1// 2004-10-01  Paolo Carlini  <pcarlini@suse.de>
2
3// Copyright (C) 2004-2015 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// 27.7.1.3  Overridden virtual functions  [lib.stringbuf.virtuals]
21
22#include <sstream>
23#include <testsuite_hooks.h>
24
25class my_stringbuf : public std::wstringbuf
26{
27public:
28  my_stringbuf(const std::wstring& str, std::ios_base::openmode mode)
29  : std::wstringbuf(str, mode) { }
30
31  int_type
32  pub_pbackfail(int_type __c)
33  { return this->pbackfail(__c); }
34};
35
36// We weren't enforcing 27.7.1.3/2, bullet 2: "... and if
37// mode & ios_base::out is nonzero, ..."
38void test01()
39{
40  bool test __attribute__((unused)) = true;
41  using namespace std;
42
43  typedef my_stringbuf::int_type    int_type;
44  typedef my_stringbuf::traits_type traits_type;
45
46  my_stringbuf sbuf(L"any", ios_base::in);
47
48  int_type c = sbuf.sbumpc();
49  VERIFY( c == L'a' );
50
51  c = sbuf.pub_pbackfail(L'x');
52  VERIFY( c == traits_type::eof() );
53  VERIFY( sbuf.str() == L"any" );
54  c = sbuf.sgetc();
55  VERIFY( c == L'n' );
56}
57
58
59int main()
60{
61  test01();
62  return 0;
63}
64