From: Ross Kendall Axe <ross.axe@blueyonder.co.uk>
To: linux-os@analogic.com
Cc: Jan Engelhardt <jengelh@linux01.gwdg.de>,
Chris Friesen <cfriesen@nortelnetworks.com>,
Linux kernel <linux-kernel@vger.kernel.org>
Subject: Re: question on common error-handling idiom
Date: Wed, 03 Nov 2004 10:45:55 +0000 [thread overview]
Message-ID: <4188B6E3.8010800@blueyonder.co.uk> (raw)
In-Reply-To: <Pine.LNX.4.61.0411021607400.8977@chaos.analogic.com>
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linux-os wrote:
>>> There's something I've been wondering about for a while. There is a
>>> lot of code
>>> in linux that looks something like this:
>>>
>>> err = -ERRORCODE
>>> if (error condition)
>>> goto out;
>>
>
>
> I think it's just to get around the "uninitialized variable"
> warning when the 'C' compiler doesn't know that it will
> always be initialized.
>
gcc is smart enough to get this case right.
Ross
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next prev parent reply other threads:[~2004-11-03 10:48 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-11-02 20:08 question on common error-handling idiom Chris Friesen
2004-11-02 20:58 ` Jan Engelhardt
2004-11-02 21:12 ` linux-os
2004-11-03 10:45 ` Ross Kendall Axe [this message]
2004-11-02 21:12 ` Russell Miller
2004-11-02 21:16 ` Jesper Juhl
2004-11-02 21:21 ` Oliver Neukum
2004-11-02 21:29 ` Jan Engelhardt
2004-11-02 21:48 ` Jesper Juhl
2004-11-03 16:49 ` Chris Friesen
2004-11-03 8:11 ` GNicz
2004-11-04 19:52 ` Linus Torvalds
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