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// Copyright (C) 2002, International Business Machines
// Corporation and others.  All Rights Reserved.

/* 
   Authors
   
   John Forrest

 */
#ifndef ClpSimplexPrimal_H
#define ClpSimplexPrimal_H

#include "ClpSimplex.hpp"

class ClpSimplexPrimal : public ClpSimplex {

public:

  int primal(int ifValuesPass=0, int startFinishOptions=0);


  void alwaysOptimal(bool onOff);
  bool alwaysOptimal() const;
  void exactOutgoing(bool onOff);
  bool exactOutgoing() const;

  int whileIterating(int valuesOption); 

  int pivotResult(int ifValuesPass=0);


  int updatePrimalsInPrimal(CoinIndexedVector * rowArray,
                  double theta,
                  double & objectiveChange,
                            int valuesPass);
  void primalRow(CoinIndexedVector * rowArray,
                 CoinIndexedVector * rhsArray,
                 CoinIndexedVector * spareArray,
                 CoinIndexedVector * spareArray2,
                 int valuesPass);
  void primalColumn(CoinIndexedVector * updateArray,
                    CoinIndexedVector * spareRow1,
                    CoinIndexedVector * spareRow2,
                    CoinIndexedVector * spareColumn1,
                    CoinIndexedVector * spareColumn2);

  int checkUnbounded(CoinIndexedVector * ray,CoinIndexedVector * spare,
                     double changeCost);
  void statusOfProblemInPrimal(int & lastCleaned, int type,
                             ClpSimplexProgress * progress,
                               bool doFactorization,
                               int ifValuesPass,
                               ClpSimplex * saveModel=NULL);
  void perturb(int type);
  bool unPerturb();
  int unflag();
  int nextSuperBasic(int superBasicType,CoinIndexedVector * columnArray);

  void primalRay(CoinIndexedVector * rowArray);
  void clearAll();
  
};
#endif

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