Intel IPP status -8 (ippStsNullPtrErr): meaning and diagnosis

Status / error code:		Category:

Constant name:
Source:		Operating System:
Description: IPP received a null pointer where the primitive requires a valid object or buffer.

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ippStsMemAllocErr	ippStsRangeErr

ippStsNullPtrErr

This is a caller contract error. A required input, output, context, specification, table or size pointer was null at the API boundary.

The key diagnostic task is to find which pointer is mandatory for the exact function. Some IPP APIs allow selected optional pointers to be null, while others require every pointer parameter.

Diagnostic focus

Log the names of all pointer arguments before the wrapper calls IPP.
Check initialization paths for context/specification pointers separately from data buffers.
Do not replace this with an empty buffer unless the API explicitly supports zero-length input.

IPP error reporting

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