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1 | // 1999-07-01 bkoz |
2 | ||
99dee823 | 3 | // Copyright (C) 1999-2021 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 | |
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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 | ||
26 | #include <string> | |
27 | #include <sstream> | |
28 | #include <testsuite_hooks.h> | |
29 | ||
30 | // testing basic_stringbuf::xsputn via stress testing with large strings | |
31 | // based on a bug report libstdc++ 9 | |
11f10e6b | 32 | void test04(std::size_t size) |
61f1ed59 | 33 | { |
61f1ed59 | 34 | std::string str(size, 's'); |
11f10e6b | 35 | std::size_t expected_size = 2 * (size + 1); |
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36 | std::ostringstream oss(str); |
37 | ||
38 | // sanity checks | |
39 | VERIFY( str.size() == size ); | |
40 | VERIFY( oss.good() ); | |
41 | ||
42 | // stress test | |
43 | oss << str << std::endl; | |
44 | if (!oss.good()) | |
118c8424 | 45 | VERIFY( false ); |
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46 | |
47 | oss << str << std::endl; | |
48 | if (!oss.good()) | |
118c8424 | 49 | VERIFY( false ); |
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50 | |
51 | VERIFY( str.size() == size ); | |
52 | VERIFY( oss.good() ); | |
53 | std::string str_tmp = oss.str(); | |
54 | VERIFY( str_tmp.size() == expected_size ); | |
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55 | } |
56 | ||
57 | int main() | |
58 | { | |
59 | test04(1); // expected_size == 4 | |
60 | test04(1000); // expected_size == 2002 | |
61 | test04(10000); // expected_size == 20002 | |
62 | return 0; | |
63 | } |