text: //  Copyright (c) 2017 Dynatrace
  //
  //  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 http://www.boost.org for most recent version.
  
  //  Compiler setup for IBM z/OS XL C/C++ compiler.
  
  // Oldest compiler version currently supported is 2.1 (V2R1)
  #if !defined(__IBMCPP__) || !defined(__COMPILER_VER__) || __COMPILER_VER__ < 0x42010000
  #  error "Compiler not supported or configured - please reconfigure"
  #endif
  
  #if __COMPILER_VER__ > 0x42010000
  #  if defined(BOOST_ASSERT_CONFIG)
  #     error "Unknown compiler version - please run the configure tests and report the results"
  #  endif
  #endif
  
  #define BOOST_COMPILER "IBM z/OS XL C/C++ version " BOOST_STRINGIZE(__COMPILER_VER__)
  #define BOOST_XLCPP_ZOS __COMPILER_VER__
  
  // -------------------------------------
  
  #include <features.h> // For __UU, __C99, __TR1, ...
  
  #if !defined(__IBMCPP_DEFAULTED_AND_DELETED_FUNCTIONS)
  #  define BOOST_NO_CXX11_DELETED_FUNCTIONS
  #  define BOOST_NO_CXX11_DEFAULTED_FUNCTIONS
  #  define BOOST_NO_CXX11_NON_PUBLIC_DEFAULTED_FUNCTIONS
  #endif
  
  // -------------------------------------
  
  #if defined(__UU) || defined(__C99) || defined(__TR1)
  #  define BOOST_HAS_LOG1P
  #  define BOOST_HAS_EXPM1
  #endif
  
  #if defined(__C99) || defined(__TR1)
  #  define BOOST_HAS_STDINT_H
  #else
  #  define BOOST_NO_FENV_H
  #endif
  
  // -------------------------------------
  
  #define BOOST_HAS_NRVO
  
  #if !defined(__RTTI_ALL__)
  #  define BOOST_NO_RTTI
  #endif
  
  #if !defined(_CPPUNWIND) && !defined(__EXCEPTIONS)
  #  define BOOST_NO_EXCEPTIONS
  #endif
  
  #if defined(_LONG_LONG) || defined(__IBMCPP_C99_LONG_LONG) || defined(__LL)
  #  define BOOST_HAS_LONG_LONG
  #else
  #  define BOOST_NO_LONG_LONG
  #endif
  
  #if defined(_LONG_LONG) || defined(__IBMCPP_C99_LONG_LONG) || defined(__LL) || defined(_LP64)
  #  define BOOST_HAS_MS_INT64
  #endif
  
  #define BOOST_NO_SFINAE_EXPR
  #define BOOST_NO_CXX11_SFINAE_EXPR
  
  #if defined(__IBMCPP_VARIADIC_TEMPLATES)
  #  define BOOST_HAS_VARIADIC_TMPL
  #else
  #  define BOOST_NO_CXX11_VARIADIC_TEMPLATES
  #  define BOOST_NO_CXX11_FUNCTION_TEMPLATE_DEFAULT_ARGS
  #endif
  
  #if defined(__IBMCPP_STATIC_ASSERT)
  #  define BOOST_HAS_STATIC_ASSERT
  #else
  #  define BOOST_NO_CXX11_STATIC_ASSERT
  #endif
  
  #if defined(__IBMCPP_RVALUE_REFERENCES)
  #  define BOOST_HAS_RVALUE_REFS
  #else
  #  define BOOST_NO_CXX11_RVALUE_REFERENCES
  #endif
  
  #if !defined(__IBMCPP_SCOPED_ENUM)
  #  define BOOST_NO_CXX11_SCOPED_ENUMS
  #endif
  
  #define BOOST_NO_CXX11_FIXED_LENGTH_VARIADIC_TEMPLATE_EXPANSION_PACKS
  #define BOOST_NO_CXX11_TEMPLATE_ALIASES
  #define BOOST_NO_CXX11_LOCAL_CLASS_TEMPLATE_PARAMETERS
  
  #if !defined(__IBMCPP_EXPLICIT_CONVERSION_OPERATORS)
  #  define BOOST_NO_CXX11_EXPLICIT_CONVERSION_OPERATORS
  #endif
  
  #if !defined(__IBMCPP_DECLTYPE)
  #  define BOOST_NO_CXX11_DECLTYPE
  #else
  #  define BOOST_HAS_DECLTYPE
  #endif
  #define BOOST_NO_CXX11_DECLTYPE_N3276
  
  #if !defined(__IBMCPP_INLINE_NAMESPACE)
  #  define BOOST_NO_CXX11_INLINE_NAMESPACES
  #endif
  
  #if !defined(__IBMCPP_AUTO_TYPEDEDUCTION)
  #  define BOOST_NO_CXX11_AUTO_MULTIDECLARATIONS
  #  define BOOST_NO_CXX11_AUTO_DECLARATIONS
  #  define BOOST_NO_CXX11_TRAILING_RESULT_TYPES
  #endif
  
  #if !defined(__IBM_CHAR32_T__)
  #  define BOOST_NO_CXX11_CHAR32_T
  #endif
  #if !defined(__IBM_CHAR16_T__)
  #  define BOOST_NO_CXX11_CHAR16_T
  #endif
  
  #if !defined(__IBMCPP_CONSTEXPR)
  #  define BOOST_NO_CXX11_CONSTEXPR
  #endif
  
  #define BOOST_NO_CXX11_UNIFIED_INITIALIZATION_SYNTAX
  #define BOOST_NO_CXX11_UNICODE_LITERALS
  #define BOOST_NO_CXX11_RAW_LITERALS
  #define BOOST_NO_CXX11_RANGE_BASED_FOR
  #define BOOST_NO_CXX11_NULLPTR
  #define BOOST_NO_CXX11_NOEXCEPT
  #define BOOST_NO_CXX11_LAMBDAS
  #define BOOST_NO_CXX11_USER_DEFINED_LITERALS
  #define BOOST_NO_CXX11_THREAD_LOCAL
  #define BOOST_NO_CXX11_REF_QUALIFIERS
  #define BOOST_NO_CXX11_FINAL
  #define BOOST_NO_CXX11_ALIGNAS
  #define BOOST_NO_CXX14_VARIABLE_TEMPLATES
  #define BOOST_NO_CXX14_RETURN_TYPE_DEDUCTION
  #define BOOST_NO_CXX14_AGGREGATE_NSDMI
  #define BOOST_NO_CXX14_INITIALIZED_LAMBDA_CAPTURES
  #define BOOST_NO_CXX14_GENERIC_LAMBDAS
  #define BOOST_NO_CXX14_DIGIT_SEPARATORS
  #define BOOST_NO_CXX14_DECLTYPE_AUTO
  #define BOOST_NO_CXX14_CONSTEXPR
  #define BOOST_NO_CXX14_BINARY_LITERALS
  #define BOOST_NO_CXX17_STRUCTURED_BINDINGS
  #define BOOST_NO_CXX17_INLINE_VARIABLES
  #define BOOST_NO_CXX17_FOLD_EXPRESSIONS
  
  // -------------------------------------
  
  #if defined(__IBM_ATTRIBUTES)
  #  define BOOST_FORCEINLINE inline __attribute__ ((__always_inline__))
  #  define BOOST_NOINLINE __attribute__ ((__noinline__))
  // No BOOST_ALIGNMENT - explicit alignment support is broken (V2R1).
  #endif
  
  extern "builtin" long __builtin_expect(long, long);
  
  #define BOOST_LIKELY(x) __builtin_expect((x) && true, 1)
  #define BOOST_UNLIKELY(x) __builtin_expect((x) && true, 0)
  