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// { dg-options "-std=gnu++11" }
// Copyright (C) 2013-2014 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/>.
#include <memory>
#include <ext/pointer.h>
#include <testsuite_hooks.h>
struct X : public std::enable_shared_from_this<X> { };
void test01()
{
std::unique_ptr<X> up(new X);
X* xp = up.get();
std::shared_ptr<X> sp(std::move(up));
VERIFY( xp->shared_from_this() != nullptr );
}
using __gnu_cxx::_Pointer_adapter;
using __gnu_cxx::_Std_pointer_impl;
struct Deleter
{
struct pointer : _Pointer_adapter<_Std_pointer_impl<X>>
{
using _Pointer_adapter::_Pointer_adapter;
operator X*() const noexcept { return this->get(); }
};
void operator()(pointer p) const noexcept { delete (X*)p; }
};
void test02()
{
std::unique_ptr<X, Deleter> up(new X);
Deleter::pointer xp = up.get();
// Creating shared_ptr from unique_ptr with custom pointer is an extension:
std::shared_ptr<X> sp(std::move(up));
// but enable_shared_from_this should still work:
VERIFY( xp->shared_from_this() != nullptr );
}
int main()
{
test01();
test02();
}
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