1// 2003-06-02 Paolo Carlini <pcarlini@unitus.it>
2
3// Copyright (C) 2003, 2009 Free Software Foundation, Inc.
4//
5// This file is part of the GNU ISO C++ Library.  This library is free
6// software; you can redistribute it and/or modify it under the
7// terms of the GNU General Public License as published by the
8// Free Software Foundation; either version 3, or (at your option)
9// any later version.
10
11// This library is distributed in the hope that it will be useful,
12// but WITHOUT ANY WARRANTY; without even the implied warranty of
13// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
14// GNU General Public License for more details.
15
16// You should have received a copy of the GNU General Public License along
17// with this library; see the file COPYING3.  If not see
18// <http://www.gnu.org/licenses/>.
19
20// 27.8.1.4 Overridden virtual functions
21
22// { dg-require-fileio "" }
23
24#include <fstream>
25#include <testsuite_hooks.h>
26
27const char name_01[] = "filebuf_virtuals-1.txt"; // file with data in it
28
29// libstdc++/9761
30void test01()
31{
32  using namespace std;
33  bool test __attribute__((unused)) = true;
34
35  filebuf fbuf;
36  filebuf::int_type r1, r2;
37
38  fbuf.open(name_01, ios_base::in);
39
40  fbuf.sbumpc();
41  fbuf.sbumpc();
42
43  r1 = fbuf.sputbackc('a');
44  r2 = fbuf.sputbackc('b');
45
46  fbuf.close();
47
48  VERIFY( r1 != filebuf::traits_type::eof() );
49  VERIFY( r2 == filebuf::traits_type::eof() );
50}
51
52int main()
53{
54  test01();
55  return 0;
56}
57