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// 2003-06-25 Paolo Carlini <pcarlini@unitus.it>
// Copyright (C) 2003-2015 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/>.
// 27.8.1.4 Overridden virtual functions
// { dg-require-fileio "" }
#include <fstream>
#include <testsuite_hooks.h>
void test01()
{
bool test __attribute__((unused)) = true;
using namespace std;
filebuf fb_out, fb_in_out;
fb_out.open("tmp_underflow.tst", ios::out);
fb_out.sputc('S');
fb_out.sputc('T');
fb_out.close();
fb_in_out.open("tmp_underflow.tst", ios::in | ios::out);
while (fb_in_out.sbumpc() != filebuf::traits_type::eof());
VERIFY( fb_in_out.sputc('x') == 'x' );
fb_in_out.close();
}
int main()
{
test01();
}
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