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// { dg-do run { target c++11 } }
// Copyright (C) 2006-2022 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/>.
// 20.6.6.2.10 shared_ptr casts [util.smartptr.shared.cast]
#include <memory>
#include <testsuite_hooks.h>
#include <testsuite_tr1.h>
struct MyP { virtual ~MyP() { }; };
struct MyDP : MyP { };
void
test01()
{
using __gnu_test::check_ret_type;
using std::shared_ptr;
using std::static_pointer_cast;
using std::const_pointer_cast;
using std::dynamic_pointer_cast;
shared_ptr<double> spd;
shared_ptr<const int> spci;
shared_ptr<MyP> spa;
check_ret_type<shared_ptr<void>>(static_pointer_cast<void>(spd));
check_ret_type<shared_ptr<int>>(const_pointer_cast<int>(spci));
check_ret_type<shared_ptr<MyDP>>(dynamic_pointer_cast<MyDP>(spa));
}
void
test02()
{
using std::shared_ptr;
using std::static_pointer_cast;
using std::const_pointer_cast;
using std::dynamic_pointer_cast;
int* ptr = new int(1);
shared_ptr<const void> pcv(ptr);
auto pci = static_pointer_cast<const int>(pcv);
VERIFY(pci.use_count() == 2);
VERIFY(pcv.use_count() == 2);
VERIFY(pci.get() == ptr);
VERIFY(pcv.get() == ptr);
auto pi = const_pointer_cast<int>(pci);
VERIFY(pi.use_count() == 3);
VERIFY(pcv.use_count() == 3);
VERIFY(pi.get() == ptr);
VERIFY(pci.get() == ptr);
MyP* pptr = new MyP;
shared_ptr<MyP> pp(pptr);
auto pdp = dynamic_pointer_cast<MyDP>(pp);
VERIFY(pp.use_count() == 1);
VERIFY(pdp.use_count() == 0);
VERIFY(pdp.get() == nullptr);
VERIFY(pp.get() == pptr);
pptr = new MyDP;
pp.reset(pptr);
pdp = dynamic_pointer_cast<MyDP>(pp);
VERIFY(pp.use_count() == 2);
VERIFY(pdp.use_count() == 2);
VERIFY(pdp.get() == pptr);
VERIFY(pp.get() == pptr);
}
int main()
{
test01();
test02();
}
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