linux-kernel - Re: [RFC] Documentation/CodingStyle: Add rules for goto labels

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Message-ID: <20070604175751.GB3437@dhcp83-182.boston.redhat.com>
Date:	Mon, 4 Jun 2007 13:57:51 -0400
From:	Jeff Garzik <jeff@...zik.org>
To:	"H. Peter Anvin" <hpa@...or.com>
Cc:	Jan Engelhardt <jengelh@...ux01.gwdg.de>,
	Randy Dunlap <rdunlap@...otime.net>,
	Al Viro <viro@....linux.org.uk>,
	LKML <linux-kernel@...r.kernel.org>, akpm@...ux-foundation.org
Subject: Re: [RFC] Documentation/CodingStyle: Add rules for goto labels

On Mon, Jun 04, 2007 at 10:43:51AM -0700, H. Peter Anvin wrote:
> Jan Engelhardt wrote:
> > On Jun 4 2007 10:27, H. Peter Anvin wrote:
> >> Jeff Garzik wrote:
> >>> Seconded.  All my code contains the goto label in the first column.
> >>>
> >>> IMO any other goto label indentation is silly, because it obscures the
> >>> goto label within the code block.
> >> I would have to disagree with this.  IMNSHO, a goto label is like a case
> >> label, and they should be treated the same way.
> > 
> > But gotos are special. ("Evil" minus the "it's good for unrolling in case of an
> > error" case).
> > 
> 
> So?
> 
> You still want them to be associated with the level the bailout happens at.

A matter of opinion :)  I tend to think goto is special enough to
warrant column 1 unconditionally.  It is special, so it draws additional
attention over and above case labels.

I and others have been tripped up when programmers "hide" goto
statements among regular statements.

IMO goto warrants a big flashing "notice me" sign.

	Jeff



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