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

   1 // { dg-do compile { target c++17 } }
   2
   3 // Copyright (C) 2013-2024 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 // C++17 27.7, range access [iterator.range]
  21
  22 #include <string_view>
  23
  24 void
  25 test01()
  26 {
  27   std::wstring_view ws(L"Hello, World!");
  28   (void) std::begin(ws);
  29   (void) std::end(ws);
  30   (void) std::rbegin(ws);
  31   (void) std::rend(ws);
  32 }
  33
  34 void
  35 test02()
  36 {
  37   constexpr std::wstring_view ws(L"Hello, World!");
  38   [[maybe_unused]] constexpr auto b = std::begin(ws);
  39   [[maybe_unused]] constexpr auto e = std::end(ws);
  40   [[maybe_unused]] constexpr auto cb = std::cbegin(ws);
  41   [[maybe_unused]] constexpr auto ce = std::cend(ws);
  42   [[maybe_unused]] constexpr auto rb = std::rbegin(ws);
  43   [[maybe_unused]] constexpr auto re = std::rend(ws);
  44   [[maybe_unused]] constexpr auto crb = std::crbegin(ws);
  45   [[maybe_unused]] constexpr auto cre = std::crend(ws);
  46 }