libstdc++-v3/testsuite/21_strings/basic_string_view/typedefs.cc

   1 // { dg-options "-std=gnu++17" }
   2 // { dg-do compile }
   3
   4 // Copyright (C) 2014-2018 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 #include <string_view>
  22
  23 template<typename C, typename T>
  24   using check1_t = std::basic_string_view<C, T>;
  25
  26 using check2_t = std::string_view;
  27
  28 #ifdef _GLIBCXX_USE_C99_STDINT_TR1
  29 using check3_t = std::u16string_view;
  30 using check4_t = std::u32string_view;
  31 #endif
  32
  33 #ifdef _GLIBCXX_USE_WCHAR_T
  34 using check5_t = std::wstring_view;
  35 #endif
  36