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// { dg-do run { target c++11 } }
// Copyright (C) 2007-2022 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/>.
// 20.6.6.2 Template class shared_ptr [util.smartptr.shared]
#include <memory>
#include <testsuite_hooks.h>
#include <testsuite_allocator.h>
using __gnu_test::tracker_allocator_counter;
using __gnu_test::tracker_allocator;
struct A { };
void deletefunc(A* p) { delete p; }
struct D
{
void operator()(A* p) { delete p; ++delete_count; }
static long delete_count;
};
long D::delete_count = 0;
// 20.6.6.2.1 shared_ptr constructors [util.smartptr.shared.const]
// Construction with allocator
int
test01()
{
tracker_allocator_counter::reset();
std::shared_ptr<A> p1(new A, deletefunc, tracker_allocator<A>());
std::size_t const sz = tracker_allocator_counter::get_allocation_count();
VERIFY( sz > 0 );
{
std::shared_ptr<A> p2(p1);
VERIFY( p2.use_count() == 2 );
VERIFY( tracker_allocator_counter::get_allocation_count() == sz );
VERIFY( tracker_allocator_counter::get_deallocation_count() == 0 );
}
VERIFY( p1.use_count() == 1 );
VERIFY( tracker_allocator_counter::get_allocation_count() == sz );
VERIFY( tracker_allocator_counter::get_deallocation_count() == 0 );
p1.reset();
VERIFY( p1.use_count() == 0 );
VERIFY( tracker_allocator_counter::get_allocation_count() == sz );
VERIFY( tracker_allocator_counter::get_deallocation_count() == sz );
return 0;
}
// Construction with allocator
int
test02()
{
tracker_allocator_counter::reset();
std::shared_ptr<A> p1(new A, deletefunc, tracker_allocator<A>());
std::size_t const sz1 = tracker_allocator_counter::get_allocation_count();
VERIFY( sz1 > 0 );
std::shared_ptr<A> p2(new A, D(), tracker_allocator<A>());
std::size_t const sz2 = tracker_allocator_counter::get_allocation_count();
VERIFY( sz2 > sz1 );
VERIFY( tracker_allocator_counter::get_deallocation_count() == 0 );
p1 = p2;
VERIFY( p2.use_count() == 2 );
VERIFY( tracker_allocator_counter::get_allocation_count() == sz2 );
VERIFY( tracker_allocator_counter::get_deallocation_count() == sz1 );
p1.reset();
VERIFY( p2.use_count() == 1 );
VERIFY( tracker_allocator_counter::get_allocation_count() == sz2 );
VERIFY( tracker_allocator_counter::get_deallocation_count() == sz1 );
p2.reset();
VERIFY( tracker_allocator_counter::get_allocation_count() == sz2 );
VERIFY( tracker_allocator_counter::get_deallocation_count() == sz2 );
VERIFY( D::delete_count == 1 );
return 0;
}
int
main()
{
test01();
test02();
return 0;
}
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