1// Copyright (C) 2005, 2009 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 3, 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 COPYING3.  If not see
16// <http://www.gnu.org/licenses/>.
17
18// 27.6.2.6 Unformatted output functions
19//
20// _GLIBCXX_RESOLVE_LIB_DEFECTS
21// DR 60. What is a formatted input function?
22// basic_ostream::flush() does not behave as an unformatted output function.
23
24#include <ostream>
25#include <testsuite_hooks.h>
26#include <testsuite_io.h>
27
28void test02()
29{
30  bool test __attribute__((unused)) = true;
31
32  __gnu_test::sync_wstreambuf buf;
33  std::wostream os(&buf);
34
35  __gnu_test::sync_wstreambuf buf_tie;
36  std::wostream os_tie(&buf_tie);
37
38  // No sentry should be constructed so os.tie()->flush() should not be
39  // called.
40  os.tie(&os_tie);
41
42  os.flush();
43
44  VERIFY( os.good() );
45  VERIFY( buf.sync_called() );
46  VERIFY( !buf_tie.sync_called() );
47
48  // os.rdbuf()->pubsync() should be called even if !os.good().
49  os.setstate(std::ios_base::eofbit);
50
51  os.flush();
52
53  VERIFY( os.rdstate() == std::ios_base::eofbit );
54  VERIFY( buf.sync_called() );
55  VERIFY( !buf_tie.sync_called() );
56}
57
58int main()
59{
60  test02();
61  return 0;
62}
63
64