Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1765948AbXHOI5o (ORCPT ); Wed, 15 Aug 2007 04:57:44 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1759192AbXHOI5d (ORCPT ); Wed, 15 Aug 2007 04:57:33 -0400 Received: from adsl-67-117-79-109.dsl.sntc01.pacbell.net ([67.117.79.109]:2900 "EHLO aurum.uhlenkott.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1759160AbXHOI5c (ORCPT ); Wed, 15 Aug 2007 04:57:32 -0400 X-Greylist: delayed 314 seconds by postgrey-1.27 at vger.kernel.org; Wed, 15 Aug 2007 04:57:32 EDT Date: Wed, 15 Aug 2007 01:52:17 -0700 From: Jason Uhlenkott To: Jan Engelhardt Cc: Arjan van de Ven , Tim Bird , linux kernel Subject: Re: kfree(0) - ok? Message-ID: <20070815085217.GA14156@aurum.uhlenkott.net> References: <46C233CB.9000602@am.sony.com> <1187132149.2618.2.camel@laptopd505.fenrus.org> <20070814232107.GA4265@aurum.uhlenkott.net> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.5.9i Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 658 Lines: 18 On Wed, Aug 15, 2007 at 09:28:54 +0200, Jan Engelhardt wrote: > > 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. Equality with the expression 0 is guaranteed. Representation isn't. http://www.c-faq.com/null/varieties.html - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/