Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755244AbXAARvX (ORCPT ); Mon, 1 Jan 2007 12:51:23 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1755245AbXAARvX (ORCPT ); Mon, 1 Jan 2007 12:51:23 -0500 Received: from gate.crashing.org ([63.228.1.57]:59177 "EHLO gate.crashing.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755244AbXAARvW (ORCPT ); Mon, 1 Jan 2007 12:51:22 -0500 In-Reply-To: References: <20061231194501.GE3730@rhun.ibm.com> <66cc662565c489fa9e604073ced64889@kernel.crashing.org> <45987EB0.1020505@oracle.com> Mime-Version: 1.0 (Apple Message framework v623) Content-Type: text/plain; charset=US-ASCII; format=flowed Message-Id: Content-Transfer-Encoding: 7bit Cc: "Robert P. J. Day" , trivial@kernel.org, Randy Dunlap , Muli Ben-Yehuda , Linux kernel mailing list From: Segher Boessenkool Subject: Re: [PATCH] Documentation: Explain a second alternative for multi-line macros. Date: Mon, 1 Jan 2007 18:51:05 +0100 To: Jan Engelhardt X-Mailer: Apple Mail (2.623) Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 575 Lines: 20 > 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. Segher - 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/