From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: Jean Louis Newsgroups: gmane.emacs.help Subject: Re: (*) -> 1 Date: Thu, 19 Jan 2023 11:34:24 +0300 Message-ID: References: <87y1q1kvdm.fsf@web.de> <87h6wpkrlq.fsf@web.de> <87zgahj7h3.fsf@web.de> <878rhzvs1h.fsf@web.de> Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 8bit Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="17878"; mail-complaints-to="usenet@ciao.gmane.io" User-Agent: Mutt/2.2.9+54 (af2080d) (2022-11-21) Cc: help-gnu-emacs@gnu.org To: Michael Heerdegen Original-X-From: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane-mx.org@gnu.org Thu Jan 19 11:00:28 2023 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 1pIRie-0004Rj-7K for geh-help-gnu-emacs@m.gmane-mx.org; Thu, 19 Jan 2023 11:00:28 +0100 Original-Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1pIQtc-0000hS-Fa; Thu, 19 Jan 2023 04:07:44 -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 1pIQta-0000gU-UM for help-gnu-emacs@gnu.org; Thu, 19 Jan 2023 04:07:42 -0500 Original-Received: from stw1.rcdrun.com ([217.170.207.13]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1pIQtX-0003Ye-1d for help-gnu-emacs@gnu.org; Thu, 19 Jan 2023 04:07:40 -0500 Original-Received: from localhost ([::ffff:197.239.7.243]) (AUTH: PLAIN admin, TLS: TLS1.3,256bits,ECDHE_RSA_AES_256_GCM_SHA384) by stw1.rcdrun.com with ESMTPSA id 0000000000103A92.0000000063C9085C.00002434; Thu, 19 Jan 2023 02:07:39 -0700 Mail-Followup-To: Michael Heerdegen , help-gnu-emacs@gnu.org Content-Disposition: inline In-Reply-To: <878rhzvs1h.fsf@web.de> Received-SPF: pass client-ip=217.170.207.13; envelope-from=bugs@gnu.support; helo=stw1.rcdrun.com X-Spam_score_int: -17 X-Spam_score: -1.8 X-Spam_bar: - X-Spam_report: (-1.8 / 5.0 requ) BAYES_00=-1.9, RCVD_IN_SBL=0.141, SPF_HELO_PASS=-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:142388 Archived-At: * Michael Heerdegen [2023-01-18 17:26]: > Jean Louis writes: > > > Otherwise I don't know. Do you know use case for (concat)? > > I have an idea for you: search for potential uses of calls of `*' and/or > `concat' (and maybe more associative functions) with no arguments in the > Emacs sources. They exist and rely on the functions returning the > neutral argument and they are not really obscure. Did you find it? If you did, let me know. I do not know how to find that. Do you wish to say that (concat) ➜ "" yields empty string and that (*) ➜ 1 yields number one only for reason that it becomes easier to Emacs developer to program in C language? In that case reasoning would be awkward. Or do you refer to Lisp? That is what I am searching. -- Jean Take action in Free Software Foundation campaigns: https://www.fsf.org/campaigns In support of Richard M. Stallman https://stallmansupport.org/