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1 | // Copyright (C) 2004 Free Software Foundation |
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 | |
83f51799 | 16 | // Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, |
f8e7ffa6 PC |
17 | // USA. |
18 | ||
19 | // 27.6.1.3 unformatted input functions | |
20 | ||
21 | #include <istream> | |
22 | #include <string> | |
23 | #include <fstream> | |
24 | #include <limits> | |
25 | #include <testsuite_hooks.h> | |
26 | ||
27 | using namespace std; | |
28 | ||
29 | wstring | |
30 | prepare(wstring::size_type len, unsigned nchunks, wchar_t delim) | |
31 | { | |
32 | wstring ret; | |
33 | for (unsigned i = 0; i < nchunks; ++i) | |
34 | { | |
35 | for (wstring::size_type j = 0; j < len; ++j) | |
36 | ret.push_back(L'a' + rand() % 26); | |
37 | len *= 2; | |
38 | ret.push_back(delim); | |
39 | } | |
40 | return ret; | |
41 | } | |
42 | ||
43 | void | |
44 | check(wistream& stream, const wstring& str, unsigned nchunks, wchar_t delim) | |
45 | { | |
46 | bool test __attribute__((unused)) = true; | |
47 | ||
48 | wstring::size_type index = 0, index_new = 0; | |
49 | unsigned n = 0; | |
50 | ||
51 | while (stream.ignore(numeric_limits<streamsize>::max(), delim).good()) | |
52 | { | |
53 | index_new = str.find(delim, index); | |
54 | VERIFY( stream.gcount() == index_new - index + 1 ); | |
55 | index = index_new + 1; | |
56 | ++n; | |
57 | } | |
58 | VERIFY( stream.gcount() == 0 ); | |
59 | VERIFY( !stream.fail() ); | |
60 | VERIFY( n == nchunks ); | |
61 | } | |
62 | ||
63 | void test01() | |
64 | { | |
65 | const char filename[] = "wistream_ignore.txt"; | |
66 | ||
67 | const wchar_t delim = L'|'; | |
68 | const unsigned nchunks = 10; | |
69 | const wstring data = prepare(555, nchunks, delim); | |
70 | ||
71 | wofstream ofstrm; | |
72 | ofstrm.open(filename); | |
73 | ofstrm.write(data.data(), data.size()); | |
74 | ofstrm.close(); | |
75 | ||
76 | wifstream ifstrm; | |
77 | ifstrm.open(filename); | |
78 | check(ifstrm, data, nchunks, delim); | |
79 | ifstrm.close(); | |
80 | } | |
81 | ||
82 | int main() | |
83 | { | |
84 | test01(); | |
85 | return 0; | |
86 | } |