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1 | // 1999-07-01 bkoz |
2 | ||
85ec4feb | 3 | // Copyright (C) 1999-2018 Free Software Foundation, Inc. |
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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 | |
748086b7 | 8 | // Free Software Foundation; either version 3, or (at your option) |
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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 | |
748086b7 JJ |
17 | // with this library; see the file COPYING3. If not see |
18 | // <http://www.gnu.org/licenses/>. | |
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19 | |
20 | // 21.3.7.9 inserters and extractors | |
21 | ||
22 | // NB: This file is predicated on sstreams, istreams, and ostreams | |
23 | // working, not to mention other major details like char_traits, and | |
24 | // all of the string class. | |
25 | ||
6cec3c81 SL |
26 | // { dg-require-fileio "" } |
27 | ||
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28 | #include <string> |
29 | #include <fstream> | |
30 | #include <iostream> | |
31 | #include <testsuite_hooks.h> | |
32 | ||
33 | // testing basic_filebuf::xsputn via stress testing with large strings | |
34 | // based on a bug report libstdc++ 9 | |
35 | // mode == out | |
11f10e6b | 36 | void test05(std::size_t size) |
61f1ed59 | 37 | { |
118c8424 | 38 | bool test = true; |
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39 | const char filename[] = "inserters_extractors-1.txt"; |
40 | const wchar_t fillc = L'f'; | |
41 | std::wofstream ofs(filename); | |
42 | std::wstring str(size, fillc); | |
43 | ||
44 | // sanity checks | |
45 | VERIFY( str.size() == size ); | |
46 | VERIFY( ofs.good() ); | |
47 | ||
48 | // stress test | |
49 | ofs << str << std::endl; | |
50 | if (!ofs.good()) | |
51 | test = false; | |
52 | ||
53 | ofs << str << std::endl; | |
54 | if (!ofs.good()) | |
55 | test = false; | |
56 | ||
57 | VERIFY( str.size() == size ); | |
58 | VERIFY( ofs.good() ); | |
59 | ||
60 | ofs.close(); | |
61 | ||
62 | // sanity check on the written file | |
63 | std::wifstream ifs(filename); | |
11f10e6b | 64 | std::size_t count = 0; |
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65 | wchar_t c; |
66 | while (count <= (2 * size) + 4) | |
67 | { | |
68 | ifs >> c; | |
69 | if (ifs.good() && c == fillc) | |
70 | { | |
71 | ++count; | |
72 | c = '0'; | |
73 | } | |
74 | else | |
75 | break; | |
76 | } | |
77 | ||
78 | VERIFY( count == 2 * size ); | |
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79 | } |
80 | ||
81 | int main() | |
82 | { | |
83 | test05(1); | |
84 | test05(1000); | |
85 | test05(10000); | |
86 | return 0; | |
87 | } |