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// Copyright (C) 2019-2022 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-options "-std=gnu++2a" }
// { dg-do run { target c++2a } }
#include <memory_resource>
#include <cstring>
#include <testsuite_hooks.h>
#include <testsuite_allocator.h>
void
test01()
{
__gnu_test::memory_resource res;
std::pmr::polymorphic_allocator<> alloc(&res);
static_assert( std::is_same_v<decltype(alloc)::value_type, std::byte> );
void* p = alloc.allocate_bytes(100);
VERIFY( res.number_of_active_allocations() == 1 );
alloc.deallocate_bytes(p, 100);
VERIFY( res.number_of_active_allocations() == 0 );
p = alloc.allocate_bytes(100, 64);
VERIFY( res.number_of_active_allocations() == 1 );
alloc.deallocate_bytes(p, 100, 64);
VERIFY( res.number_of_active_allocations() == 0 );
int* p1 = alloc.allocate_object<int>();
int* p2 = alloc.allocate_object<int>(2);
struct X { double d[10]; };
X* px = alloc.allocate_object<X>(20);
VERIFY( res.number_of_active_allocations() == 3 );
alloc.deallocate_object(p1);
alloc.deallocate_object(p2, 2);
alloc.deallocate_object(px, 20);
VERIFY( res.number_of_active_allocations() == 0 );
struct Y {
Y(int i, const char* s, bool* alive)
: i(i), s(s), alive(alive)
{ *alive = true; }
~Y() { *alive = false; }
int i;
const char* s;
bool* alive;
};
bool alive = false;
Y* py = alloc.new_object<Y>(1, "two", &alive);
VERIFY( alive );
VERIFY( py->i == 1 );
VERIFY( std::strcmp(py->s, "two") == 0 );
VERIFY( res.number_of_active_allocations() == 1 );
alloc.delete_object(py);
VERIFY( alive == false );
}
int
main()
{
test01();
}
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