From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: Newsgroups: gmane.emacs.help Subject: Re: Closures - do you understand them well? Date: Fri, 9 Dec 2022 20:50:14 +0100 Message-ID: References: <87lenh7vrn.fsf@web.de> <87tu25d77o.fsf@gnu.org> <87h6y5pt8k.fsf@web.de> <87bkodpqnk.fsf@web.de> <87k030tlfh.fsf@web.de> Mime-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="z3Xlm0Enl8UkmSck" Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="37133"; mail-complaints-to="usenet@ciao.gmane.io" To: help-gnu-emacs@gnu.org Original-X-From: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane-mx.org@gnu.org Fri Dec 09 20:51:00 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 1p3jOc-0009JC-JY for geh-help-gnu-emacs@m.gmane-mx.org; Fri, 09 Dec 2022 20:50:58 +0100 Original-Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1p3jOH-0006Ac-8x; Fri, 09 Dec 2022 14:50:37 -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 1p3jNz-00069l-FC for help-gnu-emacs@gnu.org; Fri, 09 Dec 2022 14:50:27 -0500 Original-Received: from mail.tuxteam.de ([5.199.139.25]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1p3jNx-0003t9-AQ for help-gnu-emacs@gnu.org; Fri, 09 Dec 2022 14:50:18 -0500 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=tuxteam.de; s=mail; h=From:In-Reply-To:Content-Type:MIME-Version:References:Message-ID: Subject:To:Date:Sender:Reply-To:Cc:Content-Transfer-Encoding:Content-ID: Content-Description:Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc :Resent-Message-ID:List-Id:List-Help:List-Unsubscribe:List-Subscribe: List-Post:List-Owner:List-Archive; bh=eippsxNgq38tsBSLniVV7V5B/TLn4yNSBANibwMsIc8=; b=g449K9f7hXT7/w2wX3o9bDQslf X/K5npMd7WUFQiAPVRsnXVZaZwWRmzCgZvFKzRa86fdEIXL5mWZr/OAkJ8SD0LghOASu2yf5Eh/y6 nAhN7hi3WAPRfJL0lvZ9RmybGTK97OpU2JraToYXgyGmUYrW+fKOJJqQVNrtqU/8spGvWA8AYvBA6 z2nQMXpJOMVWKENfZVJDNIyytDWMXs8Ai4CmtFd3kP9RDLvdh81EPzQwzA0orAGJA1vsNy+tJ2C6Y I/zTSldGQjUIraATBbJdDmGSU9C9hd1R7kPVCqA2BlcJta+fl2p3nek/2j06zdu2D74iDTtSafZzu YhTloBwA==; Original-Received: from tomas by mail.tuxteam.de with local (Exim 4.94.2) (envelope-from ) id 1p3jNv-0001O7-09 for help-gnu-emacs@gnu.org; Fri, 09 Dec 2022 20:50:15 +0100 Content-Disposition: inline In-Reply-To: <87k030tlfh.fsf@web.de> Received-SPF: pass client-ip=5.199.139.25; envelope-from=tomas@tuxteam.de; helo=mail.tuxteam.de X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham 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:141525 Archived-At: --z3Xlm0Enl8UkmSck Content-Type: text/plain; charset=utf-8 Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Fri, Dec 09, 2022 at 08:40:50PM +0100, Michael Heerdegen wrote: > writes: >=20 > > So I learnt something from the riddle, after all [1]. >=20 > Cool that there was something to learn for some people. It was enjoyable, yes :) > The second part of the exercise is now of course (this goes to > everyone): how to "fix" the code so that what some people expected is > the end result?...: >=20 > Write an expression that returns a list of 100 functions accepting zero > arguments. `funcall'ing the Nth function must return N. Use a `while' > loop or whatever you like but please not `dolist' or any tool that > already handles this "problem" specifically. Hm. I imagine in the middle of my code "fred's function factory", like so: (defun fred-s-function-factory (n) ...) (i won't tell more now ;) > > [1] The most general rule seems still to be: "all generalisations > > suck" >=20 > I think this is the first instance of Russell's paradox I have ever met > in real life. Then I would like you to meet my barber... Cheers --=20 t --z3Xlm0Enl8UkmSck Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- iF0EABECAB0WIQRp53liolZD6iXhAoIFyCz1etHaRgUCY5ORdgAKCRAFyCz1etHa RiirAJsHDtVIh4E2heUyC25LXiSKJEiAqgCeKmOzKRvu3elAuGJk0f42V5za5q0= =sVHE -----END PGP SIGNATURE----- --z3Xlm0Enl8UkmSck--