operations_research::glop::MatrixView Class Reference

Detailed Description

A matrix constructed from a list of already existing SparseColumn. This class does not take ownership of the underlying columns, and thus they must outlive this class (and keep the same address in memory).

Definition at line 229 of file sparse.h.

#include <sparse.h>

Public Member Functions
	MatrixView ()=default
	MatrixView (const SparseMatrix &matrix)
void	PopulateFromMatrix (const SparseMatrix &matrix)
	Takes all the columns of the given matrix.
void	PopulateFromMatrixPair (const SparseMatrix &matrix_a, const SparseMatrix &matrix_b)
void	PopulateFromBasis (const MatrixView &matrix, const RowToColMapping &basis)
	Takes only the columns of the given matrix that belongs to the given basis.
bool	IsEmpty () const
	Same behavior as the SparseMatrix functions above.
RowIndex	num_rows () const
ColIndex	num_cols () const
const SparseColumn &	column (ColIndex col) const
EntryIndex	num_entries () const
Fractional	ComputeOneNorm () const
Fractional	ComputeInfinityNorm () const

Constructor & Destructor Documentation

MatrixView() [1/2]

operations_research::glop::MatrixView::MatrixView ( )

default

MatrixView() [2/2]

operations_research::glop::MatrixView::MatrixView ( const SparseMatrix & matrix )

inlineexplicit

Definition at line 232 of file sparse.h.

Member Function Documentation

column()

const SparseColumn & operations_research::glop::MatrixView::column ( ColIndex col ) const

inline

Definition at line 275 of file sparse.h.

ComputeInfinityNorm()

Fractional operations_research::glop::MatrixView::ComputeInfinityNorm

(

)

const

Definition at line 433 of file sparse.cc.

ComputeOneNorm()

Fractional operations_research::glop::MatrixView::ComputeOneNorm

(

)

const

Definition at line 430 of file sparse.cc.

IsEmpty()

bool operations_research::glop::MatrixView::IsEmpty ( ) const

inline

Same behavior as the SparseMatrix functions above.

Definition at line 272 of file sparse.h.

num_cols()

ColIndex operations_research::glop::MatrixView::num_cols ( ) const

inline

Definition at line 274 of file sparse.h.

num_entries()

EntryIndex operations_research::glop::MatrixView::num_entries

(

)

const

Definition at line 429 of file sparse.cc.

num_rows()

RowIndex operations_research::glop::MatrixView::num_rows ( ) const

inline

Definition at line 273 of file sparse.h.

PopulateFromBasis()

void operations_research::glop::MatrixView::PopulateFromBasis ( const MatrixView & matrix, const RowToColMapping & basis )

inline

Takes only the columns of the given matrix that belongs to the given basis.

Definition at line 262 of file sparse.h.

PopulateFromMatrix()

void operations_research::glop::MatrixView::PopulateFromMatrix ( const SparseMatrix & matrix )

inline

Takes all the columns of the given matrix.

Definition at line 237 of file sparse.h.

PopulateFromMatrixPair()

void operations_research::glop::MatrixView::PopulateFromMatrixPair ( const SparseMatrix & matrix_a, const SparseMatrix & matrix_b )

inline

Takes all the columns of the first matrix followed by the columns of the second matrix.

Definition at line 248 of file sparse.h.

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The documentation for this class was generated from the following files:

• ortools/lp_data/sparse.h
• ortools/lp_data/sparse.cc