1// 1999-10-14 bkoz
2
3// Copyright (C) 1999, 2001, 2003 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 2, 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 COPYING.  If not, write to the Free
18// Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
19// USA.
20
21// As a special exception, you may use this file as part of a free software
22// library without restriction.  Specifically, if other files instantiate
23// templates or use macros or inline functions from this file, or you compile
24// this file and link it with other files to produce an executable, this
25// file does not by itself cause the resulting executable to be covered by
26// the GNU General Public License.  This exception does not however
27// invalidate any other reasons why the executable file might be covered by
28// the GNU General Public License.
29
30// 27.6.1.1.2 class basic_istream::sentry
31
32#include <istream>
33#include <sstream>
34#include <testsuite_hooks.h>
35
36void test01()
37{
38  bool test __attribute__((unused)) = true;
39  const char* lit01 = "stereolab on the bolsinga tip";
40  const std::string str01(lit01);
41
42  std::stringbuf strbuf01;
43  std::stringbuf strbuf02(str01);
44  std::istream istr01(&strbuf01);
45  std::istream istr02(&strbuf02);
46
47  // test negatives
48  std::istream::sentry sentry01(istr01);
49  VERIFY( bool(sentry01) == false );
50
51  std::istream::sentry sentry02(istr01, true);
52  VERIFY( bool(sentry02) == false );
53
54  // positive tests
55  std::istream::sentry sentry03(istr02);
56  VERIFY( bool(sentry03) == true );
57
58  std::istream::sentry sentry04(istr02, true);
59  VERIFY( bool(sentry04) == true );
60}
61
62int main()
63{
64  test01();
65  return 0;
66}
67