linux-kernel - Re: do { } while (0) question

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Message-ID: <20060801085343.GC9589@osiris.boeblingen.de.ibm.com>
Date:	Tue, 1 Aug 2006 10:53:43 +0200
From:	Heiko Carstens <heiko.carstens@...ibm.com>
To:	Jonathan Matthews-Levine <matthewslevine@...il.com>
Cc:	linux-kernel@...r.kernel.org
Subject: Re: do { } while (0) question

On Tue, Aug 01, 2006 at 09:45:26AM +0100, Jonathan Matthews-Levine wrote:
> On 01/08/06, Heiko Carstens <heiko.carstens@...ibm.com> wrote:
> >---
> >Always use do {} while (0).  Failing to do so can cause subtle compile
> >failures or bugs.
> >---
> >
> >I'm really wondering what these subtle compile failures or bugs are.
> >Could you please explain?
> 
> http://kernelnewbies.org/FAQ/DoWhile0

My question was referring to empty do { } while (0)'s... that's something
the FAQ is not dealing with :)
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