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From: Brian Inglis <Brian DOT Inglis AT SystematicSw DOT Invalid>
Newsgroups: comp.os.msdos.djgpp
Subject: Re: strange comparison error
Organization: Systematic Software
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Date: Mon, 05 Apr 2004 12:08:50 GMT
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To: djgpp AT delorie DOT com
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Reply-To: djgpp AT delorie DOT com

On Mon, 05 Apr 2004 12:57:11 +0200 in comp.os.msdos.djgpp, Rafael
García <rafael-no_spam_please_ AT geninfor DOT com> wrote:

>En Tue, 23 Mar 2004 08:37:58 -0500, DJ Delorie <dj AT delorie DOT com> escribió:
>
>>
>>> Sorry, I don't understand. Could you please explain a bit more?  We
>>> are using 32 bit numbers, the size of the struct is around 100
>>> bytes. We should go to thousands of t_field's to reach
>>> overflow. Right? I have 14 here.
>>
>> You don't know how close to the end of memory DJGPP put your
>> structures, though.
>
>Ouch! So when I am running a 1Mb program on a 128Mb RAM machine I can get 
>pointers (from malloc, for example) with values near to 2Gb! If this is 
>true, I need to rewrite some code!

4GB is the number you need to worry about. 

-- 
Thanks. Take care, Brian Inglis 	Calgary, Alberta, Canada

Brian DOT Inglis AT CSi DOT com 	(Brian dot Inglis at SystematicSw dot ab dot ca)
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