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// { dg-options "-std=gnu++0x" }
// Copyright (C) 2011 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 <tuple>
#include <type_traits>
#include <memory>
#include <testsuite_hooks.h>
template<typename T>
typename std::decay<T>::type copy(T&& x)
{ return std::forward<T>(x); }
// libstdc++/48476
void test01()
{
bool test __attribute__((unused)) = true;
std::shared_ptr<int> p(new int()), q, r;
std::tuple<std::shared_ptr<int>&, int> t0(p, 23), t1(q, 0);
t1 = copy(t0); // shall be equivalent to
// q = p; std::get<1>(t1) = std::get<1>(t0);
VERIFY( q == p );
std::tuple<std::shared_ptr<int>&, char> t2(r, 0);
t2 = copy(t1); // shall be equivalent to
// r = q; std::get<1>(t2) = std::get<1>(t1);
VERIFY( r == q );
}
int main()
{
test01();
return 0;
}
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