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# /home/coin/svn-release/Alps-1.4.8/Clp/src/ClpGubDynamicMatrix.hpp

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    00001 /* $Id: ClpGubDynamicMatrix.hpp 1665 2011-01-04 17:55:54Z lou $ */
    00002 // Copyright (C) 2003, International Business Machines
    00003 // Corporation and others.  All Rights Reserved.
    00004 // This code is licensed under the terms of the Eclipse Public License (EPL).
    00005
    00006 #ifndef ClpGubDynamicMatrix_H
    00007 #define ClpGubDynamicMatrix_H
    00008
    00009
    00010 #include "CoinPragma.hpp"
    00011
    00012 #include "ClpGubMatrix.hpp"
    00020 class ClpGubDynamicMatrix : public ClpGubMatrix {
    00021
    00022 public:
    00025
    00026      virtual void partialPricing(ClpSimplex * model, double start, double end,
    00027                                  int & bestSequence, int & numberWanted);
    00038      virtual int synchronize(ClpSimplex * model, int mode);
    00040      virtual void useEffectiveRhs(ClpSimplex * model, bool cheapest = true);
    00044      virtual int updatePivot(ClpSimplex * model, double oldInValue, double oldOutValue);
    00046      void insertNonBasic(int sequence, int iSet);
    00050      virtual double * rhsOffset(ClpSimplex * model, bool forceRefresh = false,
    00051                                 bool check = false);
    00052
    00053      using ClpPackedMatrix::times ;
    00057      virtual void times(double scalar,
    00058                         const double * x, double * y) const;
    00062      virtual int checkFeasible(ClpSimplex * model, double & sum) const;
    00064      void cleanData(ClpSimplex * model);
    00066
    00067
    00068
    00072      ClpGubDynamicMatrix();
    00074      virtual ~ClpGubDynamicMatrix();
    00076
    00080      ClpGubDynamicMatrix(const ClpGubDynamicMatrix&);
    00085      ClpGubDynamicMatrix(ClpSimplex * model, int numberSets,
    00086                          int numberColumns, const int * starts,
    00087                          const double * lower, const double * upper,
    00088                          const int * startColumn, const int * row,
    00089                          const double * element, const double * cost,
    00090                          const double * lowerColumn = NULL, const double * upperColumn = NULL,
    00091                          const unsigned char * status = NULL);
    00092
    00093      ClpGubDynamicMatrix& operator=(const ClpGubDynamicMatrix&);
    00095      virtual ClpMatrixBase * clone() const ;
    00097
    00099
    00100      enum DynamicStatus {
    00101           inSmall = 0x01,
    00102           atUpperBound = 0x02,
    00103           atLowerBound = 0x03
    00104      };
    00106      inline bool flagged(int i) const {
    00107           return (dynamicStatus_[i] & 8) != 0;
    00108      }
    00109      inline void setFlagged(int i) {
    00110           dynamicStatus_[i] = static_cast<unsigned char>(dynamicStatus_[i] | 8);
    00111      }
    00112      inline void unsetFlagged(int i) {
    00113           dynamicStatus_[i] = static_cast<unsigned char>(dynamicStatus_[i] & ~8);
    00114      }
    00115      inline void setDynamicStatus(int sequence, DynamicStatus status) {
    00116           unsigned char & st_byte = dynamicStatus_[sequence];
    00117           st_byte = static_cast<unsigned char>(st_byte & ~7);
    00118           st_byte = static_cast<unsigned char>(st_byte | status);
    00119      }
    00120      inline DynamicStatus getDynamicStatus(int sequence) const {
    00121           return static_cast<DynamicStatus> (dynamicStatus_[sequence] & 7);
    00122      }
    00124      inline double objectiveOffset() const {
    00125           return objectiveOffset_;
    00126      }
    00128      inline CoinBigIndex * startColumn() const {
    00129           return startColumn_;
    00130      }
    00132      inline int * row() const {
    00133           return row_;
    00134      }
    00136      inline double * element() const {
    00137           return element_;
    00138      }
    00140      inline double * cost() const {
    00141           return cost_;
    00142      }
    00144      inline int * fullStart() const {
    00145           return fullStart_;
    00146      }
    00148      inline int * id() const {
    00149           return id_;
    00150      }
    00152      inline double * lowerColumn() const {
    00153           return lowerColumn_;
    00154      }
    00156      inline double * upperColumn() const {
    00157           return upperColumn_;
    00158      }
    00160      inline double * lowerSet() const {
    00161           return lowerSet_;
    00162      }
    00164      inline double * upperSet() const {
    00165           return upperSet_;
    00166      }
    00168      inline int numberGubColumns() const {
    00169           return numberGubColumns_;
    00170      }
    00172      inline int firstAvailable() const {
    00173           return firstAvailable_;
    00174      }
    00176      inline void setFirstAvailable(int value) {
    00177           firstAvailable_ = value;
    00178      }
    00180      inline int firstDynamic() const {
    00181           return firstDynamic_;
    00182      }
    00184      inline int lastDynamic() const {
    00185           return lastDynamic_;
    00186      }
    00188      inline int numberElements() const {
    00189           return numberElements_;
    00190      }
    00192      inline unsigned char * gubRowStatus() const {
    00193           return status_;
    00194      }
    00196      inline unsigned char * dynamicStatus() const {
    00197           return dynamicStatus_;
    00198      }
    00200      int whichSet (int sequence) const;
    00202
    00203
    00204 protected:
    00208
    00209      double objectiveOffset_;
    00211      CoinBigIndex * startColumn_;
    00213      int * row_;
    00215      double * element_;
    00217      double * cost_;
    00219      int * fullStart_;
    00221      int * id_;
    00223      unsigned char * dynamicStatus_;
    00225      double * lowerColumn_;
    00227      double * upperColumn_;
    00229      double * lowerSet_;
    00231      double * upperSet_;
    00233      int numberGubColumns_;
    00235      int firstAvailable_;
    00237      int savedFirstAvailable_;
    00239      int firstDynamic_;
    00241      int lastDynamic_;
    00243      int numberElements_;
    00245 };
    00246
    00247 #endif