BernoulliRng.cpp

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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

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