93 lines
2.9 KiB
C++
93 lines
2.9 KiB
C++
/* -*- mode: c++; c-indent-level: 4; c++-member-init-indent: 8; comment-column: 35; -*-
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-----------------------------------------------------------------------------
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eoInserter.h
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Abstract population insertion operator, which is used by the eoGeneralOps
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to insert the results in the (intermediate) population. It also contains
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a direct descended eoPopInserter that defines a convenient inbetween class
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for working with eoPop<EOT>. The user will most likely derive from eoPopInserter
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rather than eoInserter.
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(c) Maarten Keijzer (mak@dhi.dk) and GeNeura Team, 1999, 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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#ifndef eoInserter_h
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#define eoInserter_h
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#include "eoPop.h"
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/**
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* eoInserter: Interface class that enables an operator to insert
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new individuals into the (intermediate) population.
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*/
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template <class EOT>
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class eoInserter : public eoObject
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{
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public :
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virtual ~eoInserter() {}
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struct eoInserterException{};
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virtual void insert(const EOT&) = 0; // can throw an eoInserterException
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};
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/**
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* eoPopInserter: In-between class that defines an initialization
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* of the eoIndividualInserter.
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*/
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template <class EOT>
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class eoPopInserter : public eoInserter<EOT>
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{
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public :
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eoPopInserter(void) : eoInserter<EOT>(), thePop(0) {}
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/// Binds the population to this class. This is an initialization routine used by breeders
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eoInserter<EOT>& operator()(eoPop<EOT>& _pop)
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{
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thePop = &_pop;
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return *this;
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}
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protected :
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eoPop<EOT>& pop(void) const { valid(); return *thePop; }
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private :
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void valid(void) const
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{
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if (thePop == 0)
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throw eoInserterException();
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}
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// Need a pointer as the inserter should be able to bind to different populations.
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// This is caused by the 'one template parameter only' convention in EO.
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eoPop<EOT>* thePop;
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// If eoGOpBreeder could be templatized over the inserter and the selector,
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// the pop could be a ref as this class could be created every time it is applied
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// and subsequently would get the population through the constructor
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};
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#endif
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