1// 2001-05-21 Benjamin Kosnik  <bkoz@redhat.com>
2
3// Copyright (C) 2001-2015 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_06[] = "filebuf_virtuals-6.txt"; // empty file, need to create
28
29// libstdc++/9825
30// filebuf::sputbackc breaks sbumpc
31void test12()
32{
33  using namespace std;
34  bool test __attribute__((unused)) = true;
35
36  filebuf fbuf;
37
38  fbuf.open(name_06, ios_base::in|ios_base::out|ios_base::trunc);
39  fbuf.sputn("crazy bees!", 11);
40  fbuf.pubseekoff(0, ios_base::beg);
41  fbuf.sbumpc();
42  fbuf.sputbackc('x');
43  filebuf::int_type c = fbuf.sbumpc();
44  VERIFY( c == 'x' );
45  c = fbuf.sbumpc();
46  VERIFY( c == 'r' );
47  c = fbuf.sbumpc();
48  VERIFY( c == 'a' );
49  fbuf.close();
50}
51
52int main()
53{
54  test12();
55  return 0;
56}
57