00001 // Copyright (C) 2007, 2008, 2009 EPITA Research and Development 00002 // Laboratory (LRDE) 00003 // 00004 // This file is part of Olena. 00005 // 00006 // Olena is free software: you can redistribute it and/or modify it under 00007 // the terms of the GNU General Public License as published by the Free 00008 // Software Foundation, version 2 of the License. 00009 // 00010 // Olena is distributed in the hope that it will be useful, 00011 // but WITHOUT ANY WARRANTY; without even the implied warranty of 00012 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 00013 // General Public License for more details. 00014 // 00015 // You should have received a copy of the GNU General Public License 00016 // along with Olena. If not, see <http://www.gnu.org/licenses/>. 00017 // 00018 // As a special exception, you may use this file as part of a free 00019 // software project without restriction. Specifically, if other files 00020 // instantiate templates or use macros or inline functions from this 00021 // file, or you compile this file and link it with other files to produce 00022 // an executable, this file does not by itself cause the resulting 00023 // executable to be covered by the GNU General Public License. This 00024 // exception does not however invalidate any other reasons why the 00025 // executable file might be covered by the GNU General Public License. 00026 00030 00031 class timer 00032 { 00033 public: 00034 void start() 00035 { 00036 start_ = clock(); 00037 } 00038 00039 void stop() 00040 { 00041 end_ = clock(); 00042 len = float(end_ - start_) / CLOCKS_PER_SEC; 00043 } 00044 00045 float lenght() 00046 { 00047 return float(clock() - start_) / CLOCKS_PER_SEC; 00048 } 00049 00050 private: 00051 clock_t start_; 00052 clock_t end_; 00053 float len; 00054 }; 00055 00056 00057 std::ostream& operator<<(std::ostream& ostr, timer t) 00058 { 00059 return ostr << t.lenght() << "s"; 00060 }