Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753633AbXAATPn (ORCPT ); Mon, 1 Jan 2007 14:15:43 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S932669AbXAATPn (ORCPT ); Mon, 1 Jan 2007 14:15:43 -0500 Received: from tmailer.gwdg.de ([134.76.10.23]:46364 "EHLO tmailer.gwdg.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753633AbXAATPm (ORCPT ); Mon, 1 Jan 2007 14:15:42 -0500 Date: Mon, 1 Jan 2007 20:11:02 +0100 (MET) From: Jan Engelhardt To: Segher Boessenkool cc: "Robert P. J. Day" , trivial@kernel.org, Randy Dunlap , Muli Ben-Yehuda , Linux kernel mailing list Subject: Re: [PATCH] Documentation: Explain a second alternative for multi-line macros. In-Reply-To: Message-ID: References: <20061231194501.GE3730@rhun.ibm.com> <66cc662565c489fa9e604073ced64889@kernel.crashing.org> <45987EB0.1020505@oracle.com> MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII X-Spam-Report: Content analysis: 0.0 points, 6.0 required _SUMMARY_ Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 703 Lines: 24 On Jan 1 2007 18:51, Segher Boessenkool wrote: >> If people want to return something from a ({ }) construct, they should do >> it >> explicitly, e.g. >> >> #define setcc(cc) ({ \ >> partial_status &= ~(SW_C0|SW_C1|SW_C2|SW_C3); \ >> partial_status |= (cc) & (SW_C0|SW_C1|SW_C2|SW_C3); \ >> partial_status; \ >> }) > > No, they generally should use an inline function instead. Perhaps. But that won't work with defines where typeof is involved. -`J' -- - 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/