1 // Copyright (C) 2003 Free Software Foundation, Inc.
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)
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.
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
16 // Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
19 // As a special exception, you may use this file as part of a free software
20 // library without restriction. Specifically, if other files instantiate
21 // templates or use macros or inline functions from this file, or you compile
22 // this file and link it with other files to produce an executable, this
23 // file does not by itself cause the resulting executable to be covered by
24 // the GNU General Public License. This exception does not however
25 // invalidate any other reasons why the executable file might be covered by
26 // the GNU General Public License.
29 #include <testsuite_performance.h>
31 // based on libstdc++/5730, use --fast-math
35 using namespace __gnu_test;
38 resource_counter resource;
39 const int iterations = 2000;
41 typedef complex<double> complex_type;
44 for (int i = 0; i < 2048; ++i)
47 start_counters(time, resource);
48 for (int i = 0; i < iterations; ++i)
51 for (int j = 0; j < 2048; ++j)
55 *p *= complex_type(cos(t), sin(t));
59 stop_counters(time, resource);
60 report_performance(__FILE__, "norm", time, resource);
61 clear_counters(time, resource);
63 start_counters(time, resource);
64 for (int i = 0; i < iterations; ++i)
67 for (int j = 0; j < 2048; ++j)
69 // Shouldn't be slower than the above.
72 double u2 = ur * ur + ui * ui;
74 *p *= complex_type(cos(t), sin(t));
78 stop_counters(time, resource);
79 report_performance(__FILE__, "", time, resource);