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Do you have an example of a situation in which you'd want to cast the result of arithmetic intptr_t values to a pointer? The situations I can think of off the t
by magnostherobot 5y ago
Do you have an example of a situation in which you'd want to cast the result of arithmetic intptr_t values to a pointer? The situations I can think of off the top of my head would be better done as arithmetic between pointers.
- bonzini 5y agoArithmetic on pointers in turn is only defined if the pointers point within the same object (or right past the end of that object). One example of using intptr_t would be going from a pointer passed to free() to a metadata block for the memory that must be freed.