Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756421Ab0GBALA (ORCPT ); Thu, 1 Jul 2010 20:11:00 -0400 Received: from mx1.redhat.com ([209.132.183.28]:22354 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755254Ab0GBAK6 (ORCPT ); Thu, 1 Jul 2010 20:10:58 -0400 Organization: Red Hat UK Ltd. Registered Address: Red Hat UK Ltd, Amberley Place, 107-111 Peascod Street, Windsor, Berkshire, SI4 1TE, United Kingdom. Registered in England and Wales under Company Registration No. 3798903 From: David Howells In-Reply-To: <4C2CF400.20507@gmail.com> References: <4C2CF400.20507@gmail.com> <4C2B9F49.8090304@gmail.com> <4C2A6B6C.1000306@gmail.com> <4C29674C.9070503@gmail.com> <4C28E14D.5050701@gmail.com> <1277621246-10960-4-git-send-email-justinmattock@gmail.com> <1277621246-10960-1-git-send-email-justinmattock@gmail.com> <7214.1277729293@redhat.com> <8066.1277750854@redhat.com> <22319.1277826461@redhat.com> <25800.1277889215@redhat.com> <16513.1277976706@redhat.com> To: "Justin P. Mattock" Cc: dhowells@redhat.com, linux-kernel@vger.kernel.org, linux-acpi@vger.kernel.org, lenb@kernel.org Subject: Re: [PATCH 3/5]acpi:glue.c Fix warning: variable 'ret' set but not used Date: Fri, 02 Jul 2010 01:10:45 +0100 Message-ID: <19422.1278029445@redhat.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 597 Lines: 20 Justin P. Mattock wrote: > a bit confused with the whole: "?:" though > *condition ? value if true : value if false* (what if both are true > what if both are false or does it matter?) If you say: cond ?: false_value then you'll get cond if cond is non-zero and false_value if it isn't. I suspect it's a gccism. David -- 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/