CbcSubProblem.hpp

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// $Id: CbcSubProblem.hpp 2465 2019-01-03 19:26:52Z unxusr $
// Copyright (C) 2002, International Business Machines
// Corporation and others.  All Rights Reserved.
// This code is licensed under the terms of the Eclipse Public License (EPL).

// Edwin 11/10/2009-- carved out of CbcBranchActual

#ifndef CbcSubProblem_H
#define CbcSubProblem_H

#ifdef COIN_HAS_CLP
#include "ClpSimplex.hpp"
#include "ClpNode.hpp"

class CoinWarmStartDiff;
class CbcSubProblem {

public:
  CbcSubProblem();

  CbcSubProblem(const OsiSolverInterface *solver,
    const double *lowerBefore,
    const double *upperBefore,
    const unsigned char *status,
    int depth);

  CbcSubProblem(const CbcSubProblem &);

  CbcSubProblem &operator=(const CbcSubProblem &rhs);

  virtual ~CbcSubProblem();

  void takeOver(CbcSubProblem &, bool cleanup);
  void apply(OsiSolverInterface *model, int what = 3) const;

public:
  double objectiveValue_;
  double sumInfeasibilities_;
  double branchValue_;
  double djValue_;
  int *variables_;
  double *newBounds_;
  mutable CoinWarmStartBasis *status_;
  int depth_;
  int numberChangedBounds_;
  int numberInfeasibilities_;
  int problemStatus_;
  int branchVariable_;
};

#endif //COIN_HAS_CLP
#endif

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