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# /home/coin/SVN-release/Alps-1.2.1/Clp/src/ClpConstraintQuadratic.hpp

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    00001 /* $Id: ClpConstraintQuadratic.hpp 1525 2010-02-26 17:27:59Z mjs $ */
    00002 // Copyright (C) 2007, International Business Machines
    00003 // Corporation and others.  All Rights Reserved.
    00004 #ifndef ClpConstraintQuadratic_H
    00005 #define ClpConstraintQuadratic_H
    00006
    00007 #include "ClpConstraint.hpp"
    00008
    00009 //#############################################################################
    00010
    00015 class ClpConstraintQuadratic : public ClpConstraint {
    00016
    00017 public:
    00018
    00020
    00021
    00022
    00029      virtual int gradient(const ClpSimplex * model,
    00030                           const double * solution,
    00031                           double * gradient,
    00032                           double & functionValue ,
    00033                           double & offset,
    00034                           bool useScaling = false,
    00035                           bool refresh = true) const ;
    00037      virtual void resize(int newNumberColumns) ;
    00039      virtual void deleteSome(int numberToDelete, const int * which) ;
    00041      virtual void reallyScale(const double * columnScale) ;
    00045      virtual int markNonlinear(char * which) const ;
    00049      virtual int markNonzero(char * which) const;
    00051
    00052
    00054
    00055
    00056      ClpConstraintQuadratic();
    00057
    00059      ClpConstraintQuadratic(int row, int numberQuadraticColumns, int numberColumns,
    00060                             const CoinBigIndex * start,
    00061                             const int * column, const double * element);
    00062
    00065      ClpConstraintQuadratic(const ClpConstraintQuadratic & rhs);
    00066
    00068      ClpConstraintQuadratic & operator=(const ClpConstraintQuadratic& rhs);
    00069
    00071      virtual ~ClpConstraintQuadratic ();
    00072
    00074      virtual ClpConstraint * clone() const;
    00076
    00077
    00078
    00079      virtual int numberCoefficients() const;
    00081      inline int numberColumns() const {
    00082           return numberColumns_;
    00083      }
    00085      inline CoinBigIndex * start() const {
    00086           return start_;
    00087      }
    00089      inline const int * column() const {
    00090           return column_;
    00091      }
    00093      inline const double * coefficient() const {
    00094           return coefficient_;
    00095      }
    00097
    00098      //---------------------------------------------------------------------------
    00099
    00100 private:
    00103      CoinBigIndex * start_;
    00105      int * column_;
    00107      double * coefficient_;
    00109      int numberColumns_;
    00111      int numberCoefficients_;
    00113      int numberQuadraticColumns_;
    00115 };
    00116
    00117 #endif