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/build/buildd/clp-1.11.1/Clp/src/ClpConstraintLinear.hpp

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00001 /* $Id: ClpConstraintLinear.hpp 1370 2009-06-04 09:37:13Z forrest $ */
00002 // Copyright (C) 2007, International Business Machines
00003 // Corporation and others.  All Rights Reserved.
00004 #ifndef ClpConstraintLinear_H
00005 #define ClpConstraintLinear_H
00006 
00007 #include "ClpConstraint.hpp"
00008 
00009 //#############################################################################
00010 
00015 class ClpConstraintLinear : 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   ClpConstraintLinear(); 
00057   
00059   ClpConstraintLinear(int row, int numberCoefficients, int numberColumns,
00060                       const int * column, const double * element);
00061   
00064   ClpConstraintLinear(const ClpConstraintLinear & rhs);
00065 
00067   ClpConstraintLinear & operator=(const ClpConstraintLinear& rhs);
00068   
00070   virtual ~ClpConstraintLinear ();
00071 
00073   virtual ClpConstraint * clone() const;
00075 
00076 
00077 
00078   virtual int numberCoefficients() const;
00080   inline int numberColumns() const
00081   {return numberColumns_;}
00083   inline const int * column() const
00084   { return column_;}
00086   inline const double * coefficient() const
00087   { return coefficient_;}
00089 
00090   //---------------------------------------------------------------------------
00091   
00092 private:
00095   int * column_;
00097   double * coefficient_;
00099   int numberColumns_;
00101   int numberCoefficients_;
00103 };
00104 
00105 #endif

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