Details

Examples

Test whether an OpaqueRawPointer is a null pointer:

Wolfram Language code: NullRawPointerQ[OpaqueRawPointer[0]]

Load a pointer to a foreign function:

Wolfram Language code: funPtr = ForeignPointerLookup["compilerDemoBase", "addone"]

A valid foreign function pointer is not null:

Wolfram Language code: NullRawPointerQ[funPtr]

Test whether a RawPointer is a null pointer:

Wolfram Language code: NullRawPointerQ[RawPointer[0, "UnsignedInteger8"]]

Export a string as raw memory:

Wolfram Language code: ptr = RawMemoryExport["A string"]

The pointer to the raw memory is not null:

Wolfram Language code: NullRawPointerQ[ptr["Value"]]

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