3 // Copyright (C) 1999, 2001, 2003, 2009 Free Software Foundation, Inc.
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)
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.
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/>.
21 // 27.6.1.1.2 class basic_istream::sentry
25 #include <testsuite_hooks.h>
29 bool test __attribute__((unused)) = true;
30 const char* lit01 = "stereolab on the bolsinga tip";
31 const std::string str01(lit01);
33 std::stringbuf strbuf01;
34 std::stringbuf strbuf02(str01);
35 std::istream istr01(&strbuf01);
36 std::istream istr02(&strbuf02);
39 std::istream::sentry sentry01(istr01);
40 VERIFY( bool(sentry01) == false );
42 std::istream::sentry sentry02(istr01, true);
43 VERIFY( bool(sentry02) == false );
46 std::istream::sentry sentry03(istr02);
47 VERIFY( bool(sentry03) == true );
49 std::istream::sentry sentry04(istr02, true);
50 VERIFY( bool(sentry04) == true );