1 // { dg-do compile } 2 // { dg-options "-std=gnu++17" } 3 4 // Copyright (C) 2013-2019 Free Software Foundation, Inc. 5 // 6 // This file is part of the GNU ISO C++ Library. This library is free 7 // software; you can redistribute it and/or modify it under the 8 // terms of the GNU General Public License as published by the 9 // Free Software Foundation; either version 3, or (at your option) 10 // any later version. 11 12 // This library is distributed in the hope that it will be useful, 13 // but WITHOUT ANY WARRANTY; without even the implied warranty of 14 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 15 // GNU General Public License for more details. 16 17 // You should have received a copy of the GNU General Public License along 18 // with this library; see the file COPYING3. If not see 19 // <http://www.gnu.org/licenses/>. 20 21 // C++17 27.7, range access [iterator.range] 22 23 #include <string_view> 24 25 void test01()26test01() 27 { 28 std::wstring_view ws(L"Hello, World!"); 29 std::begin(ws); 30 std::end(ws); 31 std::rbegin(ws); 32 std::rend(ws); 33 } 34 35 void test02()36test02() 37 { 38 constexpr std::wstring_view ws(L"Hello, World!"); 39 [[maybe_unused]] constexpr auto b = std::begin(ws); 40 [[maybe_unused]] constexpr auto e = std::end(ws); 41 [[maybe_unused]] constexpr auto cb = std::cbegin(ws); 42 [[maybe_unused]] constexpr auto ce = std::cend(ws); 43 [[maybe_unused]] constexpr auto rb = std::rbegin(ws); 44 [[maybe_unused]] constexpr auto re = std::rend(ws); 45 [[maybe_unused]] constexpr auto crb = std::crbegin(ws); 46 [[maybe_unused]] constexpr auto cre = std::crend(ws); 47 } 48