1// { dg-options "-std=gnu++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 33void 34test01() 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 64int 65main() 66{ 67 test01(); 68 69 return 0; 70} 71