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.

Detailed Description

general-purpose 32-bit CRC algorithm.

Definition at line 41 of file ofcrc32.h.

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

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

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