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// $Id: CbcCutSubsetModifier.hpp 1899 2013-04-09 18:12:08Z stefan $
// Copyright (C) 2003, International Business Machines
// Corporation and others. All Rights Reserved.
// This code is licensed under the terms of the Eclipse Public License (EPL).
//Edwin 11/25/09 carved out of CbcCutGenerator
#ifndef CbcCutSubsetModifier_H
#define CbcCutSubsetModifier_H
#include "OsiSolverInterface.hpp"
#include "OsiCuts.hpp"
#include "CglCutGenerator.hpp"
#include "CbcCutModifier.hpp"
class CbcModel;
class OsiRowCut;
class OsiRowCutDebugger;
/** Simple cut modifier base class
In exotic circumstances - cuts may need to be modified
a) strengthened - changed
b) weakened - changed
c) deleted - set to NULL
d) unchanged
initially get rid of cuts with variables >= k
could weaken
*/
class CbcCutSubsetModifier : public CbcCutModifier {
public:
/// Default Constructor
CbcCutSubsetModifier ();
/// Useful Constructor
CbcCutSubsetModifier (int firstOdd);
// Copy constructor
CbcCutSubsetModifier ( const CbcCutSubsetModifier &);
/// Destructor
virtual ~CbcCutSubsetModifier();
/// Assignment
CbcCutSubsetModifier & operator=(const CbcCutSubsetModifier& rhs);
/// Clone
virtual CbcCutModifier * clone() const ;
/** Returns
0 unchanged
1 strengthened
2 weakened
3 deleted
*/
virtual int modify(const OsiSolverInterface * solver, OsiRowCut & cut) ;
/// Create C++ lines to get to current state
virtual void generateCpp( FILE * ) {}
protected:
/// data
/// First odd variable
int firstOdd_;
};
#endif //CbcCutSubsetModifier_H
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