CRC32 Class Reference

Computes the CRC32 data checksum of a data stream. More...

#include <CRC32.h>

Public Member Functions
	CRC32 ()
long	value ()
void	update (QByteArray buf)
void	update (QByteArray buf, int off, int len)

Private Member Functions
void	make_crc_table ()

Private Attributes
int	m_crc
int *	m_crc_table

Detailed Description

Computes the CRC32 data checksum of a data stream.

Can be used to get the CRC32 over a stream if used with checked input/output streams.

Constructor & Destructor Documentation

CRC32::CRC32 ( )

explicit

Generates the CRC table during initialization

References make_crc_table().

Member Function Documentation

void CRC32::make_crc_table ( )

private

Generates a table for fast CRC

Referenced by CRC32().

void CRC32::update

(

QByteArray

buf

)

Overloaded function. Adds the byte array to the data checksum.

Parameters

buf	the data buffer

Referenced by FRC_2014::getRobotPacket().

void CRC32::update	(	QByteArray	buf,
		int	off,
		int	len
	)

Adds the byte array to the data checksum.

Parameters

buf	the data buffer
off	the offset in the buffer where the data starts
len	the length of the data

long CRC32::value

(

)

Returns the CRC32 data checksum computed so far.

Referenced by FRC_2014::getRobotPacket().

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

• CRC32.h
• CRC32.cpp