ClpLinearObjective.hpp

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/* $Id: ClpLinearObjective.hpp 1665 2011-01-04 17:55:54Z lou $ */
// Copyright (C) 2003, International Business Machines
// Corporation and others.  All Rights Reserved.
// This code is licensed under the terms of the Eclipse Public License (EPL).

#ifndef ClpLinearObjective_H
#define ClpLinearObjective_H

#include "ClpObjective.hpp"

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

class ClpLinearObjective : 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) ;




     ClpLinearObjective();

     ClpLinearObjective(const double * objective, int numberColumns);

     ClpLinearObjective(const ClpLinearObjective &);
     ClpLinearObjective (const ClpLinearObjective &rhs, int numberColumns,
                         const int * whichColumns) ;

     ClpLinearObjective & operator=(const ClpLinearObjective& rhs);

     virtual ~ClpLinearObjective ();

     virtual ClpObjective * clone() const;
     virtual ClpObjective * subsetClone (int numberColumns,
                                         const int * whichColumns) const;


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

private:
     double * objective_;
     int numberColumns_;
};

#endif