Coin-All: /home/coin/SVN-release/CoinAll-1.1.0/Clp/src/ClpConstraintQuadratic.hpp Source File

00001 // Copyright (C) 2007, International Business Machines
00002 // Corporation and others.  All Rights Reserved.
00003 #ifndef ClpConstraintQuadratic_H
00004 #define ClpConstraintQuadratic_H
00005 
00006 #include "ClpConstraint.hpp"
00007 
00008 //#############################################################################
00009 
00014 class ClpConstraintQuadratic : public ClpConstraint {
00015   
00016 public:
00017   
00019 
00020   
00021   
00028   virtual int gradient(const ClpSimplex * model,
00029                        const double * solution,
00030                        double * gradient,
00031                        double & functionValue ,
00032                        double & offset,
00033                        bool useScaling=false,
00034                        bool refresh=true) const ;
00036   virtual void resize(int newNumberColumns) ; 
00038   virtual void deleteSome(int numberToDelete, const int * which) ; 
00040   virtual void reallyScale(const double * columnScale) ;
00044   virtual int markNonlinear(char * which) const ;
00048   virtual int markNonzero(char * which) const;
00050   
00051   
00053 
00054 
00055   ClpConstraintQuadratic(); 
00056   
00058   ClpConstraintQuadratic(int row, int numberQuadraticColumns, int numberColumns,
00059                          const CoinBigIndex * start,
00060                          const int * column, const double * element);
00061   
00064   ClpConstraintQuadratic(const ClpConstraintQuadratic & rhs);
00065 
00067   ClpConstraintQuadratic & operator=(const ClpConstraintQuadratic& rhs);
00068   
00070   virtual ~ClpConstraintQuadratic ();
00071 
00073   virtual ClpConstraint * clone() const;
00075 
00076 
00077 
00078   virtual int numberCoefficients() const;
00080   inline int numberColumns() const
00081   {return numberColumns_;}
00083   inline CoinBigIndex * start() const
00084   { return start_;}
00086   inline const int * column() const
00087   { return column_;}
00089   inline const double * coefficient() const
00090   { return coefficient_;}
00092 
00093   //---------------------------------------------------------------------------
00094   
00095 private:
00098   CoinBigIndex * start_;
00100   int * column_;
00102   double * coefficient_;
00104   int numberColumns_;
00106   int numberCoefficients_;
00108   int numberQuadraticColumns_;
00110 };
00111 
00112 #endif