libstdc++-v3/testsuite/21_strings/basic_string/literals/types.cc

   1 // { dg-do compile { target c++14 } }
   2
   3 // Copyright (C) 2013-2016 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>
  21 #include <type_traits>
  22
  23 void
  24 test01()
  25 {
  26   using namespace std::literals::string_literals;
  27
  28   static_assert(std::is_same<decltype("Hello"s), std::string>::value,
  29                 "\"Hello\"s is std::string");
  30
  31   static_assert(std::is_same<decltype(u8"Hello"s), std::string>::value,
  32                 "u8\"Hello\"s is std::string");
  33
  34 #ifdef _GLIBCXX_USE_WCHAR_T
  35   static_assert(std::is_same<decltype(L"Hello"s), std::wstring>::value,
  36                 "L\"Hello\"s is std::wstring");
  37 #endif
  38
  39   static_assert(std::is_same<decltype(u"Hello"s), std::u16string>::value,
  40                 "u\"Hello\"s is std::u16string");
  41
  42   static_assert(std::is_same<decltype(U"Hello"s), std::u32string>::value,
  43                 "U\"Hello\"s is std::u32string");
  44 }