ClpConstraintQuadratic.hpp

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/* $Id: ClpConstraintQuadratic.hpp 1665 2011-01-04 17:55:54Z lou $ */
// 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 ClpConstraintQuadratic_H
#define ClpConstraintQuadratic_H

#include "ClpConstraint.hpp"

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

class ClpConstraintQuadratic : public ClpConstraint {

public:




     virtual int gradient(const ClpSimplex * model,
                          const double * solution,
                          double * gradient,
                          double & functionValue ,
                          double & offset,
                          bool useScaling = false,
                          bool refresh = true) 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) const ;
     virtual int markNonzero(char * which) const;



     ClpConstraintQuadratic();

     ClpConstraintQuadratic(int row, int numberQuadraticColumns, int numberColumns,
                            const CoinBigIndex * start,
                            const int * column, const double * element);

     ClpConstraintQuadratic(const ClpConstraintQuadratic & rhs);

     ClpConstraintQuadratic & operator=(const ClpConstraintQuadratic& rhs);

     virtual ~ClpConstraintQuadratic ();

     virtual ClpConstraint * clone() const;

     virtual int numberCoefficients() const;
     inline int numberColumns() const {
          return numberColumns_;
     }
     inline CoinBigIndex * start() const {
          return start_;
     }
     inline const int * column() const {
          return column_;
     }
     inline const double * coefficient() const {
          return coefficient_;
     }

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

private:
     CoinBigIndex * start_;
     int * column_;
     double * coefficient_;
     int numberColumns_;
     int numberCoefficients_;
     int numberQuadraticColumns_;
};

#endif