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// 2003-06-02 Paolo Carlini <pcarlini@unitus.it>
// Copyright (C) 2003-2024 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>
const char name_01[] = "filebuf_virtuals-1.txt"; // file with data in it
// libstdc++/9761
void test01()
{
using namespace std;
filebuf fbuf;
filebuf::int_type r1, r2;
fbuf.open(name_01, ios_base::in);
fbuf.sbumpc();
fbuf.sbumpc();
r1 = fbuf.sputbackc('a');
r2 = fbuf.sputbackc('b');
fbuf.close();
VERIFY( r1 != filebuf::traits_type::eof() );
VERIFY( r2 == filebuf::traits_type::eof() );
}
int main()
{
test01();
return 0;
}
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