libstdc++-v3/testsuite/21_strings/basic_string_view/literals/types.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 #include <string_view>
  21 #include <type_traits>
  22
  23 #ifdef _GLIBCXX_USE_CHAR8_T
  24 using std::u8string_view;
  25 #else
  26 using u8string_view = std::string_view;
  27 #endif
  28
  29 void
  30 test01()
  31 {
  32   using namespace std::literals::string_view_literals;
  33
  34   static_assert(std::is_same<decltype("Hello"sv), std::string_view>::value,
  35                 "\"Hello\"s is std::string_view");
  36
  37   static_assert(std::is_same<decltype(u8"Hello"sv), u8string_view>::value,
  38                 "u8\"Hello\"s is std::string_view");
  39
  40   static_assert(std::is_same<decltype(L"Hello"sv), std::wstring_view>::value,
  41                 "L\"Hello\"s is std::wstring_view");
  42
  43   static_assert(std::is_same<decltype(u"Hello"sv), std::u16string_view>::value,
  44                 "u\"Hello\"s is std::u16string_view");
  45
  46   static_assert(std::is_same<decltype(U"Hello"sv), std::u32string_view>::value,
  47                 "U\"Hello\"s is std::u32string_view");
  48 }