On Sun, Mar 09, 2008 at 06:34:48PM +0100, Pierre Habouzit wrote: > Here is the relevant C99 quote: > > > § 7.17 Common definitions <stddef.h> > [...] > 3 The macros are > NULL > which expands to an implementation-defined null pointer constant; and > > > 0 is not a pointer, hence disqualifies.
Just to confirm Kurt's point, 0 is a "null pointer constant" in C. But it is not necessarily a pointer. You can't terminate a varargs list of pointers (e.g. execl) with NULL unless you cast it. -- Daniel Jacobowitz CodeSourcery -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED]
