From:	"John M. Aldrich" <fighteer AT cs DOT com>
Newsgroups:	comp.os.msdos.djgpp
Subject:	Re: How assign to NULL POINTER
Date:	Tue, 19 Nov 1996 23:28:37 -0800
Organization:	Three pounds of chaos and a pinch of salt
Lines:	23
Message-ID:	<3292B325.26A8@cs.com>
References:	<Pine DOT SUN DOT 3 DOT 91 DOT 961114172108 DOT 8432G-100000 AT is> <32926C6D DOT 7FEBE86F AT alcyone DOT com>
Reply-To:	fighteer AT cs DOT com
NNTP-Posting-Host:	ppp107.cs.com
Mime-Version:	1.0
To:	Erik Max Francis <max AT alcyone DOT com>
To:	djgpp AT delorie DOT com
DJ-Gateway:	from newsgroup comp.os.msdos.djgpp

Erik Max Francis wrote:
> 
> Eli Zaretskii wrote:
> 
> > What is your DPMI host?  If it's not CWSDPMI or 386Max, then you lose:
> > all of the rest don't disallow null pointer dereference, but rather let
> > you get away with it.
> 
> You're kidding.

Nope.  It's a DPMI 1.0 feature only, and most DPMI hosts (Windoze
included) don't bother to implement anything more than 0.9.  CWSDPMI
included it for several reasons that I don't quite remember at present,
but the gist of it is that if you want to catch NULL dereferences, you
MUST run using cwsdpmi or 386Max.

-- 
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| John M. Aldrich, aka Fighteer I  |        fighteer AT cs DOT com         |
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