4c21c72510
git-svn-id: svn://scm.gforge.inria.fr/svnroot/paradiseo@152 331e1502-861f-0410-8da2-ba01fb791d7f
68 lines
1.6 KiB
C++
68 lines
1.6 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), 2006
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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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/**
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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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{
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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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{
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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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{
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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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{
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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
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