OFCRC32 Class Reference

general-purpose 32-bit CRC algorithm. More...

List of all members.

Public Member Functions
	OFCRC32 ()
	constructor
	~OFCRC32 ()
	destructor
void	reset ()
	reset object to initial state (zero CRC)
void	addBlock (const void *ptr, unsigned long size)
	add block of raw data to CRC
unsigned int	getCRC32 () const
	returns the current CRC as unsigned int
Static Public Member Functions
static unsigned int	compute (const void *ptr, unsigned long size)
	compute CRC for given block of data using a temporary CRC object
Private Attributes
unsigned int	value
	current CRC
Static Private Attributes
static const unsigned int	crctab [256]
	CRC look-up table.

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Detailed Description

general-purpose 32-bit CRC algorithm.

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Member Function Documentation

void OFCRC32::addBlock	(	const void *	ptr,
		unsigned long	size
	)

add block of raw data to CRC

Parameters:

ptr	pointer to raw data
size	length of raw data block in bytes

static unsigned int OFCRC32::compute	(	const void *	ptr,
		unsigned long	size
	)		[static]

compute CRC for given block of data using a temporary CRC object

Parameters:

ptr	pointer to raw data
size	length of raw data block in bytes

Returns:

CRC32 as unsigned int

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

• ofstd/include/dcmtk/ofstd/ofcrc32.h