// Copyright (C) 2006, 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 typedef std::tr1::unordered_map map_type; typedef std::tr1::unordered_map matrix_type; int main() { using namespace __gnu_test; time_counter time; resource_counter resource; const int sz = 1000; matrix_type matrix; start_counters(time, resource); for (int iter = 0; iter < 50; ++iter) { for (int i = 0; i < sz; ++i) { for (int j = 0; j < sz; ++j) { map_type& row = matrix[i / 4]; ++row[j / 4]; } } } stop_counters(time, resource); report_performance(__FILE__, "", time, resource); return 0; }