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Date: Tue, 15 Sep 2015 15:31:58 +0200 (CEST)
From: Julia Lawall <julia.lawall@lip6.fr>
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To: SF Markus Elfring <elfring@users.sourceforge.net>
cc: Julia Lawall <julia.lawall@lip6.fr>, Andrzej Hajda <a.hajda@samsung.com>,
        Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>,
        Gilles Muller <Gilles.Muller@lip6.fr>, Joe Perches <joe@perches.com>,
        Nicolas Palix <nicolas.palix@imag.fr>, Michal Marek <mmarek@suse.com>,
        linux-kernel@vger.kernel.org, kernel-janitors@vger.kernel.org,
        cocci@systeme.lip6.fr
Subject: Re: [PATCH] coccinelle: tests: unsigned value cannot be lesser than
 zero
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On Tue, 15 Sep 2015, SF Markus Elfring wrote:

> >>  v@p
> >> (
> >> *< 0
> >> |
> >> *<= 0
> >> )
> >
> > It does not, and is not intended to, work.  The branches of a disjunction
> > should be complete expressions.
>
> Will the following SmPL approach be more appropriate then?
>
> (
> *v@p < 0
> |
> *v@p <= 0
> )

Actually, all of

v < 0 (never true)
v <= 0 (same as v == 0)
v >= 0 (always true)

would seem to merit attention.  Andrzej, what do you think?

julia


>
> Regards,
> Markus
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