Newsgroups: comp.lang.c
Path: utzoo!henry
From: henry@utzoo.uucp (Henry Spencer)
Subject: Re: Abandon NULL for (0)
Message-ID: <1989Oct6.164012.5623@utzoo.uucp>
Organization: U of Toronto Zoology
References: <252B5E41.1244@marob.masa.com>
Date: Fri, 6 Oct 89 16:40:12 GMT

In article <252B5E41.1244@marob.masa.com> daveh@marob.masa.com (Dave Hammond) writes:
>#define NIL(t)	(t *)0
>
>This produces fairly readable and maintainable code, as in:
>
>if (fp == NIL(FILE))

Is there some reason why this is superior to `if (fp == (FILE *)NULL)' or
just `if (fp == NULL)'?  You don't need that cast anywhere except in an
argument to a function (in the absence of ANSI C prototypes).
-- 
Nature is blind; Man is merely |     Henry Spencer at U of Toronto Zoology
shortsighted (and improving).  | uunet!attcan!utzoo!henry henry@zoo.toronto.edu