/home/coin/SVN-release/CoinAll-1.1.0/Cgl/src/CglLiftAndProject/CglLiftAndProject.hpp

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00001 // Copyright (C) 2000, International Business Machines
00002 // Corporation and others.  All Rights Reserved.
00003 #ifndef CglLiftAndProject_H
00004 #define CglLiftAndProject_H
00005 
00006 #include <string>
00007 
00008 #include "CglCutGenerator.hpp"
00009 
00011 class CglLiftAndProject : public CglCutGenerator {
00012    friend void CglLiftAndProjectUnitTest(const OsiSolverInterface * siP,
00013                                         const std::string mpdDir );
00014 
00015 public:
00022   virtual void generateCuts(const OsiSolverInterface & si, OsiCuts & cs,
00023                             const CglTreeInfo info = CglTreeInfo()) const;
00024 
00028   double getBeta() const {
00029     return beta_;
00030   }
00031 
00035   void setBeta(int oneOrMinusOne){
00036     if (oneOrMinusOne==1 || oneOrMinusOne==-1){
00037       beta_= (double)oneOrMinusOne;
00038     }
00039     else {
00040       throw CoinError("Unallowable value. Beta must be 1 or -1",
00041                       "cutGeneration","CglLiftAndProject");
00042     }
00043   }
00044 
00046 
00049 
00050   CglLiftAndProject ();
00051  
00053   CglLiftAndProject (
00054     const CglLiftAndProject &);
00055 
00057   virtual CglCutGenerator * clone() const;
00058 
00060   CglLiftAndProject &
00061     operator=(
00062     const CglLiftAndProject& rhs);
00063   
00065   virtual
00066     ~CglLiftAndProject ();
00068   virtual std::string generateCpp( FILE * fp);
00070 
00071 private:
00072   
00073  // Private member methods
00074 
00077 
00079 
00080   // Private member data
00081 
00084 
00085   double beta_;  
00087   double epsilon_;  
00089   double onetol_;  
00091 };
00092 
00093 //#############################################################################
00099 void CglLiftAndProjectUnitTest(const OsiSolverInterface * siP,
00100                               const std::string mpdDir );
00101   
00102 #endif

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