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Date: Tue, 23 Mar 2004 08:37:58 -0500
Message-Id: <200403231337.i2NDbwaw006048@envy.delorie.com>
From: DJ Delorie <dj AT delorie DOT com>
To: djgpp AT delorie DOT com
In-reply-to: <opr5a5opiiwfff31@news.mad.ttd.net> (message from
	=?iso-8859-15?Q?Rafael_Garc=EDa?= on Tue, 23 Mar 2004 10:23:03 +0100)
Subject: Re: strange comparison error
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> 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.

Since the printf uses pointer subtraction to print the value, you
should use pointer subtraction to do the check.  That way, any
overflow would at least be consistent.