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// Copyright (C) 2008-2018 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/>.
// { dg-do run { target c++11 } }
#include <sstream>
#include <string>
#include <testsuite_hooks.h>
void
test01()
{
int i = 1742;
// This usage isn't supported by the current draft.
// std::string result = (std::ostringstream() << i).str();
std::ostringstream() << i;
std::string result ("1742");
int i2;
std::istringstream(result) >> i2;
VERIFY (i == i2);
}
struct X { bool as_rvalue; };
void operator>>(std::istream&, X& x) { x.as_rvalue = false; }
void operator>>(std::istream&, X&& x) { x.as_rvalue = true; }
// LWG 2328 Rvalue stream extraction should use perfect forwarding
void
test02()
{
X x;
std::istringstream is;
auto& ref1 = (std::move(is) >> x);
VERIFY( &ref1 == &is );
VERIFY( x.as_rvalue == false );
auto& ref2 = (std::move(is) >> std::move(x));
VERIFY( &ref2 == &is );
VERIFY( x.as_rvalue == true );
char arr[2];
std::istringstream("x") >> &arr[0];
std::istringstream("x") >> arr;
}
int
main()
{
test01();
test02();
return 0;
}
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