From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: Emanuel Berg via Users list for the GNU Emacs text editor Newsgroups: gmane.emacs.help Subject: Re: [External] : Re: Appending lists Date: Wed, 16 Jun 2021 19:03:01 +0200 Message-ID: <8735thvj22.fsf@zoho.eu> References: Reply-To: Emanuel Berg Mime-Version: 1.0 Content-Type: text/plain Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="24299"; 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:CH6NXEfZN4W0nUKMDvvlgxsP5cY= Original-X-From: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane-mx.org@gnu.org Wed Jun 16 19:06:12 2021 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 1ltYzT-00069A-Vw for geh-help-gnu-emacs@m.gmane-mx.org; Wed, 16 Jun 2021 19:06:11 +0200 Original-Received: from localhost ([::1]:60006 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1ltYzT-0002Mj-05 for geh-help-gnu-emacs@m.gmane-mx.org; Wed, 16 Jun 2021 13:06:11 -0400 Original-Received: from eggs.gnu.org ([2001:470:142:3::10]:47884) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1ltYyS-0002Lu-HG for help-gnu-emacs@gnu.org; Wed, 16 Jun 2021 13:05:14 -0400 Original-Received: from ciao.gmane.io ([116.202.254.214]:41744) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1ltYyO-00053u-7x for help-gnu-emacs@gnu.org; Wed, 16 Jun 2021 13:05:06 -0400 Original-Received: from list by ciao.gmane.io with local (Exim 4.92) (envelope-from ) id 1ltYyM-0004WK-Bd for help-gnu-emacs@gnu.org; Wed, 16 Jun 2021 19:05:02 +0200 X-Injected-Via-Gmane: http://gmane.org/ Mail-Followup-To: help-gnu-emacs@gnu.org Mail-Copies-To: never 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: -16 X-Spam_score: -1.7 X-Spam_bar: - X-Spam_report: (-1.7 / 5.0 requ) BAYES_00=-1.9, 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: 2.1.23 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:130914 Archived-At: Drew Adams wrote: >> The variable does not change but its value apparently >> change > > What does it mean for a variable's value to change? Does it > mean that the variable points to (returns) a different > value? Or does it mean that the value (itself) that it > points to, changes? [...] I'm starting to think this box diagram would be helpful, didn't one do a minimal example case with `nreverse' (or `nconc'), i.e. the fewest number of lists and list elements possible, and then draw a box diagram to show what happens? I can do it in ASCII tonight, God willing, but I find it hard to think that no one did it already? -- underground experts united https://dataswamp.org/~incal