gdb/unittests/basic_string_view/range_access/char/1.cc

   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
  26 test01()
  27 {
  28   std::string_view s("Hello, World!");
  29   std::begin(s);
  30   std::end(s);
  31   std::rbegin(s);
  32   std::rend(s);
  33 }
  34
  35 void
  36 test02()
  37 {
  38   constexpr std::string_view s("Hello, World!");
  39   [[maybe_unused]] constexpr auto b = std::begin(s);
  40   [[maybe_unused]] constexpr auto e = std::end(s);
  41   [[maybe_unused]] constexpr auto cb = std::cbegin(s);
  42   [[maybe_unused]] constexpr auto ce = std::cend(s);
  43   [[maybe_unused]] constexpr auto rb = std::rbegin(s);
  44   [[maybe_unused]] constexpr auto re = std::rend(s);
  45   [[maybe_unused]] constexpr auto crb = std::crbegin(s);
  46   [[maybe_unused]] constexpr auto cre = std::crend(s);
  47 }