CglLiftAndProject.hpp

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// Copyright (C) 2000, International Business Machines
// Corporation and others.  All Rights Reserved.
// This code is licensed under the terms of the Eclipse Public License (EPL).

#ifndef CglLiftAndProject_H
#define CglLiftAndProject_H

#include <string>

#include "CglCutGenerator.hpp"

class CglLiftAndProject : public CglCutGenerator {
   friend void CglLiftAndProjectUnitTest(const OsiSolverInterface * siP,
                                        const std::string mpdDir );

public:
  virtual void generateCuts(const OsiSolverInterface & si, OsiCuts & cs,
                            const CglTreeInfo info = CglTreeInfo());

  double getBeta() const {
    return beta_;
  }

  void setBeta(int oneOrMinusOne){
    if (oneOrMinusOne==1 || oneOrMinusOne==-1){
      beta_= static_cast<double>(oneOrMinusOne);
    }
    else {
      throw CoinError("Unallowable value. Beta must be 1 or -1",
                      "cutGeneration","CglLiftAndProject");
    }
  }


  CglLiftAndProject ();
 
  CglLiftAndProject (
    const CglLiftAndProject &);

  virtual CglCutGenerator * clone() const;

  CglLiftAndProject &
    operator=(
    const CglLiftAndProject& rhs);
  
  virtual
    ~CglLiftAndProject ();
  virtual std::string generateCpp( FILE * fp);

private:
  
 // Private member methods



  // Private member data

  double beta_;  
  double epsilon_;  
  double onetol_;  
};

//#############################################################################
void CglLiftAndProjectUnitTest(const OsiSolverInterface * siP,
                              const std::string mpdDir );
  
#endif