From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: Michael Heerdegen Newsgroups: gmane.emacs.help Subject: Re: Another question about lambdas Date: Sun, 11 Dec 2022 01:38:12 +0100 Message-ID: <87leneydu3.fsf@web.de> References: <87tu23kw9x.fsf@web.de> <90fbb9437f0c7a09ad4c@heytings.org> Mime-Version: 1.0 Content-Type: text/plain Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="40351"; mail-complaints-to="usenet@ciao.gmane.io" User-Agent: Gnus/5.13 (Gnus v5.13) To: help-gnu-emacs@gnu.org Cancel-Lock: sha1:jWXk0Q54l6KCxzcwa6UVTn7tIJs= Original-X-From: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane-mx.org@gnu.org Sun Dec 11 01:39:00 2022 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 1p4AMt-000AGk-MF for geh-help-gnu-emacs@m.gmane-mx.org; Sun, 11 Dec 2022 01:38:59 +0100 Original-Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1p4AMM-0005cR-SZ; Sat, 10 Dec 2022 19:38:26 -0500 Original-Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1p4AMK-0005cH-Nk for help-gnu-emacs@gnu.org; Sat, 10 Dec 2022 19:38:24 -0500 Original-Received: from ciao.gmane.io ([116.202.254.214]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1p4AMJ-00059g-3b for help-gnu-emacs@gnu.org; Sat, 10 Dec 2022 19:38:24 -0500 Original-Received: from list by ciao.gmane.io with local (Exim 4.92) (envelope-from ) id 1p4AME-0009SI-Se for help-gnu-emacs@gnu.org; Sun, 11 Dec 2022 01:38:18 +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: -13 X-Spam_score: -1.4 X-Spam_bar: - X-Spam_report: (-1.4 / 5.0 requ) BAYES_00=-1.9, FREEMAIL_FORGED_FROMDOMAIN=0.249, FREEMAIL_FROM=0.001, HEADER_FROM_DIFFERENT_DOMAINS=0.249, 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: 2.1.29 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-bounces+geh-help-gnu-emacs=m.gmane-mx.org@gnu.org Xref: news.gmane.io gmane.emacs.help:141616 Archived-At: Gregory Heytings writes: > > (let* ((x 'l) > > (f (lambda () x)) > > (x 'd)) > > (funcall f)) > I think the following is clearer: > > (let ((x 'l)) > (let ((f (lambda () x))) > (let ((x 'd)) > (funcall f)))) Yes, I think so too. It was a question for this only 98% serious (and 2% funny) kind of quiz, so I tried to obfuscate a bit what is going on. OTOH using let* I could add the implicit question about how shadowing works in `let*' - that question had been asked just some days ago, so I guess I couldn't withstand. Your form is better to demonstrate the binding aspect. Michael.