1// Copyright (C) 2000, 2001, 2003 Free Software Foundation, Inc.
2//
3// This file is part of the GNU ISO C++ Library.  This library is free
4// software; you can redistribute it and/or modify it under the
5// terms of the GNU General Public License as published by the
6// Free Software Foundation; either version 2, or (at your option)
7// any later version.
8
9// This library is distributed in the hope that it will be useful,
10// but WITHOUT ANY WARRANTY; without even the implied warranty of
11// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
12// GNU General Public License for more details.
13
14// You should have received a copy of the GNU General Public License along
15// with this library; see the file COPYING.  If not, write to the Free
16// Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
17// USA.
18
19// 27.8.1.10 ofstream member functions
20// @require@ %-*.tst
21// @diff@ %-*.tst %-*.txt
22
23#include <ostream>
24#include <fstream>
25#include <testsuite_hooks.h>
26
27const char name_01[] = "ofstream_members-1.tst";
28
29void
30redirect_buffer(std::ios& stream, std::streambuf* new_buf)
31{ stream.rdbuf(new_buf); }
32
33std::streambuf*
34active_buffer(std::ios& stream)
35{ return stream.rdbuf(); }
36
37// libstdc++/2832
38void test03()
39{
40  bool test __attribute__((unused)) = true;
41  const char* strlit01 = "fuck war";
42  const std::string str00;
43  const std::string str01(strlit01);
44  std::string str02;
45  std::filebuf fbuf;
46  std::streambuf* pbasebuf0 = &fbuf;
47
48  std::ofstream sstrm1;
49  // derived rdbuf() always returns original streambuf, even though
50  // it's no longer associated with the stream.
51  std::filebuf* const buf1 = sstrm1.rdbuf();
52  // base rdbuf() returns the currently associated streambuf
53  std::streambuf* pbasebuf1 = active_buffer(sstrm1);
54  redirect_buffer(sstrm1, &fbuf);
55  std::filebuf* const buf2 = sstrm1.rdbuf();
56  std::streambuf* pbasebuf2 = active_buffer(sstrm1);
57  VERIFY( buf1 == buf2 );
58  VERIFY( pbasebuf1 != pbasebuf2 );
59  VERIFY( pbasebuf2 == pbasebuf0 );
60
61  // How confusing and non-intuitive is this?
62  // These semantics are a joke, a serious defect, and incredibly lame.
63}
64
65int main()
66{
67  test03();
68  return 0;
69}
70
71
72
73