1// { dg-require-namedlocale "" }
2
3// Copyright (C) 2003, 2005 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#include <testsuite_hooks.h>
26
27class Cvt : public std::codecvt<char, char, std::mbstate_t>
28{
29protected:
30  int do_encoding() const throw()
31  { return -1; }
32
33  bool do_always_noconv() const throw()
34  { return false; }
35};
36
37// libstdc++/13171
38void test01()
39{
40  bool test __attribute__((unused)) = true;
41  using namespace std;
42
43  filebuf fb;
44  fb.pubimbue(locale(locale("en_US"), new Cvt));
45  fb.open("tmp_13171-4", ios_base::out);
46  fb.pubimbue(locale("fr_FR"));
47  fb.sputc('N');
48  fb.pubsync();
49  fb.close();
50}
51
52int main()
53{
54  test01();
55  return 0;
56}
57