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New class: moeoPtrComparator, which is used to sort the population using pointers to true individuals. This improves performance in situations that individuals copy constructors are computationally expensive. Also, moeoFrontbyFrontCrowdingDiversityAssignment class is updated accordingly.

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git-svn-id: svn://scm.gforge.inria.fr/svnroot/paradiseo@1430 331e1502-861f-0410-8da2-ba01fb791d7f
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wcancino 2009-02-12 13:12:23 +00:00
commit 3fede999a6
2 changed files with 96 additions and 20 deletions
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trunk/paradiseo-moeo/src/comparator/moeoPtrComparator.h Normal file
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/***************************************************************************
* Copyright (C) 2008 by Waldo Cancino *
* wcancino@icmc.usp.br *
* *
* This program is free software; you can redistribute it and/or modify *
* it under the terms of the GNU General Public License as published by *
* the Free Software Foundation; either version 2 of the License, or *
* (at your option) any later version. *
* *
* This program is distributed in the hope that it will be useful, *
* but WITHOUT ANY WARRANTY; without even the implied warranty of *
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
* GNU General Public License for more details. *
* *
* You should have received a copy of the GNU General Public License *
* along with this program; if not, write to the *
* Free Software Foundation, Inc., *
* 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
***************************************************************************/
#ifndef MOEOPTRCOMPARATOR_H_
#define MOEOPTRCOMPARATOR_H_
#include <comparator/moeoComparator.h>
/**
* Functor allowing to compare two solutions.referenced by pointers.
* Several MOEO related stuff have to sort populations according some criterion
* Instead to do this, we used a vector whose elements are pointers to true individuals
*/
template < class MOEOT >
class moeoPtrComparator : public eoBF < const MOEOT *, const MOEOT *, const bool >
{
public:
/**
* Ctor with a comparator
* @param _cmp comparator to be employed
*/
moeoPtrComparator( moeoComparator<MOEOT> & _cmp) : cmp(_cmp) {}
/** compare two const individuals */
const bool operator() (const MOEOT *ptr1, const MOEOT *ptr2)
{
return cmp(*ptr1, *ptr2);
}
/** compare two non const individuals */
const bool operator() (MOEOT *ptr1, MOEOT *ptr2)
{
return cmp(*ptr1, *ptr2);
}
private:
moeoComparator<MOEOT> &cmp;
};
#endif /*MOEOPTRCOMPARATOR_H_*/