libstdc++-v3/testsuite/20_util/pointer_traits/requirements/typedefs.cc

   1 // { dg-do compile { target c++11 } }
   2 //
   3 // Copyright (C) 2011-2022 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 //
  21 // NB: This file is for testing memory with NO OTHER INCLUDES.
  22
  23 #include <memory>
  24
  25 template<typename Ptr>
  26 void test01()
  27 {
  28   // Check for required typedefs
  29   typedef std::pointer_traits<Ptr>              test_type;
  30   typedef typename test_type::pointer           pointer;
  31   typedef typename test_type::element_type      element_type;
  32   typedef typename test_type::difference_type   difference_type;
  33   typedef typename test_type::template rebind<char> rebind_type;
  34 }
  35
  36 int main()
  37 {
  38   test01<int*>();
  39   test01<void*>();
  40   test01<std::shared_ptr<int>>();
  41   test01<std::shared_ptr<void>>();
  42   test01<std::unique_ptr<int>>();
  43   test01<std::unique_ptr<void>>();
  44 }