ClpAmplObjective.hpp

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/* $Id: ClpAmplObjective.hpp 2465 2019-01-03 19:26:52Z unxusr $ */
// Copyright (C) 2007, International Business Machines
// Corporation and others.  All Rights Reserved.
// This code is licensed under the terms of the Eclipse Public License (EPL).

#ifndef ClpAmplObjective_H
#define ClpAmplObjective_H

#include "ClpObjective.hpp"
#include "CoinPackedMatrix.hpp"

//#############################################################################

class ClpAmplObjective : public ClpObjective {

public:


  virtual double *gradient(const ClpSimplex *model,
    const double *solution, double &offset, bool refresh,
    int includeLinear = 2);

  virtual double reducedGradient(ClpSimplex *model, double *region,
    bool useFeasibleCosts);
  virtual double stepLength(ClpSimplex *model,
    const double *solution,
    const double *change,
    double maximumTheta,
    double &currentObj,
    double &predictedObj,
    double &thetaObj);
  virtual double objectiveValue(const ClpSimplex *model, const double *solution) const;
  virtual void resize(int newNumberColumns);
  virtual void deleteSome(int numberToDelete, const int *which);
  virtual void reallyScale(const double *columnScale);
  virtual int markNonlinear(char *which);

  virtual void newXValues();


  ClpAmplObjective();

  ClpAmplObjective(void *amplInfo);

  ClpAmplObjective(const ClpAmplObjective &rhs);

  ClpAmplObjective &operator=(const ClpAmplObjective &rhs);

  virtual ~ClpAmplObjective();

  virtual ClpObjective *clone() const;


  double *linearObjective() const;

  //---------------------------------------------------------------------------

private:
  double offset_;
  void *amplObjective_;
  double *objective_;
  double *gradient_;
};

#endif

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