has_include
  #if __has_include(<optional>) && __cplusplus >= 201703L
  #include <optional>
  #define CLARA_CONFIG_OPTIONAL_TYPE std::optional
  #endif
  #endif
  #endif
  
  // ----------- #included from clara_textflow.hpp -----------
  
  // TextFlowCpp
  //
  // A single-header library for wrapping and laying out basic text, by Phil Nash
  //
  // Distributed under the Boost Software License, Version 1.0. (See accompanying
  // file LICENSE.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
  //
  // This project is hosted at https://github.com/philsquared/textflowcpp
  
  #include <cassert>
  #include <ostream>
  #include <sstream>
  #include <vector>
  
  #ifndef CATCH_CLARA_TEXTFLOW_CONFIG_CONSOLE_WIDTH
  #define CATCH_CLARA_TEXTFLOW_CONFIG_CONSOLE_WIDTH 80
  #endif
  
  namespace Catch
  {
  namespace clara
  {
  namespace TextFlow
  {
  inline auto isWhitespace(char c) -> bool
  {
    static std::string chars = " \t\n\r";
    return chars.find(c) != std::string::npos;
  }
  inline auto isBreakableBefore(char c) -> bool
  {
    static std::string chars = "[({<|";
    return chars.find(c) != std::string::npos;
  }
  inline auto isBreakableAfter(char c) -> bool
  {
    static std::string chars = "])}>.,:;*+-=&/\\";
    return chars.find(c) != std::string::npos;
  }
  
  class Columns;
  
  class Column
  {
    std::vector<std::string> m_strings;
    size_t m_width         = CATCH_CLARA_TEXTFLOW_CONFIG_CONSOLE_WIDTH;
    size_t m_indent        = 0;
    size_t m_initialIndent = std::string::npos;
  
  public:
    class iterator
    {
      friend Column;
  
      Column const &m_column;
      size_t m_stringIndex = 0;
      size_t m_pos         = 0;
  
      size_t m_len  = 0;
      size_t m_end  = 0;
      bool m_suffix = false;
  
      iterator(Column const &column, size_t stringIndex)
          : m_column(column), m_stringIndex(stringIndex)
      {}
  
      auto line() const -> std::string const &
      {
        return m_column.m_strings[m_stringIndex];
      }
  
      auto isBoundary(size_t at) const -> bool
      {
        assert(at > 0);
        assert(at <= line().size());
  
        return at == line().size() ||
               (isWhitespace(line()[at]) && !isWhitespace(line()[at - 1])) ||
               isBreakableBefore(line()[at]) || isBreakableAfter(line()[at - 1]);
      }
  
      void calcLength()
      {
        assert(m_stringIndex < m_column.m_strings.size());
  
        m_suffix   = false;
        auto width = m_column.m_width - indent();
        m_end      = m_pos;
        if (line()[m_pos] == '\n')
        {
          ++m_end;
        }
        while (m_end < line().size() && line()[m_end] != '\n')
          ++m_end;
  
        if (m_end < m_pos + width)
        {
          m_len = m_end - m_pos;
        }
        else
        {
          size_t len = width;
          while (len > 0 && !isBoundary(m_pos + len))
            --len;
          while (len > 0 && isWhitespace(line()[m_pos + len - 1]))
            --len;
  
          if (len > 0)
          {
            m_len = len;
          }
          else
          {
            m_suffix = true;
            m_len    = width - 1;
          }
        }
      }
  
      auto indent() const -> size_t
      {
        auto initial = m_pos == 0 && m_stringIndex == 0 ? m_column.m_initialIndent
                                                        : std::string::npos;
        return initial == std::string::npos ? m_column.m_indent : initial;
      }
  
      auto addIndentAndSuffix(std::string const &plain) const -> std::string
      {
        return std::string(indent(), ' ') + (m_suffix ? plain + "-" : plain);
      }
  
    public:
      using difference_type   = std::ptrdiff_t;
      using value_type        = std::string;
      using pointer           = value_type *;
      using reference         = value_type &;
      using iterator_category = std::forward_iterator_tag;
  
      explicit iterator(Column const &column) : m_column(column)
      {
        assert(m_column.m_width > m_column.m_indent);
        assert(m_column.m_initialIndent == std::string::npos ||
               m_column.m_width > m_column.m_initialIndent);
        calcLength();
        if (m_len == 0)
          m_stringIndex++; // Empty string
      }
  
      auto operator*() const -> std::string
      {
        assert(m_stringIndex < m_column.m_strings.size());
        assert(m_pos <= m_end);
        return addIndentAndSuffix(line().substr(m_pos, m_len));
      }
  
      auto operator++() -> iterator &
      {
        m_pos += m_len;
        if (m_pos < line().size() && line()[m_pos] == '\n')
          m_pos += 1;
        else
          while (m_pos < line().size() && isWhitespace(line()[m_pos]))
            ++m_pos;
  
        if (m_pos == line().size())
        {
          m_pos = 0;
          ++m_stringIndex;
        }
        if (m_stringIndex < m_column.m_strings.size())
          calcLength();
        return *this;
      }
      auto operator++(int) -> iterator
      {
        iterator prev(*this);
        operator++();
        return prev;
      }
  
      auto operator==(iterator const &other) const -> bool
      {
        return m_pos == other.m_pos && m_stringIndex == other.m_stringIndex &&
               &m_column == &other.m_column;
      }
      auto operator!=(iterator const &other) const -> bool
      {
        return !operator==(other);
      }
    };
    using const_iterator = iterator;
  
    explicit Column(std::string const &text) { m_strings.push_back(text); }
  
    auto width(size_t newWidth) -> Column &
    {
      assert(newWidth > 0);
      m_width = newWidth;
      return *this;
    }
    auto indent(size_t newIndent) -> Column &
    {
      m_indent = newIndent;
      return *this;
    }
    auto initialIndent(size_t newIndent) -> Column &
    {
      m_initialIndent = newIndent;
      return *this;
    }
  
    auto width() const -> size_t { return m_width; }
    auto begin() const -> iterator { return iterator(*this); }
    auto end() const -> iterator { return {*this, m_strings.size()}; }
  
    inline friend std::ostream &operator<<(std::ostream &os, Column const &col)
    {
      bool first = true;
      for (auto line : col)
      {
        if (first)
          first = false;
        else
          os << "\n";
        os << line;
      }
      return os;
    }
  
    auto operator+(Column const &other) -> Columns;
  
    auto toString() const -> std::string
    {
      std::ostringstream oss;
      oss << *this;
      return oss.str();
    }
  };
  
  class Spacer : public Column
  {
  public:
    explicit Spacer(size_t spaceWidth) : Column("") { width(spaceWidth); }
  };
  
  class Columns
  {
    std::vector<Column> m_columns;
  
  public:
    class iterator
    {
      friend Columns;
      struct EndTag
      {};
  
      std::vector<Column> const &m_columns;
      std::vector<Column::iterator> m_iterators;
      size_t m_activeIterators;
  
      iterator(Columns const &columns, EndTag)
          : m_columns(columns.m_columns), m_activeIterators(0)
      {
        m_iterators.reserve(m_columns.size());
  
        for (auto const &col : m_columns)
          m_iterators.push_back(col.end());
      }
  
    public:
      using difference_type   = std::ptrdiff_t;
      using value_type        = std::string;
      using pointer           = value_type *;
      using reference         = value_type &;
      using iterator_category = std::forward_iterator_tag;
  
      explicit iterator(Columns const &columns)
          : m_columns(columns.m_columns), m_activeIterators(m_columns.size())
      {
        m_iterators.reserve(m_columns.size());
  
        for (auto const &col : m_columns)
          m_iterators.push_back(col.begin());
      }
  
      auto operator==(iterator const &other) const -> bool
      {
        return m_iterators == other.m_iterators;
      }
      auto operator!=(iterator const &other) const -> bool
      {
        return m_iterators != other.m_iterators;
      }
      auto operator*() const -> std::string
      {
        std::string row, padding;
  
        for (size_t i = 0; i < m_columns.size(); ++i)
        {
          auto width = m_columns[i].width();
          if (m_iterators[i] != m_columns[i].end())
          {
            std::string col = *m_iterators[i];
            row += padding + col;
            if (col.size() < width)
              padding = std::string(width - col.size(), ' ');
            else
              padding = "";
          }
          else
          {
            padding += std::string(width, ' ');
          }
        }
        return row;
      }
      auto operator++() -> iterator &
      {
        for (size_t i = 0; i < m_columns.size(); ++i)
        {
          if (m_iterators[i] != m_columns[i].end())
            ++m_iterators[i];
        }
        return *this;
      }
      auto operator++(int) -> iterator
      {
        iterator prev(*this);
        operator++();
        return prev;
      }
    };
    using const_iterator = iterator;
  
    auto begin() const -> iterator { return iterator(*this); }
    auto end() const -> iterator { return {*this, iterator::EndTag()}; }
  
    auto operator+=(Column const &col) -> Columns &
    {
      m_columns.push_back(col);
      return *this;
    }
    auto operator+(Column const &col) -> Columns
    {
      Columns combined = *this;
      combined += col;
      return combined;
    }
  
    inline friend std::ostream &operator<<(std::ostream &os, Columns const &cols)
    {
      bool first = true;
      for (auto line : cols)
      {
        if (first)
          first = false;
        else
          os << "\n";
        os << line;
      }
      return os;
    }
  
    auto toString() const -> std::string
    {
      std::ostringstream oss;
      oss << *this;
      return oss.str();
    }
  };
  
  inline auto Column::operator+(Column const &other) -> Columns
  {
    Columns cols;
    cols += *this;
    cols += other;
    return cols;
  }
  } // namespace TextFlow
  
  } // namespace clara
  } // namespace Catch
  
  // ----------- end of #include from clara_textflow.hpp -----------
  // ........... back in clara.hpp
  
  #include <algorithm>
  #include <cctype>
  #include <memory>
  #include <set>
  #include <string>
  
  #if !defined(CATCH_PLATFORM_WINDOWS) &&                         \
      (defined(WIN32) || defined(__WIN32__) || defined(_WIN32) || \
       defined(_MSC_VER))
  #define CATCH_PLATFORM_WINDOWS
  #endif
  
  namespace Catch
  {
  namespace clara
  {
  namespace detail
  {
  // Traits for extracting arg and return type of lambdas (for single argument
  // lambdas)
  template<typename L>
  struct UnaryLambdaTraits : UnaryLambdaTraits<decltype(&L::operator())>
  {};
  
  template<typename ClassT, typename ReturnT, typename... Args>
  struct UnaryLambdaTraits<ReturnT (ClassT::*)(Args...) const>
  {
    static const bool isValid = false;
  };
  
  template<typename ClassT, typename ReturnT, typename ArgT>
  struct UnaryLambdaTraits<ReturnT (ClassT::*)(ArgT) const>
  {
    static const bool isValid = true;
    using ArgType             = typename std::remove_const<
        typename std::remove_reference<ArgT>::type>::type;
    using ReturnType = ReturnT;
  };
  
  class TokenStream;
  
  // Transport for raw args (copied from main args, or supplied via init list for
  // testing)
  class Args
  {
    friend TokenStream;
    std::string m_exeName;
    std::vector<std::string> m_args;
  
  public:
    Args(int argc, char const *const *argv)
        : m_exeName(argv[0]), m_args(argv + 1, argv + argc)
    {}
  
    Args(std::initializer_list<std::string> args)
        : m_exeName(*args.begin()), m_args(args.begin() + 1, args.end())
    {}
  
    auto exeName() const -> std::string { return m_exeName; }
  };
  
  // Wraps a token coming from a token stream. These may not directly correspond
  // to strings as a single string may encode an option + its argument if the : or
  // = form is used
  enum class TokenType
  {
    Option,
    Argument
  };
  struct Token
  {
    TokenType type;
    std::string token;
  };
  
  inline auto isOptPrefix(char c) -> bool
  {
    return c == '-'
  #ifdef CATCH_PLATFORM_WINDOWS
           || c == '/'
  #endif
        ;
  }
  
  // Abstracts iterators into args as a stream of tokens, with option arguments
  // uniformly handled
  class TokenStream
  {
    using Iterator = std::vector<std::string>::const_iterator;
    Iterator it;
    Iterator itEnd;
    std::vector<Token> m_tokenBuffer;
  
    void loadBuffer()
    {
      m_tokenBuffer.resize(0);
  
      // Skip any empty strings
      while (it != itEnd && it->empty())
        ++it;
  
      if (it != itEnd)
      {
        auto const &next = *it;
        if (isOptPrefix(next[0]))
        {
          auto delimiterPos = next.find_first_of(" :=");
          if (delimiterPos != std::string::npos)
          {
            m_tokenBuffer.push_back(
                {TokenType::Option, next.substr(0, delimiterPos)});
            m_tokenBuffer.push_back(
                {TokenType::Argument, next.substr(delimiterPos + 1)});
          }
          else
          {
            if (next[1] != '-' && next.size() > 2)
            {
              std::string opt = "- ";
              for (size_t i = 1; i < next.size(); ++i)
              {
                opt[1] = next[i];
                m_tokenBuffer.push_back({TokenType::Option, opt});
              }
            }
            else
            {
              m_tokenBuffer.push_back({TokenType::Option, next});
            }
          }
        }
        else
        {
          m_tokenBuffer.push_back({TokenType::Argument, next});
        }
      }
    }
  
  public:
    explicit TokenStream(Args const &args)
        : TokenStream(args.m_args.begin(), args.m_args.end())
    {}
  
    TokenStream(Iterator it, Iterator itEnd) : it(it), itEnd(itEnd)
    {
      loadBuffer();
    }
  
    explicit operator bool() const
    {
      return !m_tokenBuffer.empty() || it != itEnd;
    }
  
    auto count() const -> size_t { return m_tokenBuffer.size() + (itEnd - it); }
  
    auto operator*() const -> Token
    {
      assert(!m_tokenBuffer.empty());
      return m_tokenBuffer.front();
    }
  
    auto operator-> () const -> Token const *
    {
      assert(!m_tokenBuffer.empty());
      return &m_tokenBuffer.front();
    }
  
    auto operator++() -> TokenStream &
    {
      if (m_tokenBuffer.size() >= 2)
      {
        m_tokenBuffer.erase(m_tokenBuffer.begin());
      }
      else
      {
        if (it != itEnd)
          ++it;
        loadBuffer();
      }
      return *this;
    }
  };
  
  class ResultBase
  {
  public:
    enum Type
    {
      Ok,
      LogicError,
      RuntimeError
    };
  
  protected:
    ResultBase(Type type) : m_type(type) {}
    virtual ~ResultBase() = default;
  
    virtual void enforceOk() const = 0;
  
    Type m_type;
  };
  
  template<typename T>
  class ResultValueBase : public ResultBase
  {
  public:
    auto value() const -> T const &
    {
      enforceOk();
      return m_value;
    }
  
  protected:
    ResultValueBase(Type type) : ResultBase(type) {}
  
    ResultValueBase(ResultValueBase const &other) : ResultBase(other)
    {
      if (m_type == ResultBase::Ok)
        new (&m_value) T(other.m_value);
    }
  
    ResultValueBase(Type, T const &value) : ResultBase(Ok)
    {
      new (&m_value) T(value);
    }
  
    auto operator=(ResultValueBase const &other) -> ResultValueBase &
    {
      if (m_type == ResultBase::Ok)
        m_value.~T();
      ResultBase::operator=(other);
      if (m_type == ResultBase::Ok)
        new (&m_value) T(other.m_value);
      return *this;
    }
  
    ~ResultValueBase() override
    {
      if (m_type == Ok)
        m_value.~T();
    }
  
    union
    {
      T m_value;
    };
  };
  
  template<>
  class ResultValueBase<void> : public ResultBase
  {
  protected:
    using ResultBase::ResultBase;
  };
  
  template<typename T = void>
  class BasicResult : public ResultValueBase<T>
  {
  public:
    template<typename U>
    explicit BasicResult(BasicResult<U> const &other)
        : ResultValueBase<T>(other.type()), m_errorMessage(other.errorMessage())
    {
      assert(type() != ResultBase::Ok);
    }
  
    template<typename U>
    static auto ok(U const &value) -> BasicResult
    {
      return {ResultBase::Ok, value};
    }
    static auto ok() -> BasicResult { return {ResultBase::Ok}; }
    static auto logicError(std::string const &message) -> BasicResult
    {
      return {ResultBase::LogicError, message};
    }
    static auto runtimeError(std::string const &message) -> BasicResult
    {
      return {ResultBase::RuntimeError, message};
    }
  
    explicit operator bool() const { return m_type == ResultBase::Ok; }
    auto type() const -> ResultBase::Type { return m_type; }
    auto errorMessage() const -> std::string { return m_errorMessage; }
  
  protected:
    void enforceOk() const override
    {
      // Errors shouldn't reach this point, but if they do
      // the actual error message will be in m_errorMessage
      assert(m_type != ResultBase::LogicError);
      assert(m_type != ResultBase::RuntimeError);
      if (m_type != ResultBase::Ok)
        std::abort();
    }
  
    std::string m_errorMessage; // Only populated if resultType is an error
  
    BasicResult(ResultBase::Type type, std::string const &message)
        : ResultValueBase<T>(type), m_errorMessage(message)
    {
      assert(m_type != ResultBase::Ok);
    }
  
    using ResultValueBase<T>::ResultValueBase;
    using ResultBase::m_type;
  };
  
  enum class ParseResultType
  {
    Matched,
    NoMatch,
    ShortCircuitAll,
    ShortCircuitSame
  };
  
  class ParseState
  {
  public:
    ParseState(ParseResultType type, TokenStream const &remainingTokens)
        : m_type(type), m_remainingTokens(remainingTokens)
    {}
  
    auto type() const -> ParseResultType { return m_type; }
    auto remainingTokens() const -> TokenStream { return m_remainingTokens; }
  
  private:
    ParseResultType m_type;
    TokenStream m_remainingTokens;
  };
  
  using Result              = BasicResult<void>;
  using ParserResult        = BasicResult<ParseResultType>;
  using InternalParseResult = BasicResult<ParseState>;
  
  struct HelpColumns
  {
    std::string left;
    std::string right;
  };
  
  template<typename T>
  inline auto convertInto(std::string const &source, T &target) -> ParserResult
  {
    std::stringstream ss;
    ss << source;
    ss >> target;
    if (ss.fail())
      return ParserResult::runtimeError("Unable to convert '" + source +
                                        "' to destination type");
    else
      return ParserResult::ok(ParseResultType::Matched);
  }
  inline auto convertInto(std::string const &source, std::string &target)
      -> ParserResult
  {
    target = source;
    return ParserResult::ok(ParseResultType::Matched);
  }
  inline auto convertInto(std::string const &source, bool &target) -> ParserResult
  {
    std::string srcLC = source;
    std::transform(srcLC.begin(), srcLC.end(), srcLC.begin(),
                   [](char c) { return static_cast<char>(std::tolower(c)); });
    if (srcLC == "y" || srcLC == "1" || srcLC == "true" || srcLC == "yes" ||
        srcLC == "on")
      target = true;
    else if (srcLC == "n" || srcLC == "0" || srcLC == "false" || srcLC == "no" ||
             srcLC == "off")
      target = false;
    else
      return ParserResult::runtimeError(
          "Expected a boolean value but did not recognise: '" + source + "'");
    return ParserResult::ok(ParseResultType::Matched);
  }
  #ifdef CLARA_CONFIG_OPTIONAL_TYPE
  template<typename T>
  inline auto
  convertInto(std::string const &source, CLARA_CONFIG_OPTIONAL_TYPE<T> &target)
      -> ParserResult
  {
    T temp;
    auto result = convertInto(source, temp);
    if (result)
      target = std::move(temp);
    return result;
  }
  #endif // CLARA_CONFIG_OPTIONAL_TYPE
  
  struct NonCopyable
  {
    NonCopyable()                    = default;
    NonCopyable(NonCopyable const &) = delete;
    NonCopyable(NonCopyable &&)      = delete;
    NonCopyable &operator=(NonCopyable const &) = delete;
    NonCopyable &operator=(NonCopyable &&) = delete;
  };
  
  struct BoundRef : NonCopyable
  {
    virtual ~BoundRef() = default;
    virtual auto isContainer() const -> bool { return false; }
    virtual auto isFlag() const -> bool { return false; }
  };
  struct BoundValueRefBase : BoundRef
  {
    virtual auto setValue(std::string const &arg) -> ParserResult = 0;
  };
  struct BoundFlagRefBase : BoundRef
  {
    virtual auto setFlag(bool flag) -> ParserResult = 0;
    virtual auto isFlag() const -> bool { return true; }
  };
  
  template<typename T>
  struct BoundValueRef : BoundValueRefBase
  {
    T &m_ref;
  
    explicit BoundValueRef(T &ref) : m_ref(ref) {}
  
    auto setValue(std::string const &arg) -> ParserResult override
    {
      return convertInto(arg, m_ref);
    }
  };
  
  template<typename T>
  struct BoundValueRef<std::vector<T>> : BoundValueRefBase
  {
    std::vector<T> &m_ref;
  
    explicit BoundValueRef(std::vector<T> &ref) : m_ref(ref) {}
  
    auto isContainer() const -> bool override { return true; }
  
    auto setValue(std::string const &arg) -> ParserResult override
    {
      T temp;
      auto result = convertInto(arg, temp);
      if (result)
        m_ref.push_back(temp);
      return result;
    }
  };
  
  struct BoundFlagRef : BoundFlagRefBase
  {
    bool &m_ref;
  
    explicit BoundFlagRef(bool &ref) : m_ref(ref) {}
  
    auto setFlag(bool flag) -> ParserResult override
    {
      m_ref = flag;
      return ParserResult::ok(ParseResultType::Matched);
    }
  };
  
  template<typename ReturnType>
  struct LambdaInvoker
  {
    static_assert(std::is_same<ReturnType, ParserResult>::value,
                  "Lambda must return void or clara::ParserResult");
  
    template<typename L, typename ArgType>
    static auto invoke(L const &lambda, ArgType const &arg) -> ParserResult
    {
      return lambda(arg);
    }
  };
  
  template<>
  struct LambdaInvoker<void>
  {
    template<typename L, typename ArgType>
    static auto invoke(L const &lambda, ArgType const &arg) -> ParserResult
    {
      lambda(arg);
      return ParserResult::ok(ParseResultType::Matched);
    }
  };
  
  template<typename ArgType, typename L>
  inline auto invokeLambda(L const &lambda, std::string const &arg)
      -> ParserResult
  {
    ArgType temp{};
    auto result = convertInto(arg, temp);
    return !result
               ? result
               : LambdaInvoker<typename UnaryLambdaTraits<L>::ReturnType>::invoke(
                     lambda, temp);
  }
  
  template<typename L>
  struct BoundLambda : BoundValueRefBase
  {
    L m_lambda;
  
    static_assert(UnaryLambdaTraits<L>::isValid,
                  "Supplied lambda must take exactly one argument");
    explicit BoundLambda(L const &lambda) : m_lambda(lambda) {}
  
    auto setValue(std::string const &arg) -> ParserResult override
    {
      return invokeLambda<typename UnaryLambdaTraits<L>::ArgType>(m_lambda, arg);
    }
  };
  
  template<typename L>
  struct BoundFlagLambda : BoundFlagRefBase
  {
    L m_lambda;
  
    static_assert(UnaryLambdaTraits<L>::isValid,
                  "Supplied lambda must take exactly one argument");
    static_assert(
        std::is_same<typename UnaryLambdaTraits<L>::ArgType, bool>::value,
        "flags must be boolean");
  
    explicit BoundFlagLambda(L const &lambda) : m_lambda(lambda) {}
  
    auto setFlag(bool flag) -> ParserResult override
    {
      return LambdaInvoker<typename UnaryLambdaTraits<L>::ReturnType>::invoke(
          m_lambda, flag);
    }
  };
  
  enum class Optionality
  {
    Optional,
    Required
  };
  
  struct Parser;
  
  class ParserBase
  {
  public:
    virtual ~ParserBase() = default;
    virtual auto validate() const -> Result { return Result::ok(); }
    virtual auto
    parse(std::string const &exeName, TokenStream const &tokens) const
        -> InternalParseResult = 0;
    virtual auto cardinality() const -> size_t { return 1; }
  
    auto parse(Args const &args) const -> InternalParseResult
    {
      return parse(args.exeName(), TokenStream(args));
    }
  };
  
  template<typename DerivedT>
  class ComposableParserImpl : public ParserBase
  {
  public:
    template<typename T>
    auto operator|(T const &other) const -> Parser;
  
    template<typename T>
    auto operator+(T const &other) const -> Parser;
  };
  
  // Common code and state for Args and Opts
  template<typename DerivedT>
  class ParserRefImpl : public ComposableParserImpl<DerivedT>
  {
  protected:
    Optionality m_optionality = Optionality::Optional;
    std::shared_ptr<BoundRef> m_ref;
    std::string m_hint;
    std::string m_description;
  
    explicit ParserRefImpl(std::shared_ptr<BoundRef> const &ref) : m_ref(ref) {}
  
  public:
    template<typename T>
    ParserRefImpl(T &ref, std::string const &hint)
        : m_ref(std::make_shared<BoundValueRef<T>>(ref)), m_hint(hint)
    {}
  
    template<typename LambdaT>
    ParserRefImpl(LambdaT const &ref, std::string const &hint)
        : m_ref(std::make_shared<BoundLambda<LambdaT>>(ref)), m_hint(hint)
    {}
  
    auto operator()(std::string const &description) -> DerivedT &
    {
      m_description = description;
      return static_cast<DerivedT &>(*this);
    }
  
    auto optional() -> DerivedT &
    {
      m_optionality = Optionality::Optional;
      return static_cast<DerivedT &>(*this);
    };
  
    auto required() -> DerivedT &
    {
      m_optionality = Optionality::Required;
      return static_cast<DerivedT &>(*this);
    };
  
    auto isOptional() const -> bool
    {
      return m_optionality == Optionality::Optional;
    }
  
    auto cardinality() const -> size_t override
    {
      if (m_ref->isContainer())
        return 0;
      else
        return 1;
    }
  
    auto hint() const -> std::string { return m_hint; }
  };
  
  class ExeName : public ComposableParserImpl<ExeName>
  {
    std::shared_ptr<std::string> m_name;
    std::shared_ptr<BoundValueRefBase> m_ref;
  
    template<typename LambdaT>
    static auto makeRef(LambdaT const &lambda)
        -> std::shared_ptr<BoundValueRefBase>
    {
      return std::make_shared<BoundLambda<LambdaT>>(lambda);
    }
  
  public:
    ExeName() : m_name(std::make_shared<std::string>("<executable>")) {}
  
    explicit ExeName(std::string &ref) : ExeName()
    {
      m_ref = std::make_shared<BoundValueRef<std::string>>(ref);
    }
  
    template<typename LambdaT>
    explicit ExeName(LambdaT const &lambda) : ExeName()
    {
      m_ref = std::make_shared<BoundLambda<LambdaT>>(lambda);
    }
  
    // The exe name is not parsed out of the normal tokens, but is handled
    // specially
    auto parse(std::string const &, TokenStream const &tokens) const
        -> InternalParseResult override
    {
      return InternalParseResult::ok(
          ParseState(ParseResultType::NoMatch, tokens));
    }
  
    auto name() const -> std::string { return *m_name; }
    auto set(std::string const &newName) -> ParserResult
    {
      auto lastSlash = newName.find_last_of("\\/");
      auto filename  = (lastSlash == std::string::npos)
                          ? newName
                          : newName.substr(lastSlash + 1);
  
      *m_name = filename;
      if (m_ref)
        return m_ref->setValue(filename);
      else
        return ParserResult::ok(ParseResultType::Matched);
    }
  };
  
  class Arg : public ParserRefImpl<Arg>
  {
  public:
    using ParserRefImpl::ParserRefImpl;
  
    auto parse(std::string const &, TokenStream const &tokens) const
        -> InternalParseResult override
    {
      auto validationResult = validate();
      if (!validationResult)
        return InternalParseResult(validationResult);
  
      auto remainingTokens = tokens;
      auto const &token    = *remainingTokens;
      if (token.type != TokenType::Argument)
        return InternalParseResult::ok(
            ParseState(ParseResultType::NoMatch, remainingTokens));
  
      assert(!m_ref->isFlag());
      auto valueRef = static_cast<detail::BoundValueRefBase *>(m_ref.get());
  
      auto result = valueRef->setValue(remainingTokens->token);
      if (!result)
        return InternalParseResult(result);
      else
        return InternalParseResult::ok(
            ParseState(ParseResultType::Matched, ++remainingTokens));
    }
  };
  
  inline auto normaliseOpt(std::string const &optName) -> std::string
  {
  #ifdef CATCH_PLATFORM_WINDOWS
    if (optName[0] == '/')
      return "-" + optName.substr(1);
    else
  #endif
      return optName;
  }
  
  class Opt : public ParserRefImpl<Opt>
  {
  protected:
    std::vector<std::string> m_optNames;
  
  public:
    template<typename LambdaT>
    explicit Opt(LambdaT const &ref)
        : ParserRefImpl(std::make_shared<BoundFlagLambda<LambdaT>>(ref))
    {}
  
    explicit Opt(bool &ref) : ParserRefImpl(std::make_shared<BoundFlagRef>(ref))
    {}
  
    template<typename LambdaT>
    Opt(LambdaT const &ref, std::string const &hint) : ParserRefImpl(ref, hint)
    {}
  
    template<typename T>
    Opt(T &ref, std::string const &hint) : ParserRefImpl(ref, hint)
    {}
  
    auto operator[](std::string const &optName) -> Opt &
    {
      m_optNames.push_back(optName);
      return *this;
    }
  
    auto getHelpColumns() const -> std::vector<HelpColumns>
    {
      std::ostringstream oss;
      bool first = true;
      for (auto const &opt : m_optNames)
      {
        if (first)
          first = false;
        else
          oss << ", ";
        oss << opt;
      }
      if (!m_hint.empty())
        oss << " <" << m_hint << ">";
      return {{oss.str(), m_description}};
    }
  
    auto isMatch(std::string const &optToken) const -> bool
    {
      auto normalisedToken = normaliseOpt(optToken);
      for (auto const &name : m_optNames)
      {
        if (normaliseOpt(name) == normalisedToken)
          return true;
      }
      return false;
    }
  
    using ParserBase::parse;
  
    auto parse(std::string const &, TokenStream const &tokens) const
        -> InternalParseResult override
    {
      auto validationResult = validate();
      if (!validationResult)
        return InternalParseResult(validationResult);
  
      auto remainingTokens = tokens;
      if (remainingTokens && remainingTokens->type == TokenType::Option)
      {
        auto const &token = *remainingTokens;
        if (isMatch(token.token))
        {
          if (m_ref->isFlag())
          {
            auto flagRef = static_cast<detail::BoundFlagRefBase *>(m_ref.get());
            auto result  = flagRef->setFlag(true);
            if (!result)
              return InternalParseResult(result);
            if (result.value() == ParseResultType::ShortCircuitAll)
              return InternalParseResult::ok(
                  ParseState(result.value(), remainingTokens));
          }
          else
          {
            auto valueRef = static_cast<detail::BoundValueRefBase *>(m_ref.get());
            ++remainingTokens;
            if (!remainingTokens)
              return InternalParseResult::runtimeError(
                  "Expected argument following " + token.token);
            auto const &argToken = *remainingTokens;
            if (argToken.type != TokenType::Argument)
              return InternalParseResult::runtimeError(
                  "Expected argument following " + token.token);
            auto result = valueRef->setValue(argToken.token);
            if (!result)
              return InternalParseResult(result);
            if (result.value() == ParseResultType::ShortCircuitAll)
              return InternalParseResult::ok(
                  ParseState(result.value(), remainingTokens));
          }
          return InternalParseResult::ok(
              ParseState(ParseResultType::Matched, ++remainingTokens));
        }
      }
      return InternalParseResult::ok(
          ParseState(ParseResultType::NoMatch, remainingTokens));
    }
  
    auto validate() const -> Result override
    {
      if (m_optNames.empty())
        return Result::logicError("No options supplied to Opt");
      for (auto const &name : m_optNames)
      {
        if (name.empty())
          return Result::logicError("Option name cannot be empty");
  #ifdef CATCH_PLATFORM_WINDOWS
        if (name[0] != '-' && name[0] != '/')
          return Result::logicError("Option name must begin with '-' or '/'");
  #else
        if (name[0] != '-')
          return Result::logicError("Option name must begin with '-'");
  #endif
      }
      return ParserRefImpl::validate();
    }
  };
  
  struct Help : Opt
  {
    Help(bool &showHelpFlag)
        : Opt([&](bool flag) {
            showHelpFlag = flag;
            return ParserResult::ok(ParseResultType::ShortCircuitAll);
          })
    {
      static_cast<Opt &> (*this)(
          "display usage information")["-?"]["-h"]["--help"]
          .optional();
    }
  };
  
  struct Parser : ParserBase
  {
    mutable ExeName m_exeName;
    std::vector<Opt> m_options;
    std::vector<Arg> m_args;
  
    auto operator|=(ExeName const &exeName) -> Parser &
    {
      m_exeName = exeName;
      return *this;
    }
  
    auto operator|=(Arg const &arg) -> Parser &
    {
      m_args.push_back(arg);
      return *this;
    }
  
    auto operator|=(Opt const &opt) -> Parser &
    {
      m_options.push_back(opt);
      return *this;
    }
  
    auto operator|=(Parser const &other) -> Parser &
    {
      m_options.insert(m_options.end(), other.m_options.begin(),
                       other.m_options.end());
      m_args.insert(m_args.end(), other.m_args.begin(), other.m_args.end());
      return *this;
    }
  
    template<typename T>
    auto operator|(T const &other) const -> Parser
    {
      return Parser(*this) |= other;
    }
  
    // Forward deprecated interface with '+' instead of '|'
    template<typename T>
    auto operator+=(T const &other) -> Parser &
    {
      return operator|=(other);
    }
    template<typename T>
    auto operator+(T const &other) const -> Parser
    {
      return operator|(other);
    }
  
    auto getHelpColumns() const -> std::vector<HelpColumns>
    {
      std::vector<HelpColumns> cols;
      for (auto const &o : m_options)
      {
        auto childCols = o.getHelpColumns();
        cols.insert(cols.end(), childCols.begin(), childCols.end());
      }
      return cols;
    }
  
    void writeToStream(std::ostream &os) const
    {
      if (!m_exeName.name().empty())
      {
        os << "usage:\n"
           << "  " << m_exeName.name() << " ";
        bool required = true, first = true;
        for (auto const &arg : m_args)
        {
          if (first)
            first = false;
          else
            os << " ";
          if (arg.isOptional() && required)
          {
            os << "[";
            required = false;
          }
          os << "<" << arg.hint() << ">";
          if (arg.cardinality() == 0)
            os << " ... ";
        }
        if (!required)
          os << "]";
        if (!m_options.empty())
          os << " options";
        os << "\n\nwhere options are:" << std::endl;
      }
  
      auto rows           = getHelpColumns();
      size_t consoleWidth = CATCH_CLARA_CONFIG_CONSOLE_WIDTH;
      size_t optWidth     = 0;
      for (auto const &cols : rows)
        optWidth = (std::max)(optWidth, cols.left.size() + 2);
  
      optWidth = (std::min)(optWidth, consoleWidth / 2);
  
      for (auto const &cols : rows)
      {
        auto row =
            TextFlow::Column(cols.left).width(optWidth).indent(2) +
            TextFlow::Spacer(4) +
            TextFlow::Column(cols.right).width(consoleWidth - 7 - optWidth);
        os << row << std::endl;
      }
    }
  
    friend auto operator<<(std::ostream &os, Parser const &parser)
        -> std::ostream &
    {
      parser.writeToStream(os);
      return os;
    }
  
    auto validate() const -> Result override
    {
      for (auto const &opt : m_options)
      {
        auto result = opt.validate();
        if (!result)
          return result;
      }
      for (auto const &arg : m_args)
      {
        auto result = arg.validate();
        if (!result)
          return result;
      }
      return Result::ok();
    }
  
    using ParserBase::parse;
  
    auto parse(std::string const &exeName, TokenStream const &tokens) const
        -> InternalParseResult override
    {
      struct ParserInfo
      {
        ParserBase const *parser = nullptr;
        size_t count             = 0;
      };
      const size_t totalParsers = m_options.size() + m_args.size();
      assert(totalParsers < 512);
      // ParserInfo parseInfos[totalParsers]; // <-- this is what we really want
      // to do
      ParserInfo parseInfos[512];
  
      {
        size_t i = 0;
        for (auto const &opt : m_options)
          parseInfos[i++].parser = &opt;
        for (auto const &arg : m_args)
          parseInfos[i++].parser = &arg;
      }
  
      m_exeName.set(exeName);
  
      auto result =
          InternalParseResult::ok(ParseState(ParseResultType::NoMatch, tokens));
      while (result.value().remainingTokens())
      {
        bool tokenParsed = false;
  
        for (size_t i = 0; i < totalParsers; ++i)
        {
          auto &parseInfo = parseInfos[i];
          if (parseInfo.parser->cardinality() == 0 ||
              parseInfo.count < parseInfo.parser->cardinality())
          {
            result = parseInfo.parser->parse(exeName,
                                             result.value().remainingTokens());
            if (!result)
              return result;
            if (result.value().type() != ParseResultType::NoMatch)
            {
              tokenParsed = true;
              ++parseInfo.count;
              break;
            }
          }
        }
  
        if (result.value().type() == ParseResultType::ShortCircuitAll)
          return result;
        if (!tokenParsed)
          return InternalParseResult::runtimeError(
              "Unrecognised token: " + result.value().remainingTokens()->token);
      }
      // !TBD Check missing required options
      return result;
    }
  };
  
  template<typename DerivedT>
  template<typename T>
  auto ComposableParserImpl<DerivedT>::operator|(T const &other) const -> Parser
  {
    return Parser() | static_cast<DerivedT const &>(*this) | other;
  }
  } // namespace detail
  
  // A Combined parser
  using detail::Parser;
  
  // A parser for options
  using detail::Opt;
  
  // A parser for arguments
  using detail::Arg;
  
  // Wrapper for argc, argv from main()
  using detail::Args;
  
  // Specifies the name of the executable
  using detail::ExeName;
  
  // Convenience wrapper for option parser that specifies the help option
  using detail::Help;
  
  // enum of result types from a parse
  using detail::ParseResultType;
  
  // Result type for parser operation
  using detail::ParserResult;
  
  } // namespace clara
  } // namespace Catch
  
  // end clara.hpp
  #ifdef __clang__
  #pragma clang diagnostic pop
  #endif
  
  // Restore Clara's value for console width, if present
  #ifdef CATCH_TEMP_CLARA_CONFIG_CONSOLE_WIDTH
  #define CATCH_CLARA_TEXTFLOW_CONFIG_CONSOLE_WIDTH \
    CATCH_TEMP_CLARA_CONFIG_CONSOLE_WIDTH
  #undef CATCH_TEMP_CLARA_CONFIG_CONSOLE_WIDTH
  #endif
  
  // end catch_clara.h
  namespace Catch
  {
  clara::Parser makeCommandLineParser(ConfigData &config);
  
  } // end namespace Catch
  
  // end catch_commandline.h
  #include <ctime>
  #include <fstream>
  
  namespace Catch
  {
  clara::Parser makeCommandLineParser(ConfigData &config)
  {
    using namespace clara;
  
    auto const setWarning = [&](std::string const &warning) {
      auto warningSet = [&]() {
        if (warning == "NoAssertions")
          return WarnAbout::NoAssertions;
  
        if (warning == "NoTests")
          return WarnAbout::NoTests;
  
        return WarnAbout::Nothing;
      }();
  
      if (warningSet == WarnAbout::Nothing)
        return ParserResult::runtimeError("Unrecognised warning: '" + warning +
                                          "'");
      config.warnings =
          static_cast<WarnAbout::What>(config.warnings | warningSet);
      return ParserResult::ok(ParseResultType::Matched);
    };
    auto const loadTestNamesFromFile = [&](std::string const &filename) {
      std::ifstream f(filename.c_str());
      if (!f.is_open())
        return ParserResult::runtimeError("Unable to load input file: '" +
                                          filename + "'");
  
      std::string line;
      while (std::getline(f, line))
      {
        line = trim(line);
        if (!line.empty() && !startsWith(line, '#'))
        {
          if (!startsWith(line, '"'))
            line = '"' + line + '"';
          config.testsOrTags.push_back(line);
          config.testsOrTags.emplace_back(",");
        }
      }
      // Remove comma in the end
      if (!config.testsOrTags.empty())
        config.testsOrTags.erase(config.testsOrTags.end() - 1);
  
      return ParserResult::ok(ParseResultType::Matched);
    };
    auto const setTestOrder = [&](std::string const &order) {
      if (startsWith("declared", order))
        config.runOrder = RunTests::InDeclarationOrder;
      else if (startsWith("lexical", order))
        config.runOrder = RunTests::InLexicographicalOrder;
      else if (startsWith("random", order))
        config.runOrder = RunTests::InRandomOrder;
      else
        return clara::ParserResult::runtimeError("Unrecognised ordering: '" +
                                                 order + "'");
      return ParserResult::ok(ParseResultType::Matched);
    };
    auto const setRngSeed = [&](std::string const &seed) {
      if (seed != "time")
        return clara::detail::convertInto(seed, config.rngSeed);
      config.rngSeed = static_cast<unsigned int>(std::time(nullptr));
      return ParserResult::ok(ParseResultType::Matched);
    };
    auto const setColourUsage = [&](std::string const &useColour) {
      auto mode = toLower(useColour);
  
      if (mode == "yes")
        config.useColour = UseColour::Yes;
      else if (mode == "no")
        config.useColour = UseColour::No;
      else if (mode == "auto")
        config.useColour = UseColour::Auto;
      else
        return ParserResult::runtimeError(
            "colour mode must be one of: auto, yes or no. '" + useColour +
            "' not recognised");
      return ParserResult::ok(ParseResultType::Matched);
    };
    auto const setWaitForKeypress = [&](std::string const &keypress) {
      auto keypressLc = toLower(keypress);
      if (keypressLc == "never")
        config.waitForKeypress = WaitForKeypress::Never;
      else if (keypressLc == "start")
        config.waitForKeypress = WaitForKeypress::BeforeStart;
      else if (keypressLc == "exit")
        config.waitForKeypress = WaitForKeypress::BeforeExit;
      else if (keypressLc == "both")
        config.waitForKeypress = WaitForKeypress::BeforeStartAndExit;
      else
        return ParserResult::runtimeError(
            "keypress argument must be one of: never, start, exit or both. '" +
            keypress + "' not recognised");
      return ParserResult::ok(ParseResultType::Matched);
    };
    auto const setVerbosity = [&](std::string const &verbosity) {
      auto lcVerbosity = toLower(verbosity);
      if (lcVerbosity == "quiet")
        config.verbosity = Verbosity::Quiet;
      else if (lcVerbosity == "normal")
        config.verbosity = Verbosity::Normal;
      else if (lcVerbosity == "high")
        config.verbosity = Verbosity::High;
      else
        return ParserResult::runtimeError("Unrecognised verbosity, '" +
                                          verbosity + "'");
      return ParserResult::ok(ParseResultType::Matched);
    };
    auto const setReporter = [&](std::string const &reporter) {
      IReporterRegistry::FactoryMap const &factories =
          getRegistryHub().getReporterRegistry().getFactories();
  
      auto lcReporter = toLower(reporter);
      auto result     = factories.find(lcReporter);
  
      if (factories.end() != result)
        config.reporterName = lcReporter;
      else
        return ParserResult::runtimeError(
            "Unrecognized reporter, '" + reporter +
            "'. Check available with --list-reporters");
      return ParserResult::ok(ParseResultType::Matched);
    };
  
    auto cli =
        ExeName(config.processName) | Help(config.showHelp) |
        Opt(config.listTests)["-l"]["--list-tests"](
            "list all/matching test cases") |
        Opt(config.listTags)["-t"]["--list-tags"]("list all/matching tags") |
        Opt(config.showSuccessfulTests)["-s"]["--success"](
            "include successful tests in output") |
        Opt(config.shouldDebugBreak)["-b"]["--break"](
            "break into debugger on failure") |
        Opt(config.noThrow)["-e"]["--nothrow"]("skip exception tests") |
        Opt(config.showInvisibles)["-i"]["--invisibles"](
            "show invisibles (tabs, newlines)") |
        Opt(config.outputFilename, "filename")["-o"]["--out"]("output filename") |
        Opt(setReporter,
            "name")["-r"]["--reporter"]("reporter to use (defaults to console)") |
        Opt(config.name, "name")["-n"]["--name"]("suite name") | Opt([&](bool) {
          config.abortAfter = 1;
        })["-a"]["--abort"]("abort at first failure") |
        Opt([&](int x) { config.abortAfter = x; },
            "no. failures")["-x"]["--abortx"]("abort after x failures") |
        Opt(setWarning, "warning name")["-w"]["--warn"]("enable warnings") |
        Opt(
            [&](bool flag) {
              config.showDurations =
                  flag ? ShowDurations::Always : ShowDurations::Never;
            },
            "yes|no")["-d"]["--durations"]("show test durations") |
        Opt(loadTestNamesFromFile, "filename")["-f"]["--input-file"](
            "load test names to run from a file") |
        Opt(config.filenamesAsTags)["-#"]["--filenames-as-tags"](
            "adds a tag for the filename") |
        Opt(config.sectionsToRun,
            "section name")["-c"]["--section"]("specify section to run") |
        Opt(setVerbosity,
            "quiet|normal|high")["-v"]["--verbosity"]("set output verbosity") |
        Opt(config.listTestNamesOnly)["--list-test-names-only"](
            "list all/matching test cases names only") |
        Opt(config.listReporters)["--list-reporters"]("list all reporters") |
        Opt(setTestOrder,
            "decl|lex|rand")["--order"]("test case order (defaults to decl)") |
        Opt(setRngSeed, "'time'|number")["--rng-seed"](
            "set a specific seed for random numbers") |
        Opt(setColourUsage,
            "yes|no")["--use-colour"]("should output be colourised") |
        Opt(config.libIdentify)["--libidentify"](
            "report name and version according to libidentify standard") |
        Opt(setWaitForKeypress, "never|start|exit|both")["--wait-for-keypress"](
            "waits for a keypress before exiting") |
        Opt(config.benchmarkSamples, "samples")["--benchmark-samples"](
            "number of samples to collect (default: 100)") |
        Opt(config.benchmarkResamples, "resamples")["--benchmark-resamples"](
            "number of resamples for the bootstrap (default: 100000)") |
        Opt(config.benchmarkConfidenceInterval,
            "confidence interval")["--benchmark-confidence-interval"](
            "confidence interval for the bootstrap (between 0 and 1, default: "
            "0.95)") |
        Opt(config.benchmarkNoAnalysis)["--benchmark-no-analysis"](
            "perform only measurements; do not perform any analysis") |
        Opt(config.benchmarkWarmupTime,
            "benchmarkWarmupTime")["--benchmark-warmup-time"](
            "amount of time in milliseconds spent on warming up each test "
            "(default: 100)") |
        Arg(config.testsOrTags,
            "test name|pattern|tags")("which test or tests to use");
  
    return cli;
  }
  
  } // end namespace Catch
  // end catch_commandline.cpp
  // start catch_common.cpp
  
  #include <cstring>
  #include <ostream>
  
  namespace Catch
  {
  bool SourceLineInfo::operator==(SourceLineInfo const &other) const noexcept
  {
    return line == other.line &&
           (file == other.file || std::strcmp(file, other.file) == 0);
  }
  bool SourceLineInfo::operator<(SourceLineInfo const &other) const noexcept
  {
    // We can assume that the same file will usually have the same pointer.
    // Thus, if the pointers are the same, there is no point in calling the strcmp
    return line < other.line || (line == other.line && file != other.file &&
                                 (std::strcmp(file, other.file) < 0));
  }
  
  std::ostream &operator<<(std::ostream &os, SourceLineInfo const &info)
  {
  #ifndef __GNUG__
    os << info.file << '(' << info.line << ')';
  #else
    os << info.file << ':' << info.line;
  #endif
    return os;
  }
  
  std::string StreamEndStop::operator+() const { return std::string(); }
  
  NonCopyable::NonCopyable()  = default;
  NonCopyable::~NonCopyable() = default;
  
  } // namespace Catch
  // end catch_common.cpp
  // start catch_config.cpp
  
  namespace Catch
  {
  Config::Config(ConfigData const &data) : m_data(data), m_stream(openStream())
  {
    // We need to trim filter specs to avoid trouble with superfluous
    // whitespace (esp. important for bdd macros, as those are manually
    // aligned with whitespace).
  
    for (auto &elem : m_data.testsOrTags)
    {
      elem = trim(elem);
    }
    for (auto &elem : m_data.sectionsToRun)
    {
      elem = trim(elem);
    }
  
    TestSpecParser parser(ITagAliasRegistry::get());
    if (!m_data.testsOrTags.empty())
    {
      m_hasTestFilters = true;
      for (auto const &testOrTags : m_data.testsOrTags)
      {
        parser.parse(testOrTags);
      }
    }
    m_testSpec = parser.testSpec();
  }
  
  std::string const &Config::getFilename() const { return m_data.outputFilename; }
  
  bool Config::listTests() const { return m_data.listTests; }
  bool Config::listTestNamesOnly() const { return m_data.listTestNamesOnly; }
  bool Config::listTags() const { return m_data.listTags; }
  bool Config::listReporters() const { return m_data.listReporters; }
  
  std::string Config::getProcessName() const { return m_data.processName; }
  std::string const &Config::getReporterName() const
  {
    return m_data.reporterName;
  }
  
  std::vector<std::string> const &Config::getTestsOrTags() const
  {
    return m_data.testsOrTags;
  }
  std::vector<std::string> const &Config::getSectionsToRun() const
  {
    return m_data.sectionsToRun;
  }
  
  TestSpec const &Config::testSpec() const { return m_testSpec; }
  bool Config::hasTestFilters() const { return m_hasTestFilters; }
  
  bool Config::showHelp() const { return m_data.showHelp; }
  
  // IConfig interface
  bool Config::allowThrows() const { return !m_data.noThrow; }
  std::ostream &Config::stream() const { return m_stream->stream(); }
  std::string Config::name() const
  {
    return m_data.name.empty() ? m_data.processName : m_data.name;
  }
  bool Config::includeSuccessfulResults() const
  {
    return m_data.showSuccessfulTests;
  }
  bool Config::warnAboutMissingAssertions() const
  {
    return !!(m_data.warnings & WarnAbout::NoAssertions);
  }
  bool Config::warnAboutNoTests() const
  {
    return !!(m_data.warnings & WarnAbout::NoTests);
  }
  ShowDurations::OrNot Config::showDurations() const
  {
    return m_data.showDurations;
  }
  RunTests::InWhatOrder Config::runOrder() const { return m_data.runOrder; }
  unsigned int Config::rngSeed() const { return m_data.rngSeed; }
  UseColour::YesOrNo Config::useColour() const { return m_data.useColour; }
  bool Config::shouldDebugBreak() const { return m_data.shouldDebugBreak; }
  int Config::abortAfter() const { return m_data.abortAfter; }
  bool Config::showInvisibles() const { return m_data.showInvisibles; }
  Verbosity Config::verbosity() const { return m_data.verbosity; }
  
  bool Config::benchmarkNoAnalysis() const { return m_data.benchmarkNoAnalysis; }
  int Config::benchmarkSamples() const { return m_data.benchmarkSamples; }
  double Config::benchmarkConfidenceInterval() const
  {
    return m_data.benchmarkConfidenceInterval;
  }
  unsigned int Config::benchmarkResamples() const
  {
    return m_data.benchmarkResamples;
  }
  std::chrono::milliseconds Config::benchmarkWarmupTime() const
  {
    return std::chrono::milliseconds(m_data.benchmarkWarmupTime);
  }
  
  IStream const *Config::openStream()
  {
    return Catch::makeStream(m_data.outputFilename);
  }
  
  } // end namespace Catch
  // end catch_config.cpp
  // start catch_console_colour.cpp
  
  #if defined(__clang__)
  #pragma clang diagnostic push
  #pragma clang diagnostic ignored "-Wexit-time-destructors"
  #endif
  
  // start catch_errno_guard.h
  
  namespace Catch
  {
  class ErrnoGuard
  {
  public:
    ErrnoGuard();
    ~ErrnoGuard();
  
  private:
    int m_oldErrno;
  };
  
  } // namespace Catch
  
  // end catch_errno_guard.h
  #include <sstream>
  
  namespace Catch
  {
  namespace
  {
  struct IColourImpl
  {
    virtual ~IColourImpl()                     = default;
    virtual void use(Colour::Code _colourCode) = 0;
  };
  
  struct NoColourImpl : IColourImpl
  {
    void use(Colour::Code) override {}
  
    static IColourImpl *instance()
    {
      static NoColourImpl s_instance;
      return &s_instance;
    }
  };
  
  } // namespace
  } // namespace Catch
  
  #if !defined(CATCH_CONFIG_COLOUR_NONE) &&    \
      !defined(CATCH_CONFIG_COLOUR_WINDOWS) && \
      !defined(CATCH_CONFIG_COLOUR_ANSI)
  #ifdef CATCH_PLATFORM_WINDOWS
  #define CATCH_CONFIG_COLOUR_WINDOWS
  #else
  #define CATCH_CONFIG_COLOUR_ANSI
  #endif
  #endif
  
  #if defined( \
      CATCH_CONFIG_COLOUR_WINDOWS) /////////////////////////////////////////
  
  namespace Catch
  {
  namespace
  {
  class Win32ColourImpl : public IColourImpl
  {
  public:
    Win32ColourImpl() : stdoutHandle(GetStdHandle(STD_OUTPUT_HANDLE))
    {
      CONSOLE_SCREEN_BUFFER_INFO csbiInfo;
      GetConsoleScreenBufferInfo(stdoutHandle, &csbiInfo);
      originalForegroundAttributes =
          csbiInfo.wAttributes & ~(BACKGROUND_GREEN | BACKGROUND_RED |
                                   BACKGROUND_BLUE | BACKGROUND_INTENSITY);
      originalBackgroundAttributes =
          csbiInfo.wAttributes & ~(FOREGROUND_GREEN | FOREGROUND_RED |
                                   FOREGROUND_BLUE | FOREGROUND_INTENSITY);
    }
  
    void use(Colour::Code _colourCode) override
    {
      switch (_colourCode)
      {
      case Colour::None:
        return setTextAttribute(originalForegroundAttributes);
      case Colour::White:
        return setTextAttribute(FOREGROUND_GREEN | FOREGROUND_RED |
                                FOREGROUND_BLUE);
      case Colour::Red:
        return setTextAttribute(FOREGROUND_RED);
      case Colour::Green:
        return setTextAttribute(FOREGROUND_GREEN);
      case Colour::Blue:
        return setTextAttribute(FOREGROUND_BLUE);
      case Colour::Cyan:
        return setTextAttribute(FOREGROUND_BLUE | FOREGROUND_GREEN);
      case Colour::Yellow:
        return setTextAttribute(FOREGROUND_RED | FOREGROUND_GREEN);
      case Colour::Grey:
        return setTextAttribute(0);
  
      case Colour::LightGrey:
        return setTextAttribute(FOREGROUND_INTENSITY);
      case Colour::BrightRed:
        return setTextAttribute(FOREGROUND_INTENSITY | FOREGROUND_RED);
      case Colour::BrightGreen:
        return setTextAttribute(FOREGROUND_INTENSITY | FOREGROUND_GREEN);
      case Colour::BrightWhite:
        return setTextAttribute(FOREGROUND_INTENSITY | FOREGROUND_GREEN |
                                FOREGROUND_RED | FOREGROUND_BLUE);
      case Colour::BrightYellow:
        return setTextAttribute(FOREGROUND_INTENSITY | FOREGROUND_RED |
                                FOREGROUND_GREEN);
  
      case Colour::Bright:
        CATCH_INTERNAL_ERROR("not a colour");
  
      default:
        CATCH_ERROR("Unknown colour requested");
      }
    }
  
  private:
    void setTextAttribute(WORD _textAttribute)
    {
      SetConsoleTextAttribute(stdoutHandle,
                              _textAttribute | originalBackgroundAttributes);
    }
    HANDLE stdoutHandle;
    WORD originalForegroundAttributes;
    WORD originalBackgroundAttributes;
  };
  
  IColourImpl *platformColourInstance()
  {
    static Win32ColourImpl s_instance;
  
    IConfigPtr config = getCurrentContext().getConfig();
    UseColour::YesOrNo colourMode =
        config ? config->useColour() : UseColour::Auto;
    if (colourMode == UseColour::Auto)
      colourMode = UseColour::Yes;
    return colourMode == UseColour::Yes ? &s_instance : NoColourImpl::instance();
  }
  
  } // namespace
  } // end namespace Catch
  
  #elif defined(CATCH_CONFIG_COLOUR_ANSI) //////////////////////////////////////
  
  #include <unistd.h>
  
  namespace Catch
  {
  namespace
  {
  // use POSIX/ ANSI console terminal codes
  // Thanks to Adam Strzelecki for original contribution
  // (http://github.com/nanoant)
  // https://github.com/philsquared/Catch/pull/131
  class PosixColourImpl : public IColourImpl
  {
  public:
    void use(Colour::Code _colourCode) override
    {
      switch (_colourCode)
      {
      case Colour::None:
      case Colour::White:
        return setColour("[0m");
      case Colour::Red:
        return setColour("[0;31m");
      case Colour::Green:
        return setColour("[0;32m");
      case Colour::Blue:
        return setColour("[0;34m");
      case Colour::Cyan:
        return setColour("[0;36m");
      case Colour::Yellow:
        return setColour("[0;33m");
      case Colour::Grey:
        return setColour("[1;30m");
  
      case Colour::LightGrey:
        return setColour("[0;37m");
      case Colour::BrightRed:
        return setColour("[1;31m");
      case Colour::BrightGreen:
        return setColour("[1;32m");
      case Colour::BrightWhite:
        return setColour("[1;37m");
      case Colour::BrightYellow:
        return setColour("[1;33m");
  
      case Colour::Bright:
        CATCH_INTERNAL_ERROR("not a colour");
      default:
        CATCH_INTERNAL_ERROR("Unknown colour requested");
      }
    }
    static IColourImpl *instance()
    {
      static PosixColourImpl s_instance;
      return &s_instance;
    }
  
  private:
    void setColour(const char *_escapeCode)
    {
      getCurrentContext().getConfig()->stream() << '\033' << _escapeCode;
    }
  };
  
  bool useColourOnPlatform()
  {
    return
  #if defined(CATCH_PLATFORM_MAC) || defined(CATCH_PLATFORM_IPHONE)
        !isDebuggerActive() &&
  #endif
  #if !(defined(__DJGPP__) && defined(__STRICT_ANSI__))
        isatty(STDOUT_FILENO)
  #else
        false
  #endif
            ;
  }
  IColourImpl *platformColourInstance()
  {
    ErrnoGuard guard;
    IConfigPtr config = getCurrentContext().getConfig();
    UseColour::YesOrNo colourMode =
        config ? config->useColour() : UseColour::Auto;
    if (colourMode == UseColour::Auto)
      colourMode = useColourOnPlatform() ? UseColour::Yes : UseColour::No;
    return colourMode == UseColour::Yes ? PosixColourImpl::instance()
                                        : NoColourImpl::instance();
  }
  
  } // namespace
  } // end namespace Catch
  
  #else // not Windows or ANSI ///////////////////////////////////////////////
  
  namespace Catch
  {
  static IColourImpl *platformColourInstance()
  {
    return NoColourImpl::instance();
  }
  
  } // end namespace Catch
  
  #endif // Windows/ ANSI/ None
  
  namespace Catch
  {
  Colour::Colour(Code _colourCode) { use(_colourCode); }
  Colour::Colour(Colour &&other) noexcept
  {
    m_moved       = other.m_moved;
    other.m_moved = true;
  }
  Colour &Colour::operator=(Colour &&other) noexcept
  {
    m_moved       = other.m_moved;
    other.m_moved = true;
    return *this;
  }
  
  Colour::~Colour()
  {
    if (!m_moved)
      use(None);
  }
  
  void Colour::use(Code _colourCode)
  {
    static IColourImpl *impl = platformColourInstance();
    // Strictly speaking, this cannot possibly happen.
    // However, under some conditions it does happen (see #1626),
    // and this change is small enough that we can let practicality
    // triumph over purity in this case.
    if (impl != nullptr)
    {
      impl->use(_colourCode);
    }
  }
  
  std::ostream &operator<<(std::ostream &os, Colour const &) { return os; }
  
  } // end namespace Catch
  
  #if defined(__clang__)
  #pragma clang diagnostic pop
  #endif
  
  // end catch_console_colour.cpp
  // start catch_context.cpp
  
  namespace Catch
  {
  class Context : public IMutableContext, NonCopyable
  {
  public: // IContext
    IResultCapture *getResultCapture() override { return m_resultCapture; }
    IRunner *getRunner() override { return m_runner; }
  
    IConfigPtr const &getConfig() const override { return m_config; }
  
    ~Context() override;
  
  public: // IMutableContext
    void setResultCapture(IResultCapture *resultCapture) override
    {
      m_resultCapture = resultCapture;
    }
    void setRunner(IRunner *runner) override { m_runner = runner; }
    void setConfig(IConfigPtr const &config) override { m_config = config; }
  
    friend IMutableContext &getCurrentMutableContext();
  
  private:
    IConfigPtr m_config;
    IRunner *m_runner               = nullptr;
    IResultCapture *m_resultCapture = nullptr;
  };
  
  IMutableContext *IMutableContext::currentContext = nullptr;
  
  void IMutableContext::createContext() { currentContext = new Context(); }
  
  void cleanUpContext()
  {
    delete IMutableContext::currentContext;
    IMutableContext::currentContext = nullptr;
  }
  IContext::~IContext()               = default;
  IMutableContext::~IMutableContext() = default;
  Context::~Context()                 = default;
  
  SimplePcg32 &rng()
  {
    static SimplePcg32 s_rng;
    return s_rng;
  }
  
  } // namespace Catch
  // end catch_context.cpp
  // start catch_debug_console.cpp
  
  // start catch_debug_console.h
  
  #include <string>
  
  namespace Catch
  {
  void writeToDebugConsole(std::string const &text);
  }
  
  // end catch_debug_console.h
  #if defined(CATCH_CONFIG_ANDROID_LOGWRITE)
  #include <android/log.h>
  
  namespace Catch
  {
  void writeToDebugConsole(std::string const &text)
  {
    __android_log_write(ANDROID_LOG_DEBUG, "Catch", text.c_str());
  }
  } // namespace Catch
  
  #elif defined(CATCH_PLATFORM_WINDOWS)
  
  namespace Catch
  {
  void writeToDebugConsole(std::string const &text)
  {
    ::OutputDebugStringA(text.c_str());
  }
  } // namespace Catch
  
  #else
  
  namespace Catch
  {
  void writeToDebugConsole(std::string const &text)
  {
    // !TBD: Need a version for Mac/ XCode and other IDEs
    Catch::cout() << text;
  }
  } // namespace Catch
  
  #endif // Platform
  // end catch_debug_console.cpp
  // start catch_debugger.cpp
  
  #if defined(CATCH_PLATFORM_MAC) || defined(CATCH_PLATFORM_IPHONE)
  
  #include <assert.h>
  #include <cstddef>
  #include <ostream>
  #include <stdbool.h>
  #include <sys/types.h>
  #include <unistd.h>
  
  #ifdef __apple_build_version__
  // These headers will only compile with AppleClang (XCode)
  // For other compilers (Clang, GCC, ... ) we need to exclude them
  #include <sys/sysctl.h>
  #endif
  
  namespace Catch
  {
  #ifdef __apple_build_version__
  // The following function is taken directly from the following technical note:
  // https://developer.apple.com/library/archive/qa/qa1361/_index.html
  
  // Returns true if the current process is being debugged (either
  // running under the debugger or has a debugger attached post facto).
  bool isDebuggerActive()
  {
    int mib[4];
    struct kinfo_proc info;
    std::size_t size;
  
    // Initialize the flags so that, if sysctl fails for some bizarre
    // reason, we get a predictable result.
  
    info.kp_proc.p_flag = 0;
  
    // Initialize mib, which tells sysctl the info we want, in this case
    // we're looking for information about a specific process ID.
  
    mib[0] = CTL_KERN;
    mib[1] = KERN_PROC;
    mib[2] = KERN_PROC_PID;
    mib[3] = getpid();
  
    // Call sysctl.
  
    size = sizeof(info);
    if (sysctl(mib, sizeof(mib) / sizeof(*mib), &info, &size, nullptr, 0) != 0)
    {
      Catch::cerr() << "\n** Call to sysctl failed - unable to determine if "
                       "debugger is active **\n"
                    << std::endl;
      return false;
    }
  
    // We're being debugged if the P_TRACED flag is set.
  
    return ((info.kp_proc.p_flag & P_TRACED) != 0);
  }
  #else
  bool isDebuggerActive()
  {
    // We need to find another way to determine this for non-appleclang compilers
    // on macOS
    return false;
  }
  #endif
  } // namespace Catch
  
  #elif defined(CATCH_PLATFORM_LINUX)
  #include <fstream>
  #include <string>
  
  namespace Catch
  {
  // The standard POSIX way of detecting a debugger is to attempt to
  // ptrace() the process, but this needs to be done from a child and not
  // this process itself to still allow attaching to this process later
  // if wanted, so is rather heavy. Under Linux we have the PID of the
  // "debugger" (which doesn't need to be gdb, of course, it could also
  // be strace, for example) in /proc/$PID/status, so just get it from
  // there instead.
  bool isDebuggerActive()
  {
    // Libstdc++ has a bug, where std::ifstream sets errno to 0
    // This way our users can properly assert over errno values
    ErrnoGuard guard;
    std::ifstream in("/proc/self/status");
    for (std::string line; std::getline(in, line);)
    {
      static const int PREFIX_LEN = 11;
      if (line.compare(0, PREFIX_LEN, "TracerPid:\t") == 0)
      {
        // We're traced if the PID is not 0 and no other PID starts
        // with 0 digit, so it's enough to check for just a single
        // character.
        return line.length() > PREFIX_LEN && line[PREFIX_LEN] != '0';
      }
    }
  
    return false;
  }
  } // namespace Catch
  #elif defined(_MSC_VER)
  extern "C" __declspec(dllimport) int __stdcall IsDebuggerPresent();
  namespace Catch
  {
  bool isDebuggerActive() { return IsDebuggerPresent() != 0; }
  } // namespace Catch
  #elif defined(__MINGW32__)
  extern "C" __declspec(dllimport) int __stdcall IsDebuggerPresent();
  namespace Catch
  {
  bool isDebuggerActive() { return IsDebuggerPresent() != 0; }
  } // namespace Catch
  #else
  namespace Catch
  {
  bool isDebuggerActive() { return false; }
  } // namespace Catch
  #endif // Platform
  // end catch_debugger.cpp
  // start catch_decomposer.cpp
  
  namespace Catch
  {
  ITransientExpression::~ITransientExpression() = default;
  
  void formatReconstructedExpression(std::ostream &os, std::string const &lhs,
                                     StringRef op, std::string const &rhs)
  {
    if (lhs.size() + rhs.size() < 40 && lhs.find('\n') == std::string::npos &&
        rhs.find('\n') == std::string::npos)
      os << lhs << " " << op << " " << rhs;
    else
      os << lhs << "\n" << op << "\n" << rhs;
  }
  } // namespace Catch
  // end catch_decomposer.cpp
  // start catch_enforce.cpp
  
  #include <stdexcept>
  
  namespace Catch
  {
  #if defined(CATCH_CONFIG_DISABLE_EXCEPTIONS) && \
      !defined(CATCH_CONFIG_DISABLE_EXCEPTIONS_CUSTOM_HANDLER)
  [[noreturn]] void throw_exception(std::exception const &e) {
    Catch::cerr()
        << "Catch will terminate because it needed to throw an exception.\n"
        << "The message was: " << e.what() << '\n';
    std::terminate();
  }
  #endif
  
  [[noreturn]] void throw_logic_error(std::string const &msg)
  {
    throw_exception(std::logic_error(msg));
  }
  
  [[noreturn]] void throw_domain_error(std::string const &msg) {
    throw_exception(std::domain_error(msg));
  }
  
  [[noreturn]] void throw_runtime_error(std::string const &msg)
  {
    throw_exception(std::runtime_error(msg));
  }
  
  } // namespace Catch
  // end catch_enforce.cpp
  // start catch_enum_values_registry.cpp
  // start catch_enum_values_registry.h
  
  #include <memory>
  #include <vector>
  
  namespace Catch
  {
  namespace Detail
  {
  std::unique_ptr<EnumInfo> makeEnumInfo(StringRef enumName,
                                         StringRef allValueNames,
                                         std::vector<int> const &values);
  
  class EnumValuesRegistry : public IMutableEnumValuesRegistry
  {
    std::vector<std::unique_ptr<EnumInfo>> m_enumInfos;
  
    EnumInfo const &registerEnum(StringRef enumName, StringRef allEnums,
                                 std::vector<int> const &values) override;
  };
  
  std::vector<StringRef> parseEnums(StringRef enums);
  
  } // namespace Detail
  
  } // namespace Catch
  
  // end catch_enum_values_registry.h
  
  #include <cassert>
  #include <map>
  
  namespace Catch
  {
  IMutableEnumValuesRegistry::~IMutableEnumValuesRegistry() {}
  
  namespace Detail
  {
  namespace
  {
  // Extracts the actual name part of an enum instance
  // In other words, it returns the Blue part of Bikeshed::Colour::Blue
  StringRef extractInstanceName(StringRef enumInstance)
  {
    // Find last occurence of ":"
    size_t name_start = enumInstance.size();
    while (name_start > 0 && enumInstance[name_start - 1] != ':')
    {
      --name_start;
    }
    return enumInstance.substr(name_start, enumInstance.size() - name_start);
  }
  } // namespace
  
  std::vector<StringRef> parseEnums(StringRef enums)
  {
    auto enumValues = splitStringRef(enums, ',');
    std::vector<StringRef> parsed;
    parsed.reserve(enumValues.size());
    for (auto const &enumValue : enumValues)
    {
      parsed.push_back(trim(extractInstanceName(enumValue)));
    }
    return parsed;
  }
  
  EnumInfo::~EnumInfo() {}
  
  StringRef EnumInfo::lookup(int value) const
  {
    for (auto const &valueToName : m_values)
    {
      if (valueToName.first == value)
        return valueToName.second;
    }
    return "{** unexpected enum value **}"_sr;
  }
  
  std::unique_ptr<EnumInfo> makeEnumInfo(StringRef enumName,
                                         StringRef allValueNames,
                                         std::vector<int> const &values)
  {
    std::unique_ptr<EnumInfo> enumInfo(new EnumInfo);
    enumInfo->m_name = enumName;
    enumInfo->m_values.reserve(values.size());
  
    const auto valueNames = Catch::Detail::parseEnums(allValueNames);
    assert(valueNames.size() == values.size());
    std::size_t i = 0;
    for (auto value : values)
      enumInfo->m_values.emplace_back(value, valueNames[i++]);
  
    return enumInfo;
  }
  
  EnumInfo const &EnumValuesRegistry::registerEnum(StringRef enumName,
                                                   StringRef allValueNames,
                                                   std::vector<int> const &values)
  {
    m_enumInfos.push_back(makeEnumInfo(enumName, allValueNames, values));
    return *m_enumInfos.back();
  }
  
  } // namespace Detail
  } // namespace Catch
  
  // end catch_enum_values_registry.cpp
  // start catch_errno_guard.cpp
  
  #include <cerrno>
  
  namespace Catch
  {
  ErrnoGuard::ErrnoGuard() : m_oldErrno(errno) {}
  ErrnoGuard::~ErrnoGuard() { errno = m_oldErrno; }
  } // namespace Catch
  // end catch_errno_guard.cpp
  // start catch_exception_translator_registry.cpp
  
  // start catch_exception_translator_registry.h
  
  #include <memory>
  #include <string>
  #include <vector>
  
  namespace Catch
  {
  class ExceptionTranslatorRegistry : public IExceptionTranslatorRegistry
  {
  public:
    ~ExceptionTranslatorRegistry();
    virtual void registerTranslator(const IExceptionTranslator *translator);
    std::string translateActiveException() const override;
    std::string tryTranslators() const;
  
  private:
    std::vector<std::unique_ptr<IExceptionTranslator const>> m_translators;
  };
  } // namespace Catch
  
  // end catch_exception_translator_registry.h
  #ifdef __OBJC__
  #import "Foundation/Foundation.h"
  #endif
  
  namespace Catch
  {
  ExceptionTranslatorRegistry::~ExceptionTranslatorRegistry() {}
  
  void ExceptionTranslatorRegistry::registerTranslator(
      const IExceptionTranslator *translator)
  {
    m_translators.push_back(
        std::unique_ptr<const IExceptionTranslator>(translator));
  }
  
  #if !defined(CATCH_CONFIG_DISABLE_EXCEPTIONS)
  std::string ExceptionTranslatorRegistry::translateActiveException() const
  {
    try
    {
  #ifdef __OBJC__
      // In Objective-C try objective-c exceptions first
      @try
      {
        return tryTranslators();
      }
      @catch (NSException *exception)
      {
        return Catch::Detail::stringify([exception description]);
      }
  #else
      // Compiling a mixed mode project with MSVC means that CLR
      // exceptions will be caught in (...) as well. However, these
      // do not fill-in std::current_exception and thus lead to crash
      // when attempting rethrow.
      // /EHa switch also causes structured exceptions to be caught
      // here, but they fill-in current_exception properly, so
      // at worst the output should be a little weird, instead of
      // causing a crash.
      if (std::current_exception() == nullptr)
      {
        return "Non C++ exception. Possibly a CLR exception.";
      }
      return tryTranslators();
  #endif
    }
    catch (TestFailureException &)
    {
      std::rethrow_exception(std::current_exception());
    }
    catch (std::exception &ex)
    {
      return ex.what();
    }
    catch (std::string &msg)
    {
      return msg;
    }
    catch (const char *msg)
    {
      return msg;
    }
    catch (...)
    {
      return "Unknown exception";
    }
  }
  
  std::string ExceptionTranslatorRegistry::tryTranslators() const
  {
    if (m_translators.empty())
    {
      std::rethrow_exception(std::current_exception());
    }
    else
    {
      return m_translators[0]->translate(m_translators.begin() + 1,
                                         m_translators.end());
    }
  }
  
  #else // ^^ Exceptions are enabled // Exceptions are disabled vv
  std::string ExceptionTranslatorRegistry::translateActiveException() const
  {
    CATCH_INTERNAL_ERROR("Attempted to translate active exception under "
                         "CATCH_CONFIG_DISABLE_EXCEPTIONS!");
  }
  
  std::string ExceptionTranslatorRegistry::tryTranslators() const
  {
    CATCH_INTERNAL_ERROR("Attempted to use exception translators under "
                         "CATCH_CONFIG_DISABLE_EXCEPTIONS!");
  }
  #endif
  
  } // namespace Catch
  // end catch_exception_translator_registry.cpp
  // start catch_fatal_condition.cpp
  
  #if defined(__GNUC__)
  #pragma GCC diagnostic push
  #pragma GCC diagnostic ignored "-Wmissing-field-initializers"
  #endif
  
  #if defined(CATCH_CONFIG_WINDOWS_SEH) || defined(CATCH_CONFIG_POSIX_SIGNALS)
  
  namespace
  {
  // Report the error condition
  void reportFatal(char const *const message)
  {
    Catch::getCurrentContext().getResultCapture()->handleFatalErrorCondition(
        message);
  }
  } // namespace
  
  #endif // signals/SEH handling
  
  #if defined(CATCH_CONFIG_WINDOWS_SEH)
  
  namespace Catch
  {
  struct SignalDefs
  {
    DWORD id;
    const char *name;
  };
  
  // There is no 1-1 mapping between signals and windows exceptions.
  // Windows can easily distinguish between SO and SigSegV,
  // but SigInt, SigTerm, etc are handled differently.
  static SignalDefs signalDefs[] = {
      {static_cast<DWORD>(EXCEPTION_ILLEGAL_INSTRUCTION),
       "SIGILL - Illegal instruction signal"},
      {static_cast<DWORD>(EXCEPTION_STACK_OVERFLOW), "SIGSEGV - Stack overflow"},
      {static_cast<DWORD>(EXCEPTION_ACCESS_VIOLATION),
       "SIGSEGV - Segmentation violation signal"},
      {static_cast<DWORD>(EXCEPTION_INT_DIVIDE_BY_ZERO), "Divide by zero error"},
  };
  
  LONG CALLBACK FatalConditionHandler::handleVectoredException(
      PEXCEPTION_POINTERS ExceptionInfo)
  {
    for (auto const &def : signalDefs)
    {
      if (ExceptionInfo->ExceptionRecord->ExceptionCode == def.id)
      {
        reportFatal(def.name);
      }
    }
    // If its not an exception we care about, pass it along.
    // This stops us from eating debugger breaks etc.
    return EXCEPTION_CONTINUE_SEARCH;
  }
  
  FatalConditionHandler::FatalConditionHandler()
  {
    isSet = true;
    // 32k seems enough for Catch to handle stack overflow,
    // but the value was found experimentally, so there is no strong guarantee
    guaranteeSize          = 32 * 1024;
    exceptionHandlerHandle = nullptr;
    // Register as first handler in current chain
    exceptionHandlerHandle =
        AddVectoredExceptionHandler(1, handleVectoredException);
    // Pass in guarantee size to be filled
    SetThreadStackGuarantee(&guaranteeSize);
  }
  
  void FatalConditionHandler::reset()
  {
    if (isSet)
    {
      RemoveVectoredExceptionHandler(exceptionHandlerHandle);
      SetThreadStackGuarantee(&guaranteeSize);
      exceptionHandlerHandle = nullptr;
      isSet                  = false;
    }
  }
  
  FatalConditionHandler::~FatalConditionHandler() { reset(); }
  
  bool FatalConditionHandler::isSet                   = false;
  ULONG FatalConditionHandler::guaranteeSize          = 0;
  PVOID FatalConditionHandler::exceptionHandlerHandle = nullptr;
  
  } // namespace Catch
  
  #elif defined(CATCH_CONFIG_POSIX_SIGNALS)
  
  namespace Catch
  {
  struct SignalDefs
  {
    int id;
    const char *name;
  };
  
  // 32kb for the alternate stack seems to be sufficient. However, this value
  // is experimentally determined, so that's not guaranteed.
  static constexpr std::size_t sigStackSize =
      32768 >= MINSIGSTKSZ ? 32768 : MINSIGSTKSZ;
  
  static SignalDefs signalDefs[] = {
      {SIGINT, "SIGINT - Terminal interrupt signal"},
      {SIGILL, "SIGILL - Illegal instruction signal"},
      {SIGFPE, "SIGFPE - Floating point error signal"},
      {SIGSEGV, "SIGSEGV - Segmentation violation signal"},
      {SIGTERM, "SIGTERM - Termination request signal"},
      {SIGABRT, "SIGABRT - Abort (abnormal termination) signal"}};
  
  void FatalConditionHandler::handleSignal(int sig)
  {
    char const *name = "<unknown signal>";
    for (auto const &def : signalDefs)
    {
      if (sig == def.id)
      {
        name = def.name;
        break;
      }
    }
    reset();
    reportFatal(name);
    raise(sig);
  }
  
  FatalConditionHandler::FatalConditionHandler()
  {
    isSet = true;
    stack_t sigStack;
    sigStack.ss_sp    = altStackMem;
    sigStack.ss_size  = sigStackSize;
    sigStack.ss_flags = 0;
    sigaltstack(&sigStack, &oldSigStack);
    struct sigaction sa = {};
  
    sa.sa_handler = handleSignal;
    sa.sa_flags   = SA_ONSTACK;
    for (std::size_t i = 0; i < sizeof(signalDefs) / sizeof(SignalDefs); ++i)
    {
      sigaction(signalDefs[i].id, &sa, &oldSigActions[i]);
    }
  }
  
  FatalConditionHandler::~FatalConditionHandler() { reset(); }
  
  void FatalConditionHandler::reset()
  {
    if (isSet)
    {
      // Set signals back to previous values -- hopefully nobody overwrote them in
      // the meantime
      for (std::size_t i = 0; i < sizeof(signalDefs) / sizeof(SignalDefs); ++i)
      {
        sigaction(signalDefs[i].id, &oldSigActions[i], nullptr);
      }
      // Return the old stack
      sigaltstack(&oldSigStack, nullptr);
      isSet = false;
    }
  }
  
  bool FatalConditionHandler::isSet = false;
  struct sigaction FatalConditionHandler::oldSigActions[sizeof(signalDefs) /
                                                        sizeof(SignalDefs)] = {};
  stack_t FatalConditionHandler::oldSigStack                                = {};
  char FatalConditionHandler::altStackMem[sigStackSize]                     = {};
  
  } // namespace Catch
  
  #else
  
  namespace Catch
  {
  void FatalConditionHandler::reset() {}
  } // namespace Catch
  
  #endif // signals/SEH handling
  
  #if defined(__GNUC__)
  #pragma GCC diagnostic pop
  #endif
  // end catch_fatal_condition.cpp
  // start catch_generators.cpp
  
  #include <limits>
  #include <set>
  
  namespace Catch
  {
  IGeneratorTracker::~IGeneratorTracker() {}
  
  const char *GeneratorException::what() const noexcept { return m_msg; }
  
  namespace Generators
  {
  GeneratorUntypedBase::~GeneratorUntypedBase() {}
  
  auto acquireGeneratorTracker(SourceLineInfo const &lineInfo)
      -> IGeneratorTracker &
  {
    return getResultCapture().acquireGeneratorTracker(lineInfo);
  }
  
  } // namespace Generators
  } // namespace Catch
  // end catch_generators.cpp
  // start catch_interfaces_capture.cpp
  
  namespace Catch
  {
  IResultCapture::~IResultCapture() = default;
  }
  // end catch_interfaces_capture.cpp
  // start catch_interfaces_config.cpp
  
  namespace Catch
  {
  IConfig::~IConfig() = default;
  }
  // end catch_interfaces_config.cpp
  // start catch_interfaces_exception.cpp
  
  namespace Catch
  {
  IExceptionTranslator::~IExceptionTranslator()                 = default;
  IExceptionTranslatorRegistry::~IExceptionTranslatorRegistry() = default;
  } // namespace Catch
  // end catch_interfaces_exception.cpp
  // start catch_interfaces_registry_hub.cpp
  
  namespace Catch
  {
  IRegistryHub::~IRegistryHub()               = default;
  IMutableRegistryHub::~IMutableRegistryHub() = default;
  } // namespace Catch
  // end catch_interfaces_registry_hub.cpp
  // start catch_interfaces_reporter.cpp
  
  // start catch_reporter_listening.h
  
  namespace Catch
  {
  class ListeningReporter : public IStreamingReporter
  {
    using Reporters = std::vector<IStreamingReporterPtr>;
    Reporters m_listeners;
    IStreamingReporterPtr m_reporter = nullptr;
    ReporterPreferences m_preferences;
  
  public:
    ListeningReporter();
  
    void addListener(IStreamingReporterPtr &&listener);
    void addReporter(IStreamingReporterPtr &&reporter);
  
  public: // IStreamingReporter
    ReporterPreferences getPreferences() const override;
  
    void noMatchingTestCases(std::string const &spec) override;
  
    void reportInvalidArguments(std::string const &arg) override;
  
    static std::set<Verbosity> getSupportedVerbosities();
  
  #if defined(CATCH_CONFIG_ENABLE_BENCHMARKING)
    void benchmarkPreparing(std::string const &name) override;
    void benchmarkStarting(BenchmarkInfo const &benchmarkInfo) override;
    void benchmarkEnded(BenchmarkStats<> const &benchmarkStats) override;
    void benchmarkFailed(std::string const &) override;
  #endif // CATCH_CONFIG_ENABLE_BENCHMARKING
  
    void testRunStarting(TestRunInfo const &testRunInfo) override;
    void testGroupStarting(GroupInfo const &groupInfo) override;
    void testCaseStarting(TestCaseInfo const &testInfo) override;
    void sectionStarting(SectionInfo const &sectionInfo) override;
    void assertionStarting(AssertionInfo const &assertionInfo) override;
  
    // The return value indicates if the messages buffer should be cleared:
    bool assertionEnded(AssertionStats const &assertionStats) override;
    void sectionEnded(SectionStats const &sectionStats) override;
    void testCaseEnded(TestCaseStats const &testCaseStats) override;
    void testGroupEnded(TestGroupStats const &testGroupStats) override;
    void testRunEnded(TestRunStats const &testRunStats) override;
  
    void skipTest(TestCaseInfo const &testInfo) override;
    bool isMulti() const override;
  };
  
  } // end namespace Catch
  
  // end catch_reporter_listening.h
  namespace Catch
  {
  ReporterConfig::ReporterConfig(IConfigPtr const &_fullConfig)
      : m_stream(&_fullConfig->stream()), m_fullConfig(_fullConfig)
  {}
  
  ReporterConfig::ReporterConfig(IConfigPtr const &_fullConfig,
                                 std::ostream &_stream)
      : m_stream(&_stream), m_fullConfig(_fullConfig)
  {}
  
  std::ostream &ReporterConfig::stream() const { return *m_stream; }
  IConfigPtr ReporterConfig::fullConfig() const { return m_fullConfig; }
  
  TestRunInfo::TestRunInfo(std::string const &_name) : name(_name) {}
  
  GroupInfo::GroupInfo(std::string const &_name, std::size_t _groupIndex,
                       std::size_t _groupsCount)
      : name(_name), groupIndex(_groupIndex), groupsCounts(_groupsCount)
  {}
  
  AssertionStats::AssertionStats(AssertionResult const &_assertionResult,
                                 std::vector<MessageInfo> const &_infoMessages,
                                 Totals const &_totals)
      : assertionResult(_assertionResult), infoMessages(_infoMessages),
        totals(_totals)
  {
    assertionResult.m_resultData.lazyExpression.m_transientExpression =
        _assertionResult.m_resultData.lazyExpression.m_transientExpression;
  
    if (assertionResult.hasMessage())
    {
      // Copy message into messages list.
      // !TBD This should have been done earlier, somewhere
      MessageBuilder builder(assertionResult.getTestMacroName(),
                             assertionResult.getSourceInfo(),
                             assertionResult.getResultType());
      builder << assertionResult.getMessage();
      builder.m_info.message = builder.m_stream.str();
  
      infoMessages.push_back(builder.m_info);
    }
  }
  
  AssertionStats::~AssertionStats() = default;
  
  SectionStats::SectionStats(SectionInfo const &_sectionInfo,
                             Counts const &_assertions, double _durationInSeconds,
                             bool _missingAssertions)
      : sectionInfo(_sectionInfo), assertions(_assertions),
        durationInSeconds(_durationInSeconds),
        missingAssertions(_missingAssertions)
  {}
  
  SectionStats::~SectionStats() = default;
  
  TestCaseStats::TestCaseStats(TestCaseInfo const &_testInfo,
                               Totals const &_totals, std::string const &_stdOut,
                               std::string const &_stdErr, bool _aborting)
      : testInfo(_testInfo), totals(_totals), stdOut(_stdOut), stdErr(_stdErr),
        aborting(_aborting)
  {}
  
  TestCaseStats::~TestCaseStats() = default;
  
  TestGroupStats::TestGroupStats(GroupInfo const &_groupInfo,
                                 Totals const &_totals, bool _aborting)
      : groupInfo(_groupInfo), totals(_totals), aborting(_aborting)
  {}
  
  TestGroupStats::TestGroupStats(GroupInfo const &_groupInfo)
      : groupInfo(_groupInfo), aborting(false)
  {}
  
  TestGroupStats::~TestGroupStats() = default;
  
  TestRunStats::TestRunStats(TestRunInfo const &_runInfo, Totals const &_totals,
                             bool _aborting)
      : runInfo(_runInfo), totals(_totals), aborting(_aborting)
  {}
  
  TestRunStats::~TestRunStats() = default;
  
  void IStreamingReporter::fatalErrorEncountered(StringRef) {}
  bool IStreamingReporter::isMulti() const { return false; }
  
  IReporterFactory::~IReporterFactory()   = default;
  IReporterRegistry::~IReporterRegistry() = default;
  
  } // end namespace Catch
  // end catch_interfaces_reporter.cpp
  // start catch_interfaces_runner.cpp
  
  namespace Catch
  {
  IRunner::~IRunner() = default;
  }
  // end catch_interfaces_runner.cpp
  // start catch_interfaces_testcase.cpp
  
  namespace Catch
  {
  ITestInvoker::~ITestInvoker()           = default;
  ITestCaseRegistry::~ITestCaseRegistry() = default;
  } // namespace Catch
  // end catch_interfaces_testcase.cpp
  // start catch_leak_detector.cpp
  
  #ifdef CATCH_CONFIG_WINDOWS_CRTDBG
  #include <crtdbg.h>
  
  namespace Catch
  {
  LeakDetector::LeakDetector()
  {
    int flag = _CrtSetDbgFlag(_CRTDBG_REPORT_FLAG);
    flag |= _CRTDBG_LEAK_CHECK_DF;
    flag |= _CRTDBG_ALLOC_MEM_DF;
    _CrtSetDbgFlag(flag);
    _CrtSetReportMode(_CRT_WARN, _CRTDBG_MODE_FILE | _CRTDBG_MODE_DEBUG);
    _CrtSetReportFile(_CRT_WARN, _CRTDBG_FILE_STDERR);
    // Change this to leaking allocation's number to break there
    _CrtSetBreakAlloc(-1);
  }
  } // namespace Catch
  
  #else
  
  Catch::LeakDetector::LeakDetector() {}
  
  #endif
  
  Catch::LeakDetector::~LeakDetector() { Catch::cleanUp(); }
  // end catch_leak_detector.cpp
  // start catch_list.cpp
  
  // start catch_list.h
  
  #include <set>
  
  namespace Catch
  {
  std::size_t listTests(Config const &config);
  
  std::size_t listTestsNamesOnly(Config const &config);
  
  struct TagInfo
  {
    void add(std::string const &spelling);
    std::string all() const;
  
    std::set<std::string> spellings;
    std::size_t count = 0;
  };
  
  std::size_t listTags(Config const &config);
  
  std::size_t listReporters();
  
  Option<std::size_t> list(std::shared_ptr<Config> const &config);
  
  } // end namespace Catch
  
  // end catch_list.h
  // start catch_text.h
  
  namespace Catch
  {
  using namespace clara::TextFlow;
  }
  
  // end catch_text.h
  #include <algorithm>
  #include <iomanip>
  #include <limits>
  
  namespace Catch
  {
  std::size_t listTests(Config const &config)
  {
    TestSpec const &testSpec = config.testSpec();
    if (config.hasTestFilters())
      Catch::cout() << "Matching test cases:\n";
    else
    {
      Catch::cout() << "All available test cases:\n";
    }
  
    auto matchedTestCases =
        filterTests(getAllTestCasesSorted(config), testSpec, config);
    for (auto const &testCaseInfo : matchedTestCases)
    {
      Colour::Code colour =
          testCaseInfo.isHidden() ? Colour::SecondaryText : Colour::None;
      Colour colourGuard(colour);
  
      Catch::cout() << Column(testCaseInfo.name).initialIndent(2).indent(4)
                    << "\n";
      if (config.verbosity() >= Verbosity::High)
      {
        Catch::cout()
            << Column(Catch::Detail::stringify(testCaseInfo.lineInfo)).indent(4)
            << std::endl;
        std::string description = testCaseInfo.description;
        if (description.empty())
          description = "(NO DESCRIPTION)";
        Catch::cout() << Column(description).indent(4) << std::endl;
      }
      if (!testCaseInfo.tags.empty())
        Catch::cout() << Column(testCaseInfo.tagsAsString()).indent(6) << "\n";
    }
  
    if (!config.hasTestFilters())
      Catch::cout() << pluralise(matchedTestCases.size(), "test case") << '\n'
                    << std::endl;
    else
      Catch::cout() << pluralise(matchedTestCases.size(), "matching test case")
                    << '\n'
                    << std::endl;
    return matchedTestCases.size();
  }
  
  std::size_t listTestsNamesOnly(Config const &config)
  {
    TestSpec const &testSpec = config.testSpec();
    std::size_t matchedTests = 0;
    std::vector<TestCase> matchedTestCases =
        filterTests(getAllTestCasesSorted(config), testSpec, config);
    for (auto const &testCaseInfo : matchedTestCases)
    {
      matchedTests++;
      if (startsWith(testCaseInfo.name, '#'))
        Catch::cout() << '"' << testCaseInfo.name << '"';
      else
        Catch::cout() << testCaseInfo.name;
      if (config.verbosity() >= Verbosity::High)
        Catch::cout() << "\t@" << testCaseInfo.lineInfo;
      Catch::cout() << std::endl;
    }
    return matchedTests;
  }
  
  void TagInfo::add(std::string const &spelling)
  {
    ++count;
    spellings.insert(spelling);
  }
  
  std::string TagInfo::all() const
  {
    size_t size = 0;
    for (auto const &spelling : spellings)
    {
      // Add 2 for the brackes
      size += spelling.size() + 2;
    }
  
    std::string out;
    out.reserve(size);
    for (auto const &spelling : spellings)
    {
      out += '[';
      out += spelling;
      out += ']';
    }
    return out;
  }
  
  std::size_t listTags(Config const &config)
  {
    TestSpec const &testSpec = config.testSpec();
    if (config.hasTestFilters())
      Catch::cout() << "Tags for matching test cases:\n";
    else
    {
      Catch::cout() << "All available tags:\n";
    }
  
    std::map<std::string, TagInfo> tagCounts;
  
    std::vector<TestCase> matchedTestCases =
        filterTests(getAllTestCasesSorted(config), testSpec, config);
    for (auto const &testCase : matchedTestCases)
    {
      for (auto const &tagName : testCase.getTestCaseInfo().tags)
      {
        std::string lcaseTagName = toLower(tagName);
        auto countIt             = tagCounts.find(lcaseTagName);
        if (countIt == tagCounts.end())
          countIt =
              tagCounts.insert(std::make_pair(lcaseTagName, TagInfo())).first;
        countIt->second.add(tagName);
      }
    }
  
    for (auto const &tagCount : tagCounts)
    {
      ReusableStringStream rss;
      rss << "  " << std::setw(2) << tagCount.second.count << "  ";
      auto str     = rss.str();
      auto wrapper = Column(tagCount.second.all())
                         .initialIndent(0)
                         .indent(str.size())
                         .width(CATCH_CONFIG_CONSOLE_WIDTH - 10);
      Catch::cout() << str << wrapper << '\n';
    }
    Catch::cout() << pluralise(tagCounts.size(), "tag") << '\n' << std::endl;
    return tagCounts.size();
  }
  
  std::size_t listReporters()
  {
    Catch::cout() << "Available reporters:\n";
    IReporterRegistry::FactoryMap const &factories =
        getRegistryHub().getReporterRegistry().getFactories();
    std::size_t maxNameLen = 0;
    for (auto const &factoryKvp : factories)
      maxNameLen = (std::max)(maxNameLen, factoryKvp.first.size());
  
    for (auto const &factoryKvp : factories)
    {
      Catch::cout()
          << Column(factoryKvp.first + ":").indent(2).width(5 + maxNameLen) +
                 Column(factoryKvp.second->getDescription())
                     .initialIndent(0)
                     .indent(2)
                     .width(CATCH_CONFIG_CONSOLE_WIDTH - maxNameLen - 8)
          << "\n";
    }
    Catch::cout() << std::endl;
    return factories.size();
  }
  
  Option<std::size_t> list(std::shared_ptr<Config> const &config)
  {
    Option<std::size_t> listedCount;
    getCurrentMutableContext().setConfig(config);
    if (config->listTests())
      listedCount = listedCount.valueOr(0) + listTests(*config);
    if (config->listTestNamesOnly())
      listedCount = listedCount.valueOr(0) + listTestsNamesOnly(*config);
    if (config->listTags())
      listedCount = listedCount.valueOr(0) + listTags(*config);
    if (config->listReporters())
      listedCount = listedCount.valueOr(0) + listReporters();
    return listedCount;
  }
  
  } // end namespace Catch
  // end catch_list.cpp
  // start catch_matchers.cpp
  
  namespace Catch
  {
  namespace Matchers
  {
  namespace Impl
  {
  std::string MatcherUntypedBase::toString() const
  {
    if (m_cachedToString.empty())
      m_cachedToString = describe();
    return m_cachedToString;
  }
  
  MatcherUntypedBase::~MatcherUntypedBase() = default;
  
  } // namespace Impl
  } // namespace Matchers
  
  using namespace Matchers;
  using Matchers::Impl::MatcherBase;
  
  } // namespace Catch
  // end catch_matchers.cpp
  // start catch_matchers_exception.cpp
  
  namespace Catch
  {
  namespace Matchers
  {
  namespace Exception
  {
  bool ExceptionMessageMatcher::match(std::exception const &ex) const
  {
    return ex.what() == m_message;
  }
  
  std::string ExceptionMessageMatcher::describe() const
  {
    return "exception message matches \"" + m_message + "\"";
  }
  
  } // namespace Exception
  Exception::ExceptionMessageMatcher Message(std::string const &message)
  {
    return Exception::ExceptionMessageMatcher(message);
  }
  
  // namespace Exception
  } // namespace Matchers
  } // namespace Catch
  // end catch_matchers_exception.cpp
  // start catch_matchers_floating.cpp
  
  // start catch_polyfills.hpp
  
  namespace Catch
  {
  bool isnan(float f);
  bool isnan(double d);
  } // namespace Catch
  
  // end catch_polyfills.hpp
  // start catch_to_string.hpp
  
  #include <string>
  
  namespace Catch
  {
  template<typename T>
  std::string to_string(T const &t)
  {
  #if defined(CATCH_CONFIG_CPP11_TO_STRING)
    return std::to_string(t);
  #else
    ReusableStringStream rss;
    rss << t;
    return rss.str();
  #endif
  }
  } // end namespace Catch
  
  // end catch_to_string.hpp
  #include <algorithm>
  #include <cmath>
  #include <cstdint>
  #include <cstdlib>
  #include <cstring>
  #include <iomanip>
  #include <limits>
  #include <sstream>
  #include <type_traits>
  
  namespace Catch
  {
  namespace
  {
  int32_t convert(float f)
  {
    static_assert(sizeof(float) == sizeof(int32_t),
                  "Important ULP matcher assumption violated");
    int32_t i;
    std::memcpy(&i, &f, sizeof(f));
    return i;
  }
  
  int64_t convert(double d)
  {
    static_assert(sizeof(double) == sizeof(int64_t),
                  "Important ULP matcher assumption violated");
    int64_t i;
    std::memcpy(&i, &d, sizeof(d));
    return i;
  }
  
  template<typename FP>
  bool almostEqualUlps(FP lhs, FP rhs, uint64_t maxUlpDiff)
  {
    // Comparison with NaN should always be false.
    // This way we can rule it out before getting into the ugly details
    if (Catch::isnan(lhs) || Catch::isnan(rhs))
    {
      return false;
    }
  
    auto lc = convert(lhs);
    auto rc = convert(rhs);
  
    if ((lc < 0) != (rc < 0))
    {
      // Potentially we can have +0 and -0
      return lhs == rhs;
    }
  
    auto ulpDiff = std::abs(lc - rc);
    return static_cast<uint64_t>(ulpDiff) <= maxUlpDiff;
  }
  
  #if defined(CATCH_CONFIG_GLOBAL_NEXTAFTER)
  
  float nextafter(float x, float y) { return ::nextafterf(x, y); }
  
  double nextafter(double x, double y) { return ::nextafter(x, y); }
  
  #endif // ^^^ CATCH_CONFIG_GLOBAL_NEXTAFTER ^^^
  
  template<typename FP>
  FP step(FP start, FP direction, uint64_t steps)
  {
    for (uint64_t i = 0; i < steps; ++i)
    {
  #if defined(CATCH_CONFIG_GLOBAL_NEXTAFTER)
      start = Catch::nextafter(start, direction);
  #else
      start = std::nextafter(start, direction);
  #endif
    }
    return start;
  }
  
  // Performs equivalent check of std::fabs(lhs - rhs) <= margin
  // But without the subtraction to allow for INFINITY in comparison
  bool marginComparison(double lhs, double rhs, double margin)
  {
    return (lhs + margin >= rhs) && (rhs + margin >= lhs);
  }
  
  template<typename FloatingPoint>
  void write(std::ostream &out, FloatingPoint num)
  {
    out << std::scientific
        << std::setprecision(std::numeric_limits<FloatingPoint>::max_digits10 - 1)
        << num;
  }
  
  } // end anonymous namespace
  
  namespace Matchers
  {
  namespace Floating
  {
  enum class FloatingPointKind : uint8_t
  {
    Float,
    Double
  };
  
  WithinAbsMatcher::WithinAbsMatcher(double target, double margin)
      : m_target{target}, m_margin{margin}
  {
    CATCH_ENFORCE(margin >= 0,
                  "Invalid margin: " << margin << '.'
                                     << " Margin has to be non-negative.");
  }
  
  // Performs equivalent check of std::fabs(lhs - rhs) <= margin
  // But without the subtraction to allow for INFINITY in comparison
  bool WithinAbsMatcher::match(double const &matchee) const
  {
    return (matchee + m_margin >= m_target) && (m_target + m_margin >= matchee);
  }
  
  std::string WithinAbsMatcher::describe() const
  {
    return "is within " + ::Catch::Detail::stringify(m_margin) + " of " +
           ::Catch::Detail::stringify(m_target);
  }
  
  WithinUlpsMatcher::WithinUlpsMatcher(double target, uint64_t ulps,
                                       FloatingPointKind baseType)
      : m_target{target}, m_ulps{ulps}, m_type{baseType}
  {
    CATCH_ENFORCE(m_type == FloatingPointKind::Double ||
                      m_ulps < (std::numeric_limits<uint32_t>::max)(),
                  "Provided ULP is impossibly large for a float comparison.");
  }
  
  #if defined(__clang__)
  #pragma clang diagnostic push
  // Clang <3.5 reports on the default branch in the switch below
  #pragma clang diagnostic ignored "-Wunreachable-code"
  #endif
  
  bool WithinUlpsMatcher::match(double const &matchee) const
  {
    switch (m_type)
    {
    case FloatingPointKind::Float:
      return almostEqualUlps<float>(static_cast<float>(matchee),
                                    static_cast<float>(m_target), m_ulps);
    case FloatingPointKind::Double:
      return almostEqualUlps<double>(matchee, m_target, m_ulps);
    default:
      CATCH_INTERNAL_ERROR("Unknown FloatingPointKind value");
    }
  }
  
  #if defined(__clang__)
  #pragma clang diagnostic pop
  #endif
  
  std::string WithinUlpsMatcher::describe() const
  {
    std::stringstream ret;
  
    ret << "is within " << m_ulps << " ULPs of ";
  
    if (m_type == FloatingPointKind::Float)
    {
      write(ret, static_cast<float>(m_target));
      ret << 'f';
    }
    else
    {
      write(ret, m_target);
    }
  
    ret << " ([";
    if (m_type == FloatingPointKind::Double)
    {
      write(ret, step(m_target, static_cast<double>(-INFINITY), m_ulps));
      ret << ", ";
      write(ret, step(m_target, static_cast<double>(INFINITY), m_ulps));
    }
    else
    {
      // We have to cast INFINITY to float because of MinGW, see #1782
      write(ret, step(static_cast<float>(m_target), static_cast<float>(-INFINITY),
                      m_ulps));
      ret << ", ";
      write(ret, step(static_cast<float>(m_target), static_cast<float>(INFINITY),
                      m_ulps));
    }
    ret << "])";
  
    return ret.str();
  }
  
  WithinRelMatcher::WithinRelMatcher(double target, double epsilon)
      : m_target(target), m_epsilon(epsilon)
  {
    CATCH_ENFORCE(m_epsilon >= 0.,
                  "Relative comparison with epsilon <  0 does not make sense.");
    CATCH_ENFORCE(m_epsilon < 1.,
                  "Relative comparison with epsilon >= 1 does not make sense.");
  }
  
  bool WithinRelMatcher::match(double const &matchee) const
  {
    const auto relMargin =
        m_epsilon * (std::max)(std::fabs(matchee), std::fabs(m_target));
    return marginComparison(matchee, m_target,
                            std::isinf(relMargin) ? 0 : relMargin);
  }
  
  std::string WithinRelMatcher::describe() const
  {
    Catch::ReusableStringStream sstr;
    sstr << "and " << m_target << " are within " << m_epsilon * 100.
         << "% of each other";
    return sstr.str();
  }
  
  } // namespace Floating
  
  Floating::WithinUlpsMatcher WithinULP(double target, uint64_t maxUlpDiff)
  {
    return Floating::WithinUlpsMatcher(target, maxUlpDiff,
                                       Floating::FloatingPointKind::Double);
  }
  
  Floating::WithinUlpsMatcher WithinULP(float target, uint64_t maxUlpDiff)
  {
    return Floating::WithinUlpsMatcher(target, maxUlpDiff,
                                       Floating::FloatingPointKind::Float);
  }
  
  Floating::WithinAbsMatcher WithinAbs(double target, double margin)
  {
    return Floating::WithinAbsMatcher(target, margin);
  }
  
  Floating::WithinRelMatcher WithinRel(double target, double eps)
  {
    return Floating::WithinRelMatcher(target, eps);
  }
  
  Floating::WithinRelMatcher WithinRel(double target)
  {
    return Floating::WithinRelMatcher(
        target, std::numeric_limits<double>::epsilon() * 100);
  }
  
  Floating::WithinRelMatcher WithinRel(float target, float eps)
  {
    return Floating::WithinRelMatcher(target, eps);
  }
  
  Floating::WithinRelMatcher WithinRel(float target)
  {
    return Floating::WithinRelMatcher(
        target, std::numeric_limits<float>::epsilon() * 100);
  }
  
  } // namespace Matchers
  } // namespace Catch
  
  // end catch_matchers_floating.cpp
  // start catch_matchers_generic.cpp
  
  std::string
  Catch::Matchers::Generic::Detail::finalizeDescription(const std::string &desc)
  {
    if (desc.empty())
    {
      return "matches undescribed predicate";
    }
    else
    {
      return "matches predicate: \"" + desc + '"';
    }
  }
  // end catch_matchers_generic.cpp
  // start catch_matchers_string.cpp
  
  #include <regex>
  
  namespace Catch
  {
  namespace Matchers
  {
  namespace StdString
  {
  CasedString::CasedString(std::string const &str,
                           CaseSensitive::Choice caseSensitivity)
      : m_caseSensitivity(caseSensitivity), m_str(adjustString(str))
  {}
  std::string CasedString::adjustString(std::string const &str) const
  {
    return m_caseSensitivity == CaseSensitive::No ? toLower(str) : str;
  }
  std::string CasedString::caseSensitivitySuffix() const
  {
    return m_caseSensitivity == CaseSensitive::No ? " (case insensitive)"
                                                  : std::string();
  }
  
  StringMatcherBase::StringMatcherBase(std::string const &operation,
                                       CasedString const &comparator)
      : m_comparator(comparator), m_operation(operation)
  {}
  
  std::string StringMatcherBase::describe() const
  {
    std::string description;
    description.reserve(5 + m_operation.size() + m_comparator.m_str.size() +
                        m_comparator.caseSensitivitySuffix().size());
    description += m_operation;
    description += ": \"";
    description += m_comparator.m_str;
    description += "\"";
    description += m_comparator.caseSensitivitySuffix();
    return description;
  }
  
  EqualsMatcher::EqualsMatcher(CasedString const &comparator)
      : StringMatcherBase("equals", comparator)
  {}
  
  bool EqualsMatcher::match(std::string const &source) const
  {
    return m_comparator.adjustString(source) == m_comparator.m_str;
  }
  
  ContainsMatcher::ContainsMatcher(CasedString const &comparator)
      : StringMatcherBase("contains", comparator)
  {}
  
  bool ContainsMatcher::match(std::string const &source) const
  {
    return contains(m_comparator.adjustString(source), m_comparator.m_str);
  }
  
  StartsWithMatcher::StartsWithMatcher(CasedString const &comparator)
      : StringMatcherBase("starts with", comparator)
  {}
  
  bool StartsWithMatcher::match(std::string const &source) const
  {
    return startsWith(m_comparator.adjustString(source), m_comparator.m_str);
  }
  
  EndsWithMatcher::EndsWithMatcher(CasedString const &comparator)
      : StringMatcherBase("ends with", comparator)
  {}
  
  bool EndsWithMatcher::match(std::string const &source) const
  {
    return endsWith(m_comparator.adjustString(source), m_comparator.m_str);
  }
  
  RegexMatcher::RegexMatcher(std::string regex,
                             CaseSensitive::Choice caseSensitivity)
      : m_regex(std::move(regex)), m_caseSensitivity(caseSensitivity)
  {}
  
  bool RegexMatcher::match(std::string const &matchee) const
  {
    auto flags =
        std::regex::ECMAScript; // ECMAScript is the default syntax option anyway
    if (m_caseSensitivity == CaseSensitive::Choice::No)
    {
      flags |= std::regex::icase;
    }
    auto reg = std::regex(m_regex, flags);
    return std::regex_match(matchee, reg);
  }
  
  std::string RegexMatcher::describe() const
  {
    return "matches " + ::Catch::Detail::stringify(m_regex) +
           ((m_caseSensitivity == CaseSensitive::Choice::Yes)
                ? " case sensitively"
                : " case insensitively");
  }
  
  } // namespace StdString
  
  StdString::EqualsMatcher
  Equals(std::string const &str, CaseSensitive::Choice caseSensitivity)
  {
    return StdString::EqualsMatcher(StdString::CasedString(str, caseSensitivity));
  }
  StdString::ContainsMatcher
  Contains(std::string const &str, CaseSensitive::Choice caseSensitivity)
  {
    return StdString::ContainsMatcher(
        StdString::CasedString(str, caseSensitivity));
  }
  StdString::EndsWithMatcher
  EndsWith(std::string const &str, CaseSensitive::Choice caseSensitivity)
  {
    return StdString::EndsWithMatcher(
        StdString::CasedString(str, caseSensitivity));
  }
  StdString::StartsWithMatcher
  StartsWith(std::string const &str, CaseSensitive::Choice caseSensitivity)
  {
    return StdString::StartsWithMatcher(
        StdString::CasedString(str, caseSensitivity));
  }
  
  StdString::RegexMatcher
  Matches(std::string const &regex, CaseSensitive::Choice caseSensitivity)
  {
    return StdString::RegexMatcher(regex, caseSensitivity);
  }
  
  } // namespace Matchers
  } // namespace Catch
  // end catch_matchers_string.cpp
  // start catch_message.cpp
  
  // start catch_uncaught_exceptions.h
  
  namespace Catch
  {
  bool uncaught_exceptions();
  } // end namespace Catch
  
  // end catch_uncaught_exceptions.h
  #include <cassert>
  #include <stack>
  
  namespace Catch
  {
  MessageInfo::MessageInfo(StringRef const &_macroName,
                           SourceLineInfo const &_lineInfo,
                           ResultWas::OfType _type)
      : macroName(_macroName), lineInfo(_lineInfo), type(_type),
        sequence(++globalCount)
  {}
  
  bool MessageInfo::operator==(MessageInfo const &other) const
  {
    return sequence == other.sequence;
  }
  
  bool MessageInfo::operator<(MessageInfo const &other) const
  {
    return sequence < other.sequence;
  }
  
  // This may need protecting if threading support is added
  unsigned int MessageInfo::globalCount = 0;
  
  ////////////////////////////////////////////////////////////////////////////
  
  Catch::MessageBuilder::MessageBuilder(StringRef const &macroName,
                                        SourceLineInfo const &lineInfo,
                                        ResultWas::OfType type)
      : m_info(macroName, lineInfo, type)
  {}
  
  ////////////////////////////////////////////////////////////////////////////
  
  ScopedMessage::ScopedMessage(MessageBuilder const &builder)
      : m_info(builder.m_info), m_moved()
  {
    m_info.message = builder.m_stream.str();
    getResultCapture().pushScopedMessage(m_info);
  }
  
  ScopedMessage::ScopedMessage(ScopedMessage &&old)
      : m_info(old.m_info), m_moved()
  {
    old.m_moved = true;
  }
  
  ScopedMessage::~ScopedMessage()
  {
    if (!uncaught_exceptions() && !m_moved)
    {
      getResultCapture().popScopedMessage(m_info);
    }
  }
  
  Capturer::Capturer(StringRef macroName, SourceLineInfo const &lineInfo,
                     ResultWas::OfType resultType, StringRef names)
  {
    auto trimmed = [&](size_t start, size_t end) {
      while (names[start] == ',' || isspace(names[start]))
      {
        ++start;
      }
      while (names[end] == ',' || isspace(names[end]))
      {
        --end;
      }
      return names.substr(start, end - start + 1);
    };
    auto skipq = [&](size_t start, char quote) {
      for (auto i = start + 1; i < names.size(); ++i)
      {
        if (names[i] == quote)
          return i;
        if (names[i] == '\\')
          ++i;
      }
      CATCH_INTERNAL_ERROR("CAPTURE parsing encountered unmatched quote");
    };
  
    size_t start = 0;
    std::stack<char> openings;
    for (size_t pos = 0; pos < names.size(); ++pos)
    {
      char c = names[pos];
      switch (c)
      {
      case '[':
      case '{':
      case '(':
        // It is basically impossible to disambiguate between
        // comparison and start of template args in this context
        //            case '<':
        openings.push(c);
        break;
      case ']':
      case '}':
      case ')':
        //           case '>':
        openings.pop();
        break;
      case '"':
      case '\'':
        pos = skipq(pos, c);
        break;
      case ',':
        if (start != pos && openings.empty())
        {
          m_messages.emplace_back(macroName, lineInfo, resultType);
          m_messages.back().message =
              static_cast<std::string>(trimmed(start, pos));
          m_messages.back().message += " := ";
          start = pos;
        }
      }
    }
    assert(openings.empty() && "Mismatched openings");
    m_messages.emplace_back(macroName, lineInfo, resultType);
    m_messages.back().message =
        static_cast<std::string>(trimmed(start, names.size() - 1));
    m_messages.back().message += " := ";
  }
  Capturer::~Capturer()
  {
    if (!uncaught_exceptions())
    {
      assert(m_captured == m_messages.size());
      for (size_t i = 0; i < m_captured; ++i)
        m_resultCapture.popScopedMessage(m_messages[i]);
    }
  }
  
  void Capturer::captureValue(size_t index, std::string const &value)
  {
    assert(index < m_messages.size());
    m_messages[index].message += value;
    m_resultCapture.pushScopedMessage(m_messages[index]);
    m_captured++;
  }
  
  } // end namespace Catch
  // end catch_message.cpp
  // start catch_output_redirect.cpp
  
  // start catch_output_redirect.h
  #ifndef TWOBLUECUBES_CATCH_OUTPUT_REDIRECT_H
  #define TWOBLUECUBES_CATCH_OUTPUT_REDIRECT_H
  
  #include <cstdio>
  #include <iosfwd>
  #include <string>
  
  namespace Catch
  {
  class RedirectedStream
  {
    std::ostream &m_originalStream;
    std::ostream &m_redirectionStream;
    std::streambuf *m_prevBuf;
  
  public:
    RedirectedStream(std::ostream &originalStream,
                     std::ostream &redirectionStream);
    ~RedirectedStream();
  };
  
  class RedirectedStdOut
  {
    ReusableStringStream m_rss;
    RedirectedStream m_cout;
  
  public:
    RedirectedStdOut();
    auto str() const -> std::string;
  };
  
  // StdErr has two constituent streams in C++, std::cerr and std::clog
  // This means that we need to redirect 2 streams into 1 to keep proper
  // order of writes
  class RedirectedStdErr
  {
    ReusableStringStream m_rss;
    RedirectedStream m_cerr;
    RedirectedStream m_clog;
  
  public:
    RedirectedStdErr();
    auto str() const -> std::string;
  };
  
  class RedirectedStreams
  {
  public:
    RedirectedStreams(RedirectedStreams const &) = delete;
    RedirectedStreams &operator=(RedirectedStreams const &) = delete;
    RedirectedStreams(RedirectedStreams &&)                 = delete;
    RedirectedStreams &operator=(RedirectedStreams &&) = delete;
  
    RedirectedStreams(std::string &redirectedCout, std::string &redirectedCerr);
    ~RedirectedStreams();
  
  private:
    std::string &m_redirectedCout;
    std::string &m_redirectedCerr;
    RedirectedStdOut m_redirectedStdOut;
    RedirectedStdErr m_redirectedStdErr;
  };
  
  #if defined(CATCH_CONFIG_NEW_CAPTURE)
  
  // Windows's implementation of std::tmpfile is terrible (it tries
  // to create a file inside system folder, thus requiring elevated
  // privileges for the binary), so we have to use tmpnam(_s) and
  // create the file ourselves there.
  class TempFile
  {
  public:
    TempFile(TempFile const &) = delete;
    TempFile &operator=(TempFile const &) = delete;
    TempFile(TempFile &&)                 = delete;
    TempFile &operator=(TempFile &&) = delete;
  
    TempFile();
    ~TempFile();
  
    std::FILE *getFile();
    std::string getContents();
  
  private:
    std::FILE *m_file = nullptr;
  #if defined(_MSC_VER)
    char m_buffer[L_tmpnam] = {0};
  #endif
  };
  
  class OutputRedirect
  {
  public:
    OutputRedirect(OutputRedirect const &) = delete;
    OutputRedirect &operator=(OutputRedirect const &) = delete;
    OutputRedirect(OutputRedirect &&)                 = delete;
    OutputRedirect &operator=(OutputRedirect &&) = delete;
  
    OutputRedirect(std::string &stdout_dest, std::string &stderr_dest);
    ~OutputRedirect();
  
  private:
    int m_originalStdout = -1;
    int m_originalStderr = -1;
    TempFile m_stdoutFile;
    TempFile m_stderrFile;
    std::string &m_stdoutDest;
    std::string &m_stderrDest;
  };
  
  #endif
  
  } // end namespace Catch
  
  #endif // TWOBLUECUBES_CATCH_OUTPUT_REDIRECT_H
  // end catch_output_redirect.h
  #include <cstdio>
  #include <cstring>
  #include <fstream>
  #include <sstream>
  #include <stdexcept>
  
  #if defined(CATCH_CONFIG_NEW_CAPTURE)
  #if defined(_MSC_VER)
  #include <io.h> //_dup and _dup2
  #define dup _dup
  #define dup2 _dup2
  #define fileno _fileno
  #else
  #include <unistd.h> // dup and dup2
  #endif
  #endif
  
  namespace Catch
  {
  RedirectedStream::RedirectedStream(std::ostream &originalStream,
                                     std::ostream &redirectionStream)
      : m_originalStream(originalStream), m_redirectionStream(redirectionStream),
        m_prevBuf(m_originalStream.rdbuf())
  {
    m_originalStream.rdbuf(m_redirectionStream.rdbuf());
  }
  
  RedirectedStream::~RedirectedStream() { m_originalStream.rdbuf(m_prevBuf); }
  
  RedirectedStdOut::RedirectedStdOut() : m_cout(Catch::cout(), m_rss.get()) {}
  auto RedirectedStdOut::str() const -> std::string { return m_rss.str(); }
  
  RedirectedStdErr::RedirectedStdErr()
      : m_cerr(Catch::cerr(), m_rss.get()), m_clog(Catch::clog(), m_rss.get())
  {}
  auto RedirectedStdErr::str() const -> std::string { return m_rss.str(); }
  
  RedirectedStreams::RedirectedStreams(std::string &redirectedCout,
                                       std::string &redirectedCerr)
      : m_redirectedCout(redirectedCout), m_redirectedCerr(redirectedCerr)
  {}
  
  RedirectedStreams::~RedirectedStreams()
  {
    m_redirectedCout += m_redirectedStdOut.str();
    m_redirectedCerr += m_redirectedStdErr.str();
  }
  
  #if defined(CATCH_CONFIG_NEW_CAPTURE)
  
  #if defined(_MSC_VER)
  TempFile::TempFile()
  {
    if (tmpnam_s(m_buffer))
    {
      CATCH_RUNTIME_ERROR("Could not get a temp filename");
    }
    if (fopen_s(&m_file, m_buffer, "w"))
    {
      char buffer[100];
      if (strerror_s(buffer, errno))
      {
        CATCH_RUNTIME_ERROR("Could not translate errno to a string");
      }
      CATCH_RUNTIME_ERROR("Could not open the temp file: '"
                          << m_buffer << "' because: " << buffer);
    }
  }
  #else
  TempFile::TempFile()
  {
    m_file = std::tmpfile();
    if (!m_file)
    {
      CATCH_RUNTIME_ERROR("Could not create a temp file.");
    }
  }
  
  #endif
  
  TempFile::~TempFile()
  {
    // TBD: What to do about errors here?
    std::fclose(m_file);
    // We manually create the file on Windows only, on Linux
    // it will be autodeleted
  #if defined(_MSC_VER)
    std::remove(m_buffer);
  #endif
  }
  
  FILE *TempFile::getFile() { return m_file; }
  
  std::string TempFile::getContents()
  {
    std::stringstream sstr;
    char buffer[100] = {};
    std::rewind(m_file);
    while (std::fgets(buffer, sizeof(buffer), m_file))
    {
      sstr << buffer;
    }
    return sstr.str();
  }
  
  OutputRedirect::OutputRedirect(std::string &stdout_dest,
                                 std::string &stderr_dest)
      : m_originalStdout(dup(1)), m_originalStderr(dup(2)),
        m_stdoutDest(stdout_dest), m_stderrDest(stderr_dest)
  {
    dup2(fileno(m_stdoutFile.getFile()), 1);
    dup2(fileno(m_stderrFile.getFile()), 2);
  }
  
  OutputRedirect::~OutputRedirect()
  {
    Catch::cout() << std::flush;
    fflush(stdout);
    // Since we support overriding these streams, we flush cerr
    // even though std::cerr is unbuffered
    Catch::cerr() << std::flush;
    Catch::clog() << std::flush;
    fflush(stderr);
  
    dup2(m_originalStdout, 1);
    dup2(m_originalStderr, 2);
  
    m_stdoutDest += m_stdoutFile.getContents();
    m_stderrDest += m_stderrFile.getContents();
  }
  
  #endif // CATCH_CONFIG_NEW_CAPTURE
  
  } // namespace Catch
  
  #if defined(CATCH_CONFIG_NEW_CAPTURE)
  #if defined(_MSC_VER)
  #undef dup
  #undef dup2
  #undef fileno
  #endif
  #endif
  // end catch_output_redirect.cpp
  // start catch_polyfills.cpp
  
  #include <cmath>
  
  namespace Catch
  {
  #if !defined(CATCH_CONFIG_POLYFILL_ISNAN)
  bool isnan(float f) { return std::isnan(f); }
  bool isnan(double d) { return std::isnan(d); }
  #else
  // For now we only use this for embarcadero
  bool isnan(float f) { return std::_isnan(f); }
  bool isnan(double d) { return std::_isnan(d); }
  #endif
  
  } // end namespace Catch
  // end catch_polyfills.cpp
  // start catch_random_number_generator.cpp
  
  namespace Catch
  {
  namespace
  {
  #if defined(_MSC_VER)
  #pragma warning(push)
  #pragma warning(disable : 4146) // we negate uint32 during the rotate
  #endif
  // Safe rotr implementation thanks to John Regehr
  uint32_t rotate_right(uint32_t val, uint32_t count)
  {
    const uint32_t mask = 31;
    count &= mask;
    return (val >> count) | (val << (-count & mask));
  }
  
  #if defined(_MSC_VER)
  #pragma warning(pop)
  #endif
  
  } // namespace
  
  SimplePcg32::SimplePcg32(result_type seed_) { seed(seed_); }
  
  void SimplePcg32::seed(result_type seed_)
  {
    m_state = 0;
    (*this)();
    m_state += seed_;
    (*this)();
  }
  
  void SimplePcg32::discard(uint64_t skip)
  {
    // We could implement this to run in O(log n) steps, but this
    // should suffice for our use case.
    for (uint64_t s = 0; s < skip; ++s)
    {
      static_cast<void>((*this)());
    }
  }
  
  SimplePcg32::result_type SimplePcg32::operator()()
  {
    // prepare the output value
    const uint32_t xorshifted =
        static_cast<uint32_t>(((m_state >> 18u) ^ m_state) >> 27u);
    const auto output = rotate_right(xorshifted, m_state >> 59u);
  
    // advance state
    m_state = m_state * 6364136223846793005ULL + s_inc;
  
    return output;
  }
  
  bool operator==(SimplePcg32 const &lhs, SimplePcg32 const &rhs)
  {
    return lhs.m_state == rhs.m_state;
  }
  
  bool operator!=(SimplePcg32 const &lhs, SimplePcg32 const &rhs)
  {
    return lhs.m_state != rhs.m_state;
  }
  } // namespace Catch
  // end catch_random_number_generator.cpp
  // start catch_registry_hub.cpp
  
  // start catch_test_case_registry_impl.h
  
  #include <algorithm>
  #include <ios>
  #include <set>
  #include <vector>
  
  namespace Catch
  {
  class TestCase;
  struct IConfig;
  
  std::vector<TestCase> sortTests(IConfig const &config,
                                  std::vector<TestCase> const &unsortedTestCases);
  
  bool isThrowSafe(TestCase const &testCase, IConfig const &config);
  bool matchTest(TestCase const &testCase, TestSpec const &testSpec,
                 IConfig const &config);
  
  void enforceNoDuplicateTestCases(std::vector<TestCase> const &functions);
  
  std::vector<TestCase> filterTests(std::vector<TestCase> const &testCases,
                                    TestSpec const &testSpec,
                                    IConfig const &config);
  std::vector<TestCase> const &getAllTestCasesSorted(IConfig const &config);
  
  class TestRegistry : public ITestCaseRegistry
  {
  public:
    virtual ~TestRegistry() = default;
  
    virtual void registerTest(TestCase const &testCase);
  
    std::vector<TestCase> const &getAllTests() const override;
    std::vector<TestCase> const &
    getAllTestsSorted(IConfig const &config) const override;
  
  private:
    std::vector<TestCase> m_functions;
    mutable RunTests::InWhatOrder m_currentSortOrder =
        RunTests::InDeclarationOrder;
    mutable std::vector<TestCase> m_sortedFunctions;
    std::size_t m_unnamedCount = 0;
    std::ios_base::Init m_ostreamInit; // Forces cout/ cerr to be initialised
  };
  
  ///////////////////////////////////////////////////////////////////////////
  
  class TestInvokerAsFunction : public ITestInvoker
  {
    void (*m_testAsFunction)();
  
  public:
    TestInvokerAsFunction(void (*testAsFunction)()) noexcept;
  
    void invoke() const override;
  };
  
  std::string extractClassName(StringRef const &classOrQualifiedMethodName);
  
  ///////////////////////////////////////////////////////////////////////////
  
  } // end namespace Catch
  
  // end catch_test_case_registry_impl.h
  // start catch_reporter_registry.h
  
  #include <map>
  
  namespace Catch
  {
  class ReporterRegistry : public IReporterRegistry
  {
  public:
    ~ReporterRegistry() override;
  
    IStreamingReporterPtr
    create(std::string const &name, IConfigPtr const &config) const override;
  
    void
    registerReporter(std::string const &name, IReporterFactoryPtr const &factory);
    void registerListener(IReporterFactoryPtr const &factory);
  
    FactoryMap const &getFactories() const override;
    Listeners const &getListeners() const override;
  
  private:
    FactoryMap m_factories;
    Listeners m_listeners;
  };
  } // namespace Catch
  
  // end catch_reporter_registry.h
  // start catch_tag_alias_registry.h
  
  // start catch_tag_alias.h
  
  #include <string>
  
  namespace Catch
  {
  struct TagAlias
  {
    TagAlias(std::string const &_tag, SourceLineInfo _lineInfo);
  
    std::string tag;
    SourceLineInfo lineInfo;
  };
  
  } // end namespace Catch
  
  // end catch_tag_alias.h
  #include <map>
  
  namespace Catch
  {
  class TagAliasRegistry : public ITagAliasRegistry
  {
  public:
    ~TagAliasRegistry() override;
    TagAlias const *find(std::string const &alias) const override;
    std::string
    expandAliases(std::string const &unexpandedTestSpec) const override;
    void add(std::string const &alias, std::string const &tag,
             SourceLineInfo const &lineInfo);
  
  private:
    std::map<std::string, TagAlias> m_registry;
  };
  
  } // end namespace Catch
  
  // end catch_tag_alias_registry.h
  // start catch_startup_exception_registry.h
  
  #include <exception>
  #include <vector>
  
  namespace Catch
  {
  class StartupExceptionRegistry
  {
  public:
    void add(std::exception_ptr const &exception) noexcept;
    std::vector<std::exception_ptr> const &getExceptions() const noexcept;
  
  private:
    std::vector<std::exception_ptr> m_exceptions;
  };
  
  } // end namespace Catch
  
  // end catch_startup_exception_registry.h
  // start catch_singletons.hpp
  
  namespace Catch
  {
  struct ISingleton
  {
    virtual ~ISingleton();
  };
  
  void addSingleton(ISingleton *singleton);
  void cleanupSingletons();
  
  template<typename SingletonImplT, typename InterfaceT = SingletonImplT,
           typename MutableInterfaceT = InterfaceT>
  class Singleton : SingletonImplT, public ISingleton
  {
    static auto getInternal() -> Singleton *
    {
      static Singleton *s_instance = nullptr;
      if (!s_instance)
      {
        s_instance = new Singleton;
        addSingleton(s_instance);
      }
      return s_instance;
    }
  
  public:
    static auto get() -> InterfaceT const & { return *getInternal(); }
    static auto getMutable() -> MutableInterfaceT & { return *getInternal(); }
  };
  
  } // namespace Catch
  
  // end catch_singletons.hpp
  namespace Catch
  {
  namespace
  {
  class RegistryHub : public IRegistryHub,
                      public IMutableRegistryHub,
                      private NonCopyable
  {
  public: // IRegistryHub
    RegistryHub() = default;
    IReporterRegistry const &getReporterRegistry() const override
    {
      return m_reporterRegistry;
    }
    ITestCaseRegistry const &getTestCaseRegistry() const override
    {
      return m_testCaseRegistry;
    }
    IExceptionTranslatorRegistry const &
    getExceptionTranslatorRegistry() const override
    {
      return m_exceptionTranslatorRegistry;
    }
    ITagAliasRegistry const &getTagAliasRegistry() const override
    {
      return m_tagAliasRegistry;
    }
    StartupExceptionRegistry const &getStartupExceptionRegistry() const override
    {
      return m_exceptionRegistry;
    }
  
  public: // IMutableRegistryHub
    void registerReporter(std::string const &name,
                          IReporterFactoryPtr const &factory) override
    {
      m_reporterRegistry.registerReporter(name, factory);
    }
    void registerListener(IReporterFactoryPtr const &factory) override
    {
      m_reporterRegistry.registerListener(factory);
    }
    void registerTest(TestCase const &testInfo) override
    {
      m_testCaseRegistry.registerTest(testInfo);
    }
    void registerTranslator(const IExceptionTranslator *translator) override
    {
      m_exceptionTranslatorRegistry.registerTranslator(translator);
    }
    void registerTagAlias(std::string const &alias, std::string const &tag,
                          SourceLineInfo const &lineInfo) override
    {
      m_tagAliasRegistry.add(alias, tag, lineInfo);
    }
    void registerStartupException() noexcept override
    {
      m_exceptionRegistry.add(std::current_exception());
    }
    IMutableEnumValuesRegistry &getMutableEnumValuesRegistry() override
    {
      return m_enumValuesRegistry;
    }
  
  private:
    TestRegistry m_testCaseRegistry;
    ReporterRegistry m_reporterRegistry;
    ExceptionTranslatorRegistry m_exceptionTranslatorRegistry;
    TagAliasRegistry m_tagAliasRegistry;
    StartupExceptionRegistry m_exceptionRegistry;
    Detail::EnumValuesRegistry m_enumValuesRegistry;
  };
  } // namespace
  
  using RegistryHubSingleton =
      Singleton<RegistryHub, IRegistryHub, IMutableRegistryHub>;
  
  IRegistryHub const &getRegistryHub() { return RegistryHubSingleton::get(); }
  IMutableRegistryHub &getMutableRegistryHub()
  {
    return RegistryHubSingleton::getMutable();
  }
  void cleanUp()
  {
    cleanupSingletons();
    cleanUpContext();
  }
  std::string translateActiveException()
  {
    return getRegistryHub()
        .getExceptionTranslatorRegistry()
        .translateActiveException();
  }
  
  } // end namespace Catch
  // end catch_registry_hub.cpp
  // start catch_reporter_registry.cpp
  
  namespace Catch
  {
  ReporterRegistry::~ReporterRegistry() = default;
  
  IStreamingReporterPtr ReporterRegistry::create(std::string const &name,
                                                 IConfigPtr const &config) const
  {
    auto it = m_factories.find(name);
    if (it == m_factories.end())
      return nullptr;
    return it->second->create(ReporterConfig(config));
  }
  
  void ReporterRegistry::registerReporter(std::string const &name,
                                          IReporterFactoryPtr const &factory)
  {
    m_factories.emplace(name, factory);
  }
  void ReporterRegistry::registerListener(IReporterFactoryPtr const &factory)
  {
    m_listeners.push_back(factory);
  }
  
  IReporterRegistry::FactoryMap const &ReporterRegistry::getFactories() const
  {
    return m_factories;
  }
  IReporterRegistry::Listeners const &ReporterRegistry::getListeners() const
  {
    return m_listeners;
  }
  
  } // namespace Catch
  // end catch_reporter_registry.cpp
  // start catch_result_type.cpp
  
  namespace Catch
  {
  bool isOk(ResultWas::OfType resultType)
  {
    return (resultType & ResultWas::FailureBit) == 0;
  }
  bool isJustInfo(int flags) { return flags == ResultWas::Info; }
  
  ResultDisposition::Flags
  operator|(ResultDisposition::Flags lhs, ResultDisposition::Flags rhs)
  {
    return static_cast<ResultDisposition::Flags>(static_cast<int>(lhs) |
                                                 static_cast<int>(rhs));
  }
  
  bool shouldContinueOnFailure(int flags)
  {
    return (flags & ResultDisposition::ContinueOnFailure) != 0;
  }
  bool shouldSuppressFailure(int flags)
  {
    return (flags & ResultDisposition::SuppressFail) != 0;
  }
  
  } // end namespace Catch
  // end catch_result_type.cpp
  // start catch_run_context.cpp
  
  #include <algorithm>
  #include <cassert>
  #include <sstream>
  
  namespace Catch
  {
  namespace Generators
  {
  struct GeneratorTracker : TestCaseTracking::TrackerBase, IGeneratorTracker
  {
    GeneratorBasePtr m_generator;
  
    GeneratorTracker(TestCaseTracking::NameAndLocation const &nameAndLocation,
                     TrackerContext &ctx, ITracker *parent)
        : TrackerBase(nameAndLocation, ctx, parent)
    {}
    ~GeneratorTracker();
  
    static GeneratorTracker &
    acquire(TrackerContext &ctx,
            TestCaseTracking::NameAndLocation const &nameAndLocation)
    {
      std::shared_ptr<GeneratorTracker> tracker;
  
      ITracker &currentTracker = ctx.currentTracker();
      if (TestCaseTracking::ITrackerPtr childTracker =
              currentTracker.findChild(nameAndLocation))
      {
        assert(childTracker);
        assert(childTracker->isGeneratorTracker());
        tracker = std::static_pointer_cast<GeneratorTracker>(childTracker);
      }
      else
      {
        tracker = std::make_shared<GeneratorTracker>(nameAndLocation, ctx,
                                                     &currentTracker);
        currentTracker.addChild(tracker);
      }
  
      if (!ctx.completedCycle() && !tracker->isComplete())
      {
        tracker->open();
      }
  
      return *tracker;
    }
  
    // TrackerBase interface
    bool isGeneratorTracker() const override { return true; }
    auto hasGenerator() const -> bool override { return !!m_generator; }
    void close() override
    {
      TrackerBase::close();
      // Generator interface only finds out if it has another item on atual move
      if (m_runState == CompletedSuccessfully && m_generator->next())
      {
        m_children.clear();
        m_runState = Executing;
      }
    }
  
    // IGeneratorTracker interface
    auto getGenerator() const -> GeneratorBasePtr const & override
    {
      return m_generator;
    }
    void setGenerator(GeneratorBasePtr &&generator) override
    {
      m_generator = std::move(generator);
    }
  };
  GeneratorTracker::~GeneratorTracker() {}
  } // namespace Generators
  
  RunContext::RunContext(IConfigPtr const &_config,
                         IStreamingReporterPtr &&reporter)
      : m_runInfo(_config->name()), m_context(getCurrentMutableContext()),
        m_config(_config), m_reporter(std::move(reporter)),
        m_lastAssertionInfo{StringRef(), SourceLineInfo("", 0), StringRef(),
                            ResultDisposition::Normal},
        m_includeSuccessfulResults(
            m_config->includeSuccessfulResults() ||
            m_reporter->getPreferences().shouldReportAllAssertions)
  {
    m_context.setRunner(this);
    m_context.setConfig(m_config);
    m_context.setResultCapture(this);
    m_reporter->testRunStarting(m_runInfo);
  }
  
  RunContext::~RunContext()
  {
    m_reporter->testRunEnded(TestRunStats(m_runInfo, m_totals, aborting()));
  }
  
  void RunContext::testGroupStarting(std::string const &testSpec,
                                     std::size_t groupIndex,
                                     std::size_t groupsCount)
  {
    m_reporter->testGroupStarting(GroupInfo(testSpec, groupIndex, groupsCount));
  }
  
  void RunContext::testGroupEnded(std::string const &testSpec,
                                  Totals const &totals, std::size_t groupIndex,
                                  std::size_t groupsCount)
  {
    m_reporter->testGroupEnded(TestGroupStats(
        GroupInfo(testSpec, groupIndex, groupsCount), totals, aborting()));
  }
  
  Totals RunContext::runTest(TestCase const &testCase)
  {
    Totals prevTotals = m_totals;
  
    std::string redirectedCout;
    std::string redirectedCerr;
  
    auto const &testInfo = testCase.getTestCaseInfo();
  
    m_reporter->testCaseStarting(testInfo);
  
    m_activeTestCase = &testCase;
  
    ITracker &rootTracker = m_trackerContext.startRun();
    assert(rootTracker.isSectionTracker());
    static_cast<SectionTracker &>(rootTracker)
        .addInitialFilters(m_config->getSectionsToRun());
    do
    {
      m_trackerContext.startCycle();
      m_testCaseTracker = &SectionTracker::acquire(
          m_trackerContext,
          TestCaseTracking::NameAndLocation(testInfo.name, testInfo.lineInfo));
      runCurrentTest(redirectedCout, redirectedCerr);
    } while (!m_testCaseTracker->isSuccessfullyCompleted() && !aborting());
  
    Totals deltaTotals = m_totals.delta(prevTotals);
    if (testInfo.expectedToFail() && deltaTotals.testCases.passed > 0)
    {
      deltaTotals.assertions.failed++;
      deltaTotals.testCases.passed--;
      deltaTotals.testCases.failed++;
    }
    m_totals.testCases += deltaTotals.testCases;
    m_reporter->testCaseEnded(TestCaseStats(testInfo, deltaTotals, redirectedCout,
                                            redirectedCerr, aborting()));
  
    m_activeTestCase  = nullptr;
    m_testCaseTracker = nullptr;
  
    return deltaTotals;
  }
  
  IConfigPtr RunContext::config() const { return m_config; }
  
  IStreamingReporter &RunContext::reporter() const { return *m_reporter; }
  
  void RunContext::assertionEnded(AssertionResult const &result)
  {
    if (result.getResultType() == ResultWas::Ok)
    {
      m_totals.assertions.passed++;
      m_lastAssertionPassed = true;
    }
    else if (!result.isOk())
    {
      m_lastAssertionPassed = false;
      if (m_activeTestCase->getTestCaseInfo().okToFail())
        m_totals.assertions.failedButOk++;
      else
        m_totals.assertions.failed++;
    }
    else
    {
      m_lastAssertionPassed = true;
    }
  
    // We have no use for the return value (whether messages should be cleared),
    // because messages were made scoped and should be let to clear themselves
    // out.
    static_cast<void>(
        m_reporter->assertionEnded(AssertionStats(result, m_messages, m_totals)));
  
    if (result.getResultType() != ResultWas::Warning)
      m_messageScopes.clear();
  
    // Reset working state
    resetAssertionInfo();
    m_lastResult = result;
  }
  void RunContext::resetAssertionInfo()
  {
    m_lastAssertionInfo.macroName = StringRef();
    m_lastAssertionInfo.capturedExpression =
        "{Unknown expression after the reported line}"_sr;
  }
  
  bool RunContext::sectionStarted(SectionInfo const &sectionInfo,
                                  Counts &assertions)
  {
    ITracker &sectionTracker = SectionTracker::acquire(
        m_trackerContext, TestCaseTracking::NameAndLocation(
                              sectionInfo.name, sectionInfo.lineInfo));
    if (!sectionTracker.isOpen())
      return false;
    m_activeSections.push_back(&sectionTracker);
  
    m_lastAssertionInfo.lineInfo = sectionInfo.lineInfo;
  
    m_reporter->sectionStarting(sectionInfo);
  
    assertions = m_totals.assertions;
  
    return true;
  }
  auto RunContext::acquireGeneratorTracker(SourceLineInfo const &lineInfo)
      -> IGeneratorTracker &
  {
    using namespace Generators;
    GeneratorTracker &tracker = GeneratorTracker::acquire(
        m_trackerContext,
        TestCaseTracking::NameAndLocation("generator", lineInfo));
    assert(tracker.isOpen());
    m_lastAssertionInfo.lineInfo = lineInfo;
    return tracker;
  }
  
  bool RunContext::testForMissingAssertions(Counts &assertions)
  {
    if (assertions.total() != 0)
      return false;
    if (!m_config->warnAboutMissingAssertions())
      return false;
    if (m_trackerContext.currentTracker().hasChildren())
      return false;
    m_totals.assertions.failed++;
    assertions.failed++;
    return true;
  }
  
  void RunContext::sectionEnded(SectionEndInfo const &endInfo)
  {
    Counts assertions      = m_totals.assertions - endInfo.prevAssertions;
    bool missingAssertions = testForMissingAssertions(assertions);
  
    if (!m_activeSections.empty())
    {
      m_activeSections.back()->close();
      m_activeSections.pop_back();
    }
  
    m_reporter->sectionEnded(SectionStats(endInfo.sectionInfo, assertions,
                                          endInfo.durationInSeconds,
                                          missingAssertions));
    m_messages.clear();
    m_messageScopes.clear();
  }
  
  void RunContext::sectionEndedEarly(SectionEndInfo const &endInfo)
  {
    if (m_unfinishedSections.empty())
      m_activeSections.back()->fail();
    else
      m_activeSections.back()->close();
    m_activeSections.pop_back();
  
    m_unfinishedSections.push_back(endInfo);
  }
  
  #if defined(CATCH_CONFIG_ENABLE_BENCHMARKING)
  void RunContext::benchmarkPreparing(std::string const &name)
  {
    m_reporter->benchmarkPreparing(name);
  }
  void RunContext::benchmarkStarting(BenchmarkInfo const &info)
  {
    m_reporter->benchmarkStarting(info);
  }
  void RunContext::benchmarkEnded(BenchmarkStats<> const &stats)
  {
    m_reporter->benchmarkEnded(stats);
  }
  void RunContext::benchmarkFailed(std::string const &error)
  {
    m_reporter->benchmarkFailed(error);
  }
  #endif // CATCH_CONFIG_ENABLE_BENCHMARKING
  
  void RunContext::pushScopedMessage(MessageInfo const &message)
  {
    m_messages.push_back(message);
  }
  
  void RunContext::popScopedMessage(MessageInfo const &message)
  {
    m_messages.erase(std::remove(m_messages.begin(), m_messages.end(), message),
                     m_messages.end());
  }
  
  void RunContext::emplaceUnscopedMessage(MessageBuilder const &builder)
  {
    m_messageScopes.emplace_back(builder);
  }
  
  std::string RunContext::getCurrentTestName() const
  {
    return m_activeTestCase ? m_activeTestCase->getTestCaseInfo().name
                            : std::string();
  }
  
  const AssertionResult *RunContext::getLastResult() const
  {
    return &(*m_lastResult);
  }
  
  void RunContext::exceptionEarlyReported() { m_shouldReportUnexpected = false; }
  
  void RunContext::handleFatalErrorCondition(StringRef message)
  {
    // First notify reporter that bad things happened
    m_reporter->fatalErrorEncountered(message);
  
    // Don't rebuild the result -- the stringification itself can cause more fatal
    // errors Instead, fake a result data.
    AssertionResultData tempResult(ResultWas::FatalErrorCondition, {false});
    tempResult.message = static_cast<std::string>(message);
    AssertionResult result(m_lastAssertionInfo, tempResult);
  
    assertionEnded(result);
  
    handleUnfinishedSections();
  
    // Recreate section for test case (as we will lose the one that was in scope)
    auto const &testCaseInfo = m_activeTestCase->getTestCaseInfo();
    SectionInfo testCaseSection(testCaseInfo.lineInfo, testCaseInfo.name);
  
    Counts assertions;
    assertions.failed = 1;
    SectionStats testCaseSectionStats(testCaseSection, assertions, 0, false);
    m_reporter->sectionEnded(testCaseSectionStats);
  
    auto const &testInfo = m_activeTestCase->getTestCaseInfo();
  
    Totals deltaTotals;
    deltaTotals.testCases.failed  = 1;
    deltaTotals.assertions.failed = 1;
    m_reporter->testCaseEnded(TestCaseStats(testInfo, deltaTotals, std::string(),
                                            std::string(), false));
    m_totals.testCases.failed++;
    testGroupEnded(std::string(), m_totals, 1, 1);
    m_reporter->testRunEnded(TestRunStats(m_runInfo, m_totals, false));
  }
  
  bool RunContext::lastAssertionPassed() { return m_lastAssertionPassed; }
  
  void RunContext::assertionPassed()
  {
    m_lastAssertionPassed = true;
    ++m_totals.assertions.passed;
    resetAssertionInfo();
    m_messageScopes.clear();
  }
  
  bool RunContext::aborting() const
  {
    return m_totals.assertions.failed >=
           static_cast<std::size_t>(m_config->abortAfter());
  }
  
  void RunContext::runCurrentTest(std::string &redirectedCout,
                                  std::string &redirectedCerr)
  {
    auto const &testCaseInfo = m_activeTestCase->getTestCaseInfo();
    SectionInfo testCaseSection(testCaseInfo.lineInfo, testCaseInfo.name);
    m_reporter->sectionStarting(testCaseSection);
    Counts prevAssertions    = m_totals.assertions;
    double duration          = 0;
    m_shouldReportUnexpected = true;
    m_lastAssertionInfo = {"TEST_CASE"_sr, testCaseInfo.lineInfo, StringRef(),
                           ResultDisposition::Normal};
  
    seedRng(*m_config);
  
    Timer timer;
    CATCH_TRY
    {
      if (m_reporter->getPreferences().shouldRedirectStdOut)
      {
  #if !defined(CATCH_CONFIG_EXPERIMENTAL_REDIRECT)
        RedirectedStreams redirectedStreams(redirectedCout, redirectedCerr);
  
        timer.start();
        invokeActiveTestCase();
  #else
        OutputRedirect r(redirectedCout, redirectedCerr);
        timer.start();
        invokeActiveTestCase();
  #endif
      }
      else
      {
        timer.start();
        invokeActiveTestCase();
      }
      duration = timer.getElapsedSeconds();
    }
    CATCH_CATCH_ANON(TestFailureException &)
    {
      // This just means the test was aborted due to failure
    }
    CATCH_CATCH_ALL
    {
      // Under CATCH_CONFIG_FAST_COMPILE, unexpected exceptions under REQUIRE
      // assertions are reported without translation at the point of origin.
      if (m_shouldReportUnexpected)
      {
        AssertionReaction dummyReaction;
        handleUnexpectedInflightException(
            m_lastAssertionInfo, translateActiveException(), dummyReaction);
      }
    }
    Counts assertions      = m_totals.assertions - prevAssertions;
    bool missingAssertions = testForMissingAssertions(assertions);
  
    m_testCaseTracker->close();
    handleUnfinishedSections();
    m_messages.clear();
    m_messageScopes.clear();
  
    SectionStats testCaseSectionStats(testCaseSection, assertions, duration,
                                      missingAssertions);
    m_reporter->sectionEnded(testCaseSectionStats);
  }
  
  void RunContext::invokeActiveTestCase()
  {
    FatalConditionHandler fatalConditionHandler; // Handle signals
    m_activeTestCase->invoke();
    fatalConditionHandler.reset();
  }
  
  void RunContext::handleUnfinishedSections()
  {
    // If sections ended prematurely due to an exception we stored their
    // infos here so we can tear them down outside the unwind process.
    for (auto it    = m_unfinishedSections.rbegin(),
              itEnd = m_unfinishedSections.rend();
         it != itEnd; ++it)
      sectionEnded(*it);
    m_unfinishedSections.clear();
  }
  
  void RunContext::handleExpr(AssertionInfo const &info,
                              ITransientExpression const &expr,
                              AssertionReaction &reaction)
  {
    m_reporter->assertionStarting(info);
  
    bool negated = isFalseTest(info.resultDisposition);
    bool result  = expr.getResult() != negated;
  
    if (result)
    {
      if (!m_includeSuccessfulResults)
      {
        assertionPassed();
      }
      else
      {
        reportExpr(info, ResultWas::Ok, &expr, negated);
      }
    }
    else
    {
      reportExpr(info, ResultWas::ExpressionFailed, &expr, negated);
      populateReaction(reaction);
    }
  }
  void RunContext::reportExpr(AssertionInfo const &info,
                              ResultWas::OfType resultType,
                              ITransientExpression const *expr, bool negated)
  {
    m_lastAssertionInfo = info;
    AssertionResultData data(resultType, LazyExpression(negated));
  
    AssertionResult assertionResult{info, data};
    assertionResult.m_resultData.lazyExpression.m_transientExpression = expr;
  
    assertionEnded(assertionResult);
  }
  
  void RunContext::handleMessage(AssertionInfo const &info,
                                 ResultWas::OfType resultType,
                                 StringRef const &message,
                                 AssertionReaction &reaction)
  {
    m_reporter->assertionStarting(info);
  
    m_lastAssertionInfo = info;
  
    AssertionResultData data(resultType, LazyExpression(false));
    data.message = static_cast<std::string>(message);
    AssertionResult assertionResult{m_lastAssertionInfo, data};
    assertionEnded(assertionResult);
    if (!assertionResult.isOk())
      populateReaction(reaction);
  }
  void RunContext::handleUnexpectedExceptionNotThrown(AssertionInfo const &info,
                                                      AssertionReaction &reaction)
  {
    handleNonExpr(info, Catch::ResultWas::DidntThrowException, reaction);
  }
  
  void RunContext::handleUnexpectedInflightException(AssertionInfo const &info,
                                                     std::string const &message,
                                                     AssertionReaction &reaction)
  {
    m_lastAssertionInfo = info;
  
    AssertionResultData data(ResultWas::ThrewException, LazyExpression(false));
    data.message = message;
    AssertionResult assertionResult{info, data};
    assertionEnded(assertionResult);
    populateReaction(reaction);
  }
  
  void RunContext::populateReaction(AssertionReaction &reaction)
  {
    reaction.shouldDebugBreak = m_config->shouldDebugBreak();
    reaction.shouldThrow = aborting() || (m_lastAssertionInfo.resultDisposition &
                                          ResultDisposition::Normal);
  }
  
  void RunContext::handleIncomplete(AssertionInfo const &info)
  {
    m_lastAssertionInfo = info;
  
    AssertionResultData data(ResultWas::ThrewException, LazyExpression(false));
    data.message =
        "Exception translation was disabled by CATCH_CONFIG_FAST_COMPILE";
    AssertionResult assertionResult{info, data};
    assertionEnded(assertionResult);
  }
  void RunContext::handleNonExpr(AssertionInfo const &info,
                                 ResultWas::OfType resultType,
                                 AssertionReaction &reaction)
  {
    m_lastAssertionInfo = info;
  
    AssertionResultData data(resultType, LazyExpression(false));
    AssertionResult assertionResult{info, data};
    assertionEnded(assertionResult);
  
    if (!assertionResult.isOk())
      populateReaction(reaction);
  }
  
  IResultCapture &getResultCapture()
  {
    if (auto *capture = getCurrentContext().getResultCapture())
      return *capture;
    else
      CATCH_INTERNAL_ERROR("No result capture instance");
  }
  
  void seedRng(IConfig const &config)
  {
    if (config.rngSeed() != 0)
    {
      std::srand(config.rngSeed());
      rng().seed(config.rngSeed());
    }
  }
  
  unsigned int rngSeed() { return getCurrentContext().getConfig()->rngSeed(); }
  
  } // namespace Catch
  // end catch_run_context.cpp
  // start catch_section.cpp
  
  namespace Catch
  {
  Section::Section(SectionInfo const &info)
      : m_info(info),
        m_sectionIncluded(getResultCapture().sectionStarted(m_info, m_assertions))
  {
    m_timer.start();
  }
  
  Section::~Section()
  {
    if (m_sectionIncluded)
    {
      SectionEndInfo endInfo{m_info, m_assertions, m_timer.getElapsedSeconds()};
      if (uncaught_exceptions())
        getResultCapture().sectionEndedEarly(endInfo);
      else
        getResultCapture().sectionEnded(endInfo);
    }
  }
  
  // This indicates whether the section should be executed or not
  Section::operator bool() const { return m_sectionIncluded; }
  
  } // end namespace Catch
  // end catch_section.cpp
  // start catch_section_info.cpp
  
  namespace Catch
  {
  SectionInfo::SectionInfo(SourceLineInfo const &_lineInfo,
                           std::string const &_name)
      : name(_name), lineInfo(_lineInfo)
  {}
  
  } // end namespace Catch
  // end catch_section_info.cpp
  // start catch_session.cpp
  
  // start catch_session.h
  
  #include <memory>
  
  namespace Catch
  {
  class Session : NonCopyable
  {
  public:
    Session();
    ~Session() override;
  
    void showHelp() const;
    void libIdentify();
  
    int applyCommandLine(int argc, char const *const *argv);
  #if defined(CATCH_CONFIG_WCHAR) && defined(_WIN32) && defined(UNICODE)
    int applyCommandLine(int argc, wchar_t const *const *argv);
  #endif
  
    void useConfigData(ConfigData const &configData);
  
    template<typename CharT>
    int run(int argc, CharT const *const argv[])
    {
      if (m_startupExceptions)
        return 1;
      int returnCode = applyCommandLine(argc, argv);
      if (returnCode == 0)
        returnCode = run();
      return returnCode;
    }
  
    int run();
  
    clara::Parser const &cli() const;
    void cli(clara::Parser const &newParser);
    ConfigData &configData();
    Config &config();
  
  private:
    int runInternal();
  
    clara::Parser m_cli;
    ConfigData m_configData;
    std::shared_ptr<Config> m_config;
    bool m_startupExceptions = false;
  };
  
  } // end namespace Catch
  
  // end catch_session.h
  // start catch_version.h
  
  #include <iosfwd>
  
  namespace Catch
  {
  // Versioning information
  struct Version
  {
    Version(Version const &) = delete;
    Version &operator=(Version const &) = delete;
    Version(unsigned int _majorVersion, unsigned int _minorVersion,
            unsigned int _patchNumber, char const *const _branchName,
            unsigned int _buildNumber);
  
    unsigned int const majorVersion;
    unsigned int const minorVersion;
    unsigned int const patchNumber;
  
    // buildNumber is only used if branchName is not null
    char const *const branchName;
    unsigned int const buildNumber;
  
    friend std::ostream &operator<<(std::ostream &os, Version const &version);
  };
  
  Version const &libraryVersion();
  } // namespace Catch
  
  // end catch_version.h
  #include <cstdlib>
  #include <iomanip>
  #include <iterator>
  #include <set>
  
  namespace Catch
  {
  namespace
  {
  const int MaxExitCode = 255;
  
  IStreamingReporterPtr
  createReporter(std::string const &reporterName, IConfigPtr const &config)
  {
    auto reporter = Catch::getRegistryHub().getReporterRegistry().create(
        reporterName, config);
    CATCH_ENFORCE(reporter,
                  "No reporter registered with name: '" << reporterName << "'");
  
    return reporter;
  }
  
  IStreamingReporterPtr makeReporter(std::shared_ptr<Config> const &config)
  {
    if (Catch::getRegistryHub().getReporterRegistry().getListeners().empty())
    {
      return createReporter(config->getReporterName(), config);
    }
  
    // On older platforms, returning std::unique_ptr<ListeningReporter>
    // when the return type is std::unique_ptr<IStreamingReporter>
    // doesn't compile without a std::move call. However, this causes
    // a warning on newer platforms. Thus, we have to work around
    // it a bit and downcast the pointer manually.
    auto ret    = std::unique_ptr<IStreamingReporter>(new ListeningReporter);
    auto &multi = static_cast<ListeningReporter &>(*ret);
    auto const &listeners =
        Catch::getRegistryHub().getReporterRegistry().getListeners();
    for (auto const &listener : listeners)
    {
      multi.addListener(listener->create(Catch::ReporterConfig(config)));
    }
    multi.addReporter(createReporter(config->getReporterName(), config));
    return ret;
  }
  
  class TestGroup
  {
  public:
    explicit TestGroup(std::shared_ptr<Config> const &config)
        : m_config{config}, m_context{config, makeReporter(config)}
    {
      auto const &allTestCases = getAllTestCasesSorted(*m_config);
      m_matches = m_config->testSpec().matchesByFilter(allTestCases, *m_config);
      auto const &invalidArgs = m_config->testSpec().getInvalidArgs();
  
      if (m_matches.empty() && invalidArgs.empty())
      {
        for (auto const &test : allTestCases)
          if (!test.isHidden())
            m_tests.emplace(&test);
      }
      else
      {
        for (auto const &match : m_matches)
          m_tests.insert(match.tests.begin(), match.tests.end());
      }
    }
  
    Totals execute()
    {
      auto const &invalidArgs = m_config->testSpec().getInvalidArgs();
      Totals totals;
      m_context.testGroupStarting(m_config->name(), 1, 1);
      for (auto const &testCase : m_tests)
      {
        if (!m_context.aborting())
          totals += m_context.runTest(*testCase);
        else
          m_context.reporter().skipTest(*testCase);
      }
  
      for (auto const &match : m_matches)
      {
        if (match.tests.empty())
        {
          m_context.reporter().noMatchingTestCases(match.name);
          totals.error = -1;
        }
      }
  
      if (!invalidArgs.empty())
      {
        for (auto const &invalidArg : invalidArgs)
          m_context.reporter().reportInvalidArguments(invalidArg);
      }
  
      m_context.testGroupEnded(m_config->name(), totals, 1, 1);
      return totals;
    }
  
  private:
    using Tests = std::set<TestCase const *>;
  
    std::shared_ptr<Config> m_config;
    RunContext m_context;
    Tests m_tests;
    TestSpec::Matches m_matches;
  };
  
  void applyFilenamesAsTags(Catch::IConfig const &config)
  {
    auto &tests =
        const_cast<std::vector<TestCase> &>(getAllTestCasesSorted(config));
    for (auto &testCase : tests)
    {
      auto tags = testCase.tags;
  
      std::string filename = testCase.lineInfo.file;
      auto lastSlash       = filename.find_last_of("\\/");
      if (lastSlash != std::string::npos)
      {
        filename.erase(0, lastSlash);
        filename[0] = '#';
      }
  
      auto lastDot = filename.find_last_of('.');
      if (lastDot != std::string::npos)
      {
        filename.erase(lastDot);
      }
  
      tags.push_back(std::move(filename));
      setTags(testCase, tags);
    }
  }
  
  } // namespace
  
  Session::Session()
  {
    static bool alreadyInstantiated = false;
    if (alreadyInstantiated)
    {
      CATCH_TRY
      {
        CATCH_INTERNAL_ERROR(
            "Only one instance of Catch::Session can ever be used");
      }
      CATCH_CATCH_ALL { getMutableRegistryHub().registerStartupException(); }
    }
  
    // There cannot be exceptions at startup in no-exception mode.
  #if !defined(CATCH_CONFIG_DISABLE_EXCEPTIONS)
    const auto &exceptions =
        getRegistryHub().getStartupExceptionRegistry().getExceptions();
    if (!exceptions.empty())
    {
      config();
      getCurrentMutableContext().setConfig(m_config);
  
      m_startupExceptions = true;
      Colour colourGuard(Colour::Red);
      Catch::cerr() << "Errors occurred during startup!" << '\n';
      // iterate over all exceptions and notify user
      for (const auto &ex_ptr : exceptions)
      {
        try
        {
          std::rethrow_exception(ex_ptr);
        }
        catch (std::exception const &ex)
        {
          Catch::cerr() << Column(ex.what()).indent(2) << '\n';
        }
      }
    }
  #endif
  
    alreadyInstantiated = true;
    m_cli               = makeCommandLineParser(m_configData);
  }
  Session::~Session() { Catch::cleanUp(); }
  
  void Session::showHelp() const
  {
    Catch::cout() << "\nCatch v" << libraryVersion() << "\n"
                  << m_cli << std::endl
                  << "For more detailed usage please see the project docs\n"
                  << std::endl;
  }
  void Session::libIdentify()
  {
    Catch::cout() << std::left << std::setw(16) << "description: "
                  << "A Catch2 test executable\n"
                  << std::left << std::setw(16) << "category: "
                  << "testframework\n"
                  << std::left << std::setw(16) << "framework: "
                  << "Catch Test\n"
                  << std::left << std::setw(16) << "version: " << libraryVersion()
                  << std::endl;
  }
  
  int Session::applyCommandLine(int argc, char const *const *argv)
  {
    if (m_startupExceptions)
      return 1;
  
    auto result = m_cli.parse(clara::Args(argc, argv));
    if (!result)
    {
      config();
      getCurrentMutableContext().setConfig(m_config);
      Catch::cerr() << Colour(Colour::Red) << "\nError(s) in input:\n"
                    << Column(result.errorMessage()).indent(2) << "\n\n";
      Catch::cerr() << "Run with -? for usage\n" << std::endl;
      return MaxExitCode;
    }
  
    if (m_configData.showHelp)
      showHelp();
    if (m_configData.libIdentify)
      libIdentify();
    m_config.reset();
    return 0;
  }
  
  #if defined(CATCH_CONFIG_WCHAR) && defined(_WIN32) && defined(UNICODE)
  int Session::applyCommandLine(int argc, wchar_t const *const *argv)
  {
    char **utf8Argv = new char *[argc];
  
    for (int i = 0; i < argc; ++i)
    {
      int bufSize = WideCharToMultiByte(CP_UTF8, 0, argv[i], -1, nullptr, 0,
                                        nullptr, nullptr);
  
      utf8Argv[i] = new char[bufSize];
  
      WideCharToMultiByte(CP_UTF8, 0, argv[i], -1, utf8Argv[i], bufSize, nullptr,
                          nullptr);
    }
  
    int returnCode = applyCommandLine(argc, utf8Argv);
  
    for (int i = 0; i < argc; ++i)
      delete[] utf8Argv[i];
  
    delete[] utf8Argv;
  
    return returnCode;
  }
  #endif
  
  void Session::useConfigData(ConfigData const &configData)
  {
    m_configData = configData;
    m_config.reset();
  }
  
  int Session::run()
  {
    if ((m_configData.waitForKeypress & WaitForKeypress::BeforeStart) != 0)
    {
      Catch::cout() << "...waiting for enter/ return before starting"
                    << std::endl;
      static_cast<void>(std::getchar());
    }
    int exitCode = runInternal();
    if ((m_configData.waitForKeypress & WaitForKeypress::BeforeExit) != 0)
    {
      Catch::cout() << "...waiting for enter/ return before exiting, with code: "
                    << exitCode << std::endl;
      static_cast<void>(std::getchar());
    }
    return exitCode;
  }
  
  clara::Parser const &Session::cli() const { return m_cli; }
  void Session::cli(clara::Parser const &newParser) { m_cli = newParser; }
  ConfigData &Session::configData() { return m_configData; }
  Config &Session::config()
  {
    if (!m_config)
      m_config = std::make_shared<Config>(m_configData);
    return *m_config;
  }
  
  int Session::runInternal()
  {
    if (m_startupExceptions)
      return 1;
  
    if (m_configData.showHelp || m_configData.libIdentify)
    {
      return 0;
    }
  
    CATCH_TRY
    {
      config(); // Force config to be constructed
  
      seedRng(*m_config);
  
      if (m_configData.filenamesAsTags)
        applyFilenamesAsTags(*m_config);
  
      // Handle list request
      if (Option<std::size_t> listed = list(m_config))
        return static_cast<int>(*listed);
  
      TestGroup tests{m_config};
      auto const totals = tests.execute();
  
      if (m_config->warnAboutNoTests() && totals.error == -1)
        return 2;
  
      // Note that on unices only the lower 8 bits are usually used, clamping
      // the return value to 255 prevents false negative when some multiple
      // of 256 tests has failed
      return (std::min)(
          MaxExitCode,
          (std::max)(totals.error, static_cast<int>(totals.assertions.failed)));
    }
  #if !defined(CATCH_CONFIG_DISABLE_EXCEPTIONS)
    catch (std::exception &ex)
    {
      Catch::cerr() << ex.what() << std::endl;
      return MaxExitCode;
    }
  #endif
  }
  
  } // end namespace Catch
  // end catch_session.cpp
  // start catch_singletons.cpp
  
  #include <vector>
  
  namespace Catch
  {
  namespace
  {
  static auto getSingletons() -> std::vector<ISingleton *> *&
  {
    static std::vector<ISingleton *> *g_singletons = nullptr;
    if (!g_singletons)
      g_singletons = new std::vector<ISingleton *>();
    return g_singletons;
  }
  } // namespace
  
  ISingleton::~ISingleton() {}
  
  void addSingleton(ISingleton *singleton)
  {
    getSingletons()->push_back(singleton);
  }
  void cleanupSingletons()
  {
    auto &singletons = getSingletons();
    for (auto singleton : *singletons)
      delete singleton;
    delete singletons;
    singletons = nullptr;
  }
  
  } // namespace Catch
  // end catch_singletons.cpp
  // start catch_startup_exception_registry.cpp
  
  namespace Catch
  {
  void StartupExceptionRegistry::add(std::exception_ptr const &exception) noexcept
  {
    CATCH_TRY { m_exceptions.push_back(exception); }
    CATCH_CATCH_ALL
    {
      // If we run out of memory during start-up there's really not a lot more we
      // can do about it
      std::terminate();
    }
  }
  
  std::vector<std::exception_ptr> const &
  StartupExceptionRegistry::getExceptions() const noexcept
  {
    return m_exceptions;
  }
  
  } // end namespace Catch
  // end catch_startup_exception_registry.cpp
  // start catch_stream.cpp
  
  #include <cstdio>
  #include <fstream>
  #include <iostream>
  #include <memory>
  #include <sstream>
  #include <vector>
  
  namespace Catch
  {
  Catch::IStream::~IStream() = default;
  
  namespace Detail
  {
  namespace
  {
  template<typename WriterF, std::size_t bufferSize = 256>
  class StreamBufImpl : public std::streambuf
  {
    char data[bufferSize];
    WriterF m_writer;
  
  public:
    StreamBufImpl() { setp(data, data + sizeof(data)); }
  
    ~StreamBufImpl() noexcept { StreamBufImpl::sync(); }
  
  private:
    int overflow(int c) override
    {
      sync();
  
      if (c != EOF)
      {
        if (pbase() == epptr())
          m_writer(std::string(1, static_cast<char>(c)));
        else
          sputc(static_cast<char>(c));
      }
      return 0;
    }
  
    int sync() override
    {
      if (pbase() != pptr())
      {
        m_writer(std::string(
            pbase(), static_cast<std::string::size_type>(pptr() - pbase())));
        setp(pbase(), epptr());
      }
      return 0;
    }
  };
  
  ///////////////////////////////////////////////////////////////////////////
  
  struct OutputDebugWriter
  {
    void operator()(std::string const &str) { writeToDebugConsole(str); }
  };
  
  ///////////////////////////////////////////////////////////////////////////
  
  class FileStream : public IStream
  {
    mutable std::ofstream m_ofs;
  
  public:
    FileStream(StringRef filename)
    {
      m_ofs.open(filename.c_str());
      CATCH_ENFORCE(!m_ofs.fail(), "Unable to open file: '" << filename << "'");
    }
    ~FileStream() override = default;
  
  public: // IStream
    std::ostream &stream() const override { return m_ofs; }
  };
  
  ///////////////////////////////////////////////////////////////////////////
  
  class CoutStream : public IStream
  {
    mutable std::ostream m_os;
  
  public:
    // Store the streambuf from cout up-front because
    // cout may get redirected when running tests
    CoutStream() : m_os(Catch::cout().rdbuf()) {}
    ~CoutStream() override = default;
  
  public: // IStream
    std::ostream &stream() const override { return m_os; }
  };
  
  ///////////////////////////////////////////////////////////////////////////
  
  class DebugOutStream : public IStream
  {
    std::unique_ptr<StreamBufImpl<OutputDebugWriter>> m_streamBuf;
    mutable std::ostream m_os;
  
  public:
    DebugOutStream()
        : m_streamBuf(new StreamBufImpl<OutputDebugWriter>()),
          m_os(m_streamBuf.get())
    {}
  
    ~DebugOutStream() override = default;
  
  public: // IStream
    std::ostream &stream() const override { return m_os; }
  };
  
  } // namespace
  } // namespace Detail
  
  ///////////////////////////////////////////////////////////////////////////
  
  auto makeStream(StringRef const &filename) -> IStream const *
  {
    if (filename.empty())
      return new Detail::CoutStream();
    else if (filename[0] == '%')
    {
      if (filename == "%debug")
        return new Detail::DebugOutStream();
      else
        CATCH_ERROR("Unrecognised stream: '" << filename << "'");
    }
    else
      return new Detail::FileStream(filename);
  }
  
  // This class encapsulates the idea of a pool of ostringstreams that can be
  // reused.
  struct StringStreams
  {
    std::vector<std::unique_ptr<std::ostringstream>> m_streams;
    std::vector<std::size_t> m_unused;
    std::ostringstream m_referenceStream; // Used for copy state/ flags from
  
    auto add() -> std::size_t
    {
      if (m_unused.empty())
      {
        m_streams.push_back(
            std::unique_ptr<std::ostringstream>(new std::ostringstream));
        return m_streams.size() - 1;
      }
      else
      {
        auto index = m_unused.back();
        m_unused.pop_back();
        return index;
      }
    }
  
    void release(std::size_t index)
    {
      m_streams[index]->copyfmt(
          m_referenceStream); // Restore initial flags and other state
      m_unused.push_back(index);
    }
  };
  
  ReusableStringStream::ReusableStringStream()
      : m_index(Singleton<StringStreams>::getMutable().add()),
        m_oss(Singleton<StringStreams>::getMutable().m_streams[m_index].get())
  {}
  
  ReusableStringStream::~ReusableStringStream()
  {
    static_cast<std::ostringstream *>(m_oss)->str("");
    m_oss->clear();
    Singleton<StringStreams>::getMutable().release(m_index);
  }
  
  auto ReusableStringStream::str() const -> std::string
  {
    return static_cast<std::ostringstream *>(m_oss)->str();
  }
  
  ///////////////////////////////////////////////////////////////////////////
  
  #ifndef CATCH_CONFIG_NOSTDOUT // If you #define this you must implement these
                                // functions
  std::ostream &cout() { return std::cout; }
  std::ostream &cerr() { return std::cerr; }
  std::ostream &clog() { return std::clog; }
  #endif
  } // namespace Catch
  // end catch_stream.cpp
  // start catch_string_manip.cpp
  
  #include <algorithm>
  #include <cctype>
  #include <cstring>
  #include <ostream>
  #include <vector>
  
  namespace Catch
  {
  namespace
  {
  char toLowerCh(char c) { return static_cast<char>(std::tolower(c)); }
  } // namespace
  
  bool startsWith(std::string const &s, std::string const &prefix)
  {
    return s.size() >= prefix.size() &&
           std::equal(prefix.begin(), prefix.end(), s.begin());
  }
  bool startsWith(std::string const &s, char prefix)
  {
    return !s.empty() && s[0] == prefix;
  }
  bool endsWith(std::string const &s, std::string const &suffix)
  {
    return s.size() >= suffix.size() &&
           std::equal(suffix.rbegin(), suffix.rend(), s.rbegin());
  }
  bool endsWith(std::string const &s, char suffix)
  {
    return !s.empty() && s[s.size() - 1] == suffix;
  }
  bool contains(std::string const &s, std::string const &infix)
  {
    return s.find(infix) != std::string::npos;
  }
  void toLowerInPlace(std::string &s)
  {
    std::transform(s.begin(), s.end(), s.begin(), toLowerCh);
  }
  std::string toLower(std::string const &s)
  {
    std::string lc = s;
    toLowerInPlace(lc);
    return lc;
  }
  std::string trim(std::string const &str)
  {
    static char const *whitespaceChars = "\n\r\t ";
    std::string::size_type start       = str.find_first_not_of(whitespaceChars);
    std::string::size_type end         = str.find_last_not_of(whitespaceChars);
  
    return start != std::string::npos ? str.substr(start, 1 + end - start)
                                      : std::string();
  }
  
  StringRef trim(StringRef ref)
  {
    const auto is_ws = [](char c) {
      return c == ' ' || c == '\t' || c == '\n' || c == '\r';
    };
    size_t real_begin = 0;
    while (real_begin < ref.size() && is_ws(ref[real_begin]))
    {
      ++real_begin;
    }
    size_t real_end = ref.size();
    while (real_end > real_begin && is_ws(ref[real_end - 1]))
    {
      --real_end;
    }
  
    return ref.substr(real_begin, real_end - real_begin);
  }
  
  bool replaceInPlace(std::string &str, std::string const &replaceThis,
                      std::string const &withThis)
  {
    bool replaced = false;
    std::size_t i = str.find(replaceThis);
    while (i != std::string::npos)
    {
      replaced = true;
      str      = str.substr(0, i) + withThis + str.substr(i + replaceThis.size());
      if (i < str.size() - withThis.size())
        i = str.find(replaceThis, i + withThis.size());
      else
        i = std::string::npos;
    }
    return replaced;
  }
  
  std::vector<StringRef> splitStringRef(StringRef str, char delimiter)
  {
    std::vector<StringRef> subStrings;
    std::size_t start = 0;
    for (std::size_t pos = 0; pos < str.size(); ++pos)
    {
      if (str[pos] == delimiter)
      {
        if (pos - start > 1)
          subStrings.push_back(str.substr(start, pos - start));
        start = pos + 1;
      }
    }
    if (start < str.size())
      subStrings.push_back(str.substr(start, str.size() - start));
    return subStrings;
  }
  
  pluralise::pluralise(std::size_t count, std::string const &label)
      : m_count(count), m_label(label)
  {}
  
  std::ostream &operator<<(std::ostream &os, pluralise const &pluraliser)
  {
    os << pluraliser.m_count << ' ' << pluraliser.m_label;
    if (pluraliser.m_count != 1)
      os << 's';
    return os;
  }
  
  } // namespace Catch
  // end catch_string_manip.cpp
  // start catch_stringref.cpp
  
  #include <algorithm>
  #include <cstdint>
  #include <cstring>
  #include <ostream>
  
  namespace Catch
  {
  StringRef::StringRef(char const *rawChars) noexcept
      : StringRef(rawChars,
                  static_cast<StringRef::size_type>(std::strlen(rawChars)))
  {}
  
  auto StringRef::c_str() const -> char const *
  {
    CATCH_ENFORCE(isNullTerminated(),
                  "Called StringRef::c_str() on a non-null-terminated instance");
    return m_start;
  }
  auto StringRef::data() const noexcept -> char const * { return m_start; }
  
  auto StringRef::substr(size_type start, size_type size) const noexcept
      -> StringRef
  {
    if (start < m_size)
    {
      return StringRef(m_start + start, (std::min)(m_size - start, size));
    }
    else
    {
      return StringRef();
    }
  }
  auto StringRef::operator==(StringRef const &other) const noexcept -> bool
  {
    return m_size == other.m_size &&
           (std::memcmp(m_start, other.m_start, m_size) == 0);
  }
  
  auto operator<<(std::ostream &os, StringRef const &str) -> std::ostream &
  {
    return os.write(str.data(), str.size());
  }
  
  auto operator+=(std::string &lhs, StringRef const &rhs) -> std::string &
  {
    lhs.append(rhs.data(), rhs.size());
    return lhs;
  }
  
  } // namespace Catch
  // end catch_stringref.cpp
  // start catch_tag_alias.cpp
  
  namespace Catch
  {
  TagAlias::TagAlias(std::string const &_tag, SourceLineInfo _lineInfo)
      : tag(_tag), lineInfo(_lineInfo)
  {}
  } // namespace Catch
  // end catch_tag_alias.cpp
  // start catch_tag_alias_autoregistrar.cpp
  
  namespace Catch
  {
  RegistrarForTagAliases::RegistrarForTagAliases(char const *alias,
                                                 char const *tag,
                                                 SourceLineInfo const &lineInfo)
  {
    CATCH_TRY { getMutableRegistryHub().registerTagAlias(alias, tag, lineInfo); }
    CATCH_CATCH_ALL
    {
      // Do not throw when constructing global objects, instead register the
      // exception to be processed later
      getMutableRegistryHub().registerStartupException();
    }
  }
  
  } // namespace Catch
  // end catch_tag_alias_autoregistrar.cpp
  // start catch_tag_alias_registry.cpp
  
  #include <sstream>
  
  namespace Catch
  {
  TagAliasRegistry::~TagAliasRegistry() {}
  
  TagAlias const *TagAliasRegistry::find(std::string const &alias) const
  {
    auto it = m_registry.find(alias);
    if (it != m_registry.end())
      return &(it->second);
    else
      return nullptr;
  }
  
  std::string
  TagAliasRegistry::expandAliases(std::string const &unexpandedTestSpec) const
  {
    std::string expandedTestSpec = unexpandedTestSpec;
    for (auto const &registryKvp : m_registry)
    {
      std::size_t pos = expandedTestSpec.find(registryKvp.first);
      if (pos != std::string::npos)
      {
        expandedTestSpec =
            expandedTestSpec.substr(0, pos) + registryKvp.second.tag +
            expandedTestSpec.substr(pos + registryKvp.first.size());
      }
    }
    return expandedTestSpec;
  }
  
  void TagAliasRegistry::add(std::string const &alias, std::string const &tag,
                             SourceLineInfo const &lineInfo)
  {
    CATCH_ENFORCE(startsWith(alias, "[@") && endsWith(alias, ']'),
                  "error: tag alias, '" << alias
                                        << "' is not of the form [@alias name].\n"
                                        << lineInfo);
  
    CATCH_ENFORCE(
        m_registry.insert(std::make_pair(alias, TagAlias(tag, lineInfo))).second,
        "error: tag alias, '" << alias << "' already registered.\n"
                              << "\tFirst seen at: " << find(alias)->lineInfo
                              << "\n"
                              << "\tRedefined at: " << lineInfo);
  }
  
  ITagAliasRegistry::~ITagAliasRegistry() {}
  
  ITagAliasRegistry const &ITagAliasRegistry::get()
  {
    return getRegistryHub().getTagAliasRegistry();
  }
  
  } // end namespace Catch
  // end catch_tag_alias_registry.cpp
  // start catch_test_case_info.cpp
  
  #include <algorithm>
  #include <cctype>
  #include <exception>
  #include <sstream>
  
  namespace Catch
  {
  namespace
  {
  TestCaseInfo::SpecialProperties parseSpecialTag(std::string const &tag)
  {
    if (startsWith(tag, '.') || tag == "!hide")
      return TestCaseInfo::IsHidden;
    else if (tag == "!throws")
      return TestCaseInfo::Throws;
    else if (tag == "!shouldfail")
      return TestCaseInfo::ShouldFail;
    else if (tag == "!mayfail")
      return TestCaseInfo::MayFail;
    else if (tag == "!nonportable")
      return TestCaseInfo::NonPortable;
    else if (tag == "!benchmark")
      return static_cast<TestCaseInfo::SpecialProperties>(
          TestCaseInfo::Benchmark | TestCaseInfo::IsHidden);
    else
      return TestCaseInfo::None;
  }
  bool isReservedTag(std::string const &tag)
  {
    return parseSpecialTag(tag) == TestCaseInfo::None && tag.size() > 0 &&
           !std::isalnum(static_cast<unsigned char>(tag[0]));
  }
  void enforceNotReservedTag(std::string const &tag,
                             SourceLineInfo const &_lineInfo)
  {
    CATCH_ENFORCE(!isReservedTag(tag),
                  "Tag name: [" << tag << "] is not allowed.\n"
                                << "Tag names starting with non alphanumeric "
                                   "characters are reserved\n"
                                << _lineInfo);
  }
  } // namespace
  
  TestCase makeTestCase(ITestInvoker *_testCase, std::string const &_className,
                        NameAndTags const &nameAndTags,
                        SourceLineInfo const &_lineInfo)
  {
    bool isHidden = false;
  
    // Parse out tags
    std::vector<std::string> tags;
    std::string desc, tag;
    bool inTag = false;
    for (char c : nameAndTags.tags)
    {
      if (!inTag)
      {
        if (c == '[')
          inTag = true;
        else
          desc += c;
      }
      else
      {
        if (c == ']')
        {
          TestCaseInfo::SpecialProperties prop = parseSpecialTag(tag);
          if ((prop & TestCaseInfo::IsHidden) != 0)
            isHidden = true;
          else if (prop == TestCaseInfo::None)
            enforceNotReservedTag(tag, _lineInfo);
  
          // Merged hide tags like `[.approvals]` should be added as
          // `[.][approvals]`. The `[.]` is added at later point, so
          // we only strip the prefix
          if (startsWith(tag, '.') && tag.size() > 1)
          {
            tag.erase(0, 1);
          }
          tags.push_back(tag);
          tag.clear();
          inTag = false;
        }
        else
          tag += c;
      }
    }
    if (isHidden)
    {
      // Add all "hidden" tags to make them behave identically
      tags.insert(tags.end(), {".", "!hide"});
    }
  
    TestCaseInfo info(static_cast<std::string>(nameAndTags.name), _className,
                      desc, tags, _lineInfo);
    return TestCase(_testCase, std::move(info));
  }
  
  void setTags(TestCaseInfo &testCaseInfo, std::vector<std::string> tags)
  {
    std::sort(begin(tags), end(tags));
    tags.erase(std::unique(begin(tags), end(tags)), end(tags));
    testCaseInfo.lcaseTags.clear();
  
    for (auto const &tag : tags)
    {
      std::string lcaseTag    = toLower(tag);
      testCaseInfo.properties = static_cast<TestCaseInfo::SpecialProperties>(
          testCaseInfo.properties | parseSpecialTag(lcaseTag));
      testCaseInfo.lcaseTags.push_back(lcaseTag);
    }
    testCaseInfo.tags = std::move(tags);
  }
  
  TestCaseInfo::TestCaseInfo(std::string const &_name,
                             std::string const &_className,
                             std::string const &_description,
                             std::vector<std::string> const &_tags,
                             SourceLineInfo const &_lineInfo)
      : name(_name), className(_className), description(_description),
        lineInfo(_lineInfo), properties(None)
  {
    setTags(*this, _tags);
  }
  
  bool TestCaseInfo::isHidden() const { return (properties & IsHidden) != 0; }
  bool TestCaseInfo::throws() const { return (properties & Throws) != 0; }
  bool TestCaseInfo::okToFail() const
  {
    return (properties & (ShouldFail | MayFail)) != 0;
  }
  bool TestCaseInfo::expectedToFail() const
  {
    return (properties & (ShouldFail)) != 0;
  }
  
  std::string TestCaseInfo::tagsAsString() const
  {
    std::string ret;
    // '[' and ']' per tag
    std::size_t full_size = 2 * tags.size();
    for (const auto &tag : tags)
    {
      full_size += tag.size();
    }
    ret.reserve(full_size);
    for (const auto &tag : tags)
    {
      ret.push_back('[');
      ret.append(tag);
      ret.push_back(']');
    }
  
    return ret;
  }
  
  TestCase::TestCase(ITestInvoker *testCase, TestCaseInfo &&info)
      : TestCaseInfo(std::move(info)), test(testCase)
  {}
  
  TestCase TestCase::withName(std::string const &_newName) const
  {
    TestCase other(*this);
    other.name = _newName;
    return other;
  }
  
  void TestCase::invoke() const { test->invoke(); }
  
  bool TestCase::operator==(TestCase const &other) const
  {
    return test.get() == other.test.get() && name == other.name &&
           className == other.className;
  }
  
  bool TestCase::operator<(TestCase const &other) const
  {
    return name < other.name;
  }
  
  TestCaseInfo const &TestCase::getTestCaseInfo() const { return *this; }
  
  } // end namespace Catch
  // end catch_test_case_info.cpp
  // start catch_test_case_registry_impl.cpp
  
  #include <sstream>
  
  namespace Catch
  {
  std::vector<TestCase>
  sortTests(IConfig const &config, std::vector<TestCase> const &unsortedTestCases)
  {
    std::vector<TestCase> sorted = unsortedTestCases;
  
    switch (config.runOrder())
    {
    case RunTests::InLexicographicalOrder:
      std::sort(sorted.begin(), sorted.end());
      break;
    case RunTests::InRandomOrder:
      seedRng(config);
      std::shuffle(sorted.begin(), sorted.end(), rng());
      break;
    case RunTests::InDeclarationOrder:
      // already in declaration order
      break;
    }
    return sorted;
  }
  
  bool isThrowSafe(TestCase const &testCase, IConfig const &config)
  {
    return !testCase.throws() || config.allowThrows();
  }
  
  bool matchTest(TestCase const &testCase, TestSpec const &testSpec,
                 IConfig const &config)
  {
    return testSpec.matches(testCase) && isThrowSafe(testCase, config);
  }
  
  void enforceNoDuplicateTestCases(std::vector<TestCase> const &functions)
  {
    std::set<TestCase> seenFunctions;
    for (auto const &function : functions)
    {
      auto prev = seenFunctions.insert(function);
      CATCH_ENFORCE(prev.second, "error: TEST_CASE( \""
                                     << function.name << "\" ) already defined.\n"
                                     << "\tFirst seen at "
                                     << prev.first->getTestCaseInfo().lineInfo
                                     << "\n"
                                     << "\tRedefined at "
                                     << function.getTestCaseInfo().lineInfo);
    }
  }
  
  std::vector<TestCase> filterTests(std::vector<TestCase> const &testCases,
                                    TestSpec const &testSpec,
                                    IConfig const &config)
  {
    std::vector<TestCase> filtered;
    filtered.reserve(testCases.size());
    for (auto const &testCase : testCases)
    {
      if ((!testSpec.hasFilters() && !testCase.isHidden()) ||
          (testSpec.hasFilters() && matchTest(testCase, testSpec, config)))
      {
        filtered.push_back(testCase);
      }
    }
    return filtered;
  }
  std::vector<TestCase> const &getAllTestCasesSorted(IConfig const &config)
  {
    return getRegistryHub().getTestCaseRegistry().getAllTestsSorted(config);
  }
  
  void TestRegistry::registerTest(TestCase const &testCase)
  {
    std::string name = testCase.getTestCaseInfo().name;
    if (name.empty())
    {
      ReusableStringStream rss;
      rss << "Anonymous test case " << ++m_unnamedCount;
      return registerTest(testCase.withName(rss.str()));
    }
    m_functions.push_back(testCase);
  }
  
  std::vector<TestCase> const &TestRegistry::getAllTests() const
  {
    return m_functions;
  }
  std::vector<TestCase> const &
  TestRegistry::getAllTestsSorted(IConfig const &config) const
  {
    if (m_sortedFunctions.empty())
      enforceNoDuplicateTestCases(m_functions);
  
    if (m_currentSortOrder != config.runOrder() || m_sortedFunctions.empty())
    {
      m_sortedFunctions  = sortTests(config, m_functions);
      m_currentSortOrder = config.runOrder();
    }
    return m_sortedFunctions;
  }
  
  ///////////////////////////////////////////////////////////////////////////
  TestInvokerAsFunction::TestInvokerAsFunction(void (*testAsFunction)()) noexcept
      : m_testAsFunction(testAsFunction)
  {}
  
  void TestInvokerAsFunction::invoke() const { m_testAsFunction(); }
  
  std::string extractClassName(StringRef const &classOrQualifiedMethodName)
  {
    std::string className(classOrQualifiedMethodName);
    if (startsWith(className, '&'))
    {
      std::size_t lastColons        = className.rfind("::");
      std::size_t penultimateColons = className.rfind("::", lastColons - 1);
      if (penultimateColons == std::string::npos)
        penultimateColons = 1;
      className =
          className.substr(penultimateColons, lastColons - penultimateColons);
    }
    return className;
  }
  
  } // end namespace Catch
  // end catch_test_case_registry_impl.cpp
  // start catch_test_case_tracker.cpp
  
  #include <algorithm>
  #include <cassert>
  #include <memory>
  #include <sstream>
  #include <stdexcept>
  
  #if defined(__clang__)
  #pragma clang diagnostic push
  #pragma clang diagnostic ignored "-Wexit-time-destructors"
  #endif
  
  namespace Catch
  {
  namespace TestCaseTracking
  {
  NameAndLocation::NameAndLocation(std::string const &_name,
                                   SourceLineInfo const &_location)
      : name(_name), location(_location)
  {}
  
  ITracker::~ITracker() = default;
  
  ITracker &TrackerContext::startRun()
  {
    m_rootTracker = std::make_shared<SectionTracker>(
        NameAndLocation("{root}", CATCH_INTERNAL_LINEINFO), *this, nullptr);
    m_currentTracker = nullptr;
    m_runState       = Executing;
    return *m_rootTracker;
  }
  
  void TrackerContext::endRun()
  {
    m_rootTracker.reset();
    m_currentTracker = nullptr;
    m_runState       = NotStarted;
  }
  
  void TrackerContext::startCycle()
  {
    m_currentTracker = m_rootTracker.get();
    m_runState       = Executing;
  }
  void TrackerContext::completeCycle() { m_runState = CompletedCycle; }
  
  bool TrackerContext::completedCycle() const
  {
    return m_runState == CompletedCycle;
  }
  ITracker &TrackerContext::currentTracker() { return *m_currentTracker; }
  void TrackerContext::setCurrentTracker(ITracker *tracker)
  {
    m_currentTracker = tracker;
  }
  
  TrackerBase::TrackerBase(NameAndLocation const &nameAndLocation,
                           TrackerContext &ctx, ITracker *parent)
      : m_nameAndLocation(nameAndLocation), m_ctx(ctx), m_parent(parent)
  {}
  
  NameAndLocation const &TrackerBase::nameAndLocation() const
  {
    return m_nameAndLocation;
  }
  bool TrackerBase::isComplete() const
  {
    return m_runState == CompletedSuccessfully || m_runState == Failed;
  }
  bool TrackerBase::isSuccessfullyCompleted() const
  {
    return m_runState == CompletedSuccessfully;
  }
  bool TrackerBase::isOpen() const
  {
    return m_runState != NotStarted && !isComplete();
  }
  bool TrackerBase::hasChildren() const { return !m_children.empty(); }
  
  void TrackerBase::addChild(ITrackerPtr const &child)
  {
    m_children.push_back(child);
  }
  
  ITrackerPtr TrackerBase::findChild(NameAndLocation const &nameAndLocation)
  {
    auto it = std::find_if(m_children.begin(), m_children.end(),
                           [&nameAndLocation](ITrackerPtr const &tracker) {
                             return tracker->nameAndLocation().location ==
                                        nameAndLocation.location &&
                                    tracker->nameAndLocation().name ==
                                        nameAndLocation.name;
                           });
    return (it != m_children.end()) ? *it : nullptr;
  }
  ITracker &TrackerBase::parent()
  {
    assert(m_parent); // Should always be non-null except for root
    return *m_parent;
  }
  
  void TrackerBase::openChild()
  {
    if (m_runState != ExecutingChildren)
    {
      m_runState = ExecutingChildren;
      if (m_parent)
        m_parent->openChild();
    }
  }
  
  bool TrackerBase::isSectionTracker() const { return false; }
  bool TrackerBase::isGeneratorTracker() const { return false; }
  
  void TrackerBase::open()
  {
    m_runState = Executing;
    moveToThis();
    if (m_parent)
      m_parent->openChild();
  }
  
  void TrackerBase::close()
  {
    // Close any still open children (e.g. generators)
    while (&m_ctx.currentTracker() != this)
      m_ctx.currentTracker().close();
  
    switch (m_runState)
    {
    case NeedsAnotherRun:
      break;
  
    case Executing:
      m_runState = CompletedSuccessfully;
      break;
    case ExecutingChildren:
      if (std::all_of(m_children.begin(), m_children.end(),
                      [](ITrackerPtr const &t) { return t->isComplete(); }))
        m_runState = CompletedSuccessfully;
      break;
  
    case NotStarted:
    case CompletedSuccessfully:
    case Failed:
      CATCH_INTERNAL_ERROR("Illogical state: " << m_runState);
  
    default:
      CATCH_INTERNAL_ERROR("Unknown state: " << m_runState);
    }
    moveToParent();
    m_ctx.completeCycle();
  }
  void TrackerBase::fail()
  {
    m_runState = Failed;
    if (m_parent)
      m_parent->markAsNeedingAnotherRun();
    moveToParent();
    m_ctx.completeCycle();
  }
  void TrackerBase::markAsNeedingAnotherRun() { m_runState = NeedsAnotherRun; }
  
  void TrackerBase::moveToParent()
  {
    assert(m_parent);
    m_ctx.setCurrentTracker(m_parent);
  }
  void TrackerBase::moveToThis() { m_ctx.setCurrentTracker(this); }
  
  SectionTracker::SectionTracker(NameAndLocation const &nameAndLocation,
                                 TrackerContext &ctx, ITracker *parent)
      : TrackerBase(nameAndLocation, ctx, parent),
        m_trimmed_name(trim(nameAndLocation.name))
  {
    if (parent)
    {
      while (!parent->isSectionTracker())
        parent = &parent->parent();
  
      SectionTracker &parentSection = static_cast<SectionTracker &>(*parent);
      addNextFilters(parentSection.m_filters);
    }
  }
  
  bool SectionTracker::isComplete() const
  {
    bool complete = true;
  
    if ((m_filters.empty() || m_filters[0] == "") ||
        std::find(m_filters.begin(), m_filters.end(), m_trimmed_name) !=
            m_filters.end())
    {
      complete = TrackerBase::isComplete();
    }
    return complete;
  }
  
  bool SectionTracker::isSectionTracker() const { return true; }
  
  SectionTracker &SectionTracker::acquire(TrackerContext &ctx,
                                          NameAndLocation const &nameAndLocation)
  {
    std::shared_ptr<SectionTracker> section;
  
    ITracker &currentTracker = ctx.currentTracker();
    if (ITrackerPtr childTracker = currentTracker.findChild(nameAndLocation))
    {
      assert(childTracker);
      assert(childTracker->isSectionTracker());
      section = std::static_pointer_cast<SectionTracker>(childTracker);
    }
    else
    {
      section =
          std::make_shared<SectionTracker>(nameAndLocation, ctx, &currentTracker);
      currentTracker.addChild(section);
    }
    if (!ctx.completedCycle())
      section->tryOpen();
    return *section;
  }
  
  void SectionTracker::tryOpen()
  {
    if (!isComplete())
      open();
  }
  
  void SectionTracker::addInitialFilters(std::vector<std::string> const &filters)
  {
    if (!filters.empty())
    {
      m_filters.reserve(m_filters.size() + filters.size() + 2);
      m_filters.emplace_back(""); // Root - should never be consulted
      m_filters.emplace_back(""); // Test Case - not a section filter
      m_filters.insert(m_filters.end(), filters.begin(), filters.end());
    }
  }
  void SectionTracker::addNextFilters(std::vector<std::string> const &filters)
  {
    if (filters.size() > 1)
      m_filters.insert(m_filters.end(), filters.begin() + 1, filters.end());
  }
  
  } // namespace TestCaseTracking
  
  using TestCaseTracking::ITracker;
  using TestCaseTracking::SectionTracker;
  using TestCaseTracking::TrackerContext;
  
  } // namespace Catch
  
  #if defined(__clang__)
  #pragma clang diagnostic pop
  #endif
  // end catch_test_case_tracker.cpp
  // start catch_test_registry.cpp
  
  namespace Catch
  {
  auto makeTestInvoker(void (*testAsFunction)()) noexcept -> ITestInvoker *
  {
    return new (std::nothrow) TestInvokerAsFunction(testAsFunction);
  }
  
  NameAndTags::NameAndTags(StringRef const &name_,
                           StringRef const &tags_) noexcept
      : name(name_), tags(tags_)
  {}
  
  AutoReg::AutoReg(ITestInvoker *invoker, SourceLineInfo const &lineInfo,
                   StringRef const &classOrMethod,
                   NameAndTags const &nameAndTags) noexcept
  {
    CATCH_TRY
    {
      getMutableRegistryHub().registerTest(makeTestCase(
          invoker, extractClassName(classOrMethod), nameAndTags, lineInfo));
    }
    CATCH_CATCH_ALL
    {
      // Do not throw when constructing global objects, instead register the
      // exception to be processed later
      getMutableRegistryHub().registerStartupException();
    }
  }
  
  AutoReg::~AutoReg() = default;
  } // namespace Catch
  // end catch_test_registry.cpp
  // start catch_test_spec.cpp
  
  #include <algorithm>
  #include <memory>
  #include <string>
  #include <vector>
  
  namespace Catch
  {
  TestSpec::Pattern::Pattern(std::string const &name) : m_name(name) {}
  
  TestSpec::Pattern::~Pattern() = default;
  
  std::string const &TestSpec::Pattern::name() const { return m_name; }
  
  TestSpec::NamePattern::NamePattern(std::string const &name,
                                     std::string const &filterString)
      : Pattern(filterString), m_wildcardPattern(toLower(name), CaseSensitive::No)
  {}
  
  bool TestSpec::NamePattern::matches(TestCaseInfo const &testCase) const
  {
    return m_wildcardPattern.matches(testCase.name);
  }
  
  TestSpec::TagPattern::TagPattern(std::string const &tag,
                                   std::string const &filterString)
      : Pattern(filterString), m_tag(toLower(tag))
  {}
  
  bool TestSpec::TagPattern::matches(TestCaseInfo const &testCase) const
  {
    return std::find(begin(testCase.lcaseTags), end(testCase.lcaseTags), m_tag) !=
           end(testCase.lcaseTags);
  }
  
  TestSpec::ExcludedPattern::ExcludedPattern(PatternPtr const &underlyingPattern)
      : Pattern(underlyingPattern->name()), m_underlyingPattern(underlyingPattern)
  {}
  
  bool TestSpec::ExcludedPattern::matches(TestCaseInfo const &testCase) const
  {
    return !m_underlyingPattern->matches(testCase);
  }
  
  bool TestSpec::Filter::matches(TestCaseInfo const &testCase) const
  {
    return std::all_of(m_patterns.begin(), m_patterns.end(),
                       [&](PatternPtr const &p) { return p->matches(testCase); });
  }
  
  std::string TestSpec::Filter::name() const
  {
    std::string name;
    for (auto const &p : m_patterns)
      name += p->name();
    return name;
  }
  
  bool TestSpec::hasFilters() const { return !m_filters.empty(); }
  
  bool TestSpec::matches(TestCaseInfo const &testCase) const
  {
    return std::any_of(m_filters.begin(), m_filters.end(),
                       [&](Filter const &f) { return f.matches(testCase); });
  }
  
  TestSpec::Matches
  TestSpec::matchesByFilter(std::vector<TestCase> const &testCases,
                            IConfig const &config) const
  {
    Matches matches(m_filters.size());
    std::transform(m_filters.begin(), m_filters.end(), matches.begin(),
                   [&](Filter const &filter) {
                     std::vector<TestCase const *> currentMatches;
                     for (auto const &test : testCases)
                       if (isThrowSafe(test, config) && filter.matches(test))
                         currentMatches.emplace_back(&test);
                     return FilterMatch{filter.name(), currentMatches};
                   });
    return matches;
  }
  
  const TestSpec::vectorStrings &TestSpec::getInvalidArgs() const
  {
    return (m_invalidArgs);
  }
  
  } // namespace Catch
  // end catch_test_spec.cpp
  // start catch_test_spec_parser.cpp
  
  namespace Catch
  {
  TestSpecParser::TestSpecParser(ITagAliasRegistry const &tagAliases)
      : m_tagAliases(&tagAliases)
  {}
  
  TestSpecParser &TestSpecParser::parse(std::string const &arg)
  {
    m_mode      = None;
    m_exclusion = false;
    m_arg       = m_tagAliases->expandAliases(arg);
    m_escapeChars.clear();
    m_substring.reserve(m_arg.size());
    m_patternName.reserve(m_arg.size());
    m_realPatternPos = 0;
  
    for (m_pos = 0; m_pos < m_arg.size(); ++m_pos)
      // if visitChar fails
      if (!visitChar(m_arg[m_pos]))
      {
        m_testSpec.m_invalidArgs.push_back(arg);
        break;
      }
    endMode();
    return *this;
  }
  TestSpec TestSpecParser::testSpec()
  {
    addFilter();
    return m_testSpec;
  }
  bool TestSpecParser::visitChar(char c)
  {
    if ((m_mode != EscapedName) && (c == '\\'))
    {
      escape();
      addCharToPattern(c);
      return true;
    }
    else if ((m_mode != EscapedName) && (c == ','))
    {
      return separate();
    }
  
    switch (m_mode)
    {
    case None:
      if (processNoneChar(c))
        return true;
      break;
    case Name:
      processNameChar(c);
      break;
    case EscapedName:
      endMode();
      addCharToPattern(c);
      return true;
    default:
    case Tag:
    case QuotedName:
      if (processOtherChar(c))
        return true;
      break;
    }
  
    m_substring += c;
    if (!isControlChar(c))
    {
      m_patternName += c;
      m_realPatternPos++;
    }
    return true;
  }
  // Two of the processing methods return true to signal the caller to return
  // without adding the given character to the current pattern strings
  bool TestSpecParser::processNoneChar(char c)
  {
    switch (c)
    {
    case ' ':
      return true;
    case '~':
      m_exclusion = true;
      return false;
    case '[':
      startNewMode(Tag);
      return false;
    case '"':
      startNewMode(QuotedName);
      return false;
    default:
      startNewMode(Name);
      return false;
    }
  }
  void TestSpecParser::processNameChar(char c)
  {
    if (c == '[')
    {
      if (m_substring == "exclude:")
        m_exclusion = true;
      else
        endMode();
      startNewMode(Tag);
    }
  }
  bool TestSpecParser::processOtherChar(char c)
  {
    if (!isControlChar(c))
      return false;
    m_substring += c;
    endMode();
    return true;
  }
  void TestSpecParser::startNewMode(Mode mode) { m_mode = mode; }
  void TestSpecParser::endMode()
  {
    switch (m_mode)
    {
    case Name:
    case QuotedName:
      return addNamePattern();
    case Tag:
      return addTagPattern();
    case EscapedName:
      revertBackToLastMode();
      return;
    case None:
    default:
      return startNewMode(None);
    }
  }
  void TestSpecParser::escape()
  {
    saveLastMode();
    m_mode = EscapedName;
    m_escapeChars.push_back(m_realPatternPos);
  }
  bool TestSpecParser::isControlChar(char c) const
  {
    switch (m_mode)
    {
    default:
      return false;
    case None:
      return c == '~';
    case Name:
      return c == '[';
    case EscapedName:
      return true;
    case QuotedName:
      return c == '"';
    case Tag:
      return c == '[' || c == ']';
    }
  }
  
  void TestSpecParser::addFilter()
  {
    if (!m_currentFilter.m_patterns.empty())
    {
      m_testSpec.m_filters.push_back(m_currentFilter);
      m_currentFilter = TestSpec::Filter();
    }
  }
  
  void TestSpecParser::saveLastMode() { lastMode = m_mode; }
  
  void TestSpecParser::revertBackToLastMode() { m_mode = lastMode; }
  
  bool TestSpecParser::separate()
  {
    if ((m_mode == QuotedName) || (m_mode == Tag))
    {
      // invalid argument, signal failure to previous scope.
      m_mode = None;
      m_pos  = m_arg.size();
      m_substring.clear();
      m_patternName.clear();
      return false;
    }
    endMode();
    addFilter();
    return true; // success
  }
  
  std::string TestSpecParser::preprocessPattern()
  {
    std::string token = m_patternName;
    for (std::size_t i = 0; i < m_escapeChars.size(); ++i)
      token = token.substr(0, m_escapeChars[i] - i) +
              token.substr(m_escapeChars[i] - i + 1);
    m_escapeChars.clear();
    if (startsWith(token, "exclude:"))
    {
      m_exclusion = true;
      token       = token.substr(8);
    }
  
    m_patternName.clear();
  
    return token;
  }
  
  void TestSpecParser::addNamePattern()
  {
    auto token = preprocessPattern();
  
    if (!token.empty())
    {
      TestSpec::PatternPtr pattern =
          std::make_shared<TestSpec::NamePattern>(token, m_substring);
      if (m_exclusion)
        pattern = std::make_shared<TestSpec::ExcludedPattern>(pattern);
      m_currentFilter.m_patterns.push_back(pattern);
    }
    m_substring.clear();
    m_exclusion = false;
    m_mode      = None;
  }
  
  void TestSpecParser::addTagPattern()
  {
    auto token = preprocessPattern();
  
    if (!token.empty())
    {
      // If the tag pattern is the "hide and tag" shorthand (e.g. [.foo])
      // we have to create a separate hide tag and shorten the real one
      if (token.size() > 1 && token[0] == '.')
      {
        token.erase(token.begin());
        TestSpec::PatternPtr pattern =
            std::make_shared<TestSpec::TagPattern>(".", m_substring);
        if (m_exclusion)
        {
          pattern = std::make_shared<TestSpec::ExcludedPattern>(pattern);
        }
        m_currentFilter.m_patterns.push_back(pattern);
      }
  
      TestSpec::PatternPtr pattern =
          std::make_shared<TestSpec::TagPattern>(token, m_substring);
  
      if (m_exclusion)
      {
        pattern = std::make_shared<TestSpec::ExcludedPattern>(pattern);
      }
      m_currentFilter.m_patterns.push_back(pattern);
    }
    m_substring.clear();
    m_exclusion = false;
    m_mode      = None;
  }
  
  TestSpec parseTestSpec(std::string const &arg)
  {
    return TestSpecParser(ITagAliasRegistry::get()).parse(arg).testSpec();
  }
  
  } // namespace Catch
  // end catch_test_spec_parser.cpp
  // start catch_timer.cpp
  
  #include <chrono>
  
  static const uint64_t nanosecondsInSecond = 1000000000;
  
  namespace Catch
  {
  auto getCurrentNanosecondsSinceEpoch() -> uint64_t
  {
    return std::chrono::duration_cast<std::chrono::nanoseconds>(
               std::chrono::high_resolution_clock::now().time_since_epoch())
        .count();
  }
  
  namespace
  {
  auto estimateClockResolution() -> uint64_t
  {
    uint64_t sum                     = 0;
    static const uint64_t iterations = 1000000;
  
    auto startTime = getCurrentNanosecondsSinceEpoch();
  
    for (std::size_t i = 0; i < iterations; ++i)
    {
      uint64_t ticks;
      uint64_t baseTicks = getCurrentNanosecondsSinceEpoch();
      do
      {
        ticks = getCurrentNanosecondsSinceEpoch();
      } while (ticks == baseTicks);
  
      auto delta = ticks - baseTicks;
      sum += delta;
  
      // If we have been calibrating for over 3 seconds -- the clock
      // is terrible and we should move on.
      // TBD: How to signal that the measured resolution is probably wrong?
      if (ticks > startTime + 3 * nanosecondsInSecond)
      {
        return sum / (i + 1u);
      }
    }
  
    // We're just taking the mean, here. To do better we could take the std. dev
    // and exclude outliers
    // - and potentially do more iterations if there's a high variance.
    return sum / iterations;
  }
  } // namespace
  auto getEstimatedClockResolution() -> uint64_t
  {
    static auto s_resolution = estimateClockResolution();
    return s_resolution;
  }
  
  void Timer::start() { m_nanoseconds = getCurrentNanosecondsSinceEpoch(); }
  auto Timer::getElapsedNanoseconds() const -> uint64_t
  {
    return getCurrentNanosecondsSinceEpoch() - m_nanoseconds;
  }
  auto Timer::getElapsedMicroseconds() const -> uint64_t
  {
    return getElapsedNanoseconds() / 1000;
  }
  auto Timer::getElapsedMilliseconds() const -> unsigned int
  {
    return static_cast<unsigned int>(getElapsedMicroseconds() / 1000);
  }
  auto Timer::getElapsedSeconds() const -> double
  {
    return getElapsedMicroseconds() / 1000000.0;
  }
  
  } // namespace Catch
  // end catch_timer.cpp
  // start catch_tostring.cpp
  
  #if defined(__clang__)
  #pragma clang diagnostic push
  #pragma clang diagnostic ignored "-Wexit-time-destructors"
  #pragma clang diagnostic ignored "-Wglobal-constructors"
  #endif
  
  // Enable specific decls locally
  #if !defined(CATCH_CONFIG_ENABLE_CHRONO_STRINGMAKER)
  #define CATCH_CONFIG_ENABLE_CHRONO_STRINGMAKER
  #endif
  
  #include <cmath>
  #include <iomanip>
  
  namespace Catch
  {
  namespace Detail
  {
  const std::string unprintableString = "{?}";
  
  namespace
  {
  const int hexThreshold = 255;
  
  struct Endianness
  {
    enum Arch
    {
      Big,
      Little
    };
  
    static Arch which()
    {
      int one = 1;
      // If the lowest byte we read is non-zero, we can assume
      // that little endian format is used.
      auto value = *reinterpret_cast<char *>(&one);
      return value ? Little : Big;
    }
  };
  } // namespace
  
  std::string rawMemoryToString(const void *object, std::size_t size)
  {
    // Reverse order for little endian architectures
    int i = 0, end = static_cast<int>(size), inc = 1;
    if (Endianness::which() == Endianness::Little)
    {
      i   = end - 1;
      end = inc = -1;
    }
  
    unsigned char const *bytes = static_cast<unsigned char const *>(object);
    ReusableStringStream rss;
    rss << "0x" << std::setfill('0') << std::hex;
    for (; i != end; i += inc)
      rss << std::setw(2) << static_cast<unsigned>(bytes[i]);
    return rss.str();
  }
  } // namespace Detail
  
  template<typename T>
  std::string fpToString(T value, int precision)
  {
    if (Catch::isnan(value))
    {
      return "nan";
    }
  
    ReusableStringStream rss;
    rss << std::setprecision(precision) << std::fixed << value;
    std::string d = rss.str();
    std::size_t i = d.find_last_not_of('0');
    if (i != std::string::npos && i != d.size() - 1)
    {
      if (d[i] == '.')
        i++;
      d = d.substr(0, i + 1);
    }
    return d;
  }
  
  //// ======================================================= ////
  //
  //   Out-of-line defs for full specialization of StringMaker
  //
  //// ======================================================= ////
  
  std::string StringMaker<std::string>::convert(const std::string &str)
  {
    if (!getCurrentContext().getConfig()->showInvisibles())
    {
      return '"' + str + '"';
    }
  
    std::string s("\"");
    for (char c : str)
    {
      switch (c)
      {
      case '\n':
        s.append("\\n");
        break;
      case '\t':
        s.append("\\t");
        break;
      default:
        s.push_back(c);
        break;
      }
    }
    s.append("\"");
    return s;
  }
  
  #ifdef CATCH_CONFIG_CPP17_STRING_VIEW
  std::string StringMaker<std::string_view>::convert(std::string_view str)
  {
    return ::Catch::Detail::stringify(std::string{str});
  }
  #endif
  
  std::string StringMaker<char const *>::convert(char const *str)
  {
    if (str)
    {
      return ::Catch::Detail::stringify(std::string{str});
    }
    else
    {
      return {"{null string}"};
    }
  }
  std::string StringMaker<char *>::convert(char *str)
  {
    if (str)
    {
      return ::Catch::Detail::stringify(std::string{str});
    }
    else
    {
      return {"{null string}"};
    }
  }
  
  #ifdef CATCH_CONFIG_WCHAR
  std::string StringMaker<std::wstring>::convert(const std::wstring &wstr)
  {
    std::string s;
    s.reserve(wstr.size());
    for (auto c : wstr)
    {
      s += (c <= 0xff) ? static_cast<char>(c) : '?';
    }
    return ::Catch::Detail::stringify(s);
  }
  
  #ifdef CATCH_CONFIG_CPP17_STRING_VIEW
  std::string StringMaker<std::wstring_view>::convert(std::wstring_view str)
  {
    return StringMaker<std::wstring>::convert(std::wstring(str));
  }
  #endif
  
  std::string StringMaker<wchar_t const *>::convert(wchar_t const *str)
  {
    if (str)
    {
      return ::Catch::Detail::stringify(std::wstring{str});
    }
    else
    {
      return {"{null string}"};
    }
  }
  std::string StringMaker<wchar_t *>::convert(wchar_t *str)
  {
    if (str)
    {
      return ::Catch::Detail::stringify(std::wstring{str});
    }
    else
    {
      return {"{null string}"};
    }
  }
  #endif
  
  #if defined(CATCH_CONFIG_CPP17_BYTE)
  #include <cstddef>
  std::string StringMaker<std::byte>::convert(std::byte value)
  {
    return ::Catch::Detail::stringify(std::to_integer<unsigned long long>(value));
  }
  #endif // defined(CATCH_CONFIG_CPP17_BYTE)
  
  std::string StringMaker<int>::convert(int value)
  {
    return ::Catch::Detail::stringify(static_cast<long long>(value));
  }
  std::string StringMaker<long>::convert(long value)
  {
    return ::Catch::Detail::stringify(static_cast<long long>(value));
  }
  std::string StringMaker<long long>::convert(long long value)
  {
    ReusableStringStream rss;
    rss << value;
    if (value > Detail::hexThreshold)
    {
      rss << " (0x" << std::hex << value << ')';
    }
    return rss.str();
  }
  
  std::string StringMaker<unsigned int>::convert(unsigned int value)
  {
    return ::Catch::Detail::stringify(static_cast<unsigned long long>(value));
  }
  std::string StringMaker<unsigned long>::convert(unsigned long value)
  {
    return ::Catch::Detail::stringify(static_cast<unsigned long long>(value));
  }
  std::string StringMaker<unsigned long long>::convert(unsigned long long value)
  {
    ReusableStringStream rss;
    rss << value;
    if (value > Detail::hexThreshold)
    {
      rss << " (0x" << std::hex << value << ')';
    }
    return rss.str();
  }
  
  std::string StringMaker<bool>::convert(bool b) { return b ? "true" : "false"; }
  
  std::string StringMaker<signed char>::convert(signed char value)
  {
    if (value == '\r')
    {
      return "'\\r'";
    }
    else if (value == '\f')
    {
      return "'\\f'";
    }
    else if (value == '\n')
    {
      return "'\\n'";
    }
    else if (value == '\t')
    {
      return "'\\t'";
    }
    else if ('\0' <= value && value < ' ')
    {
      return ::Catch::Detail::stringify(static_cast<unsigned int>(value));
    }
    else
    {
      char chstr[] = "' '";
      chstr[1]     = value;
      return chstr;
    }
  }
  std::string StringMaker<char>::convert(char c)
  {
    return ::Catch::Detail::stringify(static_cast<signed char>(c));
  }
  std::string StringMaker<unsigned char>::convert(unsigned char c)
  {
    return ::Catch::Detail::stringify(static_cast<char>(c));
  }
  
  std::string StringMaker<std::nullptr_t>::convert(std::nullptr_t)
  {
    return "nullptr";
  }
  
  int StringMaker<float>::precision = 5;
  
  std::string StringMaker<float>::convert(float value)
  {
    return fpToString(value, precision) + 'f';
  }
  
  int StringMaker<double>::precision = 10;
  
  std::string StringMaker<double>::convert(double value)
  {
    return fpToString(value, precision);
  }
  
  std::string ratio_string<std::atto>::symbol() { return "a"; }
  std::string ratio_string<std::femto>::symbol() { return "f"; }
  std::string ratio_string<std::pico>::symbol() { return "p"; }
  std::string ratio_string<std::nano>::symbol() { return "n"; }
  std::string ratio_string<std::micro>::symbol() { return "u"; }
  std::string ratio_string<std::milli>::symbol() { return "m"; }
  
  } // end namespace Catch
  
  #if defined(__clang__)
  #pragma clang diagnostic pop
  #endif
  
  // end catch_tostring.cpp
  // start catch_totals.cpp
  
  namespace Catch
  {
  Counts Counts::operator-(Counts const &other) const
  {
    Counts diff;
    diff.passed      = passed - other.passed;
    diff.failed      = failed - other.failed;
    diff.failedButOk = failedButOk - other.failedButOk;
    return diff;
  }
  
  Counts &Counts::operator+=(Counts const &other)
  {
    passed += other.passed;
    failed += other.failed;
    failedButOk += other.failedButOk;
    return *this;
  }
  
  std::size_t Counts::total() const { return passed + failed + failedButOk; }
  bool Counts::allPassed() const { return failed == 0 && failedButOk == 0; }
  bool Counts::allOk() const { return failed == 0; }
  
  Totals Totals::operator-(Totals const &other) const
  {
    Totals diff;
    diff.assertions = assertions - other.assertions;
    diff.testCases  = testCases - other.testCases;
    return diff;
  }
  
  Totals &Totals::operator+=(Totals const &other)
  {
    assertions += other.assertions;
    testCases += other.testCases;
    return *this;
  }
  
  Totals Totals::delta(Totals const &prevTotals) const
  {
    Totals diff = *this - prevTotals;
    if (diff.assertions.failed > 0)
      ++diff.testCases.failed;
    else if (diff.assertions.failedButOk > 0)
      ++diff.testCases.failedButOk;
    else
      ++diff.testCases.passed;
    return diff;
  }
  
  } // namespace Catch
  // end catch_totals.cpp
  // start catch_uncaught_exceptions.cpp
  
  #include <exception>
  
  namespace Catch
  {
  bool uncaught_exceptions()
  {
  #if defined(CATCH_CONFIG_CPP17_UNCAUGHT_EXCEPTIONS)
    return std::uncaught_exceptions() > 0;
  #else
    return std::uncaught_exception();
  #endif
  }
  } // end namespace Catch
  // end catch_uncaught_exceptions.cpp
  // start catch_version.cpp
  
  #include <ostream>
  
  namespace Catch
  {
  Version::Version(unsigned int _majorVersion, unsigned int _minorVersion,
                   unsigned int _patchNumber, char const *const _branchName,
                   unsigned int _buildNumber)
      : majorVersion(_majorVersion), minorVersion(_minorVersion),
        patchNumber(_patchNumber), branchName(_branchName),
        buildNumber(_buildNumber)
  {}
  
  std::ostream &operator<<(std::ostream &os, Version const &version)
  {
    os << version.majorVersion << '.' << version.minorVersion << '.'
       << version.patchNumber;
    // branchName is never null -> 0th char is \0 if it is empty
    if (version.branchName[0])
    {
      os << '-' << version.branchName << '.' << version.buildNumber;
    }
    return os;
  }
  
  Version const &libraryVersion()
  {
    static Version version(2, 11, 3, "", 0);
    return version;
  }
  
  } // namespace Catch
  // end catch_version.cpp
  // start catch_wildcard_pattern.cpp
  
  namespace Catch
  {
  WildcardPattern::WildcardPattern(std::string const &pattern,
                                   CaseSensitive::Choice caseSensitivity)
      : m_caseSensitivity(caseSensitivity), m_pattern(normaliseString(pattern))
  {
    if (startsWith(m_pattern, '*'))
    {
      m_pattern  = m_pattern.substr(1);
      m_wildcard = WildcardAtStart;
    }
    if (endsWith(m_pattern, '*'))
    {
      m_pattern  = m_pattern.substr(0, m_pattern.size() - 1);
      m_wildcard = static_cast<WildcardPosition>(m_wildcard | WildcardAtEnd);
    }
  }
  
  bool WildcardPattern::matches(std::string const &str) const
  {
    switch (m_wildcard)
    {
    case NoWildcard:
      return m_pattern == normaliseString(str);
    case WildcardAtStart:
      return endsWith(normaliseString(str), m_pattern);
    case WildcardAtEnd:
      return startsWith(normaliseString(str), m_pattern);
    case WildcardAtBothEnds:
      return contains(normaliseString(str), m_pattern);
    default:
      CATCH_INTERNAL_ERROR("Unknown enum");
    }
  }
  
  std::string WildcardPattern::normaliseString(std::string const &str) const
  {
    return trim(m_caseSensitivity == CaseSensitive::No ? toLower(str) : str);
  }
  } // namespace Catch
  // end catch_wildcard_pattern.cpp
  // start catch_xmlwriter.cpp
  
  #include <iomanip>
  #include <type_traits>
  
  namespace Catch
  {
  namespace
  {
  size_t trailingBytes(unsigned char c)
  {
    if ((c & 0xE0) == 0xC0)
    {
      return 2;
    }
    if ((c & 0xF0) == 0xE0)
    {
      return 3;
    }
    if ((c & 0xF8) == 0xF0)
    {
      return 4;
    }
    CATCH_INTERNAL_ERROR("Invalid multibyte utf-8 start byte encountered");
  }
  
  uint32_t headerValue(unsigned char c)
  {
    if ((c & 0xE0) == 0xC0)
    {
      return c & 0x1F;
    }
    if ((c & 0xF0) == 0xE0)
    {
      return c & 0x0F;
    }
    if ((c & 0xF8) == 0xF0)
    {
      return c & 0x07;
    }
    CATCH_INTERNAL_ERROR("Invalid multibyte utf-8 start byte encountered");
  }
  
  void hexEscapeChar(std::ostream &os, unsigned char c)
  {
    std::ios_base::fmtflags f(os.flags());
    os << "\\x" << std::uppercase << std::hex << std::setfill('0') << std::setw(2)
       << static_cast<int>(c);
    os.flags(f);
  }
  
  bool shouldNewline(XmlFormatting fmt)
  {
    return !!(static_cast<std::underlying_type<XmlFormatting>::type>(
        fmt & XmlFormatting::Newline));
  }
  
  bool shouldIndent(XmlFormatting fmt)
  {
    return !!(static_cast<std::underlying_type<XmlFormatting>::type>(
        fmt & XmlFormatting::Indent));
  }
  
  } // anonymous namespace
  
  XmlFormatting operator|(XmlFormatting lhs, XmlFormatting rhs)
  {
    return static_cast<XmlFormatting>(
        static_cast<std::underlying_type<XmlFormatting>::type>(lhs) |
        static_cast<std::underlying_type<XmlFormatting>::type>(rhs));
  }
  
  XmlFormatting operator&(XmlFormatting lhs, XmlFormatting rhs)
  {
    return static_cast<XmlFormatting>(
        static_cast<std::underlying_type<XmlFormatting>::type>(lhs) &
        static_cast<std::underlying_type<XmlFormatting>::type>(rhs));
  }
  
  XmlEncode::XmlEncode(std::string const &str, ForWhat forWhat)
      : m_str(str), m_forWhat(forWhat)
  {}
  
  void XmlEncode::encodeTo(std::ostream &os) const
  {
    // Apostrophe escaping not necessary if we always use " to write attributes
    // (see: http://www.w3.org/TR/xml/#syntax)
  
    for (std::size_t idx = 0; idx < m_str.size(); ++idx)
    {
      unsigned char c = m_str[idx];
      switch (c)
      {
      case '<':
        os << "&lt;";
        break;
      case '&':
        os << "&amp;";
        break;
  
      case '>':
        // See: http://www.w3.org/TR/xml/#syntax
        if (idx > 2 && m_str[idx - 1] == ']' && m_str[idx - 2] == ']')
          os << "&gt;";
        else
          os << c;
        break;
  
      case '\"':
        if (m_forWhat == ForAttributes)
          os << "&quot;";
        else
          os << c;
        break;
  
      default:
        // Check for control characters and invalid utf-8
  
        // Escape control characters in standard ascii
        // see
        // http://stackoverflow.com/questions/404107/why-are-control-characters-illegal-in-xml-1-0
        if (c < 0x09 || (c > 0x0D && c < 0x20) || c == 0x7F)
        {
          hexEscapeChar(os, c);
          break;
        }
  
        // Plain ASCII: Write it to stream
        if (c < 0x7F)
        {
          os << c;
          break;
        }
  
        // UTF-8 territory
        // Check if the encoding is valid and if it is not, hex escape bytes.
        // Important: We do not check the exact decoded values for validity, only
        // the encoding format First check that this bytes is a valid lead byte:
        // This means that it is not encoded as 1111 1XXX
        // Or as 10XX XXXX
        if (c < 0xC0 || c >= 0xF8)
        {
          hexEscapeChar(os, c);
          break;
        }
  
        auto encBytes = trailingBytes(c);
        // Are there enough bytes left to avoid accessing out-of-bounds memory?
        if (idx + encBytes - 1 >= m_str.size())
        {
          hexEscapeChar(os, c);
          break;
        }
        // The header is valid, check data
        // The next encBytes bytes must together be a valid utf-8
        // This means: bitpattern 10XX XXXX and the extracted value is sane (ish)
        bool valid     = true;
        uint32_t value = headerValue(c);
        for (std::size_t n = 1; n < encBytes; ++n)
        {
          unsigned char nc = m_str[idx + n];
          valid &= ((nc & 0xC0) == 0x80);
          value = (value << 6) | (nc & 0x3F);
        }
  
        if (
            // Wrong bit pattern of following bytes
            (!valid) ||
            // Overlong encodings
            (value < 0x80) || (0x80 <= value && value < 0x800 && encBytes > 2) ||
            (0x800 < value && value < 0x10000 && encBytes > 3) ||
            // Encoded value out of range
            (value >= 0x110000))
        {
          hexEscapeChar(os, c);
          break;
        }
  
        // If we got here, this is in fact a valid(ish) utf-8 sequence
        for (std::size_t n = 0; n < encBytes; ++n)
        {
          os << m_str[idx + n];
        }
        idx += encBytes - 1;
        break;
      }
    }
  }
  
  std::ostream &operator<<(std::ostream &os, XmlEncode const &xmlEncode)
  {
    xmlEncode.encodeTo(os);
    return os;
  }
  
  XmlWriter::ScopedElement::ScopedElement(XmlWriter *writer, XmlFormatting fmt)
      : m_writer(writer), m_fmt(fmt)
  {}
  
  XmlWriter::ScopedElement::ScopedElement(ScopedElement &&other) noexcept
      : m_writer(other.m_writer), m_fmt(other.m_fmt)
  {
    other.m_writer = nullptr;
    other.m_fmt    = XmlFormatting::None;
  }
  XmlWriter::ScopedElement &XmlWriter::ScopedElement::
  operator=(ScopedElement &&other) noexcept
  {
    if (m_writer)
    {
      m_writer->endElement();
    }
    m_writer       = other.m_writer;
    other.m_writer = nullptr;
    m_fmt          = other.m_fmt;
    other.m_fmt    = XmlFormatting::None;
    return *this;
  }
  
  XmlWriter::ScopedElement::~ScopedElement()
  {
    if (m_writer)
    {
      m_writer->endElement(m_fmt);
    }
  }
  
  XmlWriter::ScopedElement &
  XmlWriter::ScopedElement::writeText(std::string const &text, XmlFormatting fmt)
  {
    m_writer->writeText(text, fmt);
    return *this;
  }
  
  XmlWriter::XmlWriter(std::ostream &os) : m_os(os) { writeDeclaration(); }
  
  XmlWriter::~XmlWriter()
  {
    while (!m_tags.empty())
    {
      endElement();
    }
    newlineIfNecessary();
  }
  
  XmlWriter &XmlWriter::startElement(std::string const &name, XmlFormatting fmt)
  {
    ensureTagClosed();
    newlineIfNecessary();
    if (shouldIndent(fmt))
    {
      m_os << m_indent;
      m_indent += "  ";
    }
    m_os << '<' << name;
    m_tags.push_back(name);
    m_tagIsOpen = true;
    applyFormatting(fmt);
    return *this;
  }
  
  XmlWriter::ScopedElement
  XmlWriter::scopedElement(std::string const &name, XmlFormatting fmt)
  {
    ScopedElement scoped(this, fmt);
    startElement(name, fmt);
    return scoped;
  }
  
  XmlWriter &XmlWriter::endElement(XmlFormatting fmt)
  {
    m_indent = m_indent.substr(0, m_indent.size() - 2);
  
    if (m_tagIsOpen)
    {
      m_os << "/>";
      m_tagIsOpen = false;
    }
    else
    {
      newlineIfNecessary();
      if (shouldIndent(fmt))
      {
        m_os << m_indent;
      }
      m_os << "</" << m_tags.back() << ">";
    }
    m_os << std::flush;
    applyFormatting(fmt);
    m_tags.pop_back();
    return *this;
  }
  
  XmlWriter &
  XmlWriter::writeAttribute(std::string const &name, std::string const &attribute)
  {
    if (!name.empty() && !attribute.empty())
      m_os << ' ' << name << "=\""
           << XmlEncode(attribute, XmlEncode::ForAttributes) << '"';
    return *this;
  }
  
  XmlWriter &XmlWriter::writeAttribute(std::string const &name, bool attribute)
  {
    m_os << ' ' << name << "=\"" << (attribute ? "true" : "false") << '"';
    return *this;
  }
  
  XmlWriter &XmlWriter::writeText(std::string const &text, XmlFormatting fmt)
  {
    if (!text.empty())
    {
      bool tagWasOpen = m_tagIsOpen;
      ensureTagClosed();
      if (tagWasOpen && shouldIndent(fmt))
      {
        m_os << m_indent;
      }
      m_os << XmlEncode(text);
      applyFormatting(fmt);
    }
    return *this;
  }
  
  XmlWriter &XmlWriter::writeComment(std::string const &text, XmlFormatting fmt)
  {
    ensureTagClosed();
    if (shouldIndent(fmt))
    {
      m_os << m_indent;
    }
    m_os << "<!--" << text << "-->";
    applyFormatting(fmt);
    return *this;
  }
  
  void XmlWriter::writeStylesheetRef(std::string const &url)
  {
    m_os << "<?xml-stylesheet type=\"text/xsl\" href=\"" << url << "\"?>\n";
  }
  
  XmlWriter &XmlWriter::writeBlankLine()
  {
    ensureTagClosed();
    m_os << '\n';
    return *this;
  }
  
  void XmlWriter::ensureTagClosed()
  {
    if (m_tagIsOpen)
    {
      m_os << '>' << std::flush;
      newlineIfNecessary();
      m_tagIsOpen = false;
    }
  }
  
  void XmlWriter::applyFormatting(XmlFormatting fmt)
  {
    m_needsNewline = shouldNewline(fmt);
  }
  
  void XmlWriter::writeDeclaration()
  {
    m_os << "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n";
  }
  
  void XmlWriter::newlineIfNecessary()
  {
    if (m_needsNewline)
    {
      m_os << std::endl;
      m_needsNewline = false;
    }
  }
  } // namespace Catch
  // end catch_xmlwriter.cpp
  // start catch_reporter_bases.cpp
  
  #include <cassert>
  #include <cfloat>
  #include <cstdio>
  #include <cstring>
  #include <memory>
  
  namespace Catch
  {
  void prepareExpandedExpression(AssertionResult &result)
  {
    result.getExpandedExpression();
  }
  
  // Because formatting using c++ streams is stateful, drop down to C is required
  // Alternatively we could use stringstream, but its performance is... not good.
  std::string getFormattedDuration(double duration)
  {
    // Max exponent + 1 is required to represent the whole part
    // + 1 for decimal point
    // + 3 for the 3 decimal places
    // + 1 for null terminator
    const std::size_t maxDoubleSize = DBL_MAX_10_EXP + 1 + 1 + 3 + 1;
    char buffer[maxDoubleSize];
  
    // Save previous errno, to prevent sprintf from overwriting it
    ErrnoGuard guard;
  #ifdef _MSC_VER
    sprintf_s(buffer, "%.3f", duration);
  #else
    std::sprintf(buffer, "%.3f", duration);
  #endif
    return std::string(buffer);
  }
  
  std::string serializeFilters(std::vector<std::string> const &container)
  {
    ReusableStringStream oss;
    bool first = true;
    for (auto &&filter : container)
    {
      if (!first)
        oss << ' ';
      else
        first = false;
  
      oss << filter;
    }
    return oss.str();
  }
  
  TestEventListenerBase::TestEventListenerBase(ReporterConfig const &_config)
      : StreamingReporterBase(_config)
  {}
  
  std::set<Verbosity> TestEventListenerBase::getSupportedVerbosities()
  {
    return {Verbosity::Quiet, Verbosity::Normal, Verbosity::High};
  }
  
  void TestEventListenerBase::assertionStarting(AssertionInfo const &) {}
  
  bool TestEventListenerBase::assertionEnded(AssertionStats const &)
  {
    return false;
  }
  
  } // end namespace Catch
  // end catch_reporter_bases.cpp
  // start catch_reporter_compact.cpp
  
  namespace
  {
  #ifdef CATCH_PLATFORM_MAC
  const char *failedString() { return "FAILED"; }
  const char *passedString() { return "PASSED"; }
  #else
  const char *failedString() { return "failed"; }
  const char *passedString() { return "passed"; }
  #endif
  
  // Colour::LightGrey
  Catch::Colour::Code dimColour() { return Catch::Colour::FileName; }
  
  std::string bothOrAll(std::size_t count)
  {
    return count == 1 ? std::string() : count == 2 ? "both " : "all ";
  }
  
  } // namespace
  
  namespace Catch
  {
  namespace
  {
  // Colour, message variants:
  // - white: No tests ran.
  // -   red: Failed [both/all] N test cases, failed [both/all] M assertions.
  // - white: Passed [both/all] N test cases (no assertions).
  // -   red: Failed N tests cases, failed M assertions.
  // - green: Passed [both/all] N tests cases with M assertions.
  void printTotals(std::ostream &out, const Totals &totals)
  {
    if (totals.testCases.total() == 0)
    {
      out << "No tests ran.";
    }
    else if (totals.testCases.failed == totals.testCases.total())
    {
      Colour colour(Colour::ResultError);
      const std::string qualify_assertions_failed =
          totals.assertions.failed == totals.assertions.total()
              ? bothOrAll(totals.assertions.failed)
              : std::string();
      out << "Failed " << bothOrAll(totals.testCases.failed)
          << pluralise(totals.testCases.failed, "test case")
          << ", "
             "failed "
          << qualify_assertions_failed
          << pluralise(totals.assertions.failed, "assertion") << '.';
    }
    else if (totals.assertions.total() == 0)
    {
      out << "Passed " << bothOrAll(totals.testCases.total())
          << pluralise(totals.testCases.total(), "test case")
          << " (no assertions).";
    }
    else if (totals.assertions.failed)
    {
      Colour colour(Colour::ResultError);
      out << "Failed " << pluralise(totals.testCases.failed, "test case")
          << ", "
             "failed "
          << pluralise(totals.assertions.failed, "assertion") << '.';
    }
    else
    {
      Colour colour(Colour::ResultSuccess);
      out << "Passed " << bothOrAll(totals.testCases.passed)
          << pluralise(totals.testCases.passed, "test case") << " with "
          << pluralise(totals.assertions.passed, "assertion") << '.';
    }
  }
  
  // Implementation of CompactReporter formatting
  class AssertionPrinter
  {
  public:
    AssertionPrinter &operator=(AssertionPrinter const &) = delete;
    AssertionPrinter(AssertionPrinter const &)            = delete;
    AssertionPrinter(std::ostream &_stream, AssertionStats const &_stats,
                     bool _printInfoMessages)
        : stream(_stream), result(_stats.assertionResult),
          messages(_stats.infoMessages), itMessage(_stats.infoMessages.begin()),
          printInfoMessages(_printInfoMessages)
    {}
  
    void print()
    {
      printSourceInfo();
  
      itMessage = messages.begin();
  
      switch (result.getResultType())
      {
      case ResultWas::Ok:
        printResultType(Colour::ResultSuccess, passedString());
        printOriginalExpression();
        printReconstructedExpression();
        if (!result.hasExpression())
          printRemainingMessages(Colour::None);
        else
          printRemainingMessages();
        break;
      case ResultWas::ExpressionFailed:
        if (result.isOk())
          printResultType(Colour::ResultSuccess,
                          failedString() + std::string(" - but was ok"));
        else
          printResultType(Colour::Error, failedString());
        printOriginalExpression();
        printReconstructedExpression();
        printRemainingMessages();
        break;
      case ResultWas::ThrewException:
        printResultType(Colour::Error, failedString());
        printIssue("unexpected exception with message:");
        printMessage();
        printExpressionWas();
        printRemainingMessages();
        break;
      case ResultWas::FatalErrorCondition:
        printResultType(Colour::Error, failedString());
        printIssue("fatal error condition with message:");
        printMessage();
        printExpressionWas();
        printRemainingMessages();
        break;
      case ResultWas::DidntThrowException:
        printResultType(Colour::Error, failedString());
        printIssue("expected exception, got none");
        printExpressionWas();
        printRemainingMessages();
        break;
      case ResultWas::Info:
        printResultType(Colour::None, "info");
        printMessage();
        printRemainingMessages();
        break;
      case ResultWas::Warning:
        printResultType(Colour::None, "warning");
        printMessage();
        printRemainingMessages();
        break;
      case ResultWas::ExplicitFailure:
        printResultType(Colour::Error, failedString());
        printIssue("explicitly");
        printRemainingMessages(Colour::None);
        break;
        // These cases are here to prevent compiler warnings
      case ResultWas::Unknown:
      case ResultWas::FailureBit:
      case ResultWas::Exception:
        printResultType(Colour::Error, "** internal error **");
        break;
      }
    }
  
  private:
    void printSourceInfo() const
    {
      Colour colourGuard(Colour::FileName);
      stream << result.getSourceInfo() << ':';
    }
  
    void printResultType(Colour::Code colour, std::string const &passOrFail) const
    {
      if (!passOrFail.empty())
      {
        {
          Colour colourGuard(colour);
          stream << ' ' << passOrFail;
        }
        stream << ':';
      }
    }
  
    void printIssue(std::string const &issue) const { stream << ' ' << issue; }
  
    void printExpressionWas()
    {
      if (result.hasExpression())
      {
        stream << ';';
        {
          Colour colour(dimColour());
          stream << " expression was:";
        }
        printOriginalExpression();
      }
    }
  
    void printOriginalExpression() const
    {
      if (result.hasExpression())
      {
        stream << ' ' << result.getExpression();
      }
    }
  
    void printReconstructedExpression() const
    {
      if (result.hasExpandedExpression())
      {
        {
          Colour colour(dimColour());
          stream << " for: ";
        }
        stream << result.getExpandedExpression();
      }
    }
  
    void printMessage()
    {
      if (itMessage != messages.end())
      {
        stream << " '" << itMessage->message << '\'';
        ++itMessage;
      }
    }
  
    void printRemainingMessages(Colour::Code colour = dimColour())
    {
      if (itMessage == messages.end())
        return;
  
      const auto itEnd = messages.cend();
      const auto N = static_cast<std::size_t>(std::distance(itMessage, itEnd));
  
      {
        Colour colourGuard(colour);
        stream << " with " << pluralise(N, "message") << ':';
      }
  
      while (itMessage != itEnd)
      {
        // If this assertion is a warning ignore any INFO messages
        if (printInfoMessages || itMessage->type != ResultWas::Info)
        {
          printMessage();
          if (itMessage != itEnd)
          {
            Colour colourGuard(dimColour());
            stream << " and";
          }
          continue;
        }
        ++itMessage;
      }
    }
  
  private:
    std::ostream &stream;
    AssertionResult const &result;
    std::vector<MessageInfo> messages;
    std::vector<MessageInfo>::const_iterator itMessage;
    bool printInfoMessages;
  };
  
  } // namespace
  
  std::string CompactReporter::getDescription()
  {
    return "Reports test results on a single line, suitable for IDEs";
  }
  
  ReporterPreferences CompactReporter::getPreferences() const
  {
    return m_reporterPrefs;
  }
  
  void CompactReporter::noMatchingTestCases(std::string const &spec)
  {
    stream << "No test cases matched '" << spec << '\'' << std::endl;
  }
  
  void CompactReporter::assertionStarting(AssertionInfo const &) {}
  
  bool CompactReporter::assertionEnded(AssertionStats const &_assertionStats)
  {
    AssertionResult const &result = _assertionStats.assertionResult;
  
    bool printInfoMessages = true;
  
    // Drop out if result was successful and we're not printing those
    if (!m_config->includeSuccessfulResults() && result.isOk())
    {
      if (result.getResultType() != ResultWas::Warning)
        return false;
      printInfoMessages = false;
    }
  
    AssertionPrinter printer(stream, _assertionStats, printInfoMessages);
    printer.print();
  
    stream << std::endl;
    return true;
  }
  
  void CompactReporter::sectionEnded(SectionStats const &_sectionStats)
  {
    if (m_config->showDurations() == ShowDurations::Always)
    {
      stream << getFormattedDuration(_sectionStats.durationInSeconds)
             << " s: " << _sectionStats.sectionInfo.name << std::endl;
    }
  }
  
  void CompactReporter::testRunEnded(TestRunStats const &_testRunStats)
  {
    printTotals(stream, _testRunStats.totals);
    stream << '\n' << std::endl;
    StreamingReporterBase::testRunEnded(_testRunStats);
  }
  
  CompactReporter::~CompactReporter() {}
  
  CATCH_REGISTER_REPORTER("compact", CompactReporter)
  
  } // end namespace Catch
  // end catch_reporter_compact.cpp
  // start catch_reporter_console.cpp
  
  #include <cfloat>
  #include <cstdio>
  
  #if defined(_MSC_VER)
  #pragma warning(push)
  #pragma warning( \
      disable : 4061) // Not all labels are EXPLICITLY handled in switch
    // Note that 4062 (not all labels are handled and default is missing) is
    // enabled
  #endif
  
  #if defined(__clang__)
  #pragma clang diagnostic push
  // For simplicity, benchmarking-only helpers are always enabled
  #pragma clang diagnostic ignored "-Wunused-function"
  #endif
  
  namespace Catch
  {
  namespace
  {
  // Formatter impl for ConsoleReporter
  class ConsoleAssertionPrinter
  {
  public:
    ConsoleAssertionPrinter &operator=(ConsoleAssertionPrinter const &) = delete;
    ConsoleAssertionPrinter(ConsoleAssertionPrinter const &)            = delete;
    ConsoleAssertionPrinter(std::ostream &_stream, AssertionStats const &_stats,
                            bool _printInfoMessages)
        : stream(_stream), stats(_stats), result(_stats.assertionResult),
          colour(Colour::None), message(result.getMessage()),
          messages(_stats.infoMessages), printInfoMessages(_printInfoMessages)
    {
      switch (result.getResultType())
      {
      case ResultWas::Ok:
        colour     = Colour::Success;
        passOrFail = "PASSED";
        // if( result.hasMessage() )
        if (_stats.infoMessages.size() == 1)
          messageLabel = "with message";
        if (_stats.infoMessages.size() > 1)
          messageLabel = "with messages";
        break;
      case ResultWas::ExpressionFailed:
        if (result.isOk())
        {
          colour     = Colour::Success;
          passOrFail = "FAILED - but was ok";
        }
        else
        {
          colour     = Colour::Error;
          passOrFail = "FAILED";
        }
        if (_stats.infoMessages.size() == 1)
          messageLabel = "with message";
        if (_stats.infoMessages.size() > 1)
          messageLabel = "with messages";
        break;
      case ResultWas::ThrewException:
        colour       = Colour::Error;
        passOrFail   = "FAILED";
        messageLabel = "due to unexpected exception with ";
        if (_stats.infoMessages.size() == 1)
          messageLabel += "message";
        if (_stats.infoMessages.size() > 1)
          messageLabel += "messages";
        break;
      case ResultWas::FatalErrorCondition:
        colour       = Colour::Error;
        passOrFail   = "FAILED";
        messageLabel = "due to a fatal error condition";
        break;
      case ResultWas::DidntThrowException:
        colour       = Colour::Error;
        passOrFail   = "FAILED";
        messageLabel = "because no exception was thrown where one was expected";
        break;
      case ResultWas::Info:
        messageLabel = "info";
        break;
      case ResultWas::Warning:
        messageLabel = "warning";
        break;
      case ResultWas::ExplicitFailure:
        passOrFail = "FAILED";
        colour     = Colour::Error;
        if (_stats.infoMessages.size() == 1)
          messageLabel = "explicitly with message";
        if (_stats.infoMessages.size() > 1)
          messageLabel = "explicitly with messages";
        break;
        // These cases are here to prevent compiler warnings
      case ResultWas::Unknown:
      case ResultWas::FailureBit:
      case ResultWas::Exception:
        passOrFail = "** internal error **";
        colour     = Colour::Error;
        break;
      }
    }
  
    void print() const
    {
      printSourceInfo();
      if (stats.totals.assertions.total() > 0)
      {
        printResultType();
        printOriginalExpression();
        printReconstructedExpression();
      }
      else
      {
        stream << '\n';
      }
      printMessage();
    }
  
  private:
    void printResultType() const
    {
      if (!passOrFail.empty())
      {
        Colour colourGuard(colour);
        stream << passOrFail << ":\n";
      }
    }
    void printOriginalExpression() const
    {
      if (result.hasExpression())
      {
        Colour colourGuard(Colour::OriginalExpression);
        stream << "  ";
        stream << result.getExpressionInMacro();
        stream << '\n';
      }
    }
    void printReconstructedExpression() const
    {
      if (result.hasExpandedExpression())
      {
        stream << "with expansion:\n";
        Colour colourGuard(Colour::ReconstructedExpression);
        stream << Column(result.getExpandedExpression()).indent(2) << '\n';
      }
    }
    void printMessage() const
    {
      if (!messageLabel.empty())
        stream << messageLabel << ':' << '\n';
      for (auto const &msg : messages)
      {
        // If this assertion is a warning ignore any INFO messages
        if (printInfoMessages || msg.type != ResultWas::Info)
          stream << Column(msg.message).indent(2) << '\n';
      }
    }
    void printSourceInfo() const
    {
      Colour colourGuard(Colour::FileName);
      stream << result.getSourceInfo() << ": ";
    }
  
    std::ostream &stream;
    AssertionStats const &stats;
    AssertionResult const &result;
    Colour::Code colour;
    std::string passOrFail;
    std::string messageLabel;
    std::string message;
    std::vector<MessageInfo> messages;
    bool printInfoMessages;
  };
  
  std::size_t makeRatio(std::size_t number, std::size_t total)
  {
    std::size_t ratio =
        total > 0 ? CATCH_CONFIG_CONSOLE_WIDTH * number / total : 0;
    return (ratio == 0 && number > 0) ? 1 : ratio;
  }
  
  std::size_t &findMax(std::size_t &i, std::size_t &j, std::size_t &k)
  {
    if (i > j && i > k)
      return i;
    else if (j > k)
      return j;
    else
      return k;
  }
  
  struct ColumnInfo
  {
    enum Justification
    {
      Left,
      Right
    };
    std::string name;
    int width;
    Justification justification;
  };
  struct ColumnBreak
  {};
  struct RowBreak
  {};
  
  class Duration
  {
    enum class Unit
    {
      Auto,
      Nanoseconds,
      Microseconds,
      Milliseconds,
      Seconds,
      Minutes
    };
    static const uint64_t s_nanosecondsInAMicrosecond = 1000;
    static const uint64_t s_nanosecondsInAMillisecond =
        1000 * s_nanosecondsInAMicrosecond;
    static const uint64_t s_nanosecondsInASecond =
        1000 * s_nanosecondsInAMillisecond;
    static const uint64_t s_nanosecondsInAMinute = 60 * s_nanosecondsInASecond;
  
    double m_inNanoseconds;
    Unit m_units;
  
  public:
    explicit Duration(double inNanoseconds, Unit units = Unit::Auto)
        : m_inNanoseconds(inNanoseconds), m_units(units)
    {
      if (m_units == Unit::Auto)
      {
        if (m_inNanoseconds < s_nanosecondsInAMicrosecond)
          m_units = Unit::Nanoseconds;
        else if (m_inNanoseconds < s_nanosecondsInAMillisecond)
          m_units = Unit::Microseconds;
        else if (m_inNanoseconds < s_nanosecondsInASecond)
          m_units = Unit::Milliseconds;
        else if (m_inNanoseconds < s_nanosecondsInAMinute)
          m_units = Unit::Seconds;
        else
          m_units = Unit::Minutes;
      }
    }
  
    auto value() const -> double
    {
      switch (m_units)
      {
      case Unit::Microseconds:
        return m_inNanoseconds / static_cast<double>(s_nanosecondsInAMicrosecond);
      case Unit::Milliseconds:
        return m_inNanoseconds / static_cast<double>(s_nanosecondsInAMillisecond);
      case Unit::Seconds:
        return m_inNanoseconds / static_cast<double>(s_nanosecondsInASecond);
      case Unit::Minutes:
        return m_inNanoseconds / static_cast<double>(s_nanosecondsInAMinute);
      default:
        return m_inNanoseconds;
      }
    }
    auto unitsAsString() const -> std::string
    {
      switch (m_units)
      {
      case Unit::Nanoseconds:
        return "ns";
      case Unit::Microseconds:
        return "us";
      case Unit::Milliseconds:
        return "ms";
      case Unit::Seconds:
        return "s";
      case Unit::Minutes:
        return "m";
      default:
        return "** internal error **";
      }
    }
    friend auto operator<<(std::ostream &os, Duration const &duration)
        -> std::ostream &
    {
      return os << duration.value() << ' ' << duration.unitsAsString();
    }
  };
  } // namespace
  
  class TablePrinter
  {
    std::ostream &m_os;
    std::vector<ColumnInfo> m_columnInfos;
    std::ostringstream m_oss;
    int m_currentColumn = -1;
    bool m_isOpen       = false;
  
  public:
    TablePrinter(std::ostream &os, std::vector<ColumnInfo> columnInfos)
        : m_os(os), m_columnInfos(std::move(columnInfos))
    {}
  
    auto columnInfos() const -> std::vector<ColumnInfo> const &
    {
      return m_columnInfos;
    }
  
    void open()
    {
      if (!m_isOpen)
      {
        m_isOpen = true;
        *this << RowBreak();
  
        Columns headerCols;
        Spacer spacer(2);
        for (auto const &info : m_columnInfos)
        {
          headerCols +=
              Column(info.name).width(static_cast<std::size_t>(info.width - 2));
          headerCols += spacer;
        }
        m_os << headerCols << '\n';
  
        m_os << Catch::getLineOfChars<'-'>() << '\n';
      }
    }
    void close()
    {
      if (m_isOpen)
      {
        *this << RowBreak();
        m_os << std::endl;
        m_isOpen = false;
      }
    }
  
    template<typename T>
    friend TablePrinter &operator<<(TablePrinter &tp, T const &value)
    {
      tp.m_oss << value;
      return tp;
    }
  
    friend TablePrinter &operator<<(TablePrinter &tp, ColumnBreak)
    {
      auto colStr        = tp.m_oss.str();
      const auto strSize = colStr.size();
      tp.m_oss.str("");
      tp.open();
      if (tp.m_currentColumn == static_cast<int>(tp.m_columnInfos.size() - 1))
      {
        tp.m_currentColumn = -1;
        tp.m_os << '\n';
      }
      tp.m_currentColumn++;
  
      auto colInfo = tp.m_columnInfos[tp.m_currentColumn];
      auto padding = (strSize + 1 < static_cast<std::size_t>(colInfo.width))
                         ? std::string(colInfo.width - (strSize + 1), ' ')
                         : std::string();
      if (colInfo.justification == ColumnInfo::Left)
        tp.m_os << colStr << padding << ' ';
      else
        tp.m_os << padding << colStr << ' ';
      return tp;
    }
  
    friend TablePrinter &operator<<(TablePrinter &tp, RowBreak)
    {
      if (tp.m_currentColumn > 0)
      {
        tp.m_os << '\n';
        tp.m_currentColumn = -1;
      }
      return tp;
    }
  };
  
  ConsoleReporter::ConsoleReporter(ReporterConfig const &config)
      : StreamingReporterBase(config),
        m_tablePrinter(new TablePrinter(
            config.stream(), [&config]() -> std::vector<ColumnInfo> {
              if (config.fullConfig()->benchmarkNoAnalysis())
              {
                return {{"benchmark name", CATCH_CONFIG_CONSOLE_WIDTH - 43,
                         ColumnInfo::Left},
                        {"     samples", 14, ColumnInfo::Right},
                        {"  iterations", 14, ColumnInfo::Right},
                        {"        mean", 14, ColumnInfo::Right}};
              }
              else
              {
                return {
                    {"benchmark name", CATCH_CONFIG_CONSOLE_WIDTH - 32,
                     ColumnInfo::Left},
                    {"samples      mean       std dev", 14, ColumnInfo::Right},
                    {"iterations   low mean   low std dev", 14,
                     ColumnInfo::Right},
                    {"estimated    high mean  high std dev", 14,
                     ColumnInfo::Right}};
              }
            }()))
  {}
  ConsoleReporter::~ConsoleReporter() = default;
  
  std::string ConsoleReporter::getDescription()
  {
    return "Reports test results as plain lines of text";
  }
  
  void ConsoleReporter::noMatchingTestCases(std::string const &spec)
  {
    stream << "No test cases matched '" << spec << '\'' << std::endl;
  }
  
  void ConsoleReporter::reportInvalidArguments(std::string const &arg)
  {
    stream << "Invalid Filter: " << arg << std::endl;
  }
  
  void ConsoleReporter::assertionStarting(AssertionInfo const &) {}
  
  bool ConsoleReporter::assertionEnded(AssertionStats const &_assertionStats)
  {
    AssertionResult const &result = _assertionStats.assertionResult;
  
    bool includeResults = m_config->includeSuccessfulResults() || !result.isOk();
  
    // Drop out if result was successful but we're not printing them.
    if (!includeResults && result.getResultType() != ResultWas::Warning)
      return false;
  
    lazyPrint();
  
    ConsoleAssertionPrinter printer(stream, _assertionStats, includeResults);
    printer.print();
    stream << std::endl;
    return true;
  }
  
  void ConsoleReporter::sectionStarting(SectionInfo const &_sectionInfo)
  {
    m_tablePrinter->close();
    m_headerPrinted = false;
    StreamingReporterBase::sectionStarting(_sectionInfo);
  }
  void ConsoleReporter::sectionEnded(SectionStats const &_sectionStats)
  {
    m_tablePrinter->close();
    if (_sectionStats.missingAssertions)
    {
      lazyPrint();
      Colour colour(Colour::ResultError);
      if (m_sectionStack.size() > 1)
        stream << "\nNo assertions in section";
      else
        stream << "\nNo assertions in test case";
      stream << " '" << _sectionStats.sectionInfo.name << "'\n" << std::endl;
    }
    if (m_config->showDurations() == ShowDurations::Always)
    {
      stream << getFormattedDuration(_sectionStats.durationInSeconds)
             << " s: " << _sectionStats.sectionInfo.name << std::endl;
    }
    if (m_headerPrinted)
    {
      m_headerPrinted = false;
    }
    StreamingReporterBase::sectionEnded(_sectionStats);
  }
  
  #if defined(CATCH_CONFIG_ENABLE_BENCHMARKING)
  void ConsoleReporter::benchmarkPreparing(std::string const &name)
  {
    lazyPrintWithoutClosingBenchmarkTable();
  
    auto nameCol = Column(name).width(
        static_cast<std::size_t>(m_tablePrinter->columnInfos()[0].width - 2));
  
    bool firstLine = true;
    for (auto line : nameCol)
    {
      if (!firstLine)
        (*m_tablePrinter) << ColumnBreak() << ColumnBreak() << ColumnBreak();
      else
        firstLine = false;
  
      (*m_tablePrinter) << line << ColumnBreak();
    }
  }
  
  void ConsoleReporter::benchmarkStarting(BenchmarkInfo const &info)
  {
    (*m_tablePrinter) << info.samples << ColumnBreak() << info.iterations
                      << ColumnBreak();
    if (!m_config->benchmarkNoAnalysis())
      (*m_tablePrinter) << Duration(info.estimatedDuration) << ColumnBreak();
  }
  void ConsoleReporter::benchmarkEnded(BenchmarkStats<> const &stats)
  {
    if (m_config->benchmarkNoAnalysis())
    {
      (*m_tablePrinter) << Duration(stats.mean.point.count()) << ColumnBreak();
    }
    else
    {
      (*m_tablePrinter) << ColumnBreak() << Duration(stats.mean.point.count())
                        << ColumnBreak()
                        << Duration(stats.mean.lower_bound.count())
                        << ColumnBreak()
                        << Duration(stats.mean.upper_bound.count())
                        << ColumnBreak() << ColumnBreak()
                        << Duration(stats.standardDeviation.point.count())
                        << ColumnBreak()
                        << Duration(stats.standardDeviation.lower_bound.count())
                        << ColumnBreak()
                        << Duration(stats.standardDeviation.upper_bound.count())
                        << ColumnBreak() << ColumnBreak() << ColumnBreak()
                        << ColumnBreak() << ColumnBreak();
    }
  }
  
  void ConsoleReporter::benchmarkFailed(std::string const &error)
  {
    Colour colour(Colour::Red);
    (*m_tablePrinter) << "Benchmark failed (" << error << ')' << ColumnBreak()
                      << RowBreak();
  }
  #endif // CATCH_CONFIG_ENABLE_BENCHMARKING
  
  void ConsoleReporter::testCaseEnded(TestCaseStats const &_testCaseStats)
  {
    m_tablePrinter->close();
    StreamingReporterBase::testCaseEnded(_testCaseStats);
    m_headerPrinted = false;
  }
  void ConsoleReporter::testGroupEnded(TestGroupStats const &_testGroupStats)
  {
    if (currentGroupInfo.used)
    {
      printSummaryDivider();
      stream << "Summary for group '" << _testGroupStats.groupInfo.name << "':\n";
      printTotals(_testGroupStats.totals);
      stream << '\n' << std::endl;
    }
    StreamingReporterBase::testGroupEnded(_testGroupStats);
  }
  void ConsoleReporter::testRunEnded(TestRunStats const &_testRunStats)
  {
    printTotalsDivider(_testRunStats.totals);
    printTotals(_testRunStats.totals);
    stream << std::endl;
    StreamingReporterBase::testRunEnded(_testRunStats);
  }
  void ConsoleReporter::testRunStarting(TestRunInfo const &_testInfo)
  {
    StreamingReporterBase::testRunStarting(_testInfo);
    printTestFilters();
  }
  
  void ConsoleReporter::lazyPrint()
  {
    m_tablePrinter->close();
    lazyPrintWithoutClosingBenchmarkTable();
  }
  
  void ConsoleReporter::lazyPrintWithoutClosingBenchmarkTable()
  {
    if (!currentTestRunInfo.used)
      lazyPrintRunInfo();
    if (!currentGroupInfo.used)
      lazyPrintGroupInfo();
  
    if (!m_headerPrinted)
    {
      printTestCaseAndSectionHeader();
      m_headerPrinted = true;
    }
  }
  void ConsoleReporter::lazyPrintRunInfo()
  {
    stream << '\n' << getLineOfChars<'~'>() << '\n';
    Colour colour(Colour::SecondaryText);
    stream << currentTestRunInfo->name << " is a Catch v" << libraryVersion()
           << " host application.\n"
           << "Run with -? for options\n\n";
  
    if (m_config->rngSeed() != 0)
      stream << "Randomness seeded to: " << m_config->rngSeed() << "\n\n";
  
    currentTestRunInfo.used = true;
  }
  void ConsoleReporter::lazyPrintGroupInfo()
  {
    if (!currentGroupInfo->name.empty() && currentGroupInfo->groupsCounts > 1)
    {
      printClosedHeader("Group: " + currentGroupInfo->name);
      currentGroupInfo.used = true;
    }
  }
  void ConsoleReporter::printTestCaseAndSectionHeader()
  {
    assert(!m_sectionStack.empty());
    printOpenHeader(currentTestCaseInfo->name);
  
    if (m_sectionStack.size() > 1)
    {
      Colour colourGuard(Colour::Headers);
  
      auto it   = m_sectionStack.begin() + 1, // Skip first section (test case)
          itEnd = m_sectionStack.end();
      for (; it != itEnd; ++it)
        printHeaderString(it->name, 2);
    }
  
    SourceLineInfo lineInfo = m_sectionStack.back().lineInfo;
  
    stream << getLineOfChars<'-'>() << '\n';
    Colour colourGuard(Colour::FileName);
    stream << lineInfo << '\n';
    stream << getLineOfChars<'.'>() << '\n' << std::endl;
  }
  
  void ConsoleReporter::printClosedHeader(std::string const &_name)
  {
    printOpenHeader(_name);
    stream << getLineOfChars<'.'>() << '\n';
  }
  void ConsoleReporter::printOpenHeader(std::string const &_name)
  {
    stream << getLineOfChars<'-'>() << '\n';
    {
      Colour colourGuard(Colour::Headers);
      printHeaderString(_name);
    }
  }
  
  // if string has a : in first line will set indent to follow it on
  // subsequent lines
  void ConsoleReporter::printHeaderString(std::string const &_string,
                                          std::size_t indent)
  {
    std::size_t i = _string.find(": ");
    if (i != std::string::npos)
      i += 2;
    else
      i = 0;
    stream << Column(_string).indent(indent + i).initialIndent(indent) << '\n';
  }
  
  struct SummaryColumn
  {
    SummaryColumn(std::string _label, Colour::Code _colour)
        : label(std::move(_label)), colour(_colour)
    {}
    SummaryColumn addRow(std::size_t count)
    {
      ReusableStringStream rss;
      rss << count;
      std::string row = rss.str();
      for (auto &oldRow : rows)
      {
        while (oldRow.size() < row.size())
          oldRow = ' ' + oldRow;
        while (oldRow.size() > row.size())
          row = ' ' + row;
      }
      rows.push_back(row);
      return *this;
    }
  
    std::string label;
    Colour::Code colour;
    std::vector<std::string> rows;
  };
  
  void ConsoleReporter::printTotals(Totals const &totals)
  {
    if (totals.testCases.total() == 0)
    {
      stream << Colour(Colour::Warning) << "No tests ran\n";
    }
    else if (totals.assertions.total() > 0 && totals.testCases.allPassed())
    {
      stream << Colour(Colour::ResultSuccess) << "All tests passed";
      stream << " (" << pluralise(totals.assertions.passed, "assertion") << " in "
             << pluralise(totals.testCases.passed, "test case") << ')' << '\n';
    }
    else
    {
      std::vector<SummaryColumn> columns;
      columns.push_back(SummaryColumn("", Colour::None)
                            .addRow(totals.testCases.total())
                            .addRow(totals.assertions.total()));
      columns.push_back(SummaryColumn("passed", Colour::Success)
                            .addRow(totals.testCases.passed)
                            .addRow(totals.assertions.passed));
      columns.push_back(SummaryColumn("failed", Colour::ResultError)
                            .addRow(totals.testCases.failed)
                            .addRow(totals.assertions.failed));
      columns.push_back(
          SummaryColumn("failed as expected", Colour::ResultExpectedFailure)
              .addRow(totals.testCases.failedButOk)
              .addRow(totals.assertions.failedButOk));
  
      printSummaryRow("test cases", columns, 0);
      printSummaryRow("assertions", columns, 1);
    }
  }
  void ConsoleReporter::printSummaryRow(std::string const &label,
                                        std::vector<SummaryColumn> const &cols,
                                        std::size_t row)
  {
    for (auto col : cols)
    {
      std::string value = col.rows[row];
      if (col.label.empty())
      {
        stream << label << ": ";
        if (value != "0")
          stream << value;
        else
          stream << Colour(Colour::Warning) << "- none -";
      }
      else if (value != "0")
      {
        stream << Colour(Colour::LightGrey) << " | ";
        stream << Colour(col.colour) << value << ' ' << col.label;
      }
    }
    stream << '\n';
  }
  
  void ConsoleReporter::printTotalsDivider(Totals const &totals)
  {
    if (totals.testCases.total() > 0)
    {
      std::size_t failedRatio =
          makeRatio(totals.testCases.failed, totals.testCases.total());
      std::size_t failedButOkRatio =
          makeRatio(totals.testCases.failedButOk, totals.testCases.total());
      std::size_t passedRatio =
          makeRatio(totals.testCases.passed, totals.testCases.total());
      while (failedRatio + failedButOkRatio + passedRatio <
             CATCH_CONFIG_CONSOLE_WIDTH - 1)
        findMax(failedRatio, failedButOkRatio, passedRatio)++;
      while (failedRatio + failedButOkRatio + passedRatio >
             CATCH_CONFIG_CONSOLE_WIDTH - 1)
        findMax(failedRatio, failedButOkRatio, passedRatio)--;
  
      stream << Colour(Colour::Error) << std::string(failedRatio, '=');
      stream << Colour(Colour::ResultExpectedFailure)
             << std::string(failedButOkRatio, '=');
      if (totals.testCases.allPassed())
        stream << Colour(Colour::ResultSuccess) << std::string(passedRatio, '=');
      else
        stream << Colour(Colour::Success) << std::string(passedRatio, '=');
    }
    else
    {
      stream << Colour(Colour::Warning)
             << std::string(CATCH_CONFIG_CONSOLE_WIDTH - 1, '=');
    }
    stream << '\n';
  }
  void ConsoleReporter::printSummaryDivider()
  {
    stream << getLineOfChars<'-'>() << '\n';
  }
  
  void ConsoleReporter::printTestFilters()
  {
    if (m_config->testSpec().hasFilters())
    {
      Colour guard(Colour::BrightYellow);
      stream << "Filters: " << serializeFilters(m_config->getTestsOrTags())
             << '\n';
    }
  }
  
  CATCH_REGISTER_REPORTER("console", ConsoleReporter)
  
  } // end namespace Catch
  
  #if defined(_MSC_VER)
  #pragma warning(pop)
  #endif
  
  #if defined(__clang__)
  #pragma clang diagnostic pop
  #endif
  // end catch_reporter_console.cpp
  // start catch_reporter_junit.cpp
  
  #include <algorithm>
  #include <cassert>
  #include <ctime>
  #include <sstream>
  
  namespace Catch
  {
  namespace
  {
  std::string getCurrentTimestamp()
  {
    // Beware, this is not reentrant because of backward compatibility issues
    // Also, UTC only, again because of backward compatibility (%z is C++11)
    time_t rawtime;
    std::time(&rawtime);
    auto const timeStampSize = sizeof("2017-01-16T17:06:45Z");
  
  #ifdef _MSC_VER
    std::tm timeInfo = {};
    gmtime_s(&timeInfo, &rawtime);
  #else
    std::tm *timeInfo;
    timeInfo = std::gmtime(&rawtime);
  #endif
  
    char timeStamp[timeStampSize];
    const char *const fmt = "%Y-%m-%dT%H:%M:%SZ";
  
  #ifdef _MSC_VER
    std::strftime(timeStamp, timeStampSize, fmt, &timeInfo);
  #else
    std::strftime(timeStamp, timeStampSize, fmt, timeInfo);
  #endif
    return std::string(timeStamp);
  }
  
  std::string fileNameTag(const std::vector<std::string> &tags)
  {
    auto it = std::find_if(begin(tags), end(tags), [](std::string const &tag) {
      return tag.front() == '#';
    });
    if (it != tags.end())
      return it->substr(1);
    return std::string();
  }
  } // anonymous namespace
  
  JunitReporter::JunitReporter(ReporterConfig const &_config)
      : CumulativeReporterBase(_config), xml(_config.stream())
  {
    m_reporterPrefs.shouldRedirectStdOut      = true;
    m_reporterPrefs.shouldReportAllAssertions = true;
  }
  
  JunitReporter::~JunitReporter() {}
  
  std::string JunitReporter::getDescription()
  {
    return "Reports test results in an XML format that looks like Ant's "
           "junitreport target";
  }
  
  void JunitReporter::noMatchingTestCases(std::string const & /*spec*/) {}
  
  void JunitReporter::testRunStarting(TestRunInfo const &runInfo)
  {
    CumulativeReporterBase::testRunStarting(runInfo);
    xml.startElement("testsuites");
  }
  
  void JunitReporter::testGroupStarting(GroupInfo const &groupInfo)
  {
    suiteTimer.start();
    stdOutForSuite.clear();
    stdErrForSuite.clear();
    unexpectedExceptions = 0;
    CumulativeReporterBase::testGroupStarting(groupInfo);
  }
  
  void JunitReporter::testCaseStarting(TestCaseInfo const &testCaseInfo)
  {
    m_okToFail = testCaseInfo.okToFail();
  }
  
  bool JunitReporter::assertionEnded(AssertionStats const &assertionStats)
  {
    if (assertionStats.assertionResult.getResultType() ==
            ResultWas::ThrewException &&
        !m_okToFail)
      unexpectedExceptions++;
    return CumulativeReporterBase::assertionEnded(assertionStats);
  }
  
  void JunitReporter::testCaseEnded(TestCaseStats const &testCaseStats)
  {
    stdOutForSuite += testCaseStats.stdOut;
    stdErrForSuite += testCaseStats.stdErr;
    CumulativeReporterBase::testCaseEnded(testCaseStats);
  }
  
  void JunitReporter::testGroupEnded(TestGroupStats const &testGroupStats)
  {
    double suiteTime = suiteTimer.getElapsedSeconds();
    CumulativeReporterBase::testGroupEnded(testGroupStats);
    writeGroup(*m_testGroups.back(), suiteTime);
  }
  
  void JunitReporter::testRunEndedCumulative() { xml.endElement(); }
  
  void JunitReporter::writeGroup(TestGroupNode const &groupNode, double suiteTime)
  {
    XmlWriter::ScopedElement e = xml.scopedElement("testsuite");
  
    TestGroupStats const &stats = groupNode.value;
    xml.writeAttribute("name", stats.groupInfo.name);
    xml.writeAttribute("errors", unexpectedExceptions);
    xml.writeAttribute("failures",
                       stats.totals.assertions.failed - unexpectedExceptions);
    xml.writeAttribute("tests", stats.totals.assertions.total());
    xml.writeAttribute("hostname", "tbd"); // !TBD
    if (m_config->showDurations() == ShowDurations::Never)
      xml.writeAttribute("time", "");
    else
      xml.writeAttribute("time", suiteTime);
    xml.writeAttribute("timestamp", getCurrentTimestamp());
  
    // Write properties if there are any
    if (m_config->hasTestFilters() || m_config->rngSeed() != 0)
    {
      auto properties = xml.scopedElement("properties");
      if (m_config->hasTestFilters())
      {
        xml.scopedElement("property")
            .writeAttribute("name", "filters")
            .writeAttribute("value",
                            serializeFilters(m_config->getTestsOrTags()));
      }
      if (m_config->rngSeed() != 0)
      {
        xml.scopedElement("property")
            .writeAttribute("name", "random-seed")
            .writeAttribute("value", m_config->rngSeed());
      }
    }
  
    // Write test cases
    for (auto const &child : groupNode.children)
      writeTestCase(*child);
  
    xml.scopedElement("system-out")
        .writeText(trim(stdOutForSuite), XmlFormatting::Newline);
    xml.scopedElement("system-err")
        .writeText(trim(stdErrForSuite), XmlFormatting::Newline);
  }
  
  void JunitReporter::writeTestCase(TestCaseNode const &testCaseNode)
  {
    TestCaseStats const &stats = testCaseNode.value;
  
    // All test cases have exactly one section - which represents the
    // test case itself. That section may have 0-n nested sections
    assert(testCaseNode.children.size() == 1);
    SectionNode const &rootSection = *testCaseNode.children.front();
  
    std::string className = stats.testInfo.className;
  
    if (className.empty())
    {
      className = fileNameTag(stats.testInfo.tags);
      if (className.empty())
        className = "global";
    }
  
    if (!m_config->name().empty())
      className = m_config->name() + "." + className;
  
    writeSection(className, "", rootSection);
  }
  
  void JunitReporter::writeSection(std::string const &className,
                                   std::string const &rootName,
                                   SectionNode const &sectionNode)
  {
    std::string name = trim(sectionNode.stats.sectionInfo.name);
    if (!rootName.empty())
      name = rootName + '/' + name;
  
    if (!sectionNode.assertions.empty() || !sectionNode.stdOut.empty() ||
        !sectionNode.stdErr.empty())
    {
      XmlWriter::ScopedElement e = xml.scopedElement("testcase");
      if (className.empty())
      {
        xml.writeAttribute("classname", name);
        xml.writeAttribute("name", "root");
      }
      else
      {
        xml.writeAttribute("classname", className);
        xml.writeAttribute("name", name);
      }
      xml.writeAttribute("time", ::Catch::Detail::stringify(
                                     sectionNode.stats.durationInSeconds));
  
      writeAssertions(sectionNode);
  
      if (!sectionNode.stdOut.empty())
        xml.scopedElement("system-out")
            .writeText(trim(sectionNode.stdOut), XmlFormatting::Newline);
      if (!sectionNode.stdErr.empty())
        xml.scopedElement("system-err")
            .writeText(trim(sectionNode.stdErr), XmlFormatting::Newline);
    }
    for (auto const &childNode : sectionNode.childSections)
      if (className.empty())
        writeSection(name, "", *childNode);
      else
        writeSection(className, name, *childNode);
  }
  
  void JunitReporter::writeAssertions(SectionNode const &sectionNode)
  {
    for (auto const &assertion : sectionNode.assertions)
      writeAssertion(assertion);
  }
  
  void JunitReporter::writeAssertion(AssertionStats const &stats)
  {
    AssertionResult const &result = stats.assertionResult;
    if (!result.isOk())
    {
      std::string elementName;
      switch (result.getResultType())
      {
      case ResultWas::ThrewException:
      case ResultWas::FatalErrorCondition:
        elementName = "error";
        break;
      case ResultWas::ExplicitFailure:
      case ResultWas::ExpressionFailed:
      case ResultWas::DidntThrowException:
        elementName = "failure";
        break;
  
      // We should never see these here:
      case ResultWas::Info:
      case ResultWas::Warning:
      case ResultWas::Ok:
      case ResultWas::Unknown:
      case ResultWas::FailureBit:
      case ResultWas::Exception:
        elementName = "internalError";
        break;
      }
  
      XmlWriter::ScopedElement e = xml.scopedElement(elementName);
  
      xml.writeAttribute("message", result.getExpression());
      xml.writeAttribute("type", result.getTestMacroName());
  
      ReusableStringStream rss;
      if (stats.totals.assertions.total() > 0)
      {
        rss << "FAILED"
            << ":\n";
        if (result.hasExpression())
        {
          rss << "  ";
          rss << result.getExpressionInMacro();
          rss << '\n';
        }
        if (result.hasExpandedExpression())
        {
          rss << "with expansion:\n";
          rss << Column(result.getExpandedExpression()).indent(2) << '\n';
        }
      }
      else
      {
        rss << '\n';
      }
  
      if (!result.getMessage().empty())
        rss << result.getMessage() << '\n';
      for (auto const &msg : stats.infoMessages)
        if (msg.type == ResultWas::Info)
          rss << msg.message << '\n';
  
      rss << "at " << result.getSourceInfo();
      xml.writeText(rss.str(), XmlFormatting::Newline);
    }
  }
  
  CATCH_REGISTER_REPORTER("junit", JunitReporter)
  
  } // end namespace Catch
  // end catch_reporter_junit.cpp
  // start catch_reporter_listening.cpp
  
  #include <cassert>
  
  namespace Catch
  {
  ListeningReporter::ListeningReporter()
  {
    // We will assume that listeners will always want all assertions
    m_preferences.shouldReportAllAssertions = true;
  }
  
  void ListeningReporter::addListener(IStreamingReporterPtr &&listener)
  {
    m_listeners.push_back(std::move(listener));
  }
  
  void ListeningReporter::addReporter(IStreamingReporterPtr &&reporter)
  {
    assert(!m_reporter && "Listening reporter can wrap only 1 real reporter");
    m_reporter = std::move(reporter);
    m_preferences.shouldRedirectStdOut =
        m_reporter->getPreferences().shouldRedirectStdOut;
  }
  
  ReporterPreferences ListeningReporter::getPreferences() const
  {
    return m_preferences;
  }
  
  std::set<Verbosity> ListeningReporter::getSupportedVerbosities()
  {
    return std::set<Verbosity>{};
  }
  
  void ListeningReporter::noMatchingTestCases(std::string const &spec)
  {
    for (auto const &listener : m_listeners)
    {
      listener->noMatchingTestCases(spec);
    }
    m_reporter->noMatchingTestCases(spec);
  }
  
  void ListeningReporter::reportInvalidArguments(std::string const &arg)
  {
    for (auto const &listener : m_listeners)
    {
      listener->reportInvalidArguments(arg);
    }
    m_reporter->reportInvalidArguments(arg);
  }
  
  #if defined(CATCH_CONFIG_ENABLE_BENCHMARKING)
  void ListeningReporter::benchmarkPreparing(std::string const &name)
  {
    for (auto const &listener : m_listeners)
    {
      listener->benchmarkPreparing(name);
    }
    m_reporter->benchmarkPreparing(name);
  }
  void ListeningReporter::benchmarkStarting(BenchmarkInfo const &benchmarkInfo)
  {
    for (auto const &listener : m_listeners)
    {
      listener->benchmarkStarting(benchmarkInfo);
    }
    m_reporter->benchmarkStarting(benchmarkInfo);
  }
  void ListeningReporter::benchmarkEnded(BenchmarkStats<> const &benchmarkStats)
  {
    for (auto const &listener : m_listeners)
    {
      listener->benchmarkEnded(benchmarkStats);
    }
    m_reporter->benchmarkEnded(benchmarkStats);
  }
  
  void ListeningReporter::benchmarkFailed(std::string const &error)
  {
    for (auto const &listener : m_listeners)
    {
      listener->benchmarkFailed(error);
    }
    m_reporter->benchmarkFailed(error);
  }
  #endif // CATCH_CONFIG_ENABLE_BENCHMARKING
  
  void ListeningReporter::testRunStarting(TestRunInfo const &testRunInfo)
  {
    for (auto const &listener : m_listeners)
    {
      listener->testRunStarting(testRunInfo);
    }
    m_reporter->testRunStarting(testRunInfo);
  }
  
  void ListeningReporter::testGroupStarting(GroupInfo const &groupInfo)
  {
    for (auto const &listener : m_listeners)
    {
      listener->testGroupStarting(groupInfo);
    }
    m_reporter->testGroupStarting(groupInfo);
  }
  
  void ListeningReporter::testCaseStarting(TestCaseInfo const &testInfo)
  {
    for (auto const &listener : m_listeners)
    {
      listener->testCaseStarting(testInfo);
    }
    m_reporter->testCaseStarting(testInfo);
  }
  
  void ListeningReporter::sectionStarting(SectionInfo const &sectionInfo)
  {
    for (auto const &listener : m_listeners)
    {
      listener->sectionStarting(sectionInfo);
    }
    m_reporter->sectionStarting(sectionInfo);
  }
  
  void ListeningReporter::assertionStarting(AssertionInfo const &assertionInfo)
  {
    for (auto const &listener : m_listeners)
    {
      listener->assertionStarting(assertionInfo);
    }
    m_reporter->assertionStarting(assertionInfo);
  }
  
  // The return value indicates if the messages buffer should be cleared:
  bool ListeningReporter::assertionEnded(AssertionStats const &assertionStats)
  {
    for (auto const &listener : m_listeners)
    {
      static_cast<void>(listener->assertionEnded(assertionStats));
    }
    return m_reporter->assertionEnded(assertionStats);
  }
  
  void ListeningReporter::sectionEnded(SectionStats const &sectionStats)
  {
    for (auto const &listener : m_listeners)
    {
      listener->sectionEnded(sectionStats);
    }
    m_reporter->sectionEnded(sectionStats);
  }
  
  void ListeningReporter::testCaseEnded(TestCaseStats const &testCaseStats)
  {
    for (auto const &listener : m_listeners)
    {
      listener->testCaseEnded(testCaseStats);
    }
    m_reporter->testCaseEnded(testCaseStats);
  }
  
  void ListeningReporter::testGroupEnded(TestGroupStats const &testGroupStats)
  {
    for (auto const &listener : m_listeners)
    {
      listener->testGroupEnded(testGroupStats);
    }
    m_reporter->testGroupEnded(testGroupStats);
  }
  
  void ListeningReporter::testRunEnded(TestRunStats const &testRunStats)
  {
    for (auto const &listener : m_listeners)
    {
      listener->testRunEnded(testRunStats);
    }
    m_reporter->testRunEnded(testRunStats);
  }
  
  void ListeningReporter::skipTest(TestCaseInfo const &testInfo)
  {
    for (auto const &listener : m_listeners)
    {
      listener->skipTest(testInfo);
    }
    m_reporter->skipTest(testInfo);
  }
  
  bool ListeningReporter::isMulti() const { return true; }
  
  } // end namespace Catch
  // end catch_reporter_listening.cpp
  // start catch_reporter_xml.cpp
  
  #if defined(_MSC_VER)
  #pragma warning(push)
  #pragma warning(disable : 4061) // Not all labels are EXPLICITLY handled in
                                  // switch Note that 4062 (not all labels are
                                  // handled and default is missing) is enabled
  #endif
  
  namespace Catch
  {
  XmlReporter::XmlReporter(ReporterConfig const &_config)
      : StreamingReporterBase(_config), m_xml(_config.stream())
  {
    m_reporterPrefs.shouldRedirectStdOut      = true;
    m_reporterPrefs.shouldReportAllAssertions = true;
  }
  
  XmlReporter::~XmlReporter() = default;
  
  std::string XmlReporter::getDescription()
  {
    return "Reports test results as an XML document";
  }
  
  std::string XmlReporter::getStylesheetRef() const { return std::string(); }
  
  void XmlReporter::writeSourceInfo(SourceLineInfo const &sourceInfo)
  {
    m_xml.writeAttribute("filename", sourceInfo.file)
        .writeAttribute("line", sourceInfo.line);
  }
  
  void XmlReporter::noMatchingTestCases(std::string const &s)
  {
    StreamingReporterBase::noMatchingTestCases(s);
  }
  
  void XmlReporter::testRunStarting(TestRunInfo const &testInfo)
  {
    StreamingReporterBase::testRunStarting(testInfo);
    std::string stylesheetRef = getStylesheetRef();
    if (!stylesheetRef.empty())
      m_xml.writeStylesheetRef(stylesheetRef);
    m_xml.startElement("Catch");
    if (!m_config->name().empty())
      m_xml.writeAttribute("name", m_config->name());
    if (m_config->testSpec().hasFilters())
      m_xml.writeAttribute("filters",
                           serializeFilters(m_config->getTestsOrTags()));
    if (m_config->rngSeed() != 0)
      m_xml.scopedElement("Randomness")
          .writeAttribute("seed", m_config->rngSeed());
  }
  
  void XmlReporter::testGroupStarting(GroupInfo const &groupInfo)
  {
    StreamingReporterBase::testGroupStarting(groupInfo);
    m_xml.startElement("Group").writeAttribute("name", groupInfo.name);
  }
  
  void XmlReporter::testCaseStarting(TestCaseInfo const &testInfo)
  {
    StreamingReporterBase::testCaseStarting(testInfo);
    m_xml.startElement("TestCase")
        .writeAttribute("name", trim(testInfo.name))
        .writeAttribute("description", testInfo.description)
        .writeAttribute("tags", testInfo.tagsAsString());
  
    writeSourceInfo(testInfo.lineInfo);
  
    if (m_config->showDurations() == ShowDurations::Always)
      m_testCaseTimer.start();
    m_xml.ensureTagClosed();
  }
  
  void XmlReporter::sectionStarting(SectionInfo const &sectionInfo)
  {
    StreamingReporterBase::sectionStarting(sectionInfo);
    if (m_sectionDepth++ > 0)
    {
      m_xml.startElement("Section").writeAttribute("name",
                                                   trim(sectionInfo.name));
      writeSourceInfo(sectionInfo.lineInfo);
      m_xml.ensureTagClosed();
    }
  }
  
  void XmlReporter::assertionStarting(AssertionInfo const &) {}
  
  bool XmlReporter::assertionEnded(AssertionStats const &assertionStats)
  {
    AssertionResult const &result = assertionStats.assertionResult;
  
    bool includeResults = m_config->includeSuccessfulResults() || !result.isOk();
  
    if (includeResults || result.getResultType() == ResultWas::Warning)
    {
      // Print any info messages in <Info> tags.
      for (auto const &msg : assertionStats.infoMessages)
      {
        if (msg.type == ResultWas::Info && includeResults)
        {
          m_xml.scopedElement("Info").writeText(msg.message);
        }
        else if (msg.type == ResultWas::Warning)
        {
          m_xml.scopedElement("Warning").writeText(msg.message);
        }
      }
    }
  
    // Drop out if result was successful but we're not printing them.
    if (!includeResults && result.getResultType() != ResultWas::Warning)
      return true;
  
    // Print the expression if there is one.
    if (result.hasExpression())
    {
      m_xml.startElement("Expression")
          .writeAttribute("success", result.succeeded())
          .writeAttribute("type", result.getTestMacroName());
  
      writeSourceInfo(result.getSourceInfo());
  
      m_xml.scopedElement("Original").writeText(result.getExpression());
      m_xml.scopedElement("Expanded").writeText(result.getExpandedExpression());
    }
  
    // And... Print a result applicable to each result type.
    switch (result.getResultType())
    {
    case ResultWas::ThrewException:
      m_xml.startElement("Exception");
      writeSourceInfo(result.getSourceInfo());
      m_xml.writeText(result.getMessage());
      m_xml.endElement();
      break;
    case ResultWas::FatalErrorCondition:
      m_xml.startElement("FatalErrorCondition");
      writeSourceInfo(result.getSourceInfo());
      m_xml.writeText(result.getMessage());
      m_xml.endElement();
      break;
    case ResultWas::Info:
      m_xml.scopedElement("Info").writeText(result.getMessage());
      break;
    case ResultWas::Warning:
      // Warning will already have been written
      break;
    case ResultWas::ExplicitFailure:
      m_xml.startElement("Failure");
      writeSourceInfo(result.getSourceInfo());
      m_xml.writeText(result.getMessage());
      m_xml.endElement();
      break;
    default:
      break;
    }
  
    if (result.hasExpression())
      m_xml.endElement();
  
    return true;
  }
  
  void XmlReporter::sectionEnded(SectionStats const &sectionStats)
  {
    StreamingReporterBase::sectionEnded(sectionStats);
    if (--m_sectionDepth > 0)
    {
      XmlWriter::ScopedElement e = m_xml.scopedElement("OverallResults");
      e.writeAttribute("successes", sectionStats.assertions.passed);
      e.writeAttribute("failures", sectionStats.assertions.failed);
      e.writeAttribute("expectedFailures", sectionStats.assertions.failedButOk);
  
      if (m_config->showDurations() == ShowDurations::Always)
        e.writeAttribute("durationInSeconds", sectionStats.durationInSeconds);
  
      m_xml.endElement();
    }
  }
  
  void XmlReporter::testCaseEnded(TestCaseStats const &testCaseStats)
  {
    StreamingReporterBase::testCaseEnded(testCaseStats);
    XmlWriter::ScopedElement e = m_xml.scopedElement("OverallResult");
    e.writeAttribute("success", testCaseStats.totals.assertions.allOk());
  
    if (m_config->showDurations() == ShowDurations::Always)
      e.writeAttribute("durationInSeconds", m_testCaseTimer.getElapsedSeconds());
  
    if (!testCaseStats.stdOut.empty())
      m_xml.scopedElement("StdOut").writeText(trim(testCaseStats.stdOut),
                                              XmlFormatting::Newline);
    if (!testCaseStats.stdErr.empty())
      m_xml.scopedElement("StdErr").writeText(trim(testCaseStats.stdErr),
                                              XmlFormatting::Newline);
  
    m_xml.endElement();
  }
  
  void XmlReporter::testGroupEnded(TestGroupStats const &testGroupStats)
  {
    StreamingReporterBase::testGroupEnded(testGroupStats);
    // TODO: Check testGroupStats.aborting and act accordingly.
    m_xml.scopedElement("OverallResults")
        .writeAttribute("successes", testGroupStats.totals.assertions.passed)
        .writeAttribute("failures", testGroupStats.totals.assertions.failed)
        .writeAttribute("expectedFailures",
                        testGroupStats.totals.assertions.failedButOk);
    m_xml.endElement();
  }
  
  void XmlReporter::testRunEnded(TestRunStats const &testRunStats)
  {
    StreamingReporterBase::testRunEnded(testRunStats);
    m_xml.scopedElement("OverallResults")
        .writeAttribute("successes", testRunStats.totals.assertions.passed)
        .writeAttribute("failures", testRunStats.totals.assertions.failed)
        .writeAttribute("expectedFailures",
                        testRunStats.totals.assertions.failedButOk);
    m_xml.endElement();
  }
  
  #if defined(CATCH_CONFIG_ENABLE_BENCHMARKING)
  void XmlReporter::benchmarkPreparing(std::string const &name)
  {
    m_xml.startElement("BenchmarkResults").writeAttribute("name", name);
  }
  
  void XmlReporter::benchmarkStarting(BenchmarkInfo const &info)
  {
    m_xml.writeAttribute("samples", info.samples)
        .writeAttribute("resamples", info.resamples)
        .writeAttribute("iterations", info.iterations)
        .writeAttribute("clockResolution", info.clockResolution)
        .writeAttribute("estimatedDuration", info.estimatedDuration)
        .writeComment("All values in nano seconds");
  }
  
  void XmlReporter::benchmarkEnded(BenchmarkStats<> const &benchmarkStats)
  {
    m_xml.startElement("mean")
        .writeAttribute("value", benchmarkStats.mean.point.count())
        .writeAttribute("lowerBound", benchmarkStats.mean.lower_bound.count())
        .writeAttribute("upperBound", benchmarkStats.mean.upper_bound.count())
        .writeAttribute("ci", benchmarkStats.mean.confidence_interval);
    m_xml.endElement();
    m_xml.startElement("standardDeviation")
        .writeAttribute("value", benchmarkStats.standardDeviation.point.count())
        .writeAttribute("lowerBound",
                        benchmarkStats.standardDeviation.lower_bound.count())
        .writeAttribute("upperBound",
                        benchmarkStats.standardDeviation.upper_bound.count())
        .writeAttribute("ci",
                        benchmarkStats.standardDeviation.confidence_interval);
    m_xml.endElement();
    m_xml.startElement("outliers")
        .writeAttribute("variance", benchmarkStats.outlierVariance)
        .writeAttribute("lowMild", benchmarkStats.outliers.low_mild)
        .writeAttribute("lowSevere", benchmarkStats.outliers.low_severe)
        .writeAttribute("highMild", benchmarkStats.outliers.high_mild)
        .writeAttribute("highSevere", benchmarkStats.outliers.high_severe);
    m_xml.endElement();
    m_xml.endElement();
  }
  
  void XmlReporter::benchmarkFailed(std::string const &error)
  {
    m_xml.scopedElement("failed").writeAttribute("message", error);
    m_xml.endElement();
  }
  #endif // CATCH_CONFIG_ENABLE_BENCHMARKING
  
  CATCH_REGISTER_REPORTER("xml", XmlReporter)
  
  } // end namespace Catch
  
  #if defined(_MSC_VER)
  #pragma warning(pop)
  #endif
  // end catch_reporter_xml.cpp
  
  namespace Catch
  {
  LeakDetector leakDetector;
  }
  
  #ifdef __clang__
  #pragma clang diagnostic pop
  #endif
  
  // end catch_impl.hpp
  #endif
  
  #ifdef CATCH_CONFIG_MAIN
  // start catch_default_main.hpp
  
  #ifndef __OBJC__
  
  #if defined(CATCH_CONFIG_WCHAR) && defined(CATCH_PLATFORM_WINDOWS) && \
      defined(_UNICODE) && !defined(DO_NOT_USE_WMAIN)
  // Standard C/C++ Win32 Unicode wmain entry point
  extern "C" int wmain(int argc, wchar_t *argv[], wchar_t *[])
  {
  #else
  // Standard C/C++ main entry point
  int main(int argc, char *argv[])
  {
  #endif
  
    return Catch::Session().run(argc, argv);
  }
  
  #else // __OBJC__
  
  // Objective-C entry point
  int main(int argc, char *const argv[])
  {
  #if !CATCH_ARC_ENABLED
    NSAutoreleasePool *pool = [[NSAutoreleasePool alloc] init];
  #endif
  
    Catch::registerTestMethods();
    int result = Catch::Session().run(argc, (char **)argv);
  
  #if !CATCH_ARC_ENABLED
    [pool drain];
  #endif
  
    return result;
  }
  
  #endif // __OBJC__
  
  // end catch_default_main.hpp
  #endif
  
  #if !defined(CATCH_CONFIG_IMPL_ONLY)
  
  #ifdef CLARA_CONFIG_MAIN_NOT_DEFINED
  #undef CLARA_CONFIG_MAIN
  #endif
  
  #if !defined(CATCH_CONFIG_DISABLE)
  //////
  // If this config identifier is defined then all CATCH macros are prefixed with
  // CATCH_
  #ifdef CATCH_CONFIG_PREFIX_ALL
  
  #define CATCH_REQUIRE(...)                                               \
    INTERNAL_CATCH_TEST("CATCH_REQUIRE", Catch::ResultDisposition::Normal, \
                        __VA_ARGS__)
  #define CATCH_REQUIRE_FALSE(...)                               \
    INTERNAL_CATCH_TEST("CATCH_REQUIRE_FALSE",                   \
                        Catch::ResultDisposition::Normal |       \
                            Catch::ResultDisposition::FalseTest, \
                        __VA_ARGS__)
  
  #define CATCH_REQUIRE_THROWS(...)               \
    INTERNAL_CATCH_THROWS("CATCH_REQUIRE_THROWS", \
                          Catch::ResultDisposition::Normal, __VA_ARGS__)
  #define CATCH_REQUIRE_THROWS_AS(expr, exceptionType)                 \
    INTERNAL_CATCH_THROWS_AS("CATCH_REQUIRE_THROWS_AS", exceptionType, \
                             Catch::ResultDisposition::Normal, expr)
  #define CATCH_REQUIRE_THROWS_WITH(expr, matcher)                               \
    INTERNAL_CATCH_THROWS_STR_MATCHES("CATCH_REQUIRE_THROWS_WITH",               \
                                      Catch::ResultDisposition::Normal, matcher, \
                                      expr)
  #if !defined(CATCH_CONFIG_DISABLE_MATCHERS)
  #define CATCH_REQUIRE_THROWS_MATCHES(expr, exceptionType, matcher)             \
    INTERNAL_CATCH_THROWS_MATCHES("CATCH_REQUIRE_THROWS_MATCHES", exceptionType, \
                                  Catch::ResultDisposition::Normal, matcher,     \
                                  expr)
  #endif // CATCH_CONFIG_DISABLE_MATCHERS
  #define CATCH_REQUIRE_NOTHROW(...)                 \
    INTERNAL_CATCH_NO_THROW("CATCH_REQUIRE_NOTHROW", \
                            Catch::ResultDisposition::Normal, __VA_ARGS__)
  
  #define CATCH_CHECK(...) \
    INTERNAL_CATCH_TEST(   \
        "CATCH_CHECK", Catch::ResultDisposition::ContinueOnFailure, __VA_ARGS__)
  #define CATCH_CHECK_FALSE(...)                                      \
    INTERNAL_CATCH_TEST("CATCH_CHECK_FALSE",                          \
                        Catch::ResultDisposition::ContinueOnFailure | \
                            Catch::ResultDisposition::FalseTest,      \
                        __VA_ARGS__)
  #define CATCH_CHECKED_IF(...)           \
    INTERNAL_CATCH_IF("CATCH_CHECKED_IF", \
                      Catch::ResultDisposition::ContinueOnFailure, __VA_ARGS__)
  #define CATCH_CHECKED_ELSE(...)                                    \
    INTERNAL_CATCH_ELSE("CATCH_CHECKED_ELSE",                        \
                        Catch::ResultDisposition::ContinueOnFailure, \
                        __VA_ARGS__)
  #define CATCH_CHECK_NOFAIL(...)                                     \
    INTERNAL_CATCH_TEST("CATCH_CHECK_NOFAIL",                         \
                        Catch::ResultDisposition::ContinueOnFailure | \
                            Catch::ResultDisposition::SuppressFail,   \
                        __VA_ARGS__)
  
  #define CATCH_CHECK_THROWS(...)                                      \
    INTERNAL_CATCH_THROWS("CATCH_CHECK_THROWS",                        \
                          Catch::ResultDisposition::ContinueOnFailure, \
                          __VA_ARGS__)
  #define CATCH_CHECK_THROWS_AS(expr, exceptionType)                 \
    INTERNAL_CATCH_THROWS_AS("CATCH_CHECK_THROWS_AS", exceptionType, \
                             Catch::ResultDisposition::ContinueOnFailure, expr)
  #define CATCH_CHECK_THROWS_WITH(expr, matcher)                                \
    INTERNAL_CATCH_THROWS_STR_MATCHES(                                          \
        "CATCH_CHECK_THROWS_WITH", Catch::ResultDisposition::ContinueOnFailure, \
        matcher, expr)
  #if !defined(CATCH_CONFIG_DISABLE_MATCHERS)
  #define CATCH_CHECK_THROWS_MATCHES(expr, exceptionType, matcher)             \
    INTERNAL_CATCH_THROWS_MATCHES("CATCH_CHECK_THROWS_MATCHES", exceptionType, \
                                  Catch::ResultDisposition::ContinueOnFailure, \
                                  matcher, expr)
  #endif // CATCH_CONFIG_DISABLE_MATCHERS
  #define CATCH_CHECK_NOTHROW(...)                                       \
    INTERNAL_CATCH_NO_THROW("CATCH_CHECK_NOTHROW",                       \
                            Catch::ResultDisposition::ContinueOnFailure, \
                            __VA_ARGS__)
  
  #if !defined(CATCH_CONFIG_DISABLE_MATCHERS)
  #define CATCH_CHECK_THAT(arg, matcher)             \
    INTERNAL_CHECK_THAT("CATCH_CHECK_THAT", matcher, \
                        Catch::ResultDisposition::ContinueOnFailure, arg)
  
  #define CATCH_REQUIRE_THAT(arg, matcher)             \
    INTERNAL_CHECK_THAT("CATCH_REQUIRE_THAT", matcher, \
                        Catch::ResultDisposition::Normal, arg)
  #endif // CATCH_CONFIG_DISABLE_MATCHERS
  
  #define CATCH_INFO(msg) INTERNAL_CATCH_INFO("CATCH_INFO", msg)
  #define CATCH_UNSCOPED_INFO(msg) \
    INTERNAL_CATCH_UNSCOPED_INFO("CATCH_UNSCOPED_INFO", msg)
  #define CATCH_WARN(msg)                                       \
    INTERNAL_CATCH_MSG("CATCH_WARN", Catch::ResultWas::Warning, \
                       Catch::ResultDisposition::ContinueOnFailure, msg)
  #define CATCH_CAPTURE(...)                                     \
    INTERNAL_CATCH_CAPTURE(INTERNAL_CATCH_UNIQUE_NAME(capturer), \
                           "CATCH_CAPTURE", __VA_ARGS__)
  
  #define CATCH_TEST_CASE(...) INTERNAL_CATCH_TESTCASE(__VA_ARGS__)
  #define CATCH_TEST_CASE_METHOD(className, ...) \
    INTERNAL_CATCH_TEST_CASE_METHOD(className, __VA_ARGS__)
  #define CATCH_METHOD_AS_TEST_CASE(method, ...) \
    INTERNAL_CATCH_METHOD_AS_TEST_CASE(method, __VA_ARGS__)
  #define CATCH_REGISTER_TEST_CASE(Function, ...) \
    INTERNAL_CATCH_REGISTER_TESTCASE(Function, __VA_ARGS__)
  #define CATCH_SECTION(...) INTERNAL_CATCH_SECTION(__VA_ARGS__)
  #define CATCH_DYNAMIC_SECTION(...) INTERNAL_CATCH_DYNAMIC_SECTION(__VA_ARGS__)
  #define CATCH_FAIL(...)                                               \
    INTERNAL_CATCH_MSG("CATCH_FAIL", Catch::ResultWas::ExplicitFailure, \
                       Catch::ResultDisposition::Normal, __VA_ARGS__)
  #define CATCH_FAIL_CHECK(...)                                               \
    INTERNAL_CATCH_MSG("CATCH_FAIL_CHECK", Catch::ResultWas::ExplicitFailure, \
                       Catch::ResultDisposition::ContinueOnFailure, __VA_ARGS__)
  #define CATCH_SUCCEED(...)                                  \
    INTERNAL_CATCH_MSG("CATCH_SUCCEED", Catch::ResultWas::Ok, \
                       Catch::ResultDisposition::ContinueOnFailure, __VA_ARGS__)
  
  #define CATCH_ANON_TEST_CASE() INTERNAL_CATCH_TESTCASE()
  
  #ifndef CATCH_CONFIG_TRADITIONAL_MSVC_PREPROCESSOR
  #define CATCH_TEMPLATE_TEST_CASE(...) \
    INTERNAL_CATCH_TEMPLATE_TEST_CASE(__VA_ARGS__)
  #define CATCH_TEMPLATE_TEST_CASE_SIG(...) \
    INTERNAL_CATCH_TEMPLATE_TEST_CASE_SIG(__VA_ARGS__)
  #define CATCH_TEMPLATE_TEST_CASE_METHOD(className, ...) \
    INTERNAL_CATCH_TEMPLATE_TEST_CASE_METHOD(className, __VA_ARGS__)
  #define CATCH_TEMPLATE_TEST_CASE_METHOD_SIG(className, ...) \
    INTERNAL_CATCH_TEMPLATE_TEST_CASE_METHOD_SIG(className, __VA_ARGS__)
  #define CATCH_TEMPLATE_PRODUCT_TEST_CASE(...) \
    INTERNAL_CATCH_TEMPLATE_PRODUCT_TEST_CASE(__VA_ARGS__)
  #define CATCH_TEMPLATE_PRODUCT_TEST_CASE_SIG(...) \
    INTERNAL_CATCH_TEMPLATE_PRODUCT_TEST_CASE_SIG(__VA_ARGS__)
  #define CATCH_TEMPLATE_PRODUCT_TEST_CASE_METHOD(className, ...) \
    INTERNAL_CATCH_TEMPLATE_PRODUCT_TEST_CASE_METHOD(className, __VA_ARGS__)
  #define CATCH_TEMPLATE_PRODUCT_TEST_CASE_METHOD_SIG(className, ...) \
    INTERNAL_CATCH_TEMPLATE_PRODUCT_TEST_CASE_METHOD_SIG(className, __VA_ARGS__)
  #else
  #define CATCH_TEMPLATE_TEST_CASE(...) \
    INTERNAL_CATCH_EXPAND_VARGS(INTERNAL_CATCH_TEMPLATE_TEST_CASE(__VA_ARGS__))
  #define CATCH_TEMPLATE_TEST_CASE_SIG(...) \
    INTERNAL_CATCH_EXPAND_VARGS(            \
        INTERNAL_CATCH_TEMPLATE_TEST_CASE_SIG(__VA_ARGS__))
  #define CATCH_TEMPLATE_TEST_CASE_METHOD(className, ...) \
    INTERNAL_CATCH_EXPAND_VARGS(                          \
        INTERNAL_CATCH_TEMPLATE_TEST_CASE_METHOD(className, __VA_ARGS__))
  #define CATCH_TEMPLATE_TEST_CASE_METHOD_SIG(className, ...) \
    INTERNAL_CATCH_EXPAND_VARGS(                              \
        INTERNAL_CATCH_TEMPLATE_TEST_CASE_METHOD_SIG(className, __VA_ARGS__))
  #define CATCH_TEMPLATE_PRODUCT_TEST_CASE(...) \
    INTERNAL_CATCH_EXPAND_VARGS(                \
        INTERNAL_CATCH_TEMPLATE_PRODUCT_TEST_CASE(__VA_ARGS__))
  #define CATCH_TEMPLATE_PRODUCT_TEST_CASE_SIG(...) \
    INTERNAL_CATCH_EXPAND_VARGS(                    \
        INTERNAL_CATCH_TEMPLATE_PRODUCT_TEST_CASE_SIG(__VA_ARGS__))
  #define CATCH_TEMPLATE_PRODUCT_TEST_CASE_METHOD(className, ...)   \
    INTERNAL_CATCH_EXPAND_VARGS(                                    \
        INTERNAL_CATCH_TEMPLATE_PRODUCT_TEST_CASE_METHOD(className, \
                                                         __VA_ARGS__))
  #define CATCH_TEMPLATE_PRODUCT_TEST_CASE_METHOD_SIG(className, ...)   \
    INTERNAL_CATCH_EXPAND_VARGS(                                        \
        INTERNAL_CATCH_TEMPLATE_PRODUCT_TEST_CASE_METHOD_SIG(className, \
                                                             __VA_ARGS__))
  #endif
  
  #if !defined(CATCH_CONFIG_RUNTIME_STATIC_REQUIRE)
  #define CATCH_STATIC_REQUIRE(...)           \
    static_assert(__VA_ARGS__, #__VA_ARGS__); \
    CATCH_SUCCEED(#__VA_ARGS__)
  #define CATCH_STATIC_REQUIRE_FALSE(...)                 \
    static_assert(!(__VA_ARGS__), "!(" #__VA_ARGS__ ")"); \
    CATCH_SUCCEED(#__VA_ARGS__)
  #else
  #define CATCH_STATIC_REQUIRE(...) CATCH_REQUIRE(__VA_ARGS__)
  #define CATCH_STATIC_REQUIRE_FALSE(...) CATCH_REQUIRE_FALSE(__VA_ARGS__)
  #endif
  
  // "BDD-style" convenience wrappers
  #define CATCH_SCENARIO(...) CATCH_TEST_CASE("Scenario: " __VA_ARGS__)
  #define CATCH_SCENARIO_METHOD(className, ...) \
    INTERNAL_CATCH_TEST_CASE_METHOD(className, "Scenario: " __VA_ARGS__)
  #define CATCH_GIVEN(desc) INTERNAL_CATCH_DYNAMIC_SECTION("    Given: " << desc)
  #define CATCH_AND_GIVEN(desc) \
    INTERNAL_CATCH_DYNAMIC_SECTION("And given: " << desc)
  #define CATCH_WHEN(desc) INTERNAL_CATCH_DYNAMIC_SECTION("     When: " << desc)
  #define CATCH_AND_WHEN(desc) \
    INTERNAL_CATCH_DYNAMIC_SECTION(" And when: " << desc)
  #define CATCH_THEN(desc) INTERNAL_CATCH_DYNAMIC_SECTION("     Then: " << desc)
  #define CATCH_AND_THEN(desc) \
    INTERNAL_CATCH_DYNAMIC_SECTION("      And: " << desc)
  
  #if defined(CATCH_CONFIG_ENABLE_BENCHMARKING)
  #define CATCH_BENCHMARK(...)                                      \
    INTERNAL_CATCH_BENCHMARK(                                       \
        INTERNAL_CATCH_UNIQUE_NAME(____C_A_T_C_H____B_E_N_C_H____), \
        INTERNAL_CATCH_GET_1_ARG(__VA_ARGS__, , ),                  \
        INTERNAL_CATCH_GET_2_ARG(__VA_ARGS__, , ))
  #define CATCH_BENCHMARK_ADVANCED(name) \
    INTERNAL_CATCH_BENCHMARK_ADVANCED(   \
        INTERNAL_CATCH_UNIQUE_NAME(____C_A_T_C_H____B_E_N_C_H____), name)
  #endif // CATCH_CONFIG_ENABLE_BENCHMARKING
  
  // If CATCH_CONFIG_PREFIX_ALL is not defined then the CATCH_ prefix is not
  // required
  #else
  
  #define REQUIRE(...) \
    INTERNAL_CATCH_TEST("REQUIRE", Catch::ResultDisposition::Normal, __VA_ARGS__)
  #define REQUIRE_FALSE(...)                                     \
    INTERNAL_CATCH_TEST("REQUIRE_FALSE",                         \
                        Catch::ResultDisposition::Normal |       \
                            Catch::ResultDisposition::FalseTest, \
                        __VA_ARGS__)
  
  #define REQUIRE_THROWS(...)                                                 \
    INTERNAL_CATCH_THROWS("REQUIRE_THROWS", Catch::ResultDisposition::Normal, \
                          __VA_ARGS__)
  #define REQUIRE_THROWS_AS(expr, exceptionType)                 \
    INTERNAL_CATCH_THROWS_AS("REQUIRE_THROWS_AS", exceptionType, \
                             Catch::ResultDisposition::Normal, expr)
  #define REQUIRE_THROWS_WITH(expr, matcher) \
    INTERNAL_CATCH_THROWS_STR_MATCHES(       \
        "REQUIRE_THROWS_WITH", Catch::ResultDisposition::Normal, matcher, expr)
  #if !defined(CATCH_CONFIG_DISABLE_MATCHERS)
  #define REQUIRE_THROWS_MATCHES(expr, exceptionType, matcher)               \
    INTERNAL_CATCH_THROWS_MATCHES("REQUIRE_THROWS_MATCHES", exceptionType,   \
                                  Catch::ResultDisposition::Normal, matcher, \
                                  expr)
  #endif // CATCH_CONFIG_DISABLE_MATCHERS
  #define REQUIRE_NOTHROW(...)                                                   \
    INTERNAL_CATCH_NO_THROW("REQUIRE_NOTHROW", Catch::ResultDisposition::Normal, \
                            __VA_ARGS__)
  
  #define CHECK(...)                                                          \
    INTERNAL_CATCH_TEST("CHECK", Catch::ResultDisposition::ContinueOnFailure, \
                        __VA_ARGS__)
  #define CHECK_FALSE(...)                                            \
    INTERNAL_CATCH_TEST("CHECK_FALSE",                                \
                        Catch::ResultDisposition::ContinueOnFailure | \
                            Catch::ResultDisposition::FalseTest,      \
                        __VA_ARGS__)
  #define CHECKED_IF(...)                                                        \
    INTERNAL_CATCH_IF("CHECKED_IF", Catch::ResultDisposition::ContinueOnFailure, \
                      __VA_ARGS__)
  #define CHECKED_ELSE(...)                                          \
    INTERNAL_CATCH_ELSE("CHECKED_ELSE",                              \
                        Catch::ResultDisposition::ContinueOnFailure, \
                        __VA_ARGS__)
  #define CHECK_NOFAIL(...)                                           \
    INTERNAL_CATCH_TEST("CHECK_NOFAIL",                               \
                        Catch::ResultDisposition::ContinueOnFailure | \
                            Catch::ResultDisposition::SuppressFail,   \
                        __VA_ARGS__)
  
  #define CHECK_THROWS(...)                                            \
    INTERNAL_CATCH_THROWS("CHECK_THROWS",                              \
                          Catch::ResultDisposition::ContinueOnFailure, \
                          __VA_ARGS__)
  #define CHECK_THROWS_AS(expr, exceptionType)                 \
    INTERNAL_CATCH_THROWS_AS("CHECK_THROWS_AS", exceptionType, \
                             Catch::ResultDisposition::ContinueOnFailure, expr)
  #define CHECK_THROWS_WITH(expr, matcher)                                \
    INTERNAL_CATCH_THROWS_STR_MATCHES(                                    \
        "CHECK_THROWS_WITH", Catch::ResultDisposition::ContinueOnFailure, \
        matcher, expr)
  #if !defined(CATCH_CONFIG_DISABLE_MATCHERS)
  #define CHECK_THROWS_MATCHES(expr, exceptionType, matcher)                   \
    INTERNAL_CATCH_THROWS_MATCHES("CHECK_THROWS_MATCHES", exceptionType,       \
                                  Catch::ResultDisposition::ContinueOnFailure, \
                                  matcher, expr)
  #endif // CATCH_CONFIG_DISABLE_MATCHERS
  #define CHECK_NOTHROW(...)                                             \
    INTERNAL_CATCH_NO_THROW("CHECK_NOTHROW",                             \
                            Catch::ResultDisposition::ContinueOnFailure, \
                            __VA_ARGS__)
  
  #if !defined(CATCH_CONFIG_DISABLE_MATCHERS)
  #define CHECK_THAT(arg, matcher)             \
    INTERNAL_CHECK_THAT("CHECK_THAT", matcher, \
                        Catch::ResultDisposition::ContinueOnFailure, arg)
  
  #define REQUIRE_THAT(arg, matcher)             \
    INTERNAL_CHECK_THAT("REQUIRE_THAT", matcher, \
                        Catch::ResultDisposition::Normal, arg)
  #endif // CATCH_CONFIG_DISABLE_MATCHERS
  
  #define INFO(msg) INTERNAL_CATCH_INFO("INFO", msg)
  #define UNSCOPED_INFO(msg) INTERNAL_CATCH_UNSCOPED_INFO("UNSCOPED_INFO", msg)
  #define WARN(msg)                                       \
    INTERNAL_CATCH_MSG("WARN", Catch::ResultWas::Warning, \
                       Catch::ResultDisposition::ContinueOnFailure, msg)
  #define CAPTURE(...)                                                      \
    INTERNAL_CATCH_CAPTURE(INTERNAL_CATCH_UNIQUE_NAME(capturer), "CAPTURE", \
                           __VA_ARGS__)
  
  #define TEST_CASE(...) INTERNAL_CATCH_TESTCASE(__VA_ARGS__)
  #define TEST_CASE_METHOD(className, ...) \
    INTERNAL_CATCH_TEST_CASE_METHOD(className, __VA_ARGS__)
  #define METHOD_AS_TEST_CASE(method, ...) \
    INTERNAL_CATCH_METHOD_AS_TEST_CASE(method, __VA_ARGS__)
  #define REGISTER_TEST_CASE(Function, ...) \
    INTERNAL_CATCH_REGISTER_TESTCASE(Function, __VA_ARGS__)
  #define SECTION(...) INTERNAL_CATCH_SECTION(__VA_ARGS__)
  #define DYNAMIC_SECTION(...) INTERNAL_CATCH_DYNAMIC_SECTION(__VA_ARGS__)
  #define FAIL(...)                                               \
    INTERNAL_CATCH_MSG("FAIL", Catch::ResultWas::ExplicitFailure, \
                       Catch::ResultDisposition::Normal, __VA_ARGS__)
  #define FAIL_CHECK(...)                                               \
    INTERNAL_CATCH_MSG("FAIL_CHECK", Catch::ResultWas::ExplicitFailure, \
                       Catch::ResultDisposition::ContinueOnFailure, __VA_ARGS__)
  #define SUCCEED(...)                                  \
    INTERNAL_CATCH_MSG("SUCCEED", Catch::ResultWas::Ok, \
                       Catch::ResultDisposition::ContinueOnFailure, __VA_ARGS__)
  #define ANON_TEST_CASE() INTERNAL_CATCH_TESTCASE()
  
  #ifndef CATCH_CONFIG_TRADITIONAL_MSVC_PREPROCESSOR
  #define TEMPLATE_TEST_CASE(...) INTERNAL_CATCH_TEMPLATE_TEST_CASE(__VA_ARGS__)
  #define TEMPLATE_TEST_CASE_SIG(...) \
    INTERNAL_CATCH_TEMPLATE_TEST_CASE_SIG(__VA_ARGS__)
  #define TEMPLATE_TEST_CASE_METHOD(className, ...) \
    INTERNAL_CATCH_TEMPLATE_TEST_CASE_METHOD(className, __VA_ARGS__)
  #define TEMPLATE_TEST_CASE_METHOD_SIG(className, ...) \
    INTERNAL_CATCH_TEMPLATE_TEST_CASE_METHOD_SIG(className, __VA_ARGS__)
  #define TEMPLATE_PRODUCT_TEST_CASE(...) \
    INTERNAL_CATCH_TEMPLATE_PRODUCT_TEST_CASE(__VA_ARGS__)
  #define TEMPLATE_PRODUCT_TEST_CASE_SIG(...) \
    INTERNAL_CATCH_TEMPLATE_PRODUCT_TEST_CASE_SIG(__VA_ARGS__)
  #define TEMPLATE_PRODUCT_TEST_CASE_METHOD(className, ...) \
    INTERNAL_CATCH_TEMPLATE_PRODUCT_TEST_CASE_METHOD(className, __VA_ARGS__)
  #define TEMPLATE_PRODUCT_TEST_CASE_METHOD_SIG(className, ...) \
    INTERNAL_CATCH_TEMPLATE_PRODUCT_TEST_CASE_METHOD_SIG(className, __VA_ARGS__)
  #define TEMPLATE_LIST_TEST_CASE(...) \
    INTERNAL_CATCH_TEMPLATE_LIST_TEST_CASE(__VA_ARGS__)
  #define TEMPLATE_LIST_TEST_CASE_METHOD(className, ...) \
    INTERNAL_CATCH_TEMPLATE_LIST_TEST_CASE_METHOD(className, __VA_ARGS__)
  #else
  #define TEMPLATE_TEST_CASE(...) \
    INTERNAL_CATCH_EXPAND_VARGS(INTERNAL_CATCH_TEMPLATE_TEST_CASE(__VA_ARGS__))
  #define TEMPLATE_TEST_CASE_SIG(...) \
    INTERNAL_CATCH_EXPAND_VARGS(      \
        INTERNAL_CATCH_TEMPLATE_TEST_CASE_SIG(__VA_ARGS__))
  #define TEMPLATE_TEST_CASE_METHOD(className, ...) \
    INTERNAL_CATCH_EXPAND_VARGS(                    \
        INTERNAL_CATCH_TEMPLATE_TEST_CASE_METHOD(className, __VA_ARGS__))
  #define TEMPLATE_TEST_CASE_METHOD_SIG(className, ...) \
    INTERNAL_CATCH_EXPAND_VARGS(                        \
        INTERNAL_CATCH_TEMPLATE_TEST_CASE_METHOD_SIG(className, __VA_ARGS__))
  #define TEMPLATE_PRODUCT_TEST_CASE(...) \
    INTERNAL_CATCH_EXPAND_VARGS(          \
        INTERNAL_CATCH_TEMPLATE_PRODUCT_TEST_CASE(__VA_ARGS__))
  #define TEMPLATE_PRODUCT_TEST_CASE_SIG(...) \
    INTERNAL_CATCH_EXPAND_VARGS(              \
        INTERNAL_CATCH_TEMPLATE_PRODUCT_TEST_CASE_SIG(__VA_ARGS__))
  #define TEMPLATE_PRODUCT_TEST_CASE_METHOD(className, ...)         \
    INTERNAL_CATCH_EXPAND_VARGS(                                    \
        INTERNAL_CATCH_TEMPLATE_PRODUCT_TEST_CASE_METHOD(className, \
                                                         __VA_ARGS__))
  #define TEMPLATE_PRODUCT_TEST_CASE_METHOD_SIG(className, ...)         \
    INTERNAL_CATCH_EXPAND_VARGS(                                        \
        INTERNAL_CATCH_TEMPLATE_PRODUCT_TEST_CASE_METHOD_SIG(className, \
                                                             __VA_ARGS__))
  #define TEMPLATE_LIST_TEST_CASE(...) \
    INTERNAL_CATCH_EXPAND_VARGS(       \
        INTERNAL_CATCH_TEMPLATE_LIST_TEST_CASE(__VA_ARGS__))
  #define TEMPLATE_LIST_TEST_CASE_METHOD(className, ...) \
    INTERNAL_CATCH_EXPAND_VARGS(                         \
        INTERNAL_CATCH_TEMPLATE_LIST_TEST_CASE_METHOD(className, __VA_ARGS__))
  #endif
  
  #if !defined(CATCH_CONFIG_RUNTIME_STATIC_REQUIRE)
  #define STATIC_REQUIRE(...)                 \
    static_assert(__VA_ARGS__, #__VA_ARGS__); \
    SUCCEED(#__VA_ARGS__)
  #define STATIC_REQUIRE_FALSE(...)                       \
    static_assert(!(__VA_ARGS__), "!(" #__VA_ARGS__ ")"); \
    SUCCEED("!(" #__VA_ARGS__ ")")
  #else
  #define STATIC_REQUIRE(...) REQUIRE(__VA_ARGS__)
  #define STATIC_REQUIRE_FALSE(...) REQUIRE_FALSE(__VA_ARGS__)
  #endif
  
  #endif
  
  #define CATCH_TRANSLATE_EXCEPTION(signature) \
    INTERNAL_CATCH_TRANSLATE_EXCEPTION(signature)
  
  // "BDD-style" convenience wrappers
  #define SCENARIO(...) TEST_CASE("Scenario: " __VA_ARGS__)
  #define SCENARIO_METHOD(className, ...) \
    INTERNAL_CATCH_TEST_CASE_METHOD(className, "Scenario: " __VA_ARGS__)
  
  #define GIVEN(desc) INTERNAL_CATCH_DYNAMIC_SECTION("    Given: " << desc)
  #define AND_GIVEN(desc) INTERNAL_CATCH_DYNAMIC_SECTION("And given: " << desc)
  #define WHEN(desc) INTERNAL_CATCH_DYNAMIC_SECTION("     When: " << desc)
  #define AND_WHEN(desc) INTERNAL_CATCH_DYNAMIC_SECTION(" And when: " << desc)
  #define THEN(desc) INTERNAL_CATCH_DYNAMIC_SECTION("     Then: " << desc)
  #define AND_THEN(desc) INTERNAL_CATCH_DYNAMIC_SECTION("      And: " << desc)
  
  #if defined(CATCH_CONFIG_ENABLE_BENCHMARKING)
  #define BENCHMARK(...)                                            \
    INTERNAL_CATCH_BENCHMARK(                                       \
        INTERNAL_CATCH_UNIQUE_NAME(____C_A_T_C_H____B_E_N_C_H____), \
        INTERNAL_CATCH_GET_1_ARG(__VA_ARGS__, , ),                  \
        INTERNAL_CATCH_GET_2_ARG(__VA_ARGS__, , ))
  #define BENCHMARK_ADVANCED(name)     \
    INTERNAL_CATCH_BENCHMARK_ADVANCED( \
        INTERNAL_CATCH_UNIQUE_NAME(____C_A_T_C_H____B_E_N_C_H____), name)
  #endif // CATCH_CONFIG_ENABLE_BENCHMARKING
  
  using Catch::Detail::Approx;
  
  #else // CATCH_CONFIG_DISABLE
  
  //////
  // If this config identifier is defined then all CATCH macros are prefixed with
  // CATCH_
  #ifdef CATCH_CONFIG_PREFIX_ALL
  
  #define CATCH_REQUIRE(...) (void)(0)
  #define CATCH_REQUIRE_FALSE(...) (void)(0)
  
  #define CATCH_REQUIRE_THROWS(...) (void)(0)
  #define CATCH_REQUIRE_THROWS_AS(expr, exceptionType) (void)(0)
  #define CATCH_REQUIRE_THROWS_WITH(expr, matcher) (void)(0)
  #if !defined(CATCH_CONFIG_DISABLE_MATCHERS)
  #define CATCH_REQUIRE_THROWS_MATCHES(expr, exceptionType, matcher) (void)(0)
  #endif // CATCH_CONFIG_DISABLE_MATCHERS
  #define CATCH_REQUIRE_NOTHROW(...) (void)(0)
  
  #define CATCH_CHECK(...) (void)(0)
  #define CATCH_CHECK_FALSE(...) (void)(0)
  #define CATCH_CHECKED_IF(...) if (__VA_ARGS__)
  #define CATCH_CHECKED_ELSE(...) if (!(__VA_ARGS__))
  #define CATCH_CHECK_NOFAIL(...) (void)(0)
  
  #define CATCH_CHECK_THROWS(...) (void)(0)
  #define CATCH_CHECK_THROWS_AS(expr, exceptionType) (void)(0)
  #define CATCH_CHECK_THROWS_WITH(expr, matcher) (void)(0)
  #if !defined(CATCH_CONFIG_DISABLE_MATCHERS)
  #define CATCH_CHECK_THROWS_MATCHES(expr, exceptionType, matcher) (void)(0)
  #endif // CATCH_CONFIG_DISABLE_MATCHERS
  #define CATCH_CHECK_NOTHROW(...) (void)(0)
  
  #if !defined(CATCH_CONFIG_DISABLE_MATCHERS)
  #define CATCH_CHECK_THAT(arg, matcher) (void)(0)
  
  #define CATCH_REQUIRE_THAT(arg, matcher) (void)(0)
  #endif // CATCH_CONFIG_DISABLE_MATCHERS
  
  #define CATCH_INFO(msg) (void)(0)
  #define CATCH_UNSCOPED_INFO(msg) (void)(0)
  #define CATCH_WARN(msg) (void)(0)
  #define CATCH_CAPTURE(msg) (void)(0)
  
  #define CATCH_TEST_CASE(...)               \
    INTERNAL_CATCH_TESTCASE_NO_REGISTRATION( \
        INTERNAL_CATCH_UNIQUE_NAME(____C_A_T_C_H____T_E_S_T____))
  #define CATCH_TEST_CASE_METHOD(className, ...) \
    INTERNAL_CATCH_TESTCASE_NO_REGISTRATION(     \
        INTERNAL_CATCH_UNIQUE_NAME(____C_A_T_C_H____T_E_S_T____))
  #define CATCH_METHOD_AS_TEST_CASE(method, ...)
  #define CATCH_REGISTER_TEST_CASE(Function, ...) (void)(0)
  #define CATCH_SECTION(...)
  #define CATCH_DYNAMIC_SECTION(...)
  #define CATCH_FAIL(...) (void)(0)
  #define CATCH_FAIL_CHECK(...) (void)(0)
  #define CATCH_SUCCEED(...) (void)(0)
  
  #define CATCH_ANON_TEST_CASE()             \
    INTERNAL_CATCH_TESTCASE_NO_REGISTRATION( \
        INTERNAL_CATCH_UNIQUE_NAME(____C_A_T_C_H____T_E_S_T____))
  
  #ifndef CATCH_CONFIG_TRADITIONAL_MSVC_PREPROCESSOR
  #define CATCH_TEMPLATE_TEST_CASE(...) \
    INTERNAL_CATCH_TEMPLATE_TEST_CASE_NO_REGISTRATION(__VA_ARGS__)
  #define CATCH_TEMPLATE_TEST_CASE_SIG(...) \
    INTERNAL_CATCH_TEMPLATE_TEST_CASE_SIG_NO_REGISTRATION(__VA_ARGS__)
  #define CATCH_TEMPLATE_TEST_CASE_METHOD(className, ...)               \
    INTERNAL_CATCH_TEMPLATE_TEST_CASE_METHOD_NO_REGISTRATION(className, \
                                                             __VA_ARGS__)
  #define CATCH_TEMPLATE_TEST_CASE_METHOD_SIG(className, ...)               \
    INTERNAL_CATCH_TEMPLATE_TEST_CASE_METHOD_SIG_NO_REGISTRATION(className, \
                                                                 __VA_ARGS__)
  #define CATCH_TEMPLATE_PRODUCT_TEST_CASE(...) \
    CATCH_TEMPLATE_TEST_CASE(__VA_ARGS__)
  #define CATCH_TEMPLATE_PRODUCT_TEST_CASE_SIG(...) \
    CATCH_TEMPLATE_TEST_CASE(__VA_ARGS__)
  #define CATCH_TEMPLATE_PRODUCT_TEST_CASE_METHOD(className, ...) \
    CATCH_TEMPLATE_TEST_CASE_METHOD(className, __VA_ARGS__)
  #define CATCH_TEMPLATE_PRODUCT_TEST_CASE_METHOD_SIG(className, ...) \
    CATCH_TEMPLATE_TEST_CASE_METHOD(className, __VA_ARGS__)
  #else
  #define CATCH_TEMPLATE_TEST_CASE(...) \
    INTERNAL_CATCH_EXPAND_VARGS(        \
        INTERNAL_CATCH_TEMPLATE_TEST_CASE_NO_REGISTRATION(__VA_ARGS__))
  #define CATCH_TEMPLATE_TEST_CASE_SIG(...) \
    INTERNAL_CATCH_EXPAND_VARGS(            \
        INTERNAL_CATCH_TEMPLATE_TEST_CASE_SIG_NO_REGISTRATION(__VA_ARGS__))
  #define CATCH_TEMPLATE_TEST_CASE_METHOD(className, ...)                   \
    INTERNAL_CATCH_EXPAND_VARGS(                                            \
        INTERNAL_CATCH_TEMPLATE_TEST_CASE_METHOD_NO_REGISTRATION(className, \
                                                                 __VA_ARGS__))
  #define CATCH_TEMPLATE_TEST_CASE_METHOD_SIG(className, ...)         \
    INTERNAL_CATCH_EXPAND_VARGS(                                      \
        INTERNAL_CATCH_TEMPLATE_TEST_CASE_METHOD_SIG_NO_REGISTRATION( \
            className, __VA_ARGS__))
  #define CATCH_TEMPLATE_PRODUCT_TEST_CASE(...) \
    CATCH_TEMPLATE_TEST_CASE(__VA_ARGS__)
  #define CATCH_TEMPLATE_PRODUCT_TEST_CASE_SIG(...) \
    CATCH_TEMPLATE_TEST_CASE(__VA_ARGS__)
  #define CATCH_TEMPLATE_PRODUCT_TEST_CASE_METHOD(className, ...) \
    CATCH_TEMPLATE_TEST_CASE_METHOD(className, __VA_ARGS__)
  #define CATCH_TEMPLATE_PRODUCT_TEST_CASE_METHOD_SIG(className, ...) \
    CATCH_TEMPLATE_TEST_CASE_METHOD(className, __VA_ARGS__)
  #endif
  
  // "BDD-style" convenience wrappers
  #define CATCH_SCENARIO(...)                \
    INTERNAL_CATCH_TESTCASE_NO_REGISTRATION( \
        INTERNAL_CATCH_UNIQUE_NAME(____C_A_T_C_H____T_E_S_T____))
  #define CATCH_SCENARIO_METHOD(className, ...)     \
    INTERNAL_CATCH_TESTCASE_METHOD_NO_REGISTRATION( \
        INTERNAL_CATCH_UNIQUE_NAME(____C_A_T_C_H____T_E_S_T____), className)
  #define CATCH_GIVEN(desc)
  #define CATCH_AND_GIVEN(desc)
  #define CATCH_WHEN(desc)
  #define CATCH_AND_WHEN(desc)
  #define CATCH_THEN(desc)
  #define CATCH_AND_THEN(desc)
  
  #define CATCH_STATIC_REQUIRE(...) (void)(0)
  #define CATCH_STATIC_REQUIRE_FALSE(...) (void)(0)
  
  // If CATCH_CONFIG_PREFIX_ALL is not defined then the CATCH_ prefix is not
  // required
  #else
  
  #define REQUIRE(...) (void)(0)
  #define REQUIRE_FALSE(...) (void)(0)
  
  #define REQUIRE_THROWS(...) (void)(0)
  #define REQUIRE_THROWS_AS(expr, exceptionType) (void)(0)
  #define REQUIRE_THROWS_WITH(expr, matcher) (void)(0)
  #if !defined(CATCH_CONFIG_DISABLE_MATCHERS)
  #define REQUIRE_THROWS_MATCHES(expr, exceptionType, matcher) (void)(0)
  #endif // CATCH_CONFIG_DISABLE_MATCHERS
  #define REQUIRE_NOTHROW(...) (void)(0)
  
  #define CHECK(...) (void)(0)
  #define CHECK_FALSE(...) (void)(0)
  #define CHECKED_IF(...) if (__VA_ARGS__)
  #define CHECKED_ELSE(...) if (!(__VA_ARGS__))
  #define CHECK_NOFAIL(...) (void)(0)
  
  #define CHECK_THROWS(...) (void)(0)
  #define CHECK_THROWS_AS(expr, exceptionType) (void)(0)
  #define CHECK_THROWS_WITH(expr, matcher) (void)(0)
  #if !defined(CATCH_CONFIG_DISABLE_MATCHERS)
  #define CHECK_THROWS_MATCHES(expr, exceptionType, matcher) (void)(0)
  #endif // CATCH_CONFIG_DISABLE_MATCHERS
  #define CHECK_NOTHROW(...) (void)(0)
  
  #if !defined(CATCH_CONFIG_DISABLE_MATCHERS)
  #define CHECK_THAT(arg, matcher) (void)(0)
  
  #define REQUIRE_THAT(arg, matcher) (void)(0)
  #endif // CATCH_CONFIG_DISABLE_MATCHERS
  
  #define INFO(msg) (void)(0)
  #define UNSCOPED_INFO(msg) (void)(0)
  #define WARN(msg) (void)(0)
  #define CAPTURE(msg) (void)(0)
  
  #define TEST_CASE(...)                     \
    INTERNAL_CATCH_TESTCASE_NO_REGISTRATION( \
        INTERNAL_CATCH_UNIQUE_NAME(____C_A_T_C_H____T_E_S_T____))
  #define TEST_CASE_METHOD(className, ...)   \
    INTERNAL_CATCH_TESTCASE_NO_REGISTRATION( \
        INTERNAL_CATCH_UNIQUE_NAME(____C_A_T_C_H____T_E_S_T____))
  #define METHOD_AS_TEST_CASE(method, ...)
  #define REGISTER_TEST_CASE(Function, ...) (void)(0)
  #define SECTION(...)
  #define DYNAMIC_SECTION(...)
  #define FAIL(...) (void)(0)
  #define FAIL_CHECK(...) (void)(0)
  #define SUCCEED(...) (void)(0)
  #define ANON_TEST_CASE()                   \
    INTERNAL_CATCH_TESTCASE_NO_REGISTRATION( \
        INTERNAL_CATCH_UNIQUE_NAME(____C_A_T_C_H____T_E_S_T____))
  
  #ifndef CATCH_CONFIG_TRADITIONAL_MSVC_PREPROCESSOR
  #define TEMPLATE_TEST_CASE(...) \
    INTERNAL_CATCH_TEMPLATE_TEST_CASE_NO_REGISTRATION(__VA_ARGS__)
  #define TEMPLATE_TEST_CASE_SIG(...) \
    INTERNAL_CATCH_TEMPLATE_TEST_CASE_SIG_NO_REGISTRATION(__VA_ARGS__)
  #define TEMPLATE_TEST_CASE_METHOD(className, ...)                     \
    INTERNAL_CATCH_TEMPLATE_TEST_CASE_METHOD_NO_REGISTRATION(className, \
                                                             __VA_ARGS__)
  #define TEMPLATE_TEST_CASE_METHOD_SIG(className, ...)                     \
    INTERNAL_CATCH_TEMPLATE_TEST_CASE_METHOD_SIG_NO_REGISTRATION(className, \
                                                                 __VA_ARGS__)
  #define TEMPLATE_PRODUCT_TEST_CASE(...) TEMPLATE_TEST_CASE(__VA_ARGS__)
  #define TEMPLATE_PRODUCT_TEST_CASE_SIG(...) TEMPLATE_TEST_CASE(__VA_ARGS__)
  #define TEMPLATE_PRODUCT_TEST_CASE_METHOD(className, ...) \
    TEMPLATE_TEST_CASE_METHOD(className, __VA_ARGS__)
  #define TEMPLATE_PRODUCT_TEST_CASE_METHOD_SIG(className, ...) \
    TEMPLATE_TEST_CASE_METHOD(className, __VA_ARGS__)
  #else
  #define TEMPLATE_TEST_CASE(...) \
    INTERNAL_CATCH_EXPAND_VARGS(  \
        INTERNAL_CATCH_TEMPLATE_TEST_CASE_NO_REGISTRATION(__VA_ARGS__))
  #define TEMPLATE_TEST_CASE_SIG(...) \
    INTERNAL_CATCH_EXPAND_VARGS(      \
        INTERNAL_CATCH_TEMPLATE_TEST_CASE_SIG_NO_REGISTRATION(__VA_ARGS__))
  #define TEMPLATE_TEST_CASE_METHOD(className, ...)                         \
    INTERNAL_CATCH_EXPAND_VARGS(                                            \
        INTERNAL_CATCH_TEMPLATE_TEST_CASE_METHOD_NO_REGISTRATION(className, \
                                                                 __VA_ARGS__))
  #define TEMPLATE_TEST_CASE_METHOD_SIG(className, ...)               \
    INTERNAL_CATCH_EXPAND_VARGS(                                      \
        INTERNAL_CATCH_TEMPLATE_TEST_CASE_METHOD_SIG_NO_REGISTRATION( \
            className, __VA_ARGS__))
  #define TEMPLATE_PRODUCT_TEST_CASE(...) TEMPLATE_TEST_CASE(__VA_ARGS__)
  #define TEMPLATE_PRODUCT_TEST_CASE_SIG(...) TEMPLATE_TEST_CASE(__VA_ARGS__)
  #define TEMPLATE_PRODUCT_TEST_CASE_METHOD(className, ...) \
    TEMPLATE_TEST_CASE_METHOD(className, __VA_ARGS__)
  #define TEMPLATE_PRODUCT_TEST_CASE_METHOD_SIG(className, ...) \
    TEMPLATE_TEST_CASE_METHOD(className, __VA_ARGS__)
  #endif
  
  #define STATIC_REQUIRE(...) (void)(0)
  #define STATIC_REQUIRE_FALSE(...) (void)(0)
  
  #endif
  
  #define CATCH_TRANSLATE_EXCEPTION(signature)                          \
    INTERNAL_CATCH_TRANSLATE_EXCEPTION_NO_REG(                          \
        INTERNAL_CATCH_UNIQUE_NAME(catch_internal_ExceptionTranslator), \
        signature)
  
  // "BDD-style" convenience wrappers
  #define SCENARIO(...)                      \
    INTERNAL_CATCH_TESTCASE_NO_REGISTRATION( \
        INTERNAL_CATCH_UNIQUE_NAME(____C_A_T_C_H____T_E_S_T____))
  #define SCENARIO_METHOD(className, ...)           \
    INTERNAL_CATCH_TESTCASE_METHOD_NO_REGISTRATION( \
        INTERNAL_CATCH_UNIQUE_NAME(____C_A_T_C_H____T_E_S_T____), className)
  
  #define GIVEN(desc)
  #define AND_GIVEN(desc)
  #define WHEN(desc)
  #define AND_WHEN(desc)
  #define THEN(desc)
  #define AND_THEN(desc)
  
  using Catch::Detail::Approx;
  
  #endif
  
  #endif // ! CATCH_CONFIG_IMPL_ONLY
  
  // start catch_reenable_warnings.h
  
  #ifdef __clang__
  #ifdef __ICC // icpc defines the __clang__ macro
  #pragma warning(pop)
  #else
  #pragma clang diagnostic pop
  #endif
  #elif defined __GNUC__
  #pragma GCC diagnostic pop
  #endif
  
  // end catch_reenable_warnings.h
  // end catch.hpp
  #endif // TWOBLUECUBES_SINGLE_INCLUDE_CATCH_HPP_INCLUDED
  