/*
* <moeoConvertPopToObjectiveVectors.h>
* Copyright (C) DOLPHIN Project-Team, INRIA Futurs, 2006-2007
* (C) OPAC Team, LIFL, 2002-2007
*
* Arnaud Liefooghe
*
* This software is governed by the CeCILL license under French law and
* abiding by the rules of distribution of free software.  You can  use,
* modify and/ or redistribute the software under the terms of the CeCILL
* license as circulated by CEA, CNRS and INRIA at the following URL
* "http://www.cecill.info".
*
* As a counterpart to the access to the source code and  rights to copy,
* modify and redistribute granted by the license, users are provided only
* with a limited warranty  and the software's author,  the holder of the
* economic rights,  and the successive licensors  have only  limited liability.
*
* In this respect, the user's attention is drawn to the risks associated
* with loading,  using,  modifying and/or developing or reproducing the
* software by the user in light of its specific status of free software,
* that may mean  that it is complicated to manipulate,  and  that  also
* therefore means  that it is reserved for developers  and  experienced
* professionals having in-depth computer knowledge. Users are therefore
* encouraged to load and test the software's suitability as regards their
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* same conditions as regards security.
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*
* ParadisEO WebSite : http://paradiseo.gforge.inria.fr
* Contact: paradiseo-help@lists.gforge.inria.fr
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*/
//-----------------------------------------------------------------------------

#ifndef MOEOPOPTOOBJECTIVEVECTORS_H_
#define MOEOPOPTOOBJECTIVEVECTORS_H_

#include <vector>
#include <eoFunctor.h>

/**
 * Functor allowing to get a vector of objective vectors from a population
 */
template < class MOEOT, class ObjectiveVector = typename MOEOT::ObjectiveVector >
class moeoConvertPopToObjectiveVectors : public eoUF < const eoPop < MOEOT >, const std::vector < ObjectiveVector > >
  {
  public:

    /**
     * Returns a vector of the objective vectors from the population _pop
     * @param _pop the population
     */
    const std::vector < ObjectiveVector > operator()(const eoPop < MOEOT > _pop)
    {
      std::vector < ObjectiveVector > result;
      result.resize(_pop.size());
      for (unsigned int i=0; i<_pop.size(); i++)
        {
          result.push_back(_pop[i].objectiveVector());
        }
      return result;
    }

  };

#endif /*MOEOPOPTOOBJECTIVEVECTORS_H_*/