c496c12f40
git-svn-id: svn://scm.gforge.inria.fr/svnroot/paradiseo@386 331e1502-861f-0410-8da2-ba01fb791d7f
64 lines
1.7 KiB
C++
64 lines
1.7 KiB
C++
// -*- mode: c++; c-indent-level: 4; c++-member-init-indent: 8; comment-column: 35; -*-
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//-----------------------------------------------------------------------------
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// FlowShopInit.h
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// (c) OPAC Team (LIFL), Dolphin Project (INRIA), 2007
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/*
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This library...
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Contact: paradiseo-help@lists.gforge.inria.fr, http://paradiseo.gforge.inria.fr
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*/
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//-----------------------------------------------------------------------------
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#ifndef FLOWSHOPINIT_H_
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#define FLOWSHOPINIT_H_
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#include <eoInit.h>
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#include "FlowShop.h"
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/**
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* Functor
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* Initialisation of a random genotype built by the default constructor of the eoFlowShop class
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*/
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class FlowShopInit: public eoInit<FlowShop> {
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public:
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/**
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* constructor
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* @param const unsigned _N the number of jobs to schedule
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*/
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FlowShopInit(const unsigned _N) {
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N = _N;
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}
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/**
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* randomize a genotype
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* @param FlowShop & _genotype a genotype that has been default-constructed
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*/
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void operator()(FlowShop & _genotype) {
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// scheduling vector
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vector<unsigned> scheduling(N);
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// initialisation of possible values
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vector<unsigned> possibles(N);
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for (unsigned i=0 ; i<N ; i++)
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possibles[i] = i;
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// random initialization
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unsigned rInd; // random index
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for (unsigned i=0; i<N; i++) {
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rInd = (unsigned) rng.uniform(N-i);
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scheduling[i] = possibles[rInd];
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possibles[rInd] = possibles[N-i-1];
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}
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_genotype.setScheduling(scheduling);
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_genotype.invalidate(); // IMPORTANT in case the _genotype is old
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}
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private:
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/** the number of jobs (size of a scheduling vector) */
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unsigned N;
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};
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#endif /*FLOWSHOPINIT_H_*/
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