Adler32
Adler32
Computes the Adler32 checksum for the source data buffer.
Syntax
IppStatus ippsAdler32_8u (const Ipp8u*
pSrc
, int
srcLen
, Ipp32u*
pAdler32
);
Include Files
ippdc.h
Domain Dependencies
Headers:
ippcore.h
,
ippvm.h
,
ipps.h
Libraries:
ippcore.lib
,
ippvm.lib
,
ipps.lib
Parameters
- pSrc
- Pointer to the source data buffer.
- srcLen
- Number of elements in the source data buffer.
- pAdler32
- Pointer to the checksum value.
Description
You need to call the
Adler32
function twice: once with a NULL/zero length buffer to prime the checksum to 1, then call it again to compute the checksum on the buffer.You can use this function to compute the accumulated value of the checksum for multiple buffers in the data stream by specifying as an input parameter the checksum value obtained in the preceding function call.
Return Values
- ippStsNoErr
- Indicates no error.
- ippStsNullPtrErr
- Indicates an error if thepSrcpointer isNULL.
- ippStsSizeErr
- Indicates an error ifsrcLenis less than or equal to 0.