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eo/src/eoDetTournamentInserter.h

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+/* -*- mode: c++; c-indent-level: 4; c++-member-init-indent: 8; comment-column: 35; -*-
+
+  -----------------------------------------------------------------------------
+  eoDetTournamentInserter.h
+    Concrete steady state inserter. It is initialized with a population and 
+    inserts individuals in the population based on an inverse deterministic 
+    tournament
+
+ (c) Maarten Keijzer (mkeijzer@mad.scientist.com) and GeNeura Team, 1999, 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: todos@geneura.ugr.es, http://geneura.ugr.es
+ */
+
+#ifndef eoDetTournamentInserter_h
+#define eoDetTournamentInserter_h
+
+
+#include "eoSteadyStateInserter.h"
+#include "selectors.h"
+
+/**
+ * eoDetTournamentInserter: Uses an inverse deterministic tournament to figure
+ * out who gets overridden by the new individual. It resets the fitness of the
+ * individual.
+*/
+template <class EOT>
+class eoDetTournamentInserter : public eoSteadyStateInserter<EOT> 
+{
+    public :
+
+    eoDetTournamentInserter(eoEvalFunc<EOT>& _eval, unsigned _t_size) : t_size(_t_size), eoSteadyStateInserter<EOT>(_eval)
+    {
+        if (t_size < 2)
+        { // warning, error?
+            t_size = 2;
+        }
+    }
+        
+    void insert(const EOT& _eot)
+    {
+        EOT& eo = inverse_deterministic_tournament<EOT>(pop(), t_size);
+        eo = _eot; // overwrite loser of tournament
+
+        eo.invalidate(); // This line should probably be removed when all genetic operators do this themselves
+        eval(eo); // Evaluate after insert
+    }
+
+    string className(void) const { return "eoDetTournamentInserter"; }
+
+    private :
+
+        unsigned t_size;
+};
+
+#endif