Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932200AbVJKRiS (ORCPT ); Tue, 11 Oct 2005 13:38:18 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S932222AbVJKRiS (ORCPT ); Tue, 11 Oct 2005 13:38:18 -0400 Received: from omx2-ext.sgi.com ([192.48.171.19]:44516 "EHLO omx2.sgi.com") by vger.kernel.org with ESMTP id S932200AbVJKRiR (ORCPT ); Tue, 11 Oct 2005 13:38:17 -0400 Date: Tue, 11 Oct 2005 10:37:46 -0700 From: Paul Jackson To: Alan Stern Cc: laforge@gnumonks.org, torvalds@osdl.org, chrisw@osdl.org, vsu@altlinux.ru, linux-usb-devel@lists.sourceforge.net, linux-kernel@vger.kernel.org, security@linux.kernel.org, vendor-sec@lst.de Subject: Re: [linux-usb-devel] Re: [BUG/PATCH/RFC] Oops while completing async USB via usbdevio Message-Id: <20051011103746.61598183.pj@sgi.com> In-Reply-To: References: <20051010174429.GH5627@rama> Organization: SGI X-Mailer: Sylpheed version 2.0.0beta5 (GTK+ 2.4.9; i686-pc-linux-gnu) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 830 Lines: 22 Alan asked: > But why do people go to the > effort of confusing readers by using "^" instead of "!="? My guess - eor (^) was quicker than not-equal (!=) on a PDP-11. That code fragment for checking uid's has been around a -long- time, if my memory serves me. It's gotten to be like the infamous "!!" boolean conversion operator, a bit of vernacular that would be harder to read if recoded using modern coding style. -- I won't rest till it's the best ... Programmer, Linux Scalability Paul Jackson 1.925.600.0401 - 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/