libstdc++-v3/testsuite/20_util/scoped_allocator/requirements/explicit_instantiation.cc

   1 // { dg-do compile { target c++11 } }
   2 // FIXME [!HOSTED]: avoidable std::allocator use
   3 // { dg-require-effective-target hosted }
   4
   5 // Copyright (C) 2011-2022 Free Software Foundation, Inc.
   6 //
   7 // This file is part of the GNU ISO C++ Library.  This library is free
   8 // software; you can redistribute it and/or modify it under the
   9 // terms of the GNU General Public License as published by the
  10 // Free Software Foundation; either version 3, or (at your option)
  11 // any later version.
  12
  13 // This library is distributed in the hope that it will be useful,
  14 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  15 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16 // GNU General Public License for more details.
  17
  18 // You should have received a copy of the GNU General Public License along
  19 // with this library; see the file COPYING3.  If not see
  20 // <http://www.gnu.org/licenses/>.
  21
  22 // NB: This file is for testing memory with NO OTHER INCLUDES.
  23
  24 #include <scoped_allocator>
  25 #include <memory>
  26
  27 typedef short test_type;
  28
  29 template<typename T>
  30   struct minimal_allocator
  31   {
  32     typedef T value_type;
  33     minimal_allocator();
  34     template <typename U>
  35       minimal_allocator(const minimal_allocator<U>&);
  36     T* allocate(unsigned long);
  37     void deallocate(T*, unsigned long);
  38   };
  39
  40 namespace std
  41 {
  42   template struct scoped_allocator_adaptor<std::allocator<test_type>>;
  43
  44   template struct scoped_allocator_adaptor<minimal_allocator<test_type>>;
  45
  46   template struct scoped_allocator_adaptor<std::allocator<test_type>,
  47                                            minimal_allocator<test_type>>;
  48 }