linux-kernel - Re: [alsa-devel] [PATCH] ALSA: have snd_BUG

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Message-ID: <s5h7i7gq7xz.wl%tiwai@suse.de>
Date:	Fri, 07 Nov 2008 09:03:20 +0100
From:	Takashi Iwai <tiwai@...e.de>
To:	"Mike Frysinger" <vapier.adi@...il.com>
Cc:	alsa-devel@...a-project.org, "Mike Frysinger" <vapier@...too.org>,
	linux-kernel@...r.kernel.org
Subject: Re: [alsa-devel] [PATCH] ALSA: have snd_BUG_ON() always refer to arguments

At Fri, 7 Nov 2008 02:57:40 -0500,
Mike Frysinger wrote:
> 
> On Fri, Nov 7, 2008 at 02:38, Takashi Iwai wrote:
> > At Fri, 7 Nov 2008 02:29:25 -0500, Mike Frysinger wrote:
> >> it also breaks
> >> valid C code if there were side effects in the (cond) as any other
> >> macro which does not properly utilize every argument exactly once.
> >
> > BTW, what do you mean this exactly?
> 
> any potent statement.  such as assignment or pre/post increment/decrement or ...

Well, in that case, such a code itself is buggy :)


Takashi
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