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8d3eec31 | 1 | // 2004-06-20 Paolo Carlini <pcarlini@suse.de> |
2 | ||
f1717362 | 3 | // Copyright (C) 2004-2016 Free Software Foundation, Inc. |
8d3eec31 | 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 | |
6bc9506f | 8 | // Free Software Foundation; either version 3, or (at your option) |
8d3eec31 | 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 | |
6bc9506f | 17 | // with this library; see the file COPYING3. If not see |
18 | // <http://www.gnu.org/licenses/>. | |
8d3eec31 | 19 | |
20 | // 27.6.1.3 unformatted input functions | |
21 | // @require@ %-*.tst %-*.txt | |
22 | // @diff@ %-*.tst %-*.txt | |
23 | ||
b14642ed | 24 | // { dg-require-fileio "" } |
25 | ||
8d3eec31 | 26 | #include <istream> |
27 | #include <fstream> | |
28 | #include <limits> | |
29 | #include <testsuite_hooks.h> | |
30 | ||
31 | // istream& ignore(streamsize n) | |
32 | void | |
33 | test01() | |
34 | { | |
35 | using namespace std; | |
36 | bool test __attribute__((unused)) = true; | |
37 | ||
38 | const char filename[] ="istream_unformatted-1.txt"; | |
39 | ios_base::iostate state1, state2; | |
40 | ||
41 | ifstream ifstrm; | |
42 | ifstrm.open(filename); | |
43 | ||
44 | state1 = ifstrm.rdstate(); | |
45 | VERIFY( state1 == ios_base::goodbit ); | |
46 | VERIFY( ifstrm.peek() == '1' ); | |
47 | state2 = ifstrm.rdstate(); | |
48 | VERIFY( state1 == state2 ); | |
49 | ||
50 | state1 = ifstrm.rdstate(); | |
51 | ifstrm.ignore(1); | |
52 | VERIFY( ifstrm.gcount() == 1 ); | |
53 | state2 = ifstrm.rdstate(); | |
54 | VERIFY( state1 == state2 ); | |
55 | VERIFY( ifstrm.peek() == '2' ); | |
56 | ||
57 | state1 = ifstrm.rdstate(); | |
58 | ifstrm.ignore(10); | |
59 | VERIFY( ifstrm.gcount() == 10 ); | |
60 | state2 = ifstrm.rdstate(); | |
61 | VERIFY( state1 == state2 ); | |
62 | VERIFY( ifstrm.peek() == '1' ); | |
63 | ||
64 | state1 = ifstrm.rdstate(); | |
65 | ifstrm.ignore(100); | |
66 | VERIFY( ifstrm.gcount() == 100 ); | |
67 | state2 = ifstrm.rdstate(); | |
68 | VERIFY( state1 == state2 ); | |
69 | VERIFY( ifstrm.peek() == '2' ); | |
70 | ||
71 | state1 = ifstrm.rdstate(); | |
72 | ifstrm.ignore(1000); | |
73 | VERIFY( ifstrm.gcount() == 1000 ); | |
74 | state2 = ifstrm.rdstate(); | |
75 | VERIFY( state1 == state2 ); | |
76 | VERIFY( ifstrm.peek() == '1' ); | |
77 | ||
78 | state1 = ifstrm.rdstate(); | |
79 | ifstrm.ignore(10000); | |
80 | VERIFY( ifstrm.gcount() == 10000 ); | |
81 | state2 = ifstrm.rdstate(); | |
82 | VERIFY( state1 == state2 ); | |
83 | VERIFY( ifstrm.peek() == '2' ); | |
84 | ||
85 | state1 = ifstrm.rdstate(); | |
86 | ifstrm.ignore(numeric_limits<streamsize>::max()); | |
87 | VERIFY( ifstrm.gcount() == 5389 ); | |
88 | state2 = ifstrm.rdstate(); | |
89 | VERIFY( state1 != state2 ); | |
90 | VERIFY( state2 == ios_base::eofbit ); | |
91 | } | |
92 | ||
93 | int | |
94 | main() | |
95 | { | |
96 | test01(); | |
97 | return 0; | |
98 | } |