Path: utzoo!utgpu!news-server.csri.toronto.edu!mailrus!uflorida!haven!adm!smoke!gwyn
From: gwyn@smoke.BRL.MIL (Doug Gwyn)
Newsgroups: comp.std.c
Subject: Re: references to dereferenced null pointers
Message-ID: <12363@smoke.BRL.MIL>
Date: 16 Mar 90 23:07:03 GMT
References: <51083@microsoft.UUCP> <25EB8EE8.8462@paris.ics.uci.edu> <1990Mar12.175613.12082@utzoo.uucp> <1623@argus.UUCP> <12347@smoke.BRL.MIL> <1136@philmtl.philips.ca>
Reply-To: gwyn@brl.arpa (Doug Gwyn)
Organization: Ballistic Research Lab (BRL), APG, MD.
Lines: 7

In article <1136@philmtl.philips.ca> ray@philmtl.philips.ca (Raymond Dunn) writes:
>As an example you could define:
>#define NOPTR(type) ((type *)-1)

A conforming implementation is not required to support this.
It is much better to simply use the implementation-defined NULL
macro or simply (type*)0.