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# /home/coin/SVN-release/Osi-0.98.1/Clp/src/ClpGubDynamicMatrix.hpp

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    00001 // Copyright (C) 2003, International Business Machines
    00002 // Corporation and others.  All Rights Reserved.
    00003 #ifndef ClpGubDynamicMatrix_H
    00004 #define ClpGubDynamicMatrix_H
    00005
    00006
    00007 #include "CoinPragma.hpp"
    00008
    00009 #include "ClpGubMatrix.hpp"
    00017 class ClpGubDynamicMatrix : public ClpGubMatrix {
    00018
    00019 public:
    00022
    00023   virtual void partialPricing(ClpSimplex * model, double start, double end,
    00024                               int & bestSequence, int & numberWanted);
    00035   virtual int synchronize(ClpSimplex * model,int mode);
    00037   virtual void useEffectiveRhs(ClpSimplex * model,bool cheapest=true);
    00041   virtual int updatePivot(ClpSimplex * model,double oldInValue, double oldOutValue);
    00043   void insertNonBasic(int sequence, int iSet);
    00047   virtual double * rhsOffset(ClpSimplex * model,bool forceRefresh=false,
    00048                                 bool check=false);
    00049
    00050   using ClpPackedMatrix::times ;
    00054   virtual void times(double scalar,
    00055                        const double * x, double * y) const;
    00059   virtual int checkFeasible(ClpSimplex * model,double & sum) const;
    00061   void cleanData(ClpSimplex * model);
    00063
    00064
    00065
    00069   ClpGubDynamicMatrix();
    00071   virtual ~ClpGubDynamicMatrix();
    00073
    00077   ClpGubDynamicMatrix(const ClpGubDynamicMatrix&);
    00082   ClpGubDynamicMatrix(ClpSimplex * model, int numberSets,
    00083                       int numberColumns, const int * starts,
    00084                       const double * lower, const double * upper,
    00085                       const int * startColumn, const int * row,
    00086                       const double * element, const double * cost,
    00087                       const double * lowerColumn=NULL, const double * upperColumn=NULL,
    00088                       const unsigned char * status=NULL);
    00089
    00090   ClpGubDynamicMatrix& operator=(const ClpGubDynamicMatrix&);
    00092   virtual ClpMatrixBase * clone() const ;
    00094
    00096
    00097   enum DynamicStatus {
    00098     inSmall = 0x01,
    00099     atUpperBound = 0x02,
    00100     atLowerBound = 0x03
    00101   };
    00103   inline bool flagged(int i) const {
    00104     return (dynamicStatus_[i]&8)!=0;
    00105   }
    00106   inline void setFlagged(int i) {
    00107     dynamicStatus_[i] |= 8;
    00108   }
    00109   inline void unsetFlagged(int i) {
    00110     dynamicStatus_[i]  &= ~8;;
    00111   }
    00112   inline void setDynamicStatus(int sequence, DynamicStatus status)
    00113   {
    00114     unsigned char & st_byte = dynamicStatus_[sequence];
    00115     st_byte &= ~7;
    00116     st_byte |= status;
    00117   }
    00118   inline DynamicStatus getDynamicStatus(int sequence) const
    00119   {return static_cast<DynamicStatus> (dynamicStatus_[sequence]&7);}
    00121   inline double objectiveOffset() const
    00122   { return objectiveOffset_;}
    00124   inline CoinBigIndex * startColumn() const
    00125   { return startColumn_;}
    00127   inline int * row() const
    00128   { return row_;}
    00130   inline double * element() const
    00131   { return element_;}
    00133   inline double * cost() const
    00134   { return cost_;}
    00136   inline int * fullStart() const
    00137   { return fullStart_;}
    00139   inline int * id() const
    00140   { return id_;}
    00142   inline double * lowerColumn() const
    00143   { return lowerColumn_;}
    00145   inline double * upperColumn() const
    00146   { return upperColumn_;}
    00148   inline double * lowerSet() const
    00149   { return lowerSet_;}
    00151   inline double * upperSet() const
    00152   { return upperSet_;}
    00154   inline int numberGubColumns() const
    00155   { return numberGubColumns_;}
    00157   inline int firstAvailable() const
    00158   { return firstAvailable_;}
    00160   inline void setFirstAvailable(int value)
    00161   { firstAvailable_ = value;}
    00163   inline int firstDynamic() const
    00164   { return firstDynamic_;}
    00166   inline int lastDynamic() const
    00167   { return lastDynamic_;}
    00169   inline int numberElements() const
    00170   { return numberElements_;}
    00172   inline unsigned char * gubRowStatus() const
    00173   { return status_;}
    00175   inline unsigned char * dynamicStatus() const
    00176   { return dynamicStatus_;}
    00178   int whichSet (int sequence) const;
    00180
    00181
    00182 protected:
    00186
    00187   double objectiveOffset_;
    00189   CoinBigIndex * startColumn_;
    00191   int * row_;
    00193   double * element_;
    00195   double * cost_;
    00197   int * fullStart_;
    00199   int * id_;
    00201   unsigned char * dynamicStatus_;
    00203   double * lowerColumn_;
    00205   double * upperColumn_;
    00207   double * lowerSet_;
    00209   double * upperSet_;
    00211   int numberGubColumns_;
    00213   int firstAvailable_;
    00215   int savedFirstAvailable_;
    00217   int firstDynamic_;
    00219   int lastDynamic_;
    00221   int numberElements_;
    00223 };
    00224
    00225 #endif