linux-kernel - Re: kfree(0)

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Message-ID: <jelkcdf966.fsf@sykes.suse.de>
Date:	Wed, 15 Aug 2007 11:18:09 +0200
From:	Andreas Schwab <schwab@...e.de>
To:	Jan Engelhardt <jengelh@...putergmbh.de>
Cc:	Jason Uhlenkott <jasonuhl@...onuhl.org>,
	Arjan van de Ven <arjan@...radead.org>,
	Tim Bird <tim.bird@...sony.com>,
	linux kernel <linux-kernel@...r.kernel.org>
Subject: Re: kfree(0) - ok?

Jan Engelhardt <jengelh@...putergmbh.de> writes:

> On Aug 14 2007 16:21, Jason Uhlenkott wrote:
>>On Tue, Aug 14, 2007 at 15:55:48 -0700, Arjan van de Ven wrote:
>>> NULL is not 0 though.
>>
>>It is.  Its representation isn't guaranteed to be all-bits-zero,
>
> C guarantees that.

Linux C does it.  But not Standard C.

Andreas.

-- 
Andreas Schwab, SuSE Labs, schwab@...e.de
SuSE Linux Products GmbH, Maxfeldstraße 5, 90409 Nürnberg, Germany
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