Sack Library Documentation
sack::PTRSZVAL Type
typedef _32 PTRSZVAL;

This is an unsigned integer type that has the same length as a pointer, so that simple byte offset calculations can be performed against an integer. non-standard compiler extensions allow void* to be added with an index and increase in bytes, but void itself is of 0 size, so anything times 0 should be 0, and no offset should apply. So translation of pointers to integer types allows greater flexibility without relying on compiler features which may not exist.

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