OFFIS DCMTK  Version 3.6.0
Public Member Functions | Static Public Member Functions | Private Attributes | Static Private Attributes | List of all members
OFCRC32 Class Reference

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

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 37 of file ofcrc32.h.

Member Function Documentation

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

add block of raw data to CRC

Parameters
ptrpointer to raw data
sizelength 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
ptrpointer to raw data
sizelength 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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