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/build/buildd/coinor-cbc-2.5.0/debian/tmp/usr/include/coin/CbcBranchToFixLots.hpp

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00001 // Edwin 11/13/2009-- carved out of CbcBranchCut
00002 #ifndef CbcBranchToFixLots_H
00003 #define CbcBranchToFixLots_H
00004 
00005 #include "CbcBranchCut.hpp"
00006 #include "CbcBranchBase.hpp"
00007 #include "OsiRowCut.hpp"
00008 #include "CoinPackedMatrix.hpp"
00009 
00017 class CbcBranchToFixLots : public CbcBranchCut {
00018 
00019 public:
00020 
00021     // Default Constructor
00022     CbcBranchToFixLots ();
00023 
00030     CbcBranchToFixLots (CbcModel * model, double djTolerance,
00031                         double fractionFixed, int depth,
00032                         int numberClean = 0,
00033                         const char * mark = NULL,
00034                         bool alwaysCreate = false);
00035 
00036     // Copy constructor
00037     CbcBranchToFixLots ( const CbcBranchToFixLots &);
00038 
00040     virtual CbcObject * clone() const;
00041 
00042     // Assignment operator
00043     CbcBranchToFixLots & operator=( const CbcBranchToFixLots& rhs);
00044 
00045     // Destructor
00046     ~CbcBranchToFixLots ();
00047 
00052     int shallWe() const;
00053 
00055     virtual double infeasibility(const OsiBranchingInformation * info,
00056                                  int &preferredWay) const;
00059     virtual bool canDoHeuristics() const {
00060         return true;
00061     }
00062 
00064     virtual CbcBranchingObject * createCbcBranch(OsiSolverInterface * solver, const OsiBranchingInformation * info, int way) ;
00066     virtual void redoSequenceEtc(CbcModel * model, int numberColumns, const int * originalColumns);
00067 
00068 
00069 protected:
00071 
00073     double djTolerance_;
00075     double fractionFixed_;
00077     char * mark_;
00079     CoinPackedMatrix matrixByRow_;
00081     int depth_;
00083     int numberClean_;
00085     bool alwaysCreate_;
00086 };
00087 #endif
00088 

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