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

   1 // Copyright (C) 2015-2024 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 // FIXME [!HOSTED]: avoidable std::allocator use
  20 // { dg-require-effective-target hosted }
  21
  22 #include <memory>
  23 #include <type_traits>
  24 #include <scoped_allocator>
  25
  26 template<typename T>
  27   struct Allocator : std::allocator<T>
  28   {
  29     template<typename U>
  30       struct rebind { using other = Allocator<U>; };
  31
  32     using propagate_on_container_copy_assignment = std::true_type;
  33     using propagate_on_container_move_assignment = std::true_type;
  34   };
  35
  36 template<typename... T>
  37   using alloc = std::scoped_allocator_adaptor<Allocator<T>...>;
  38
  39 void
  40 test01()
  41 {
  42   // Test partial specialization for sizeof...(InnerAlloc) == 0
  43   alloc<int> a;
  44   a = a;
  45   a = std::move(a);
  46 }
  47
  48 void
  49 test02()
  50 {
  51   // Test partial specialization for sizeof...(InnerAlloc) >= 1
  52   alloc<int, char> a;
  53   a = a;
  54   a = std::move(a);
  55 }