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: problems with Emacs 28 Date: Tue, 27 Oct 2020 11:22:06 +0100 Message-ID: <87eelkvui9.fsf@web.de> References: <87lffwhop1.fsf@zoho.eu> <87r1poddpj.fsf@zoho.eu> <87pn58gdnj.fsf@web.de> <3cec75b0-410b-40c7-97c3-d04667c4c04d@default> <877drea4gb.fsf@web.de> <10bfb59d-23a2-4fb8-8bc6-105ffd486edd@default> <87sga0o6k0.fsf@zoho.eu> Mime-Version: 1.0 Content-Type: text/plain Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="37830"; 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:mlKY+sDX6OXIq8p4vcsxFBl9BG4= Original-X-From: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane-mx.org@gnu.org Tue Oct 27 11:24:47 2020 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 1kXM9m-0009iV-CY for geh-help-gnu-emacs@m.gmane-mx.org; Tue, 27 Oct 2020 11:24:46 +0100 Original-Received: from localhost ([::1]:54414 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1kXM9k-0004QN-FQ for geh-help-gnu-emacs@m.gmane-mx.org; Tue, 27 Oct 2020 06:24:45 -0400 Original-Received: from eggs.gnu.org ([2001:470:142:3::10]:60712) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1kXM7M-0001lc-OE for help-gnu-emacs@gnu.org; Tue, 27 Oct 2020 06:22:18 -0400 Original-Received: from static.214.254.202.116.clients.your-server.de ([116.202.254.214]:50674 helo=ciao.gmane.io) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1kXM7L-0008SH-4o for help-gnu-emacs@gnu.org; Tue, 27 Oct 2020 06:22:16 -0400 Original-Received: from list by ciao.gmane.io with local (Exim 4.92) (envelope-from ) id 1kXM7H-0006yq-WD for help-gnu-emacs@gnu.org; Tue, 27 Oct 2020 11:22:12 +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-detected-operating-system: by eggs.gnu.org: First seen = 2020/10/27 06:22:12 X-ACL-Warn: Detected OS = Linux 2.2.x-3.x [generic] [fuzzy] 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=0.25, 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: 2.1.23 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:124731 Archived-At: Emanuel Berg via Users list for the GNU Emacs text editor writes: > destructive - changes the value in the actual argument variables. > It would seem this requires "call by name" or "call by reference", not > "call by value", right? (Unless the value is a memory location, > perhaps...) "Might change a passed value". This is possible in Elisp when the value is a sequence for example (unless the value is nil - remember your not-in-place problem?). `setcar' receives a cons value and modifies it. Eieio objects and even closures are other examples. Michael.