Dense matrix representation for BLAS based elimination. More...

#include <blas-blackbox.h>

Inheritance diagram for BlasBlackbox< _Field >:

Public Types
typedef Field::Element	Element
	Element type.
typedef BlasBlackbox< _Field >	Self_t
	Self type.
typedef'd Row Iterators.
The row iterator gives the rows of the matrix in ascending order. Dereferencing the iterator yields a row vector in dense format
typedef DenseMatrixBase < Element >::RowIterator	RowIterator
typedef DenseMatrixBase < Element >::ConstRowIterator	ConstRowIterator
typedef DenseMatrixBase < Element >::Row	Row
typedef DenseMatrixBase < Element >::ConstRow	ConstRow
typedef'd Column Iterators.
The columns iterator gives the columns of the matrix in ascending order. Dereferencing the iterator yields a column vector in dense format
typedef DenseMatrixBase < Element >::ColIterator	ColIterator
typedef DenseMatrixBase < Element >::ConstColIterator	ConstColIterator
typedef DenseMatrixBase < Element >::Col	Col
typedef DenseMatrixBase < Element >::Column	Column
typedef DenseMatrixBase < Element >::ConstCol	ConstCol
Public Member Functions
size_t	rowdim () const
	Get the number of rows in the matrix.
size_t	coldim () const
	Get the number of columns in the matrix.
std::istream &	read (std::istream &file)
	Read the blackbox from an input stream.
std::ostream &	write (std::ostream &os) const
	Write the blackbox to an output stream.
pointer	getPointer () const

pointer &	getWritePointer ()

size_t	getStride () const

size_t &	getWriteStride ()

std::istream &	read (std::istream &file, const Field &field)
	Read the matrix from an input stream.
std::ostream &	write (std::ostream &os, const Field &field, bool mapleFormat=false) const
	Write the matrix to an output stream.
std::ostream &	write (std::ostream &os, bool mapleFormat=false) const
	Write the matrix to an output stream.
void	setEntry (size_t i, size_t j, const Element &a_ij)
	Set the entry at (i, j).
Element &	refEntry (size_t i, size_t j)
	Get a writeable reference to an entry in the matrix.
const Element &	getEntry (size_t i, size_t j) const
	Get a read-only individual entry from the matrix.
Element &	getEntry (Element &x, size_t i, size_t j) const
	Get an entry and store it in the given value.
RowIterator	rowBegin ()
	iterator to the begining of a row
ConstRowIterator	rowBegin () const
	const iterator to the begining of a row
RowIterator	rowEnd ()
	iterator to the end of a row
ConstRowIterator	rowEnd () const
	const iterator to the end of a row
DenseSubmatrix< Element >	transpose (DenseMatrixBase< Element > &tM)
	Creates a transposed matrix of `*this`.
DenseSubmatrix< Element > &	transpose (DenseSubmatrix< Element > &tA)
	Creates a transposed matrix of `*this`.

Detailed Description

template<class _Field>
class LinBox::BlasBlackbox< _Field >

Dense matrix representation for BLAS based elimination.

A BlasBlackbox can be constructed from any blackbox matrix. This costs n blackbox matrix vector products in general, but is efficiently done from a DenseMatrix or SparseMatrix.

Examples:: examples/checksolve.C, examples/det.C, and examples/doubledet.C.

Member Function Documentation

size_t rowdim ( ) const [inline]

Get the number of rows in the matrix.

Returns:: Number of rows in matrix

Reimplemented from DenseSubmatrix< _Field::Element >.

size_t coldim ( ) const [inline]

Get the number of columns in the matrix.

Returns:: Number of columns in matrix

Reimplemented from DenseSubmatrix< _Field::Element >.

std::istream& read ( std::istream & file ) [inline]

Read the blackbox from an input stream.

Parameters:

file	Input stream from which to read

std::ostream& write ( std::ostream & os ) const [inline]

Write the blackbox to an output stream.

Parameters:

os	Output stream to which to write

std::istream& read	(	std::istream &	file,
		const Field &	field
	)		`[inherited]`

Read the matrix from an input stream.

Parameters:

file	Input stream from which to read
field

std::ostream& write	(	std::ostream &	os,
		const Field &	field,
		bool	mapleFormat = `false`
	)		const `[inherited]`

Write the matrix to an output stream.

Parameters:

os	Output stream to which to write
field
mapleFormat	write in Maple(r) format ?

std::ostream& write	(	std::ostream &	os,
		bool	mapleFormat = `false`
	)		const `[inherited]`

Write the matrix to an output stream.

This a raw version of write(os,F) (no field is given).

Parameters:

os	Output stream to which to write
mapleFormat	write in Maple(r) format ?

void setEntry	(	size_t	i,
		size_t	j,
		const Element &	a_ij
	)		`[inline, inherited]`

Set the entry at (i, j).

Parameters:

i	Row number, 0...rowdim () - 1
j	Column number 0...coldim () - 1
a_ij	Element to set

Element& refEntry	(	size_t	i,
		size_t	j
	)		`[inline, inherited]`

Get a writeable reference to an entry in the matrix.

Parameters:

i	Row index of entry
j	Column index of entry

Returns:: Reference to matrix entry

const Element& getEntry	(	size_t	i,
		size_t	j
	)		const `[inline, inherited]`

Get a read-only individual entry from the matrix.

Parameters:

i	Row index
j	Column index

Returns:: Const reference to matrix entry

Element& getEntry	(	Element &	x,
		size_t	i,
		size_t	j
	)		const `[inline, inherited]`

Get an entry and store it in the given value.

This form is more in the Linbox style and is provided for interface compatibility with other parts of the library

Parameters:

x	Element in which to store result
i	Row index
j	Column index

Returns:: Reference to x

DenseSubmatrix<Element> transpose ( DenseMatrixBase< Element > & tM ) [inline, inherited]

Creates a transposed matrix of *this.

Parameters:

[in] tM

Returns:: the transposed matrix of this.

DenseSubmatrix<Element>& transpose ( DenseSubmatrix< Element > & tA ) [inline, inherited]

Creates a transposed matrix of *this.

Returns:: the transposed matrix of this.

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

blas-blackbox.h

Public Types

Public Member Functions

Detailed Description

template<class _Field> class LinBox::BlasBlackbox< _Field >

Member Function Documentation

template<class _Field>
class LinBox::BlasBlackbox< _Field >