paradiseo new mo added

git-svn-id: svn://scm.gforge.inria.fr/svnroot/paradiseo@1712 331e1502-861f-0410-8da2-ba01fb791d7f

trunk/paradiseo-mo/src/memory/moBestImprAspiration.h

@@ -0,0 +1,57 @@
+#ifndef _moBestImprAspiration_h
+#define _moBestImprAspiration_h
+
+#include <memory/moAspiration.h>
+
+/**
+ * Aspiration criteria accepts a solution better than the best so far
+ */
+template< class Neighbor >
+class moBestImprAspiration : public moAspiration<Neighbor>
+{
+public:
+
+	typedef typename Neighbor::EOT EOT;
+
+	/**
+	 * init the best solution
+	 * @param _sol the best solution found
+	 */
+	void init(EOT & _sol){
+		bestFoundSoFar = _sol;
+	}
+
+	/**
+	 * update the "bestFoundSoFar" if a best solution is found
+	 * @param _sol a solution
+	 * @param _neighbor a neighbor
+	 */
+	void update(EOT & _sol, Neighbor & _neighbor){
+		if (bestFoundSoFar.fitness() < _sol.fitness())
+			bestFoundSoFar = _sol;
+	}
+
+	/**
+	 * Test the tabu feature of the neighbor:
+	 * test if the neighbor's fitness is better than the "bestFoundSoFar" fitness
+	 * @param _sol a solution
+	 * @param _neighbor a neighbor
+	 * @return true if _neighbor fitness is better than the "bestFoundSoFar"
+	 */
+	bool operator()(EOT & _sol, Neighbor & _neighbor){
+		return (bestFoundSoFar.fitness() < _neighbor.fitness());
+	}
+
+	/**
+	 * Getter
+	 * @return a reference on the best found so far solution
+	 */
+	EOT& getBest(){
+		return bestFoundSoFar;
+	}
+
+private:
+	EOT bestFoundSoFar;
+};
+
+#endif