Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S965485AbXA3OS0 (ORCPT ); Tue, 30 Jan 2007 09:18:26 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S965487AbXA3OS0 (ORCPT ); Tue, 30 Jan 2007 09:18:26 -0500 Received: from tmailer.gwdg.de ([134.76.10.23]:36346 "EHLO tmailer.gwdg.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S965485AbXA3OSZ (ORCPT ); Tue, 30 Jan 2007 09:18:25 -0500 Date: Tue, 30 Jan 2007 15:12:54 +0100 (MET) From: Jan Engelhardt To: "Robert P. J. Day" cc: Nick Piggin , Linux kernel mailing list , Andrew Morton , Paul Mackerras , dhowells@redhat.com, galak@kernel.crashing.org Subject: Re: [PATCH] Add "is_power_of_2" checking to log2.h. In-Reply-To: Message-ID: References: <45BF3954.8050106@yahoo.com.au> 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: 434 Lines: 21 >> Why the qualifier? Zero *is* not a power of 2, is it? No, it is not: In[1]:= Solve[2^n == 0, n] Out[1]= {} So says Mathematica5. Jan -- ft: http://freshmeat.net/p/chaostables/ - 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/