From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: Stefan Monnier Newsgroups: gmane.emacs.help Subject: Re: Optional Arguments Date: Mon, 07 Dec 2020 15:13:43 -0500 Message-ID: References: <20201207130630.GA10719@tuxteam.de> <20201207155108.GC15617@tuxteam.de> Mime-Version: 1.0 Content-Type: text/plain Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="27615"; mail-complaints-to="usenet@ciao.gmane.io" User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/28.0.50 (gnu/linux) To: help-gnu-emacs@gnu.org Cancel-Lock: sha1:ZGnIzxMBg4EOSYrz1Qcq473+SmU= Original-X-From: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane-mx.org@gnu.org Mon Dec 07 21:21:17 2020 Return-path: Envelope-to: geh-help-gnu-emacs@m.gmane-mx.org Original-Received: from lists.gnu.org ([209.51.188.17]) by ciao.gmane.io with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1kmN0X-00075j-SX for geh-help-gnu-emacs@m.gmane-mx.org; Mon, 07 Dec 2020 21:21:17 +0100 Original-Received: from localhost ([::1]:53310 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1kmN0W-00070m-Pe for geh-help-gnu-emacs@m.gmane-mx.org; Mon, 07 Dec 2020 15:21:16 -0500 Original-Received: from eggs.gnu.org ([2001:470:142:3::10]:33588) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1kmMtW-0000Li-UJ for help-gnu-emacs@gnu.org; Mon, 07 Dec 2020 15:14:02 -0500 Original-Received: from static.214.254.202.116.clients.your-server.de ([116.202.254.214]:48514 helo=ciao.gmane.io) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1kmMtN-0001vc-A7 for help-gnu-emacs@gnu.org; Mon, 07 Dec 2020 15:14:02 -0500 Original-Received: from list by ciao.gmane.io with local (Exim 4.92) (envelope-from ) id 1kmMtI-00073T-GC for help-gnu-emacs@gnu.org; Mon, 07 Dec 2020 21:13:48 +0100 X-Injected-Via-Gmane: http://gmane.org/ Received-SPF: pass client-ip=116.202.254.214; envelope-from=geh-help-gnu-emacs@m.gmane-mx.org; helo=ciao.gmane.io X-Spam_score_int: -15 X-Spam_score: -1.6 X-Spam_bar: - X-Spam_report: (-1.6 / 5.0 requ) BAYES_00=-1.9, HEADER_FROM_DIFFERENT_DOMAINS=0.25, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=no autolearn_force=no X-Spam_action: no action X-BeenThere: help-gnu-emacs@gnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: Users list for the GNU Emacs text editor List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane-mx.org@gnu.org Original-Sender: "help-gnu-emacs" Xref: news.gmane.io gmane.emacs.help:126169 Archived-At: >> Either you return it (in your case, e.g. by returning a pair) >> >> (cons ma mb) > > Because by default, a function returns the value of the last expression > evaluated as the return value. Correct? Almost: to be correct you'd have to remove "by default, ". Stefan