utilities/include/randomgenerator.h
00001 /******************************************************************************** 00002 * FARSA Genetic Algorithm Library * 00003 * Copyright (C) 2007-2008 Gianluca Massera <emmegian@yahoo.it> * 00004 * * 00005 * This program is free software; you can redistribute it and/or modify * 00006 * it under the terms of the GNU General Public License as published by * 00007 * the Free Software Foundation; either version 2 of the License, or * 00008 * (at your option) any later version. * 00009 * * 00010 * This program 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 * 00013 * GNU General Public License for more details. * 00014 * * 00015 * You should have received a copy of the GNU General Public License * 00016 * along with this program; if not, write to the Free Software * 00017 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA * 00018 ********************************************************************************/ 00019 00020 #ifndef RANDOMGENERATOR_H 00021 #define RANDOMGENERATOR_H 00022 00023 #include "utilitiesconfig.h" 00024 00025 namespace farsa { 00026 00027 class RandomGenerator; 00028 class RandomGeneratorPrivate; 00029 00034 extern FARSA_UTIL_API RandomGenerator* globalRNG; 00035 00044 class FARSA_UTIL_API RandomGenerator { 00045 public: 00047 RandomGenerator( int seed = 0 ); 00049 ~RandomGenerator(); 00051 void setSeed( int seed ); 00053 int seed(); 00055 bool getBool( double trueProbability ); 00057 int getInt( int min, int max ); 00059 double getDouble( double min, double max ); 00064 double getGaussian( double var, double mean = 0.0 ); 00065 00066 private: 00068 RandomGeneratorPrivate* prive; 00070 int seedv; 00071 }; 00072 00073 } // end namespace farsa 00074 00075 #endif