From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: Emanuel Berg Newsgroups: gmane.emacs.help Subject: Re: Easy to add with push but not to the end of a list Date: Tue, 29 Nov 2022 06:32:25 +0100 Message-ID: <87pmd6pbpy.fsf@dataswamp.org> References: <878rju96i5.fsf@dataswamp.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="4026"; mail-complaints-to="usenet@ciao.gmane.io" User-Agent: Gnus/5.13 (Gnus v5.13) To: help-gnu-emacs@gnu.org Cancel-Lock: sha1:FrqiRr6VVyFr2An8XsjW3vvv9oc= Original-X-From: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane-mx.org@gnu.org Wed Nov 30 14:50:42 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 1p0NU1-0000pv-Ds for geh-help-gnu-emacs@m.gmane-mx.org; Wed, 30 Nov 2022 14:50:41 +0100 Original-Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1p0NSw-0007zo-2c; Wed, 30 Nov 2022 08:49:34 -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 1oztES-00030y-92 for help-gnu-emacs@gnu.org; Tue, 29 Nov 2022 00:32:36 -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 1oztEQ-0006OD-SK for help-gnu-emacs@gnu.org; Tue, 29 Nov 2022 00:32:36 -0500 Original-Received: from list by ciao.gmane.io with local (Exim 4.92) (envelope-from ) id 1oztEO-0002Kk-QD for help-gnu-emacs@gnu.org; Tue, 29 Nov 2022 06:32:32 +0100 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: -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-Mailman-Approved-At: Wed, 30 Nov 2022 08:49:32 -0500 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:141261 Archived-At: tomas wrote: >> The bad idea comment disregards necessity... > > Q "But I /want/ to hit this nail into the wall with a spoon!" > > A "You can try. But please, do it in your living room. And > oh, with your own spoon" > > Programming is somewhere between engineering and craft. > In these realms, you usually try to think about what tools > are appropriate for a job. > > Singly linked lists are a tool. They are simple, > lightweight, and appropriate for keeping things in sequence, > and for adding things at the front. Not at the end. Yes, but there is, for example, `last'. Why do we have that if that is O(n) and not O(1) as is `car'? Why car _and_ last while at the same time `push' _and not_ "push-last"? -- underground experts united https://dataswamp.org/~incal