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// Copyright (C) 2014-2015 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-options "-std=gnu++11" }
// { dg-require-fileio "" }
// 27.9.1.8 Assign and swap [ifstream.assign]
#include <fstream>
#include <sstream>
#include <testsuite_hooks.h>
void
read(std::istream& in, std::ostream& out)
{
std::string s;
for (int i=0; i < 10; ++i)
{
getline(in, s);
out << s << '\n';
}
}
void
test01()
{
std::string const name = "thirty_years_among_the_dead_preproc.txt";
std::ostringstream ss0;
{
std::ifstream f0(name);
read(f0, ss0);
}
{
std::ifstream f0(name);
std::ifstream f1;
f1 = std::move(f0);
VERIFY( !f0.is_open() );
VERIFY( f1.is_open() );
std::ostringstream ss1;
read(f1, ss1);
VERIFY( ss0.str() == ss1.str() );
}
{
std::ifstream f0(name);
std::ifstream f1;
f1.swap(f0);
VERIFY( !f0.is_open() );
VERIFY( f1.is_open() );
std::ostringstream ss1;
read(f1, ss1);
VERIFY( ss0.str() == ss1.str() );
}
}
void
test02()
{
#ifdef _GLIBCXX_USE_WCHAR_T
std::wifstream f, f2;
f2 = std::move(f);
f2.swap(f);
swap(f2, f);
#endif
}
int
main()
{
test01();
test02();
}
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