Clp  1.16.11
ClpDummyMatrix.hpp
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1 /* $Id: ClpDummyMatrix.hpp 1665 2011-01-04 17:55:54Z lou $ */
2 // Copyright (C) 2003, International Business Machines
3 // Corporation and others. All Rights Reserved.
4 // This code is licensed under the terms of the Eclipse Public License (EPL).
5 
6 #ifndef ClpDummyMatrix_H
7 #define ClpDummyMatrix_H
8 
9 
10 #include "CoinPragma.hpp"
11 
12 #include "ClpMatrixBase.hpp"
13 
20 class ClpDummyMatrix : public ClpMatrixBase {
21 
22 public:
25  virtual CoinPackedMatrix * getPackedMatrix() const;
28  virtual bool isColOrdered() const {
29  return true;
30  }
32  virtual CoinBigIndex getNumElements() const {
33  return numberElements_;
34  }
36  virtual int getNumCols() const {
37  return numberColumns_;
38  }
40  virtual int getNumRows() const {
41  return numberRows_;
42  }
43 
48  virtual const double * getElements() const;
54  virtual const int * getIndices() const;
55 
56  virtual const CoinBigIndex * getVectorStarts() const;
58  virtual const int * getVectorLengths() const;
59 
61  virtual void deleteCols(const int numDel, const int * indDel);
63  virtual void deleteRows(const int numDel, const int * indDel);
65  virtual ClpMatrixBase * reverseOrderedCopy() const;
67  virtual CoinBigIndex countBasis(const int * whichColumn,
68  int & numberColumnBasic);
70  virtual void fillBasis(ClpSimplex * model,
71  const int * whichColumn,
72  int & numberColumnBasic,
73  int * row, int * start,
74  int * rowCount, int * columnCount,
75  CoinFactorizationDouble * element);
78  virtual void unpack(const ClpSimplex * model, CoinIndexedVector * rowArray,
79  int column) const ;
84  virtual void unpackPacked(ClpSimplex * model,
85  CoinIndexedVector * rowArray,
86  int column) const;
89  virtual void add(const ClpSimplex * model, CoinIndexedVector * rowArray,
90  int column, double multiplier) const ;
92  virtual void add(const ClpSimplex * model, double * array,
93  int column, double multiplier) const;
96  virtual void releasePackedMatrix() const {}
98 
104  virtual void times(double scalar,
105  const double * x, double * y) const;
107  virtual void times(double scalar,
108  const double * x, double * y,
109  const double * rowScale,
110  const double * columnScale) const;
114  virtual void transposeTimes(double scalar,
115  const double * x, double * y) const;
117  virtual void transposeTimes(double scalar,
118  const double * x, double * y,
119  const double * rowScale,
120  const double * columnScale) const;
121 
126  virtual void transposeTimes(const ClpSimplex * model, double scalar,
127  const CoinIndexedVector * x,
128  CoinIndexedVector * y,
129  CoinIndexedVector * z) const;
134  virtual void subsetTransposeTimes(const ClpSimplex * model,
135  const CoinIndexedVector * x,
136  const CoinIndexedVector * y,
137  CoinIndexedVector * z) const;
139 
142 
143 
144 
150  ClpDummyMatrix(int numberColumns, int numberRows,
151  int numberElements);
153  virtual ~ClpDummyMatrix();
155 
161  ClpDummyMatrix(const CoinPackedMatrix&);
162 
165  virtual ClpMatrixBase * clone() const ;
167 
168 
169 protected:
173  int numberRows_;
179 
181 };
182 
183 #endif
ClpSimplex
This solves LPs using the simplex method.
Definition: ClpSimplex.hpp:70
ClpDummyMatrix::operator=
ClpDummyMatrix & operator=(const ClpDummyMatrix &)
ClpDummyMatrix::times
virtual void times(double scalar, const double *x, double *y) const
Return y + A * scalar *x in y.
ClpDummyMatrix::deleteCols
virtual void deleteCols(const int numDel, const int *indDel)
Delete the columns whose indices are listed in indDel.
ClpDummyMatrix::ClpDummyMatrix
ClpDummyMatrix(const ClpDummyMatrix &)
The copy constructor.
ClpDummyMatrix::times
virtual void times(double scalar, const double *x, double *y, const double *rowScale, const double *columnScale) const
And for scaling.
ClpDummyMatrix::numberElements_
int numberElements_
Number of elements.
Definition: ClpDummyMatrix.hpp:178
ClpDummyMatrix::transposeTimes
virtual void transposeTimes(double scalar, const double *x, double *y) const
Return y + x * scalar * A in y.
ClpDummyMatrix::getIndices
virtual const int * getIndices() const
A vector containing the minor indices of the elements in the packed matrix.
ClpDummyMatrix::unpackPacked
virtual void unpackPacked(ClpSimplex *model, CoinIndexedVector *rowArray, int column) const
Unpacks a column into an CoinIndexedvector in packed foramt Note that model is NOT const.
ClpDummyMatrix::isColOrdered
virtual bool isColOrdered() const
Whether the packed matrix is column major ordered or not.
Definition: ClpDummyMatrix.hpp:28
ClpDummyMatrix::getNumRows
virtual int getNumRows() const
Number of rows.
Definition: ClpDummyMatrix.hpp:40
ClpMatrixBase.hpp
ClpDummyMatrix::deleteRows
virtual void deleteRows(const int numDel, const int *indDel)
Delete the rows whose indices are listed in indDel.
ClpDummyMatrix::transposeTimes
virtual void transposeTimes(const ClpSimplex *model, double scalar, const CoinIndexedVector *x, CoinIndexedVector *y, CoinIndexedVector *z) const
Return x * scalar * A + y in z.
ClpDummyMatrix::countBasis
virtual CoinBigIndex countBasis(const int *whichColumn, int &numberColumnBasic)
Returns number of elements in column part of basis.
ClpDummyMatrix::releasePackedMatrix
virtual void releasePackedMatrix() const
Allow any parts of a created CoinMatrix to be deleted Allow any parts of a created CoinPackedMatrix t...
Definition: ClpDummyMatrix.hpp:96
ClpDummyMatrix::getNumCols
virtual int getNumCols() const
Number of columns.
Definition: ClpDummyMatrix.hpp:36
ClpDummyMatrix::ClpDummyMatrix
ClpDummyMatrix(int numberColumns, int numberRows, int numberElements)
Constructor with data.
ClpDummyMatrix::clone
virtual ClpMatrixBase * clone() const
Clone.
ClpDummyMatrix::getVectorStarts
virtual const CoinBigIndex * getVectorStarts() const
ClpDummyMatrix::reverseOrderedCopy
virtual ClpMatrixBase * reverseOrderedCopy() const
Returns a new matrix in reverse order without gaps.
ClpMatrixBase
Abstract base class for Clp Matrices.
Definition: ClpMatrixBase.hpp:38
ClpDummyMatrix::subsetTransposeTimes
virtual void subsetTransposeTimes(const ClpSimplex *model, const CoinIndexedVector *x, const CoinIndexedVector *y, CoinIndexedVector *z) const
Return x *A in z but just for indices in y.
ClpMatrixBase::transposeTimes
virtual void transposeTimes(double scalar, const double *COIN_RESTRICT x, double *COIN_RESTRICT y) const =0
Return y + x * scalar * A in y.
ClpDummyMatrix::getVectorLengths
virtual const int * getVectorLengths() const
The lengths of the major-dimension vectors.
ClpDummyMatrix::add
virtual void add(const ClpSimplex *model, CoinIndexedVector *rowArray, int column, double multiplier) const
Adds multiple of a column into an CoinIndexedvector You can use quickAdd to add to vector.
ClpDummyMatrix::unpack
virtual void unpack(const ClpSimplex *model, CoinIndexedVector *rowArray, int column) const
Unpacks a column into an CoinIndexedvector.
ClpDummyMatrix::add
virtual void add(const ClpSimplex *model, double *array, int column, double multiplier) const
Adds multiple of a column into an array.
ClpDummyMatrix::getPackedMatrix
virtual CoinPackedMatrix * getPackedMatrix() const
Return a complete CoinPackedMatrix.
ClpDummyMatrix::numberColumns_
int numberColumns_
Number of columns.
Definition: ClpDummyMatrix.hpp:176
ClpDummyMatrix::numberRows_
int numberRows_
Number of rows.
Definition: ClpDummyMatrix.hpp:174
ClpDummyMatrix::fillBasis
virtual void fillBasis(ClpSimplex *model, const int *whichColumn, int &numberColumnBasic, int *row, int *start, int *rowCount, int *columnCount, CoinFactorizationDouble *element)
Fills in column part of basis.
ClpDummyMatrix::~ClpDummyMatrix
virtual ~ClpDummyMatrix()
Destructor.
ClpDummyMatrix::transposeTimes
virtual void transposeTimes(double scalar, const double *x, double *y, const double *rowScale, const double *columnScale) const
And for scaling.
ClpDummyMatrix::getElements
virtual const double * getElements() const
A vector containing the elements in the packed matrix.
ClpDummyMatrix
This implements a dummy matrix as derived from ClpMatrixBase.
Definition: ClpDummyMatrix.hpp:20
ClpDummyMatrix::ClpDummyMatrix
ClpDummyMatrix()
Default constructor.
ClpDummyMatrix::getNumElements
virtual CoinBigIndex getNumElements() const
Number of entries in the packed matrix.
Definition: ClpDummyMatrix.hpp:32
ClpDummyMatrix::ClpDummyMatrix
ClpDummyMatrix(const CoinPackedMatrix &)
The copy constructor from an CoinDummyMatrix.