CouenneThreeWayBranchObj.hpp

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/* $Id: CouenneThreeWayBranchObj.hpp 560 2011-04-17 10:01:15Z stefan $
 *
 * Name:    CouenneThreeWayBranchObj.hpp
 * Authors: Pierre Bonami, IBM Corp.
 *          Pietro Belotti, Carnegie Mellon University
 * Purpose: Three way branching object for auxiliary variables
 *
 * (C) Carnegie-Mellon University, 2006-10.
 * This file is licensed under the Eclipse Public License (EPL)
 */

#ifndef COUENNETHREEWAYBRANCHOBJ_HPP
#define COUENNETHREEWAYBRANCHOBJ_HPP

#include "OsiBranchingObject.hpp"

#include "CouenneExprAux.hpp"
#include "CouenneObject.hpp"

namespace Couenne {


class CouenneThreeWayBranchObj: public OsiBranchingObject {

public:

  CouenneThreeWayBranchObj (JnlstPtr jnlst,
                            expression *, 
                            CouNumber,
                            CouNumber, 
                            int  = THREE_CENTER
                            //bool = false
                            );

  CouenneThreeWayBranchObj (const CouenneThreeWayBranchObj &src):
    OsiBranchingObject (src),
    brVar_ (src.brVar_),
    lcrop_ (src.lcrop_),
    rcrop_ (src.rcrop_),
    firstBranch_ (src.firstBranch_),
    jnlst_ (src.jnlst_){}

  virtual OsiBranchingObject * clone () const
  {return new CouenneThreeWayBranchObj (*this);}

  virtual double branch (OsiSolverInterface * solver = NULL);

protected:

  expression *brVar_;

  CouNumber lcrop_;  
  CouNumber rcrop_;  

  int firstBranch_;

  //  bool integer_;

  JnlstPtr jnlst_;
};

}

#endif