67 lines
2.1 KiB
C++
67 lines
2.1 KiB
C++
/*
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* Open BEAGLE
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* Copyright (C) 2001-2007 by Christian Gagne and Marc Parizeau
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*
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* Contact:
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* Laboratoire de Vision et Systemes Numeriques
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* Departement de genie electrique et de genie informatique
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* Universite Laval, Quebec, Canada, G1K 7P4
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* http://vision.gel.ulaval.ca
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*
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*/
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/*!
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* \file OneMaxEvalOp.cpp
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* \brief Implementation of the class OneMaxEvalOp.
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* \author Christian Gagne
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* \author Marc Parizeau
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* $Revision: 1.9.2.1 $
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* $Date: 2007/05/09 01:51:23 $
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*/
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#include "beagle/GA.hpp"
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#include "OneMaxEvalOp.hpp"
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#include <cmath>
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using namespace Beagle;
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/*!
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* \brief Construct the individual evaluation operator for the OneMax problem.
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*/
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OneMaxEvalOp::OneMaxEvalOp() :
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EvaluationOp("OneMaxEvalOp")
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{ }
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/*!
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* \brief Evaluate the fitness of the given individual.
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* \param inIndividual Current individual to evaluate.
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* \param ioContext Evolutionary context.
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* \return Handle to the fitness value of the individual.
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*/
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Fitness::Handle OneMaxEvalOp::evaluate(Individual& inIndividual, Context& ioContext)
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{
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Beagle_AssertM(inIndividual.size() == 1);
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GA::BitString::Handle lBitString = castHandleT<GA::BitString>(inIndividual[0]);
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unsigned int lCount = 0;
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for(unsigned int i=0; i<lBitString->size(); ++i) {
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if((*lBitString)[i] == true) ++lCount;
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}
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return new FitnessSimple(float(lCount));
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}
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