Article View: comp.sys.amiga.tech
Article #6090Re: JRComm, VLT, Handshake
From: Andy Finkel
Date: Fri, 26 Oct 1990 16:14
Date: Fri, 26 Oct 1990 16:14
31 lines
1771 bytes
1771 bytes
In article <458@faatcrl.UUCP> jprad@faatcrl.UUCP (Jack Radigan) writes:
>jesup@cbmvax.commodore.com (Randell Jesup) writes:
>
>> A note for all programmers out there: there is NO guarantee that
>>location 0 will be 0. References to location 0 are bugs, and enforcer will
>>trap and report them. Memmung stuffs a nasty value into location 0 to try
>>to break incorrect programs.
>
>Would've been nice if this was common knowledge *before* the 2091 hit the
>streets. Alot of programs got bit by this problem, and more than a few
>were written by lawful coders too.
>
> -jack-
If your program breaks when location 0 is non NULL this means
you have an unitialized pointer somewhere in your program, and
are using memory you did not allocate (ie location 0)
I would have hoped that this would have been common knowledge
amoung programmers long before the 2091 appeared.
andy
--
andy finkel {uunet|rutgers|amiga}!cbmvax!andy
Commodore-Amiga, Inc.
"If your ancestors were alive today, what they'd probably be saying is:
'Where am I and why is it so dark ?' "
Any expressed opinions are mine; but feel free to share.
I disclaim all responsibilities, all shapes, all sizes, all colors.
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Path: arc1-ca.pugleaf.net!utzoo!attcan!uunet!samsung!zaphod.mps.ohio-state.edu!wuarchive!psuvax1!rutgers!cbmvax!andy From: andy@cbmvax.commodore.com (Andy Finkel) Newsgroups: comp.sys.amiga.tech Subject: Re: JRComm, VLT, Handshake Message-ID: <15418@cbmvax.commodore.com> Date: 26 Oct 90 16:14:09 GMT References: <1990Oct11.235942.2141@caen.engin.umich.edu> <9811@uhccux.uhcc.Hawaii.Edu> <15328@cbmvax.commodore.com> <458@faatcrl.UUCP> Reply-To: andy@cbmvax.commodore.com (Andy Finkel) Distribution: na Organization: Commodore, West Chester, PA Lines: 31