// Copyright (C) 2004, 2009 Free Software Foundation, Inc. // // This file is part of the GNU ISO C++ Library. This library is free // software; you can redistribute it and/or modify it under the // terms of the GNU General Public License as published by the // Free Software Foundation; either version 3, or (at your option) // any later version. // This library is distributed in the hope that it will be useful, // but WITHOUT ANY WARRANTY; without even the implied warranty of // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the // GNU General Public License for more details. // You should have received a copy of the GNU General Public License along // with this library; see the file COPYING3. If not see // . #include #include // libstdc++/16401 ostringstream in gcc 3.4.x very slow for big data void test01() { using namespace std; using namespace __gnu_test; time_counter time; resource_counter resource; for(unsigned n = 10000; n <= 10000000; n *= 10) { ostringstream oss; oss << "size = " << n; ostringstream str; start_counters(time, resource); for(unsigned i = 0; i < n; ++i) str << 'a'; stop_counters(time, resource); report_performance(__FILE__, oss.str(), time, resource); clear_counters(time, resource); } } int main() { test01(); return 0; }