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trunk/paradiseo-mo/src/moSimpleMoveTabuList.h
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@ -1,151 +1,154 @@
/*
* <moSimpleMoveTabuList.h>
* Copyright (C) DOLPHIN Project-Team, INRIA Futurs, 2006-2007
* (C) OPAC Team, LIFL, 2002-2007
*
* Sébastien Cahon, Jean-Charles Boisson (Jean-Charles.Boisson@lifl.fr)
*
* This software is governed by the CeCILL license under French law and
* abiding by the rules of distribution of free software. You can use,
* modify and/ or redistribute the software under the terms of the CeCILL
* license as circulated by CEA, CNRS and INRIA at the following URL
* "http://www.cecill.info".
*
* As a counterpart to the access to the source code and rights to copy,
* modify and redistribute granted by the license, users are provided only
* with a limited warranty and the software's author, the holder of the
* economic rights, and the successive licensors have only limited liability.
*
* In this respect, the user's attention is drawn to the risks associated
* with loading, using, modifying and/or developing or reproducing the
* software by the user in light of its specific status of free software,
* that may mean that it is complicated to manipulate, and that also
* therefore means that it is reserved for developers and experienced
* professionals having in-depth computer knowledge. Users are therefore
* encouraged to load and test the software's suitability as regards their
* requirements in conditions enabling the security of their systems and/or
* data to be ensured and, more generally, to use and operate it in the
* same conditions as regards security.
* The fact that you are presently reading this means that you have had
* knowledge of the CeCILL license and that you accept its terms.
*
* ParadisEO WebSite : http://paradiseo.gforge.inria.fr
* Contact: paradiseo-help@lists.gforge.inria.fr
*
<moSimpleMoveTabuList.h>
Copyright (C) DOLPHIN Project-Team, INRIA Futurs, 2006-2008
(C) OPAC Team, LIFL, 2002-2008
Sébastien Cahon, Jean-Charles Boisson (Jean-Charles.Boisson@lifl.fr)
This software is governed by the CeCILL license under French law and
abiding by the rules of distribution of free software. You can use,
modify and/ or redistribute the software under the terms of the CeCILL
license as circulated by CEA, CNRS and INRIA at the following URL
"http://www.cecill.info".
As a counterpart to the access to the source code and rights to copy,
modify and redistribute granted by the license, users are provided only
with a limited warranty and the software's author, the holder of the
economic rights, and the successive licensors have only limited liability.
In this respect, the user's attention is drawn to the risks associated
with loading, using, modifying and/or developing or reproducing the
software by the user in light of its specific status of free software,
that may mean that it is complicated to manipulate, and that also
therefore means that it is reserved for developers and experienced
professionals having in-depth computer knowledge. Users are therefore
encouraged to load and test the software's suitability as regards their
requirements in conditions enabling the security of their systems and/or
data to be ensured and, more generally, to use and operate it in the
same conditions as regards security.
The fact that you are presently reading this means that you have had
knowledge of the CeCILL license and that you accept its terms.
ParadisEO WebSite : http://paradiseo.gforge.inria.fr
Contact: paradiseo-help@lists.gforge.inria.fr
*/
#ifndef __moSimpleMoveTabuList_h
#define __moSimpleMoveTabuList_h
#ifndef _moSimpleMoveTabuList_h
#define _moSimpleMoveTabuList_h
#include <list>
#include <iterator>
#include "moTabuList.h"
#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;
//! Alias for an iterator of a move list.
typedef typename std::list<M>::iterator moveIterator;
//! Constructor
/*
\param _size The maximum size of the move tabu list.
*/
moSimpleMoveTabuList(unsigned int _memory_maximum_size): memory_maximum_size(_memory_maximum_size), memory_size(0)
{}
//! Function that indicates if, in a given state, the _move is tabu or not.
/*!
\param _move A given moMove.
\param _solution A solution.
\return true or false.
*/
bool operator () (const M & _move, const EOT & _solution)
{
public:
//! Alias for the type
typedef typename M::EOType EOT;
//! Constructor
/*
\param __size The maximum size of the move tabu list.
*/
moSimpleMoveTabuList(unsigned int __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)
moveIterator it;
//code only used to avoid warning because _solution is not used in this function.
EOT solution=(EOT)_solution;
it=tabuList.begin();
// The code is !(*it)==_move instead of (*it)!=_move because people designing their specific move representation
// will write the "==" operator (I hope) but not necessary the "!=" operator.
while ( it!=tabuList.end() && !((*it)==_move) )
{
if (currentSize!=0)
{
// Useful in the case of a move has been kept thanks to the moAspirCrit.
// In this case, the move can already be in the tabuList.
removeMove(__move);
}
tabuList.push_back(__move);
if (currentSize==maxSize)
{
tabuList.erase(tabuList.begin());
}
else
{
currentSize++;
}
it++;
}
void
update ()
{
//nothing to do
}
return it!=tabuList.end();
}
void
init ()
{
//nothing to do
}
void add(const M & _move, const EOT & _solution)
{
//code only used to avoid warning because _solution is not used in this function.
EOT solution=(EOT)_solution;
private:
if (memory_size!=0)
{
// Useful in the case of a move has been kept thanks to the moAspirCrit.
// In this case, the move can already be in the tabuList.
removeMove(_move);
}
//! Procedure that removes a given move from the tabu list (if it is into, else do nothing).
/*!
\param __move A given moMove.
*/
void
removeMove(const M & __move)
{
typename std::list<M>::iterator it;
tabuList.push_back(_move);
it=tabuList.begin();
while (it!=tabuList.end()&&(!((*it)==__move)))
{
it++;
}
if (memory_size == memory_maximum_size)
{
tabuList.erase(tabuList.begin());
}
else
{
memory_size++;
}
}
if (it!=tabuList.end())
{
tabuList.erase(it);
}
}
void update ()
{
//nothing to do
}
void init ()
{
//nothing to do
}
//! The maximum size of the tabu list.
unsigned int maxSize;
private:
//! The current size of the tabu list.
unsigned int currentSize;
//! Procedure that removes a given move from the tabu list (if it is into, else do nothing).
/*!
\param _move A given moMove.
*/
void removeMove(const M & _move)
{
moveIterator it;
it=tabuList.begin();
// The code is !(*it)==_move instead of (*it)!=_move because people designing their specific move representation
// will write the "==" operator (I hope) but not necessary the "!=" operator.
while ( it!=tabuList.end() && (!((*it)==_move) ))
{
it++;
}
if (it!=tabuList.end())
{
tabuList.erase(it);
}
}
//! The move tabu list.
std::list<M> tabuList;
};
//! The maximum size of the tabu list.
unsigned int memory_maximum_size;
//! The current size of the tabu list.
unsigned int memory_size;
//! The move tabu list.
std::list<M> tabuList;
};
#endif