1// 2004-02-14  Petur Runolfsson  <peturr02@ru.is>
2
3// Copyright (C) 2004, 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#include <fstream>
23#include <locale>
24
25class Cvt : public std::codecvt<wchar_t, char, std::mbstate_t>
26{
27protected:
28  virtual std::codecvt_base::result
29  do_out(std::mbstate_t&, const wchar_t* from, const wchar_t*,
30	 const wchar_t*& from_next, char* to, char*,
31	 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  wfilebuf fb;
49  fb.pubimbue(locale(locale::classic(), new Cvt));
50  fb.open("tmp_13858_wchar_t", ios_base::out);
51
52  try
53    {
54      fb.sputc(L'a');
55      fb.sputc(L'b');
56      fb.pubimbue(locale::classic());
57      fb.sputc(L'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