1// { dg-require-namedlocale "" }
2
3// Copyright (C) 2003, 2005, 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#include <testsuite_hooks.h>
25
26class Cvt : public std::codecvt<char, char, std::mbstate_t>
27{
28protected:
29  int do_encoding() const throw()
30  { return -1; }
31
32  bool do_always_noconv() const throw()
33  { return false; }
34};
35
36// libstdc++/13171
37void test01()
38{
39  bool test __attribute__((unused)) = true;
40  using namespace std;
41
42  filebuf fb;
43  fb.pubimbue(locale(locale("en_US"), new Cvt));
44  fb.open("tmp_13171-4", ios_base::out);
45  fb.pubimbue(locale("fr_FR"));
46  fb.sputc('N');
47  fb.pubsync();
48  fb.close();
49}
50
51int main()
52{
53  test01();
54  return 0;
55}
56