ClpDummyMatrix.hpp

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/* $Id: ClpDummyMatrix.hpp 2385 2019-01-06 19:43:06Z unxusr $ */
// 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).

#ifndef ClpDummyMatrix_H
#define ClpDummyMatrix_H

#include "CoinPragma.hpp"

#include "ClpMatrixBase.hpp"

class ClpDummyMatrix : public ClpMatrixBase {

public:
  virtual CoinPackedMatrix *getPackedMatrix() const;
  virtual bool isColOrdered() const
  {
    return true;
  }
  virtual CoinBigIndex getNumElements() const
  {
    return numberElements_;
  }
  virtual int getNumCols() const
  {
    return numberColumns_;
  }
  virtual int getNumRows() const
  {
    return numberRows_;
  }

  virtual const double *getElements() const;
  virtual const int *getIndices() const;

  virtual const CoinBigIndex *getVectorStarts() const;
  virtual const int *getVectorLengths() const;

  virtual void deleteCols(const int numDel, const int *indDel);
  virtual void deleteRows(const int numDel, const int *indDel);
  virtual ClpMatrixBase *reverseOrderedCopy() const;
  virtual int countBasis(const int *whichColumn,
    int &numberColumnBasic);
  virtual void fillBasis(ClpSimplex *model,
    const int *whichColumn,
    int &numberColumnBasic,
    int *row, int *start,
    int *rowCount, int *columnCount,
    CoinFactorizationDouble *element);
  virtual void unpack(const ClpSimplex *model, CoinIndexedVector *rowArray,
    int column) const;
  virtual void unpackPacked(ClpSimplex *model,
    CoinIndexedVector *rowArray,
    int column) const;
  virtual void add(const ClpSimplex *model, CoinIndexedVector *rowArray,
    int column, double multiplier) const;
  virtual void add(const ClpSimplex *model, double *array,
    int column, double multiplier) const;
  virtual void releasePackedMatrix() const {}

  virtual void times(double scalar,
    const double *x, double *y) const;
  virtual void times(double scalar,
    const double *x, double *y,
    const double *rowScale,
    const double *columnScale) const;
  virtual void transposeTimes(double scalar,
    const double *x, double *y) const;
  virtual void transposeTimes(double scalar,
    const double *x, double *y,
    const double *rowScale,
    const double *columnScale) const;

  using ClpMatrixBase::transposeTimes;
  virtual void transposeTimes(const ClpSimplex *model, double scalar,
    const CoinIndexedVector *x,
    CoinIndexedVector *y,
    CoinIndexedVector *z) const;
  virtual void subsetTransposeTimes(const ClpSimplex *model,
    const CoinIndexedVector *x,
    const CoinIndexedVector *y,
    CoinIndexedVector *z) const;



  ClpDummyMatrix();
  ClpDummyMatrix(int numberColumns, int numberRows,
    int numberElements);
  virtual ~ClpDummyMatrix();

  ClpDummyMatrix(const ClpDummyMatrix &);
  ClpDummyMatrix(const CoinPackedMatrix &);

  ClpDummyMatrix &operator=(const ClpDummyMatrix &);
  virtual ClpMatrixBase *clone() const;

protected:
  int numberRows_;
  int numberColumns_;
  int numberElements_;

};

#endif

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