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// { dg-require-fileio "" }
23
24#include <fstream>
25#include <locale>
26#include <testsuite_hooks.h>
27
28const char name_07[] = "filebuf_virtuals-7.txt"; // empty file, need to create
29
30class errorcvt : public std::codecvt<char, char, mbstate_t>
31{
32protected:
33  std::codecvt_base::result
34  do_out(mbstate_t&, const char* from, const char*,
35	 const char*& from_next, char* to, char*,
36	 char*& to_next) const
37  {
38    from_next = from;
39    to_next = to;
40    return std::codecvt<char, char, mbstate_t>::error;
41  }
42
43  virtual bool do_always_noconv() const throw()
44  {
45    return false;
46  }
47};
48
49// libstdc++/9182
50// basic_filebuf<>::sync and overflow do not write out any characters
51// if codecvt<>::out returns error
52void test14()
53{
54  using namespace std;
55  bool test __attribute__((unused)) = true;
56
57  locale loc =  locale::classic();
58  loc = locale(loc, new errorcvt);
59
60  filebuf fbuf1;
61  fbuf1.pubimbue(loc);
62  fbuf1.pubsetbuf(0, 0);
63  fbuf1.open(name_07, ios_base::out | ios_base::trunc);
64
65  try
66    {
67      fbuf1.sputn("onne", 4);
68      fbuf1.close();
69      VERIFY( false );
70    }
71  catch (std::exception&)
72    {
73    }
74}
75
76int main()
77{
78  test14();
79  return 0;
80}
81