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Path: utzoo!utgpu!water!watmath!clyde!cbatt!cwruecmp!hal!ncoast!allbery
From: allbery@ncoast.UUCP
Newsgroups: news.software.b,comp.lang.c
Subject: Re: News for Xenix on PC AT ?
Message-ID: <2446@ncoast.UUCP>
Date: Thu, 30-Apr-87 19:41:45 EDT
Article-I.D.: ncoast.2446
Posted: Thu Apr 30 19:41:45 1987
Date-Received: Sat, 2-May-87 14:17:07 EDT
References: <18346@ucbvax.BERKELEY.EDU> <145@sds.UUCP> <17005@sun.uucp> <146@sds.UUCP> <2440@ulysses.homer.nj.att.com> <442@prairie.UUCP>
Reply-To: allbery@ncoast.UUCP (Brandon Allbery)
Followup-To: news.software.b
Organization: Cleveland Public Access UN*X, Cleveland, Oh
Lines: 29
Xref: utgpu news.software.b:552 comp.lang.c:1929

As quoted from <442@prairie.UUCP> by dan@prairie.UUCP (Daniel M. Frank):
+---------------
| In article <2440@ulysses.homer.nj.att.com> jss@hector (Jerry Schwarz) writes:
| >K&R: A pointer may be compared to an integer, but the result is
| >machine dependent unless the integer is the constant 0.  A pointer to
| >which 0 has been assigned is guaranteed not to point to any object
| >and will appear to be equal to 0 ...
| 
|    Oh.  The VAX compiler and linker appear to arrange that (char *)0
| ALWAYS points to a null string.  Other systems do the same (I believe
| HP/UX does, given the unportability of code in a popular user-friendly
| mail agent published on the this network).  If the VAX would have the
+---------------

Huh???  Our computer's linker (Plexus P/60, System V; Plexus P/35, System
III on ncoast also) starts data segment allocatioon at address 2, so pointers
to 0 and 1 are guaranteed to cause core dumps; Elm came up fine on both
(barring the fact that someone installed it on ncoast by copying elm to
/usr/local/bin instead of running "make install"...)

++Brando
-- 
Copyright (C) 1987 Brandon S. Allbery -- you can redistribute only if your
	recipients can.

Brandon S. Allbery	{decvax,cbatt,cbosgd}!cwruecmp!ncoast!allbery
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