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// Copyright (C) 2013-2023 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/>.
// inserters
// NB: This file is predicated on sstreams, ostreams
// working, not to mention other major details like char_traits, and
// all of the string_view class.
// { dg-options "-std=gnu++17" }
// { dg-require-fileio "" }
namespace inserters_2 {
// testing basic_filebuf::xsputn via stress testing with large string_views
// based on a bug report libstdc++ 9
// mode == out
static void
test05 (std::size_t size)
{
bool test ATTRIBUTE_UNUSED = true;
const char filename[] = "inserters_extractors-2.txt";
const char fillc = 'f';
std::ofstream ofs(filename);
std::string str(size, fillc);
gdb::string_view strv{str};
// sanity checks
VERIFY( str.size() == size );
VERIFY( ofs.good() );
// stress test
ofs << str << std::endl;
if (!ofs.good())
test = false;
ofs << str << std::endl;
if (!ofs.good())
test = false;
VERIFY( str.size() == size );
VERIFY( ofs.good() );
ofs.close();
// sanity check on the written file
std::ifstream ifs(filename);
std::size_t count = 0;
char c;
while (count <= (2 * size) + 4)
{
ifs >> c;
if (ifs.good() && c == fillc)
{
++count;
c = '0';
}
else
break;
}
VERIFY( count == 2 * size );
}
static int
main ()
{
test05(1);
test05(1000);
test05(10000);
return 0;
}
} // namespace inserters_2
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