1 // Copyright (C) 2004, 2009 Free Software Foundation
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)
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.
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/>.
18 // 27.6.1.3 unformatted input functions
19 // @require@ %-*.tst %-*.txt
20 // @diff@ %-*.tst %-*.txt
25 #include <testsuite_hooks.h>
27 // istream& ignore(streamsize n)
32 bool test __attribute__((unused)) = true;
34 const char filename[] ="istream_unformatted-1.txt";
35 ios_base::iostate state1, state2;
38 ifstrm.open(filename);
40 state1 = ifstrm.rdstate();
41 VERIFY( state1 == ios_base::goodbit );
42 VERIFY( ifstrm.peek() == L'1' );
43 state2 = ifstrm.rdstate();
44 VERIFY( state1 == state2 );
46 state1 = ifstrm.rdstate();
48 VERIFY( ifstrm.gcount() == 1 );
49 state2 = ifstrm.rdstate();
50 VERIFY( state1 == state2 );
51 VERIFY( ifstrm.peek() == L'2' );
53 state1 = ifstrm.rdstate();
55 VERIFY( ifstrm.gcount() == 10 );
56 state2 = ifstrm.rdstate();
57 VERIFY( state1 == state2 );
58 VERIFY( ifstrm.peek() == L'1' );
60 state1 = ifstrm.rdstate();
62 VERIFY( ifstrm.gcount() == 100 );
63 state2 = ifstrm.rdstate();
64 VERIFY( state1 == state2 );
65 VERIFY( ifstrm.peek() == L'2' );
67 state1 = ifstrm.rdstate();
69 VERIFY( ifstrm.gcount() == 1000 );
70 state2 = ifstrm.rdstate();
71 VERIFY( state1 == state2 );
72 VERIFY( ifstrm.peek() == L'1' );
74 state1 = ifstrm.rdstate();
76 VERIFY( ifstrm.gcount() == 10000 );
77 state2 = ifstrm.rdstate();
78 VERIFY( state1 == state2 );
79 VERIFY( ifstrm.peek() == L'2' );
81 state1 = ifstrm.rdstate();
82 ifstrm.ignore(numeric_limits<streamsize>::max());
83 VERIFY( ifstrm.gcount() == 5389 );
84 state2 = ifstrm.rdstate();
85 VERIFY( state1 != state2 );
86 VERIFY( state2 == ios_base::eofbit );