libstdc++-v3/testsuite/21_strings/basic_string_view/inserters/wchar_t/1.cc

   1 // { dg-do run { target c++17 } }
   2
   3 // Copyright (C) 2013-2023 Free Software Foundation, Inc.
   4 //
   5 // This file is part of the GNU ISO C++ Library.  This library is free
   6 // software; you can redistribute it and/or modify it under the
   7 // terms of the GNU General Public License as published by the
   8 // Free Software Foundation; either version 3, or (at your option)
   9 // any later version.
  10
  11 // This library is distributed in the hope that it will be useful,
  12 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  13 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14 // GNU General Public License for more details.
  15
  16 // You should have received a copy of the GNU General Public License along
  17 // with this library; see the file COPYING3.  If not see
  18 // <http://www.gnu.org/licenses/>.
  19
  20 // inserters
  21
  22 // NB: This file is predicated on sstreams, and ostreams
  23 // working, not to mention other major details like char_traits, and
  24 // all of the string_view class.
  25
  26 #include <string_view>
  27 #include <stdexcept>
  28 #include <sstream>
  29 #include <fstream>
  30 #include <iostream>
  31 #include <testsuite_hooks.h>
  32
  33 void
  34 test01()
  35 {
  36   typedef std::wstring_view::size_type csize_type;
  37   typedef std::wstring_view::const_reference cref;
  38   typedef std::wstring_view::reference ref;
  39
  40   const std::wstring_view str01(L"sailing grand traverse bay\n"
  41                L"\t\t\t    from Elk Rapids to the point reminds me of miles");
  42   const std::wstring_view str02(L"sailing");
  43   const std::wstring_view str03(L"grand");
  44   const std::wstring_view str04(L"traverse");
  45   const std::wstring_view str05;
  46   std::wstring_view str10;
  47
  48   // ostream& operator<<(ostream&, const basic_string_view&)
  49   std::wostringstream ostrs01;
  50   try
  51     {
  52       ostrs01 << str01;
  53       VERIFY( ostrs01.str() == str01 );
  54     }
  55   catch(std::exception& fail)
  56     {
  57       VERIFY( false );
  58     }
  59
  60   std::wstring_view hello_world;
  61   std::wcout << hello_world;
  62 }
  63
  64 int
  65 main()
  66 {
  67   test01();
  68
  69   return 0;
  70 }