From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: Stefan Monnier Newsgroups: gmane.emacs.bugs Subject: bug#13419: make 'eabs' act more like a function Date: Sat, 12 Jan 2013 19:26:55 -0500 Message-ID: References: <50F10643.8000408@cs.ucla.edu> <50F1EC7D.6050609@cs.ucla.edu> NNTP-Posting-Host: plane.gmane.org Mime-Version: 1.0 Content-Type: text/plain X-Trace: ger.gmane.org 1358036880 12031 80.91.229.3 (13 Jan 2013 00:28:00 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Sun, 13 Jan 2013 00:28:00 +0000 (UTC) Cc: 13419@debbugs.gnu.org To: Paul Eggert Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Sun Jan 13 01:28:17 2013 Return-path: Envelope-to: geb-bug-gnu-emacs@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 1TuBQs-0002oQ-CE for geb-bug-gnu-emacs@m.gmane.org; Sun, 13 Jan 2013 01:28:14 +0100 Original-Received: from localhost ([::1]:34313 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1TuBQc-0007gJ-3V for geb-bug-gnu-emacs@m.gmane.org; Sat, 12 Jan 2013 19:27:58 -0500 Original-Received: from eggs.gnu.org ([208.118.235.92]:57090) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1TuBQV-0007fo-GC for bug-gnu-emacs@gnu.org; Sat, 12 Jan 2013 19:27:56 -0500 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1TuBQR-0002Tb-0L for bug-gnu-emacs@gnu.org; Sat, 12 Jan 2013 19:27:51 -0500 Original-Received: from debbugs.gnu.org ([140.186.70.43]:51932) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1TuBQQ-0002TV-RS for bug-gnu-emacs@gnu.org; Sat, 12 Jan 2013 19:27:46 -0500 Original-Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.72) (envelope-from ) id 1TuBQf-00066b-LA for bug-gnu-emacs@gnu.org; Sat, 12 Jan 2013 19:28:01 -0500 X-Loop: help-debbugs@gnu.org Resent-From: Stefan Monnier Original-Sender: debbugs-submit-bounces@debbugs.gnu.org Resent-CC: bug-gnu-emacs@gnu.org Resent-Date: Sun, 13 Jan 2013 00:28:01 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: followup 13419 X-GNU-PR-Package: emacs X-GNU-PR-Keywords: patch Original-Received: via spool by 13419-submit@debbugs.gnu.org id=B13419.135803683923411 (code B ref 13419); Sun, 13 Jan 2013 00:28:01 +0000 Original-Received: (at 13419) by debbugs.gnu.org; 13 Jan 2013 00:27:19 +0000 Original-Received: from localhost ([127.0.0.1]:57396 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.72) (envelope-from ) id 1TuBPy-00065X-Mk for submit@debbugs.gnu.org; Sat, 12 Jan 2013 19:27:19 -0500 Original-Received: from ironport2-out.teksavvy.com ([206.248.154.182]:53866) by debbugs.gnu.org with esmtp (Exim 4.72) (envelope-from ) id 1TuBPw-00065K-DV for 13419@debbugs.gnu.org; Sat, 12 Jan 2013 19:27:17 -0500 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: AtkGAG6Zu09FpZpV/2dsb2JhbABEDoFtshaBCIIVAQEEAVYjBQsLNBIUGA0kiBwFugmQRAOIQppxgViCMFc X-IronPort-AV: E=Sophos;i="4.75,637,1330923600"; d="scan'208";a="212392905" Original-Received: from 69-165-154-85.dsl.teksavvy.com (HELO fmsmemgm.homelinux.net) ([69.165.154.85]) by ironport2-out.teksavvy.com with ESMTP/TLS/ADH-AES256-SHA; 12 Jan 2013 19:26:55 -0500 Original-Received: by fmsmemgm.homelinux.net (Postfix, from userid 20848) id 5D7A7AE0B8; Sat, 12 Jan 2013 19:26:55 -0500 (EST) In-Reply-To: <50F1EC7D.6050609@cs.ucla.edu> (Paul Eggert's message of "Sat, 12 Jan 2013 15:06:37 -0800") User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/24.3.50 (gnu/linux) X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.13 Precedence: list X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.6.x X-Received-From: 140.186.70.43 X-BeenThere: bug-gnu-emacs@gnu.org List-Id: "Bug reports for GNU Emacs, the Swiss army knife of text editors" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Original-Sender: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Xref: news.gmane.org gmane.emacs.bugs:69690 Archived-At: >> Do you really consider this code cleaner? > The implementation's worse, but the use is nicer, > since eabs is guaranteed to evaluate its argument just once. I understand this, but I think the price is too high. > Anyway, here's a simpler implementation that also evaluates > its argument just once: would you prefer this? > #define eabs(x) imaxabs (x) But then it's not inlined, right? I think this is trying to fix something that's not broken and C simply does not offer a good enough alternative. Stefan