ClpQuadraticObjective.hpp

// Copyright (C) 2003, International Business Machines
// Corporation and others.  All Rights Reserved.
#ifndef ClpQuadraticObjective_H
#define ClpQuadraticObjective_H

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

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

class ClpQuadraticObjective : public ClpObjective {
  
public:
  

  
  virtual double * gradient(const double * solution, double & offset,bool refresh);
  virtual void resize(int newNumberColumns) ; 
  virtual void deleteSome(int numberToDelete, const int * which) ; 
  
  
  


  ClpQuadraticObjective(); 
  
  ClpQuadraticObjective(const double * linearObjective, int numberColumns,
                        const CoinBigIndex * start,
                        const int * column, const double * element,
                        int numberExtendedColumns_=-1);
  
  ClpQuadraticObjective(const ClpQuadraticObjective &);
  ClpQuadraticObjective (const ClpQuadraticObjective &rhs,int numberColumns, 
                                      const int * whichColumns) ;
  
  ClpQuadraticObjective & operator=(const ClpQuadraticObjective& rhs);
  
  virtual ~ClpQuadraticObjective ();

  virtual ClpObjective * clone() const;
  virtual ClpObjective * subsetClone (int numberColumns, 
                                      const int * whichColumns) const;
 
  void loadQuadraticObjective(const int numberColumns, 
                              const CoinBigIndex * start,
                              const int * column, const double * element,
                              int numberExtendedColumns=-1);
  void loadQuadraticObjective (  const CoinPackedMatrix& matrix);
  void deleteQuadraticObjective();



   inline CoinPackedMatrix * quadraticObjective() const     { return quadraticObjective_; }
   inline double * linearObjective() const     { return objective_; }
  inline int numberExtendedColumns() const
  {return numberExtendedColumns_;};
  inline int numberColumns() const
  {return numberColumns_;};

  //---------------------------------------------------------------------------
  
private:
  CoinPackedMatrix * quadraticObjective_;
  double * objective_;
  double * gradient_;
  int numberColumns_;
  int numberExtendedColumns_;
};

#endif

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