1// Copyright (C) 2005 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// 27.6.2.6 Unformatted output functions
20//
21// _GLIBCXX_RESOLVE_LIB_DEFECTS
22// DR 60. What is a formatted input function?
23// basic_ostream::flush() does not behave as an unformatted output function.
24
25#include <ostream>
26#include <testsuite_hooks.h>
27#include <testsuite_io.h>
28
29void test02()
30{
31  bool test __attribute__((unused)) = true;
32
33  __gnu_test::sync_wstreambuf buf;
34  std::wostream os(&buf);
35
36  __gnu_test::sync_wstreambuf buf_tie;
37  std::wostream os_tie(&buf_tie);
38
39  // No sentry should be constructed so os.tie()->flush() should not be
40  // called.
41  os.tie(&os_tie);
42
43  os.flush();
44
45  VERIFY( os.good() );
46  VERIFY( buf.sync_called() );
47  VERIFY( !buf_tie.sync_called() );
48
49  // os.rdbuf()->pubsync() should be called even if !os.good().
50  os.setstate(std::ios_base::eofbit);
51
52  os.flush();
53
54  VERIFY( os.rdstate() == std::ios_base::eofbit );
55  VERIFY( buf.sync_called() );
56  VERIFY( !buf_tie.sync_called() );
57}
58
59int main()
60{
61  test02();
62  return 0;
63}
64
65