From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: Andreas Schwab Newsgroups: gmane.emacs.devel Subject: Re: Windows 64 port Date: Fri, 23 Mar 2012 10:45:35 +0100 Message-ID: References: <20120219211800.0000558f@unknown> <834numv7js.fsf@gnu.org> <4F428780.8070902@cs.ucla.edu> <4F4D507F.7030008@cs.ucla.edu> <834ntfwxa6.fsf@gnu.org> NNTP-Posting-Host: plane.gmane.org Mime-Version: 1.0 Content-Type: text/plain X-Trace: dough.gmane.org 1332495966 14511 80.91.229.3 (23 Mar 2012 09:46:06 GMT) X-Complaints-To: usenet@dough.gmane.org NNTP-Posting-Date: Fri, 23 Mar 2012 09:46:06 +0000 (UTC) Cc: ajmr@ilovetortilladepatatas.com, fabrice.popineau@supelec.fr, emacs-devel@gnu.org, eggert@cs.ucla.edu To: Eli Zaretskii Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Fri Mar 23 10:46:04 2012 Return-path: Envelope-to: ged-emacs-devel@m.gmane.org Original-Received: from lists.gnu.org ([208.118.235.17]) by plane.gmane.org with esmtp (Exim 4.69) (envelope-from ) id 1SB14O-0007Ey-4d for ged-emacs-devel@m.gmane.org; Fri, 23 Mar 2012 10:46:04 +0100 Original-Received: from localhost ([::1]:57294 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1SB14N-000481-Jg for ged-emacs-devel@m.gmane.org; Fri, 23 Mar 2012 05:46:03 -0400 Original-Received: from eggs.gnu.org ([208.118.235.92]:38357) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1SB14E-000447-2F for emacs-devel@gnu.org; Fri, 23 Mar 2012 05:46:01 -0400 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1SB148-00008P-0Z for emacs-devel@gnu.org; Fri, 23 Mar 2012 05:45:53 -0400 Original-Received: from mail-out.m-online.net ([212.18.0.10]:42245) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1SB141-00007Q-Fi; Fri, 23 Mar 2012 05:45:41 -0400 Original-Received: from frontend1.mail.m-online.net (frontend1.mail.intern.m-online.net [192.168.8.180]) by mail-out.m-online.net (Postfix) with ESMTP id 3VDfxs5ZKQz3hhbw; Fri, 23 Mar 2012 10:45:36 +0100 (CET) Original-Received: from igel.home (ppp-93-104-159-101.dynamic.mnet-online.de [93.104.159.101]) by mail.mnet-online.de (Postfix) with ESMTPA id 3VDfxr56C8z4KK40; Fri, 23 Mar 2012 10:45:36 +0100 (CET) Original-Received: by igel.home (Postfix, from userid 501) id DD782CA2A0; Fri, 23 Mar 2012 10:45:35 +0100 (CET) X-Yow: On the road, ZIPPY is a pinhead without a purpose, but never without a POINT. In-Reply-To: <834ntfwxa6.fsf@gnu.org> (Eli Zaretskii's message of "Fri, 23 Mar 2012 10:12:49 +0200") User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/24.0.94 (gnu/linux) X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.6, seldom 2.4 (older, 4) X-Received-From: 212.18.0.10 X-BeenThere: emacs-devel@gnu.org X-Mailman-Version: 2.1.14 Precedence: list List-Id: "Emacs development discussions." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Original-Sender: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Xref: news.gmane.org gmane.emacs.devel:149190 Archived-At: Eli Zaretskii writes: >> From: Andreas Schwab >> Cc: Paul Eggert , Eli Zaretskii , AJMR , emacs-devel@gnu.org >> Date: Fri, 23 Mar 2012 00:38:04 +0100 >> >> > Maybe I'm too naive but if x is unsigned, I don't expect to >> > see -x . The implicit semantics for unsigned is x >= 0. >> >> -x is well defined for any value of unsigned integer type. > > Perhaps so, but using that obfuscates the code, so it's undesirable if > it can be avoided. There is no obfuscation. This is the only way to make it work correctly. Andreas. -- Andreas Schwab, schwab@linux-m68k.org GPG Key fingerprint = 58CA 54C7 6D53 942B 1756 01D3 44D5 214B 8276 4ED5 "And now for something completely different."