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

   1 // { dg-options "-std=gnu++11" }
   2 // { dg-do compile }
   3
   4 // Copyright (C) 2012-2016 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
  18 // along with this library; see the file COPYING3.  If not see
  19 // <http://www.gnu.org/licenses/>.
  20
  21
  22 #include <memory>
  23 #include <type_traits>
  24
  25 // Check std::allocator for required typedefs.
  26
  27 using std::is_same;
  28 using std::allocator;
  29
  30 static_assert( is_same<allocator<int>::size_type, std::size_t>::value,
  31                "size_type" );
  32 static_assert( is_same<allocator<int>::difference_type, std::ptrdiff_t>::value,
  33                "difference_type" );
  34 static_assert( is_same<allocator<int>::pointer, int*>::value,
  35                "pointer" );
  36 static_assert( is_same<allocator<int>::const_pointer, const int*>::value,
  37                "const_pointer" );
  38 static_assert( is_same<allocator<int>::reference, int&>::value,
  39                "reference" );
  40 static_assert( is_same<allocator<int>::const_reference, const int&>::value,
  41                "const_reference" );
  42 static_assert( is_same<allocator<int>::value_type, int>::value,
  43                "value_type" );
  44
  45 static_assert( is_same<allocator<int>::rebind<char>::other,
  46                        allocator<char>>::value,
  47                "rebind::other" );
  48
  49 static_assert( is_same<allocator<int>::propagate_on_container_move_assignment,
  50                        std::true_type>::value,
  51                "propagate_on_container_move_assignment" );