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// Copyright (C) 2018-2022 Free Software Foundation, Inc.
//
// This file is part of the GNU ISO C++ Library. This library is free
// software; you can redistribute it and/or modify it under the
// terms of the GNU General Public License as published by the
// Free Software Foundation; either version 3, or (at your option)
// any later version.
// This library is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
// You should have received a copy of the GNU General Public License along
// with this library; see the file COPYING3. If not see
// <http://www.gnu.org/licenses/>.
// { dg-do run { target c++17 } }
#include <memory_resource>
#include <testsuite_allocator.h>
void
test01()
{
__gnu_test::memory_resource r;
const auto null = std::pmr::null_memory_resource();
const auto newdel = std::pmr::new_delete_resource();
std::pmr::set_default_resource(null);
{
std::pmr::monotonic_buffer_resource mr(&r);
VERIFY( mr.upstream_resource() == &r );
__gnu_test::default_resource_mgr _(newdel);
VERIFY( mr.upstream_resource() == &r );
}
{
std::pmr::monotonic_buffer_resource mr(128, &r);
VERIFY( mr.upstream_resource() == &r );
__gnu_test::default_resource_mgr _(newdel);
VERIFY( mr.upstream_resource() == &r );
}
{
unsigned char buf[64];
std::pmr::monotonic_buffer_resource mr((void*)buf, sizeof(buf), &r);
VERIFY( mr.upstream_resource() == &r );
__gnu_test::default_resource_mgr _(newdel);
VERIFY( mr.upstream_resource() == &r );
}
{
std::pmr::monotonic_buffer_resource mr;
VERIFY( mr.upstream_resource() == null );
__gnu_test::default_resource_mgr _(newdel);
VERIFY( mr.upstream_resource() == null );
}
{
std::pmr::monotonic_buffer_resource mr(64);
VERIFY( mr.upstream_resource() == null );
__gnu_test::default_resource_mgr _(newdel);
VERIFY( mr.upstream_resource() == null );
}
{
unsigned char buf[64];
std::pmr::monotonic_buffer_resource mr((void*)buf, sizeof(buf));
VERIFY( mr.upstream_resource() == null );
__gnu_test::default_resource_mgr _(newdel);
VERIFY( mr.upstream_resource() == null );
}
}
int
main()
{
test01();
}
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