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// 1999-07-01 bkoz
// Copyright (C) 1999-2021 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/>.
// 21.3.7.9 inserters and extractors
// NB: This file is predicated on sstreams, istreams, and ostreams
// working, not to mention other major details like char_traits, and
// all of the string class.
#include <string>
#include <sstream>
#include <testsuite_hooks.h>
// testing basic_stringbuf::xsputn via stress testing with large strings
// based on a bug report libstdc++ 9
void test04(std::size_t size)
{
std::wstring str(size, L's');
std::size_t expected_size = 2 * (size + 1);
std::wostringstream oss(str);
// sanity checks
VERIFY( str.size() == size );
VERIFY( oss.good() );
// stress test
oss << str << std::endl;
if (!oss.good())
VERIFY( false );
oss << str << std::endl;
if (!oss.good())
VERIFY( false );
VERIFY( str.size() == size );
VERIFY( oss.good() );
std::wstring str_tmp = oss.str();
VERIFY( str_tmp.size() == expected_size );
}
int main()
{
test04(1); // expected_size == 4
test04(1000); // expected_size == 2002
test04(10000); // expected_size == 20002
return 0;
}
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