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#16206: 24.3; Incorrect unused variable byte-compiler warning in dotimes Date: Sun, 22 Dec 2013 21:48:50 -0500 Message-ID: References: <87ob4bxme9.fsf@susie.zeus.nullprogram.com> NNTP-Posting-Host: plane.gmane.org Mime-Version: 1.0 Content-Type: text/plain X-Trace: ger.gmane.org 1387766960 2782 80.91.229.3 (23 Dec 2013 02:49:20 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Mon, 23 Dec 2013 02:49:20 +0000 (UTC) Cc: 16206@debbugs.gnu.org To: Christopher Wellons Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Mon Dec 23 03:49:26 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 1Vuva8-0006Ri-WB for geb-bug-gnu-emacs@m.gmane.org; Mon, 23 Dec 2013 03:49:25 +0100 Original-Received: from localhost ([::1]:60106 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1Vuva8-0003UA-LP for geb-bug-gnu-emacs@m.gmane.org; Sun, 22 Dec 2013 21:49:24 -0500 Original-Received: from eggs.gnu.org ([2001:4830:134:3::10]:39519) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1VuvZz-0003U0-74 for bug-gnu-emacs@gnu.org; Sun, 22 Dec 2013 21:49:22 -0500 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1VuvZm-0006Do-5h for bug-gnu-emacs@gnu.org; Sun, 22 Dec 2013 21:49:15 -0500 Original-Received: from debbugs.gnu.org ([140.186.70.43]:49328) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1VuvZm-0006Dk-2p for bug-gnu-emacs@gnu.org; Sun, 22 Dec 2013 21:49:02 -0500 Original-Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.80) (envelope-from ) id 1VuvZl-0003VA-Pn for bug-gnu-emacs@gnu.org; Sun, 22 Dec 2013 21:49:01 -0500 X-Loop: help-debbugs@gnu.org Resent-From: Stefan Monnier Original-Sender: "Debbugs-submit" Resent-CC: bug-gnu-emacs@gnu.org Resent-Date: Mon, 23 Dec 2013 02:49:01 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: followup 16206 X-GNU-PR-Package: emacs X-GNU-PR-Keywords: Original-Received: via spool by 16206-submit@debbugs.gnu.org id=B16206.138776693513447 (code B ref 16206); Mon, 23 Dec 2013 02:49:01 +0000 Original-Received: (at 16206) by debbugs.gnu.org; 23 Dec 2013 02:48:55 +0000 Original-Received: from localhost ([127.0.0.1]:35114 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.80) (envelope-from ) id 1VuvZf-0003Up-8Q for submit@debbugs.gnu.org; Sun, 22 Dec 2013 21:48:55 -0500 Original-Received: from chene.dit.umontreal.ca ([132.204.246.20]:44346) by debbugs.gnu.org with esmtp (Exim 4.80) (envelope-from ) id 1VuvZd-0003Uh-LR for 16206@debbugs.gnu.org; Sun, 22 Dec 2013 21:48:53 -0500 Original-Received: from fmsmemgm.homelinux.net (lechon.iro.umontreal.ca [132.204.27.242]) by chene.dit.umontreal.ca (8.14.1/8.14.1) with ESMTP id rBN2mo6T023838; Sun, 22 Dec 2013 21:48:51 -0500 Original-Received: by fmsmemgm.homelinux.net (Postfix, from userid 20848) id 7631BAE25E; Sun, 22 Dec 2013 21:48:50 -0500 (EST) In-Reply-To: <87ob4bxme9.fsf@susie.zeus.nullprogram.com> (Christopher Wellons's message of "Fri, 20 Dec 2013 16:06:38 -0500") User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/24.3.50 (gnu/linux) X-NAI-Spam-Flag: NO X-NAI-Spam-Threshold: 5 X-NAI-Spam-Score: 0 X-NAI-Spam-Rules: 1 Rules triggered RV4800=0 X-NAI-Spam-Version: 2.3.0.9362 : core <4800> : inlines <347> : streams <1095445> : uri <1632547> X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.15 Precedence: list X-detected-operating-system: by eggs.gnu.org: GNU/Linux 3.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:82418 Archived-At: > When `lexical-binding' is t the byte-compiler issues an invalid warning > for `dotimes' when the optional "result" form is used. For example, > byte-compile a file with these contents. > ;;; -*- lexical-binding: t; -*- > (defun foo () > (dotimes (i 1 t) i)) Indeed. This is a known problem. I strongly recommend you don't use this third argument unless it makes use of `i' (which is basically the only case where it's useful, AFAIK). IOW use (defun foo () (dotimes (i 1) i) t) -- Stefan