- Main Page
- Classes
- Files

- Search for |

# moBestImprSelect.h

    00001 /*
    00002   <moBestImprSelect.h>
    00003   Copyright (C) DOLPHIN Project-Team, INRIA Futurs, 2006-2008
    00004   (C) OPAC Team, LIFL, 2002-2008
    00005
    00006   Sébastien Cahon, Jean-Charles Boisson (Jean-Charles.Boisson@lifl.fr)
    00007
    00008   This software is governed by the CeCILL license under French law and
    00009   abiding by the rules of distribution of free software.  You can  use,
    00010   modify and/ or redistribute the software under the terms of the CeCILL
    00011   license as circulated by CEA, CNRS and INRIA at the following URL
    00012   "http://www.cecill.info".
    00013
    00014   As a counterpart to the access to the source code and  rights to copy,
    00015   modify and redistribute granted by the license, users are provided only
    00016   with a limited warranty  and the software's author,  the holder of the
    00017   economic rights,  and the successive licensors  have only  limited liability.
    00018
    00019   In this respect, the user's attention is drawn to the risks associated
    00020   with loading,  using,  modifying and/or developing or reproducing the
    00021   software by the user in light of its specific status of free software,
    00022   that may mean  that it is complicated to manipulate,  and  that  also
    00023   therefore means  that it is reserved for developers  and  experienced
    00024   professionals having in-depth computer knowledge. Users are therefore
    00025   encouraged to load and test the software's suitability as regards their
    00026   requirements in conditions enabling the security of their systems and/or
    00027   data to be ensured and,  more generally, to use and operate it in the
    00028   same conditions as regards security.
    00029   The fact that you are presently reading this means that you have had
    00030   knowledge of the CeCILL license and that you accept its terms.
    00031
    00032   ParadisEO WebSite : http://paradiseo.gforge.inria.fr
    00033   Contact: paradiseo-help@lists.gforge.inria.fr
    00034 */
    00035
    00036 #ifndef _moBestImprSelect_h
    00037 #define _moBestImprSelect_h
    00038
    00039 #include <moMoveSelect.h>
    00040
    00042
    00046 template < class M >
    00047 class moBestImprSelect:public moMoveSelect < M >
    00048 {
    00049  public:
    00050
    00052   typedef typename M::EOType::Fitness Fitness;
    00053
    00055
    00058   void init (const Fitness & _fitness)
    00059   {
    00060     //Code only used to avoid warning because _fitness is not used in this procedure.
    00061     Fitness fitness=(Fitness)_fitness;
    00062
    00063     first_time = true;
    00064   }
    00065
    00066
    00068
    00076   bool update (const M & _move, const Fitness & _fitness)
    00077   {
    00078     if ( first_time || (_fitness > best_fitness) )
    00079       {
    00080         best_fitness = _fitness;
    00081         best_move = _move;
    00082
    00083         first_time = false;
    00084       }
    00085
    00086     return true;
    00087   }
    00088
    00090
    00094   void operator () (M & _move, Fitness & _fitness)
    00095   {
    00096     if(first_time)
    00097       {
    00098         throw std::runtime_error("[moBestImprSelect.h]: no move or/and no fitness already saved, update has to be called first.");
    00099       }
    00100
    00101     _move = best_move;
    00102     _fitness = best_fitness;
    00103   }
    00104
    00105  private:
    00106
    00108   bool first_time;
    00109
    00111   M best_move;
    00112
    00114   Fitness best_fitness;
    00115 };
    00116
    00117 #endif