68 lines
2.4 KiB
C++
68 lines
2.4 KiB
C++
/** -*- mode: c++; c-indent-level: 4; c++-member-init-indent: 8; comment-column: 35; -*-
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-----------------------------------------------------------------------------
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eoEvalFuncPtr.h
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Converts a classical C fitness evaluation function into a fitness
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evaluation object
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(c) GeNeura Team, 2000
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This library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2 of the License, or (at your option) any later version.
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This library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with this library; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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Contact: todos@geneura.ugr.es, http://geneura.ugr.es
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*/
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//-----------------------------------------------------------------------------
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#ifndef EOEVALFUNCPTR_H
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#define EOEVALFUNCPTR_H
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#include <eoEvalFunc.h>
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/** EOEvalFuncPtr: This class
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* takes an existing function pointer and converts it into a evaluation
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* function class. That way, old style C or C++ functions can be adapted to EO
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* function classes.
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*
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* @ingroup Evaluation
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*/
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#ifdef _MSC_VER
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template< class EOT, class FitT = EOT::Fitness, class FunctionArg = const EOT& >
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#else
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template< class EOT, class FitT = typename EOT::Fitness, class FunctionArg = const EOT& >
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#endif
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struct eoEvalFuncPtr: public eoEvalFunc<EOT> {
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/** Applies the function to the chromosome and sets the fitness of the
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Chrom. Thus, the evaluation function need not be worried about that.
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@param _eval pointer to the evaluation function, takes a EOT as an
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argument and returns the fitness
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@return the evaluated fitness for that object.
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*/
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eoEvalFuncPtr( FitT (* _eval)( FunctionArg ) )
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: eoEvalFunc<EOT>(), evalFunc( _eval ) {};
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/// Effectively applies the evaluation function to an EO
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virtual void operator() ( EOT & _eo )
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{
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if (_eo.invalid())
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_eo.fitness((*evalFunc)( _eo ));
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};
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private:
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FitT (* evalFunc )( FunctionArg );
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};
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#endif
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