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1 | // 2004-11-29 Paolo Carlini <pcarlini@suse.de> |
2 | ||
748086b7 | 3 | // Copyright (C) 2004, 2009 Free Software Foundation |
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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 | // 21.3.3 string capacity | |
21 | ||
22 | #include <string> | |
23 | #include <testsuite_hooks.h> | |
24 | ||
25 | // libstdc++/18654 | |
26 | void test01() | |
27 | { | |
28 | using namespace std; | |
29 | bool test __attribute__((unused)) = true; | |
30 | ||
31 | typedef wstring::size_type size_type; | |
32 | ||
33 | // Our current implementation provides exact shrink-to-size | |
34 | // and shrink-to-fit (in the future, maybe this will change | |
35 | // for short strings). | |
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36 | const size_type minsize = 2 << 0; |
37 | const size_type maxsize = 2 << 20; | |
38 | for (size_type i = minsize; i <= maxsize; i *= 2) | |
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39 | { |
40 | wstring str(i, L'x'); | |
41 | str.reserve(3 * i); | |
42 | ||
43 | str.reserve(2 * i); | |
44 | VERIFY( str.capacity() == 2 * i ); | |
45 | ||
46 | str.reserve(); | |
47 | VERIFY( str.capacity() == i ); | |
48 | } | |
49 | } | |
50 | ||
51 | int main() | |
52 | { | |
53 | test01(); | |
54 | return 0; | |
55 | } |