edoHyperVolume.h

/*
The Evolving Distribution Objects framework (EDO) is a template-based,
ANSI-C++ evolutionary computation library which helps you to write your
own estimation of distribution algorithms.

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 2.1 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., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA

Copyright (C) 2010 Thales group
*/
/*
Authors:
    Johann Dréo <johann.dreo@thalesgroup.com>
    Caner Candan <caner.candan@thalesgroup.com>
*/

#ifndef _edoHyperVolume_h
#define _edoHyperVolume_h


template < typename EOT >
class edoHyperVolume
{
public:
    typedef typename EOT::AtomType AtomType;

    edoHyperVolume() : _hv(1) {}

    void update(AtomType v)
    {
        _hv *= ::sqrt( v );

        assert( _hv <= std::numeric_limits< AtomType >::max() );
    }

    AtomType get_hypervolume() const { return _hv; }

protected:
    AtomType _hv;
};

#endif // !_edoHyperVolume_h