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a5544970 | 1 | // Copyright (C) 2004-2019 Free Software Foundation, Inc. |
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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 | |
748086b7 | 6 | // Free Software Foundation; either version 3, or (at your option) |
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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 | |
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15 | // with this library; see the file COPYING3. If not see |
16 | // <http://www.gnu.org/licenses/>. | |
17 | ||
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18 | |
19 | #include <sstream> | |
20 | #include <testsuite_performance.h> | |
21 | ||
22 | // libstdc++/16401 ostringstream in gcc 3.4.x very slow for big data | |
23 | void test01() | |
24 | { | |
25 | using namespace std; | |
26 | using namespace __gnu_test; | |
27 | ||
28 | time_counter time; | |
29 | resource_counter resource; | |
30 | ||
31 | for(unsigned n = 10000; n <= 10000000; n *= 10) | |
32 | { | |
33 | ostringstream oss; | |
34 | oss << "size = " << n; | |
35 | ||
36 | ostringstream str; | |
37 | start_counters(time, resource); | |
38 | for(unsigned i = 0; i < n; ++i) | |
39 | str << 'a'; | |
40 | stop_counters(time, resource); | |
41 | ||
42 | report_performance(__FILE__, oss.str(), time, resource); | |
43 | clear_counters(time, resource); | |
44 | } | |
45 | } | |
46 | ||
47 | int main() | |
48 | { | |
49 | test01(); | |
50 | return 0; | |
51 | } |