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#include <streambuf>
23#include <locale>
24#include <cstring>
25#include <testsuite_hooks.h>
26
27class MyTraits : public std::char_traits<char>
28{
29public:
30  static bool eq(char c1, char c2)
31  {
32    bool test __attribute__((unused)) = true;
33    VERIFY( c1 != 'X' );
34    VERIFY( c2 != 'X' );
35    return std::char_traits<char>::eq(c1, c2);
36  }
37};
38
39class MyBuf : public std::basic_streambuf<char, MyTraits>
40{
41  char buffer[8];
42
43public:
44  MyBuf()
45  {
46    std::memset(buffer, 'X', sizeof(buffer));
47    std::memset(buffer + 2, 'f', 4);
48    setg(buffer + 2, buffer + 2, buffer + 6);
49  }
50};
51
52// libstdc++/9538
53void test08()
54{
55  bool test __attribute__((unused)) = true;
56
57  MyBuf mb;
58  mb.sputbackc('a');
59}
60
61int main()
62{
63  test08();
64  return 0;
65}
66