00001 /* 00002 // $Id: //open/dev/fennel/common/BernoulliRng.cpp#4 $ 00003 // Fennel is a library of data storage and processing components. 00004 // Copyright (C) 2007-2009 The Eigenbase Project 00005 // Copyright (C) 2007-2009 SQLstream, Inc. 00006 // Copyright (C) 2007-2009 LucidEra, Inc. 00007 // 00008 // This program is free software; you can redistribute it and/or modify it 00009 // under the terms of the GNU General Public License as published by the Free 00010 // Software Foundation; either version 2 of the License, or (at your option) 00011 // any later version approved by The Eigenbase Project. 00012 // 00013 // This program is distributed in the hope that it will be useful, 00014 // but WITHOUT ANY WARRANTY; without even the implied warranty of 00015 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 00016 // GNU General Public License for more details. 00017 // 00018 // You should have received a copy of the GNU General Public License 00019 // along with this program; if not, write to the Free Software 00020 // Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA 00021 */ 00022 00023 #include "fennel/common/CommonPreamble.h" 00024 #include "BernoulliRng.h" 00025 00026 FENNEL_BEGIN_CPPFILE("$Id: //open/dev/fennel/common/BernoulliRng.cpp#4 $"); 00027 00028 BernoulliRng::BernoulliRng(float successProbability) 00029 : bernoulliDist(successProbability), rng(uniformRng, bernoulliDist) 00030 { 00031 } 00032 00033 00034 void BernoulliRng::reseed(boost::uint32_t seed) 00035 { 00036 uniformRng.seed(seed); 00037 } 00038 00039 bool BernoulliRng::nextValue() 00040 { 00041 return rng(); 00042 } 00043 00044 FENNEL_END_CPPFILE("$Id: //open/dev/fennel/common/BernoulliRng.cpp#4 $"); 00045 00046 // End BernoulliRng.cpp