realloc

[Antoine Verheijen]

In article <9122 at alice.UUCP> andrew at alice.UUCP (Andrew Hume) writes:
>
>
>gregg townsend reminds us of the pANS ``feature'' that malloc(0) returns NULL.
>can anyone provide the (or any) justification of this pointless stupid
>definition? i just love the idea that an initialised pointer is SOMETIMES
>indistinguishable from an uninitialised pointer.


Please note that a NULL pointer is not (necessarily) the same thing as an
uninitialized pointer. NULL is a very specific and legitimate value for
a pointer whereas an uninitialized pointer is, by definition, unpredictable,
its value usually being dependent on the system you're running under (unless
I've missed something new in the standard).