A small nit-pick...

A small nit-pick...

Posted Mar 19, 2008 22:52 UTC (Wed) by vmole (guest, #111)
In reply to: A small nit-pick... by dw
Parent article: Who maintains dpkg?

Oops, you're correct about that. I just looked in Plauger and Brodie's "Standard C" (which is not the standard, but I think we can trust them), and they agree: it's *object* pointers that can be intraconverted with void pointers.

But the hilarious thing is this:

The types _pointer_to_char_, _pointer_to_signed_char_, _pointer_to_unsigned_char_, and _pointer_to_void_ all share the same representation.

So "(void *) 0" is interchangeable with "(char *) 0", but not "0" or "(int *) 0".

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This is surely related to the aliasing rules, which also have a similar 
special hole allowing aliasing of of void * and char *, but not of 
pointers of any other distinct types.