1// 2004-02-14  Petur Runolfsson  <peturr02@ru.is>
2
3// Copyright (C) 2004 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 2, 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 COPYING.  If not, write to the Free
18// Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
19// USA.
20
21// 27.8.1.4 Overridden virtual functions
22
23#include <fstream>
24#include <locale>
25
26class Cvt : public std::codecvt<char, char, std::mbstate_t>
27{
28protected:
29  virtual std::codecvt_base::result
30  do_out(std::mbstate_t&, const char* from, const char*,
31	 const char*& from_next, char* to, char*, char*& to_next) const
32  {
33    from_next = from;
34    to_next = to;
35    return std::codecvt_base::error;
36  }
37
38  virtual bool
39  do_always_noconv() const throw()
40  { return false; }
41};
42
43// libstdc++/13858
44void test01()
45{
46  using namespace std;
47
48  filebuf fb;
49  fb.pubimbue(locale(locale::classic(), new Cvt));
50  fb.open("tmp_13858_char", ios_base::out);
51
52  try
53    {
54      fb.sputc('a');
55      fb.sputc('b');
56      fb.pubimbue(locale::classic());
57      fb.sputc('c');
58      fb.pubsync();
59      fb.close();
60    }
61  catch (std::exception&)
62    {
63    }
64}
65
66int main()
67{
68  test01();
69  return 0;
70}
71