Sleipnir::CBinaryMatrix Class Reference

A special symmetric matrix in which each entry consumes exactly one bit. More...

#include <halfmatrix.h>

Inheritance diagram for Sleipnir::CBinaryMatrix:

Public Member Functions
bool	Get (size_t iY, size_t iX) const
	Returns the value at the requested matrix position.
void	Set (size_t iY, size_t iX, bool fValue)
	Set the value at the requested matrix position.
void	Initialize (size_t iSize, bool fClear=false, unsigned char **aabData=NULL)
	Create a new matrix of the requested size and, optionally, referencing the given data.

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Detailed Description

A special symmetric matrix in which each entry consumes exactly one bit.

Remarks:

Sort of the logical extreme of CCompactMatrix, except symmetric and much more simple to implement.

Definition at line 427 of file halfmatrix.h.

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Member Function Documentation

bool Sleipnir::CBinaryMatrix::Get	(	size_t	iY,
		size_t	iX
	)		const [inline]

Returns the value at the requested matrix position.

Parameters:

iY	Matrix row.
iX	Matrix column.

Returns:

Value at the requested matrix position.

Remarks:

For efficiency, no bounds checking is performed. The given row and column must be smaller than the size.

See also:

Set

Reimplemented from Sleipnir::CHalfMatrix< unsigned char >.

Definition at line 449 of file halfmatrix.h.

References Sleipnir::CHalfMatrix< unsigned char >::m_aaData.

Referenced by Sleipnir::CDataMask::AttachComplement(), Sleipnir::CDataMask::AttachRandom(), Sleipnir::CDatasetCompactMap::IsExample(), and Sleipnir::CDataMask::IsExample().

void Sleipnir::CBinaryMatrix::Initialize	(	size_t	iSize,
		bool	fClear = false,
		unsigned char **	aabData = NULL
	)		[inline]

Create a new matrix of the requested size and, optionally, referencing the given data.

Parameters:

iSize	Matrix elements.
fClear	If true, initialize the new matrix to contain only false values.
aabData	If non-null, the memory that will back the newly created matrix.

Remarks:

A reference is held to the given memory; it is not copied, so it should not be destroyed before the newly initialized matrix.

Definition at line 502 of file halfmatrix.h.

References Sleipnir::CHalfMatrix< unsigned char >::m_aaData, Sleipnir::CHalfMatrix< unsigned char >::m_fMemory, and Sleipnir::CHalfMatrix< unsigned char >::Reset().

Referenced by Sleipnir::CDataMask::Attach(), and Sleipnir::CDatasetCompactMap::Open().

void Sleipnir::CBinaryMatrix::Set	(	size_t	iY,
		size_t	iX,
		bool	fValue
	)		[inline]

Set the value at the requested matrix position.

Parameters:

iY	Matrix row.
iX	Matrix column.
fValue	Value to store.

Remarks:

For efficiency, no bounds checking is performed. The given row and column must be smaller than the size.

See also:

Get

Definition at line 476 of file halfmatrix.h.

References Sleipnir::CHalfMatrix< unsigned char >::m_aaData.

Referenced by Sleipnir::CDataMask::Attach(), Sleipnir::CDataMask::AttachComplement(), Sleipnir::CDataMask::AttachRandom(), Sleipnir::CDatasetCompactMap::Open(), Sleipnir::CDatasetCompactMap::Remove(), and Sleipnir::CDataMask::Remove().

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

• src/halfmatrix.h