1 // Copyright (C) 2006 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.
31 #include <testsuite_performance.h>
37 using namespace __gnu_test;
39 typedef istreambuf_iterator<char> in_iterator_type;
40 typedef ostreambuf_iterator<char> out_iterator_type;
43 resource_counter resource;
45 const char data[] = "Contrappunto dialettico alla mente";
47 // istreambuf iterators -> ostreambuf iterator
49 istringstream iss(data);
50 in_iterator_type beg(iss);
54 out_iterator_type out(oss);
56 start_counters(time, resource);
57 for (unsigned i = 0; i < 10000000; ++i)
63 stop_counters(time, resource);
64 report_performance(__FILE__, "isb iters -> osb iter", time, resource);
65 clear_counters(time, resource);
68 // char array -> ostreambuf iterator
70 const char* beg = data;
71 const char* end = data + sizeof(data) - 1;
74 out_iterator_type out(oss);
76 start_counters(time, resource);
77 for (unsigned i = 0; i < 10000000; ++i)
82 stop_counters(time, resource);
83 report_performance(__FILE__, "pointers -> osb iter", time, resource);
84 clear_counters(time, resource);
87 // istreambuf iterators -> char array
89 istringstream iss(data);
90 in_iterator_type beg(iss);
93 char out[sizeof(data)];
95 start_counters(time, resource);
96 for (unsigned i = 0; i < 10000000; ++i)
101 stop_counters(time, resource);
102 report_performance(__FILE__, "isb iters -> pointer", time, resource);
103 clear_counters(time, resource);