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From: guy@rlgvax.UUCP
Newsgroups: net.bugs.4bsd
Subject: Re: NULL pointer
Message-ID: <1590@rlgvax.UUCP>
Date: Fri, 20-Jan-84 17:52:06 EST
Article-I.D.: rlgvax.1590
Posted: Fri Jan 20 17:52:06 1984
Date-Received: Sat, 21-Jan-84 07:37:49 EST
References: <55@datagen.UUCP>
Organization: CCI Office Systems Group, Reston, VA
Lines: 7

Several flavors of UNIX - including Sun's 4.2BSD - also disallow dereferencing
null pointers.  Nothing in UNIX says 0 must point to something real, so
people shouldn't write programs that assume you can dereference zero, much
less get something meaningful by doing so.  Period.

	Guy Harris
	{seismo,ihnp4,allegra}!rlgvax!guy