Clp/Doxygen/ClpNetworkBasis_8hpp_source.html

/* $Id$ */

// 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).

/*

   Authors


   John Forrest


 */

#ifndef ClpNetworkBasis_H

#define ClpNetworkBasis_H


class ClpMatrixBase;

class CoinIndexedVector;

class ClpSimplex;

#include "CoinTypes.hpp"

#ifndef COIN_FAST_CODE

#define COIN_FAST_CODE

#endif


class ClpNetworkBasis {


public:

  ClpNetworkBasis();

  ClpNetworkBasis(const ClpSimplex *model,

    int numberRows, const CoinFactorizationDouble *pivotRegion,

    const int *permuteBack, const int *startColumn,

    const int *numberInColumn,

    const int *indexRow, const CoinFactorizationDouble *element);

  ClpNetworkBasis(const ClpNetworkBasis &other);


  ~ClpNetworkBasis();

  ClpNetworkBasis &operator=(const ClpNetworkBasis &other);


  int factorize(const ClpMatrixBase *matrix,

    int rowIsBasic[], int columnIsBasic[]);


  int replaceColumn(CoinIndexedVector *column,

    int pivotRow);


  double updateColumn(CoinIndexedVector *regionSparse,

    CoinIndexedVector *regionSparse2,

    int pivotRow);

  int updateColumn(CoinIndexedVector *regionSparse,

    double array[]) const;

  int updateColumnTranspose(CoinIndexedVector *regionSparse,

    double array[]) const;

  int updateColumnTranspose(CoinIndexedVector *regionSparse,

    CoinIndexedVector *regionSparse2) const;

private:

  // checks looks okay

  void check();

  // prints data

  void print();

#ifndef COIN_FAST_CODE

  double slackValue_;

#endif

  int numberRows_;

  int numberColumns_;

  const ClpSimplex *model_;

  int *parent_;

  int *descendant_;

  int *pivot_;

  int *rightSibling_;

  int *leftSibling_;

  double *sign_;

  int *stack_;

  int *permute_;

  int *permuteBack_;

  int *stack2_;

  int *depth_;

  char *mark_;

};

#endif


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