Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP Path: utzoo!mnetor!uunet!seismo!husc6!cmcl2!brl-adm!brl-smoke!gwyn From: gwyn@brl-smoke.ARPA (Doug Gwyn ) Newsgroups: comp.lang.c Subject: Re: NULL, zero, and readable code Message-ID: <6107@brl-smoke.ARPA> Date: Sun, 12-Jul-87 16:21:03 EDT Article-I.D.: brl-smok.6107 Posted: Sun Jul 12 16:21:03 1987 Date-Received: Mon, 13-Jul-87 04:50:10 EDT References: <8170@brl-adm.ARPA> <44200004@uicsrd> Reply-To: gwyn@brl.arpa (Doug Gwyn (VLD/VMB)) Organization: Ballistic Research Lab (BRL), APG, MD. Lines: 6 In article <44200004@uicsrd> schouten@uicsrd.cs.uiuc.edu writes: >I have worked on systems where NULL was != 0, because 0 was a valid address. I thought we were discussing C. No C data object is permitted to have an address such that a pointer to it is indistinguishable from 0 cast to the appropriate pointer type.