void * compatibility
Karl Heuer
karl at haddock.ima.isc.com
Thu Sep 20 13:44:38 AEST 1990
In article <8770 at b11.ingr.com> polfer at b11.ingr.com (? Polfer) writes:
> int (**command)();
> *command = NULL;
> "Type `void *' is not assignment compatible with type `int (*)()'."
>isn't a "void *" supposed to be assignment compatible with ALL pointers?
No, it's compatible with all *data* pointers. Function pointers need not fit
in a `void *'.
But (as Chris Torek already pointed out), a null pointer constant is a special
case. Your compiler has a bug in that it apparently fails to recognize the
`(void *)0' form as a null pointer constant.
Karl W. Z. Heuer (karl at kelp.ima.isc.com or ima!kelp!karl), The Walking Lint
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