Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1161257AbWJKUj2 (ORCPT ); Wed, 11 Oct 2006 16:39:28 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1161258AbWJKUj2 (ORCPT ); Wed, 11 Oct 2006 16:39:28 -0400 Received: from terminus.zytor.com ([192.83.249.54]:18874 "EHLO terminus.zytor.com") by vger.kernel.org with ESMTP id S1161257AbWJKUj1 (ORCPT ); Wed, 11 Oct 2006 16:39:27 -0400 Message-ID: <452D566A.50705@zytor.com> Date: Wed, 11 Oct 2006 13:39:06 -0700 From: "H. Peter Anvin" User-Agent: Thunderbird 1.5.0.7 (X11/20060913) MIME-Version: 1.0 To: Jakub Jelinek CC: Al Viro , Jan Engelhardt , torvalds@osdl.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH] use %p for pointers References: <20061011145441.GB29920@ftp.linux.org.uk> <452D3BB6.8040200@zytor.com> <20061011202814.GD20982@devserv.devel.redhat.com> In-Reply-To: <20061011202814.GD20982@devserv.devel.redhat.com> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 810 Lines: 23 Jakub Jelinek wrote: > On Wed, Oct 11, 2006 at 11:45:10AM -0700, H. Peter Anvin wrote: >> Al Viro wrote: >>> %p will do no such thing in the kernel. As for the difference... %x >>> might happen to work on some architectures (where sizeof(void >>> *)==sizeof(int)), >>> but it's not portable _and_ not right. %p is proper C for that... >> It's really too bad gcc bitches about %#p, because that's arguably The >> Right Thing. > > It is correct that gcc warns about %#p, that invokes undefined behavior > in ISO C99. > Yes, it's a bug in the standard. -hpa - 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/