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eodev/eo/tutorial/Templates/lessOffspringSameSelectorGenOp.tmpl
evomarc 7ec7a856e5 Modified the tempaltes to take into account
- the last modifications of the eopopulator class
- the include files (were totally missing in the old templates)
- JJ's demand for one class - one file :-)
2001-04-03 17:14:08 +00:00

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/*
Template for general operators
===============================
i.e. that takes any number of parents and generates any number of offspring
a GenOp that creates less offspring than there are parents
First version, get parents from populator using the ibbedded select() method
*/
#ifndef eoLessOffspringSameSelectorGenOp_H
#define eoLessOffspringSameSelectorGenOp_H
#include <eoGenOp.h>
template<class Indi>
class eoLessOffspringSameSelectorGenOp: public eoGenOp<Indi>
{
public:
/**
* (Default) Constructor.
*/
eoLessOffspringSameSelectorGenOp(paramType _anyParameter) :
anyParameter(_anyParameter) {}
/// The class name. Used to display statistics
string className() const { return "eoLessOffspringSameSelectorGenOp"; }
/// The TOTAL number of offspring (here = nb of remaining modified parents)
unsigned max_production(void) { return NbLeftParents; }
/**
* eoLesOffspringSameSelectorGenOp operator -
* gets extra parents from the populator
*
* @param _pop a POPULATOR (not a simple population)
*/
void apply(eoPopulator<EOT>& _plop)
{
// First, select as many parents as you will have offspring
EOT& parent1 = *_plop; // select the first parent
++_plop; // advance once for each selected parents
...
EOT& parentN = *_plop; // say you want N offspring
// Now select extra parents from the populator
EOT& parentN+1 = _plop.select();
...
EOT& parentN+K = _plop.select();
// modify the first N parents
...
// oh right, and invalidate their fitnesses
parent1.invalidate();
...
parentN.invalidate();
}
protected:
paramType anyParameter
};
#endif