CbcHeuristicVND.hpp

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// $Id: CbcHeuristicVND.hpp 2465 2019-01-03 19:26:52Z unxusr $
// 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

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