CbcHeuristicVND.hpp

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// $Id: CbcHeuristicVND.hpp 1899 2013-04-09 18:12:08Z stefan $
// Copyright (C) 2006, International Business Machines
// Corporation and others.  All Rights Reserved.
// This code is licensed under the terms of the Eclipse Public License (EPL).
 
// edwin 12/5/09 carved out of CbcHeuristicRINS
 
#ifndef CbcHeuristicVND_H
#define CbcHeuristicVND_H
 
#include "CbcHeuristic.hpp"
 
 
class CbcHeuristicVND : public CbcHeuristic {
public:
 
    // Default Constructor
    CbcHeuristicVND ();
 
    /* Constructor with model - assumed before cuts
       Initial version does not do Lps
    */
    CbcHeuristicVND (CbcModel & model);
 
    // Copy constructor
    CbcHeuristicVND ( const CbcHeuristicVND &);
 
    // Destructor
    ~CbcHeuristicVND ();
 
    virtual CbcHeuristic * clone() const;
 
 
    CbcHeuristicVND & operator=(const CbcHeuristicVND& rhs);
 
    virtual void generateCpp( FILE * fp) ;
 
    virtual void resetModel(CbcModel * model);
 
    virtual void setModel(CbcModel * model);
 
    using CbcHeuristic::solution ;
    virtual int solution(double & objectiveValue,
                         double * newSolution);
    int solutionFix(double & objectiveValue,
                    double * newSolution,
                    const int * keep);
 
    inline void setHowOften(int value) {
        howOften_ = value;
    }
    inline double * baseSolution() const {
        return baseSolution_;
    }
 
protected:
    // Data
 
    int numberSolutions_;
    int howOften_;
    int numberSuccesses_;
    int numberTries_;
    int lastNode_;
    int stepSize_;
    int k_;
    int kmax_;
    int nDifferent_;
    double * baseSolution_;
};
 
#endif