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// { dg-do run { target c++20 } }
// { dg-require-effective-target hosted }
// Copyright (C) 2019-2024 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/>.
// 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;
using std::reinterpret_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>(std::move(spd)));
check_ret_type<shared_ptr<int>>(const_pointer_cast<int>(std::move(spci)));
check_ret_type<shared_ptr<MyP>>(dynamic_pointer_cast<MyP>(std::move(spa)));
#if __cpp_rtti
check_ret_type<shared_ptr<MyDP>>(dynamic_pointer_cast<MyDP>(std::move(spa)));
#endif
check_ret_type<shared_ptr<void>>(reinterpret_pointer_cast<void>(std::move(spd)));
check_ret_type<shared_ptr<const short>>(reinterpret_pointer_cast<const short>(std::move(spci)));
check_ret_type<shared_ptr<MyDP>>(reinterpret_pointer_cast<MyDP>(std::move(spa)));
}
void
test02()
{
using std::shared_ptr;
using std::static_pointer_cast;
using std::const_pointer_cast;
using std::dynamic_pointer_cast;
using std::reinterpret_pointer_cast;
int* ptr = new int(1);
shared_ptr<const void> pcv(ptr);
auto pci = static_pointer_cast<const int>(std::move(pcv));
VERIFY(pci.use_count() == 1);
VERIFY(pcv.use_count() == 0);
VERIFY(pci.get() == ptr);
VERIFY(pcv.get() == nullptr);
auto pi = const_pointer_cast<int>(std::move(pci));
VERIFY(pi.use_count() == 1);
VERIFY(pci.use_count() == 0);
VERIFY(pi.get() == ptr);
VERIFY(pci.get() == nullptr);
#if __cpp_rtti
MyP* pptr = new MyP;
shared_ptr<MyP> pp(pptr);
auto pdp = dynamic_pointer_cast<MyDP>(std::move(pp));
VERIFY(pdp.use_count() == 0);
VERIFY(pp.use_count() == 1);
VERIFY(pdp.get() == nullptr);
VERIFY(pp.get() == pptr);
pptr = new MyDP;
pp.reset(pptr);
pdp = dynamic_pointer_cast<MyDP>(std::move(pp));
VERIFY(pdp.use_count() == 1);
VERIFY(pp.use_count() == 0);
VERIFY(pdp.get() == pptr);
VERIFY(pp.get() == nullptr);
ptr = new int(2);
pi.reset(ptr);
auto pl = reinterpret_pointer_cast<long>(std::move(pi));
VERIFY(pl.use_count() == 1);
VERIFY(pi.use_count() == 0);
VERIFY(reinterpret_cast<int*>(pl.get()) == ptr);
VERIFY(pi.get() == nullptr);
#endif
}
int main()
{
test01();
test02();
}
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