text: //===----------------------------------------------------------------------===//
  //
  // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
  // See https://llvm.org/LICENSE.txt for license information.
  // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
  //
  //===----------------------------------------------------------------------===//
  
  // <string>
  
  // template<class charT, class traits, class Allocator>
  //   basic_ostream<charT, traits>&
  //   operator<<(basic_ostream<charT, traits>& os,
  //              const basic_string<charT,traits,Allocator>& str);
  
  #include <string>
  #include <sstream>
  #include <cassert>
  
  #include "test_macros.h"
  #include "min_allocator.h"
  
  int main(int, char**)
  {
      {
          std::ostringstream out;
          std::string s("some text");
          out << s;
          assert(out.good());
          assert(s == out.str());
      }
      {
          std::ostringstream out;
          std::string s("some text");
          out.width(12);
          out << s;
          assert(out.good());
          assert("   " + s == out.str());
      }
  #ifndef TEST_HAS_NO_WIDE_CHARACTERS
      {
          std::wostringstream out;
          std::wstring s(L"some text");
          out << s;
          assert(out.good());
          assert(s == out.str());
      }
      {
          std::wostringstream out;
          std::wstring s(L"some text");
          out.width(12);
          out << s;
          assert(out.good());
          assert(L"   " + s == out.str());
      }
  #endif
  #if TEST_STD_VER >= 11
      {
          typedef std::basic_string<char, std::char_traits<char>, min_allocator<char>> S;
          std::basic_ostringstream<S::value_type, S::traits_type, S::allocator_type> out;
          S s("some text");
          out << s;
          assert(out.good());
          assert(s == out.str());
      }
      {
          typedef std::basic_string<char, std::char_traits<char>, min_allocator<char>> S;
          std::basic_ostringstream<S::value_type, S::traits_type, S::allocator_type> out;
          S s("some text");
          out.width(12);
          out << s;
          assert(out.good());
          assert("   " + s == out.str());
      }
  #ifndef TEST_HAS_NO_WIDE_CHARACTERS
      {
          typedef std::basic_string<wchar_t, std::char_traits<wchar_t>, min_allocator<wchar_t>> S;
          std::basic_ostringstream<S::value_type, S::traits_type, S::allocator_type> out;
          S s(L"some text");
          out << s;
          assert(out.good());
          assert(s == out.str());
      }
      {
          typedef std::basic_string<wchar_t, std::char_traits<wchar_t>, min_allocator<wchar_t>> S;
          std::basic_ostringstream<S::value_type, S::traits_type, S::allocator_type> out;
          S s(L"some text");
          out.width(12);
          out << s;
          assert(out.good());
          assert(L"   " + s == out.str());
      }
  #endif // TEST_HAS_NO_WIDE_CHARACTERS
  #endif // TEST_STD_VER >= 11
  
    return 0;
  }
  