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From: "Stuart D. Herring" <herring@lanl.gov>
Subject: Re: Problem report #32
Date: Mon, 10 Apr 2006 12:45:13 -0700 (PDT)	[thread overview]
Message-ID: <38419.128.165.123.132.1144698313.squirrel@webmail.lanl.gov> (raw)
In-Reply-To: <200604101858.k3AIwsFQ005633@scanner2.ics.uci.edu>

> At conditional (1): "selected_frame & 7 == 4" taking true path
> At conditional (2): "((0), (selected_frame & -8))->size & 1073742848 ==
> 1073742848" taking true path
> At conditional (3): "(((0), (selected_frame & -8))->output_data).nothing
> != 0" taking true path
> At conditional (4): "f == ((selected_frame & 7 == 4 && ((0),
> (selected_frame & -8))->size & 1073742848 == 1073742848 && (((0),
> (selected_frame & -8))->output_data).nothing != 0) ? (0), (selected_frame
> & -8) : ((abort), (0)))" taking true path
>
> 5750 	                    if (f == SELECTED_FRAME ())
>
> Event dereference: Dereferencing NULL value "f"
> Also see events: [returned_null][var_assigned]

(I'm not an expert, but I think this is obvious:)
f can't be NULL here: SELECTED_FRAME() (which eventually decays to
selected_frame & -8) is not going to be 0 (right?), so if f compares equal
to it it's a real pointer.

Davis

-- 
This product is sold by volume, not by mass.  If it appears too dense or
too sparse, it is because mass-energy conversion has occurred during
shipping.

  reply	other threads:[~2006-04-10 19:45 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2006-04-10 18:58 Problem report #32 Dan Nicolaescu
2006-04-10 19:45 ` Stuart D. Herring [this message]
2006-04-11  6:49   ` Jan D.

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