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: Sat, 19 Jun 2021 01:55:07 +0200 Message-ID: <87mtrm3ezo.fsf@zoho.eu> References: <87zgvs2bup.fsf@zoho.eu> <87y2bby1kr.fsf@zoho.eu> <20210615091834.GB24886@tuxteam.de> <87im2ewr3k.fsf@zoho.eu> <20210616072819.GB17919@tuxteam.de> <87r1h1vk0q.fsf@zoho.eu> <87tulxu4bc.fsf@zoho.eu> <877dits73y.fsf@zoho.eu> <20210617075433.GA19264@tuxteam.de> 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="13562"; 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:cQaRkVe179rWeILP9dJTB3ESUTM= Original-X-From: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane-mx.org@gnu.org Sat Jun 19 02:00:55 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 1luOPv-0003Ih-2I for geh-help-gnu-emacs@m.gmane-mx.org; Sat, 19 Jun 2021 02:00:55 +0200 Original-Received: from localhost ([::1]:49974 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1luOPt-0002jP-P3 for geh-help-gnu-emacs@m.gmane-mx.org; Fri, 18 Jun 2021 20:00:53 -0400 Original-Received: from eggs.gnu.org ([2001:470:142:3::10]:40978) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1luOP7-0002j1-0h for help-gnu-emacs@gnu.org; Fri, 18 Jun 2021 20:00:05 -0400 Original-Received: from ciao.gmane.io ([116.202.254.214]:44142) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1luOP5-0006FD-IF for help-gnu-emacs@gnu.org; Fri, 18 Jun 2021 20:00:04 -0400 Original-Received: from list by ciao.gmane.io with local (Exim 4.92) (envelope-from ) id 1luOP3-0002Rr-V9 for help-gnu-emacs@gnu.org; Sat, 19 Jun 2021 02:00:01 +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:131000 Archived-At: tomas wrote: >> deep copy = actual copy >> >> shallow copy = copy of references? > > Assignment = copy at depth 0 > Shallow copy = copy at depth 1 > ... > 42 copy = copy at depth 42 > ... > Deep copy = copy at depth infinite But regardless of whatever, why copy something at all? If it is there there already, I mean? So destructive use of `nreverse' and `nconc' won't screw it up? Wow... -- underground experts united https://dataswamp.org/~incal