eovector.h

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/* (C) GeNeura Team, 2000 - EEAAX 1999 - Maarten Keijzer 2000

This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2 of the License, or (at your option) any later version.

This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
Lesser General Public License for more details.

You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA

Contact:     [e-mail]
Old contact: [e-mail], http://geneura.ugr.es
             [e-mail]
             [e-mail]
*/

#ifndef _eoVector_h
#define _eoVector_h

#include <vector>
#include <iterator>
#include <EO.h>

/** Base class for fixed length chromosomes

It just derives from EO and std::vector and redirects the smaller than
operator to EO (fitness based comparison).

GeneType must have the following methods: void ctor (needed for the
std::vector<>), copy ctor,
*/
template <class FitT, class GeneType>
class eoVector : public EO<FitT>, public std::vector<GeneType>
{
public:

    using EO<FitT>::invalidate;
    using std::vector<GeneType>::operator[];
    using std::vector<GeneType>::begin;
    using std::vector<GeneType>::end;
    using std::vector<GeneType>::resize;
    using std::vector<GeneType>::size;

    typedef GeneType                AtomType;
    typedef std::vector<GeneType>   ContainerType;

    /** default constructor

    @param size Length of vector (default is 0)
    @param value Initial value of all elements (default is default value of type GeneType)
    */
    eoVector(unsigned size = 0, GeneType value = GeneType())
        : EO<FitT>(), std::vector<GeneType>(size, value)
        {}

    /// copy ctor abstracting from the FitT
    template <class OtherFitnessType>
    eoVector(const eoVector<OtherFitnessType, GeneType>& _vec) : std::vector<GeneType>(_vec)
        {}

    // we can't have a Ctor from a std::vector, it would create ambiguity
    //  with the copy Ctor
    void value(const std::vector<GeneType>& _v)
        {
            if (_v.size() != size())	   // safety check
            {
                if (size())		   // NOT an initial empty std::vector
                    std::cout << "Warning: Changing size in eoVector assignation"<<std::endl;
                resize(_v.size());
            }

            std::copy(_v.begin(), _v.end(), begin());
            invalidate();
        }

    /// to avoid conflicts between EO::operator< and std::vector<GeneType>::operator<
    bool operator<(const eoVector<FitT, GeneType>& _eo) const
        {
            return EO<FitT>::operator<(_eo);
        }

    /// printing...
    virtual void printOn(std::ostream& os) const
        {
            EO<FitT>::printOn(os);
            os << ' ';

            os << size() << ' ';

            std::copy(begin(), end(), std::ostream_iterator<AtomType>(os, " "));
        }

    /// reading...
    virtual void readFrom(std::istream& is)
        {
            EO<FitT>::readFrom(is);

            unsigned sz;
            is >> sz;

            resize(sz);
            unsigned i;

            for (i = 0; i < sz; ++i)
            {
                AtomType atom;
                is >> atom;
                operator[](i) = atom;
            }
        }
};

/** Less than

This is impemented to avoid conflicts between EO::operator< and
std::vector<GeneType>::operator<
*/
template <class FitT, class GeneType>
bool operator<(const eoVector<FitT, GeneType>& _eo1, const eoVector<FitT, GeneType>& _eo2)
{
    return _eo1.operator<(_eo2);
}


/** Greater than

This is impemented to avoid conflicts between EO::operator> and
std::vector<GeneType>::operator>
*/
template <class FitT, class GeneType>
bool operator>(const eoVector<FitT, GeneType>& _eo1, const eoVector<FitT, GeneType>& _eo2)
{
    return _eo1.operator>(_eo2);
}


#endif


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