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// 2001-05-21 Benjamin Kosnik <bkoz@redhat.com>
// Copyright (C) 2001-2019 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/>.
// 27.8.1.4 Overridden virtual functions
#include <sstream>
#include <testsuite_hooks.h>
class OverBuf : public std::stringbuf
{
public:
int_type pub_overflow(int_type c = traits_type::eof())
{ return std::stringbuf::overflow(c); }
};
// libstdc++/9988
// filebuf::overflow writes EOF to file
void test15()
{
using namespace std;
OverBuf sb;
sb.sputc('a');
sb.pub_overflow('b');
sb.pub_overflow();
sb.sputc('c');
stringbuf sbin(sb.str(), ios_base::in);
stringbuf::int_type c;
c = sbin.sbumpc();
VERIFY( c == 'a' );
c = sbin.sbumpc();
VERIFY( c == 'b' );
c = sbin.sbumpc();
VERIFY( c == 'c' );
c = sbin.sbumpc();
VERIFY( c == stringbuf::traits_type::eof() );
}
int main()
{
test15();
return 0;
}
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