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// Copyright (C) 2014-2019 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 } }
// { dg-require-fileio "" }
// 27.9.1.12 Assign and swap [ostringstream.assign]
#include <fstream>
#include <string>
#include <testsuite_hooks.h>
using namespace std;
string const name = "ofstream-assign.txt";
void
test01()
{
string s1 = "Let the whole outside world";
string s2 = " consist of a long paper tape.";
ofstream f(name, ios::trunc);
VERIFY( f.is_open() );
f << s1;
{
ofstream f1;
f1 = std::move(f);
VERIFY( f1.is_open() );
VERIFY( !f.is_open() );
f1 << s2;
f1.swap(f);
VERIFY( !f1.is_open() );
VERIFY( f.is_open() );
f << s1;
swap(f1, f);
f1 << s2;
}
ifstream in(name);
string result;
getline(in, result);
VERIFY( result == (s1 + s2 + s1 + s2) );
}
void
test02()
{
#ifdef _GLIBCXX_USE_WCHAR_T
std::wofstream s0, s;
s = std::move(s0);
s.swap(s0);
swap(s, s0);
#endif
}
int
main()
{
test01();
test02();
}
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