libstdc++-v3/testsuite/20_util/scoped_allocator/65279.cc

   1 // Copyright (C) 2015-2021 Free Software Foundation, Inc.
   2 //
   3 // This file is part of the GNU ISO C++ Library.  This library is free
   4 // software; you can redistribute it and/or modify it under the
   5 // terms of the GNU General Public License as published by the
   6 // Free Software Foundation; either version 3, or (at your option)
   7 // any later version.
   8
   9 // This library is distributed in the hope that it will be useful,
  10 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  11 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12 // GNU General Public License for more details.
  13
  14 // You should have received a copy of the GNU General Public License along
  15 // with this library; see the file COPYING3.  If not see
  16 // <http://www.gnu.org/licenses/>.
  17
  18 // { dg-do compile { target c++11 } }
  19
  20 #include <memory>
  21 #include <type_traits>
  22 #include <scoped_allocator>
  23
  24 template<typename T>
  25   struct Allocator : std::allocator<T>
  26   {
  27     template<typename U>
  28       struct rebind { using other = Allocator<U>; };
  29
  30     using propagate_on_container_copy_assignment = std::true_type;
  31     using propagate_on_container_move_assignment = std::true_type;
  32   };
  33
  34 template<typename... T>
  35   using alloc = std::scoped_allocator_adaptor<Allocator<T>...>;
  36
  37 void
  38 test01()
  39 {
  40   // Test partial specialization for sizeof...(InnerAlloc) == 0
  41   alloc<int> a;
  42   a = a;
  43   a = std::move(a);
  44 }
  45
  46 void
  47 test02()
  48 {
  49   // Test partial specialization for sizeof...(InnerAlloc) >= 1
  50   alloc<int, char> a;
  51   a = a;
  52   a = std::move(a);
  53 }