libstdc++-v3/testsuite/20_util/synchronized_pool_resource/cons.cc

   1 // Copyright (C) 2018-2019 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 run }
  19 // { dg-options "-std=gnu++17 -pthread" }
  20 // { dg-require-effective-target c++17 }
  21 // { dg-require-effective-target pthread }
  22 // { dg-require-gthreads "" }
  23
  24 #include <memory_resource>
  25 #include <testsuite_hooks.h>
  26 #include <testsuite_allocator.h>
  27
  28 void
  29 test01()
  30 {
  31   __gnu_test::memory_resource test_mr1, test_mr2;
  32   __gnu_test::default_resource_mgr mgr(&test_mr1);
  33
  34   const std::pmr::pool_options opts{1, 2};
  35   using std::pmr::synchronized_pool_resource;
  36
  37   synchronized_pool_resource p1 = {opts, &test_mr2};
  38   VERIFY( p1.upstream_resource() == &test_mr2 );
  39   synchronized_pool_resource p2;
  40   VERIFY( p2.upstream_resource() == std::pmr::get_default_resource() );
  41   synchronized_pool_resource p3{&test_mr2};
  42   VERIFY( p3.upstream_resource() == &test_mr2 );
  43   synchronized_pool_resource p4{opts};
  44   VERIFY( p4.upstream_resource() == std::pmr::get_default_resource() );
  45
  46   static_assert(!std::is_copy_constructible_v<synchronized_pool_resource>);
  47   static_assert(!std::is_copy_assignable_v<synchronized_pool_resource>);
  48   static_assert(std::is_destructible_v<synchronized_pool_resource>);
  49 }
  50
  51 void
  52 test02()
  53 {
  54   __gnu_test::memory_resource test_mr1, test_mr2;
  55   __gnu_test::default_resource_mgr mgr(&test_mr1);
  56
  57   const std::pmr::pool_options opts{1, 2};
  58
  59   struct derived : std::pmr::synchronized_pool_resource
  60   {
  61     using synchronized_pool_resource::synchronized_pool_resource;
  62   };
  63
  64   derived p1 = {opts, &test_mr2};
  65   VERIFY( p1.upstream_resource() == &test_mr2 );
  66   derived p2;
  67   VERIFY( p2.upstream_resource() == std::pmr::get_default_resource() );
  68   derived p3{&test_mr2};
  69   VERIFY( p3.upstream_resource() == &test_mr2 );
  70   derived p4{opts};
  71   VERIFY( p4.upstream_resource() == std::pmr::get_default_resource() );
  72
  73   static_assert(!std::is_copy_constructible_v<derived>);
  74   static_assert(!std::is_copy_assignable_v<derived>);
  75   static_assert(std::is_destructible_v<derived>);
  76 }
  77
  78 int
  79 main()
  80 {
  81   test01();
  82   test02();
  83 }