moSimple(Move/Solution)TabuList are added

git-svn-id: svn://scm.gforge.inria.fr/svnroot/paradiseo@281 331e1502-861f-0410-8da2-ba01fb791d7f

trunk/paradiseo-mo/src/moSimpleMoveTabuList.h

@@ -0,0 +1,98 @@
+// -*- mode: c++; c-indent-level: 4; c++-member-init-indent: 8; comment-column: 35; -*-
+
+// "moSimpleMoveTabuList.h"
+
+// (c) OPAC Team, LIFL, 2003-2007
+
+/* LICENCE TEXT 
+   
+   Contact: paradiseo-help@lists.gforge.inria.fr
+*/
+
+#ifndef __moSimpleMoveTabuList_h
+#define __moSimpleMoveTabuList_h
+
+#include <list>
+#include <iterator>
+
+#include "moTabuList.h"
+
+//! Class describing a move tabu list with a limited memory.
+template <class M>
+class moSimpleMoveTabuList: public moTabuList < M >
+{
+  
+public:
+  
+  //! Alias for the type
+  typedef typename M::EOType EOT;
+
+  //! Constructor
+  /*
+    \param __size The maximum size of the move tabu list.
+   */
+  moSimpleMoveTabuList(unsigned __size): maxSize(__size)
+  {
+    currentSize=0;
+  }
+
+   //! Function that indicates if, in a given state, the _move is tabu or not.
+  /*!
+    \param __move A given moMove.
+    \param __sol A solution.
+    \return true or false.
+  */
+  bool
+  operator () (const M & __move, const EOT & __sol) 
+  {
+    typename std::list<M>::iterator it;
+    
+    it=tabuList.begin();
+    while(it!=tabuList.end()&&(!((*it)==__move)))
+      {
+	it++;
+      }
+    
+    return it!=tabuList.end();
+  }
+  
+  void
+  add (const M & __move, const EOT & __sol)
+  {
+    tabuList.push_back(__move);
+    
+    if(currentSize==maxSize)
+      {
+	tabuList.erase(tabuList.begin());
+      }
+    else
+      {
+	currentSize++;
+      }
+  }
+  
+  void
+  update ()
+  {
+    //nothing to do
+  }
+
+  void
+  init ()
+  {
+    //nothing to do
+  }
+
+private:
+  
+  //! The maximum size of the tabu list.
+  unsigned maxSize;
+
+  //! The current size of the tabu list.
+  unsigned currentSize;
+  
+  //! The move tabu list.
+  std::list<M> tabuList;
+};
+
+#endif