params.hpp

//| This file is a part of the sferes2 framework.
//| Copyright 2009, ISIR / Universite Pierre et Marie Curie (UPMC)
//| Main contributor(s): Jean-Baptiste Mouret, mouret@isir.fr
//|
//| This software is a computer program whose purpose is to facilitate
//| experiments in evolutionary computation and evolutionary robotics.
//|
//| 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
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//|
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#ifndef _NN_PARAMS_HPP_
#define _NN_PARAMS_HPP_
namespace nn {
  namespace params {
    struct Dummy {
      friend inline std::ostream& operator<<(std::ostream& output, const Dummy& e);
      Dummy() : _x(42) {}
      void mutate() {}
      void random() {}
      void develop() {}
      size_t size() const {
        return 0;
      }
      float data(size_t i) const {
        return 0.0f;
      }
      float& operator[](size_t i) {
        return _x;
      }
      float operator[](size_t i) const {
        return _x;
      }
      template<typename A>
      void serialize(A& ar, unsigned int v) {}
      typedef float type_t;
     protected:
      float _x;
    };

    std::ostream& operator<<(std::ostream& output, const Dummy& e) {
      return output;
    }
    template<int S>
    struct Vectorf {
      typedef float type_t;
      BOOST_STATIC_CONSTEXPR int s=S;
      Vectorf() : _data(S) {}
      // magic cast !
      template<typename T>
      Vectorf(const T& v) :
        _data(S) {
        assert(v.size() == S);
        for (size_t i = 0; i < v.size(); ++i)
          _data[i] = v.data(i);
      }
      float data(size_t i) const {
        assert(i < S) ;
        return _data[i];
      }
      float& operator[](size_t i) {
        return _data[i];
      }
      float operator[](size_t i) const {
        return _data[i];
      }

      size_t size() const {
        return _data.size();
      }
      void mutate() {}
      void random() {}
      void develop() {}
     protected:
      std::vector<float> _data;
    };
  }



}
#endif