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: Is there any difference between `equal' and `string=' for strings? Date: Sat, 21 Aug 2021 02:08:34 +0200 Message-ID: <878s0v8xrx.fsf@zoho.eu> References: <875yw2vxqh.fsf@mbork.pl> <87v941domi.fsf@zoho.eu> <87tujkd46u.fsf@zoho.eu> <87lf4wd3dz.fsf@zoho.eu> <87lf4v90e2.fsf@zoho.eu> <87h7fj8yzt.fsf@zoho.eu> 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="38209"; 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: sha1:7Szf701khQqL6zHP51eV61smcfg= Original-X-From: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane-mx.org@gnu.org Sat Aug 21 02:09:32 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 1mHEZo-0009hP-Js for geh-help-gnu-emacs@m.gmane-mx.org; Sat, 21 Aug 2021 02:09:32 +0200 Original-Received: from localhost ([::1]:38218 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1mHEZm-0003va-G3 for geh-help-gnu-emacs@m.gmane-mx.org; Fri, 20 Aug 2021 20:09:30 -0400 Original-Received: from eggs.gnu.org ([2001:470:142:3::10]:51206) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1mHEZ7-0003vO-Nf for help-gnu-emacs@gnu.org; Fri, 20 Aug 2021 20:08:49 -0400 Original-Received: from ciao.gmane.io ([116.202.254.214]:53052) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1mHEZ6-0001yd-9u for help-gnu-emacs@gnu.org; Fri, 20 Aug 2021 20:08:49 -0400 Original-Received: from list by ciao.gmane.io with local (Exim 4.92) (envelope-from ) id 1mHEZ4-00090M-CE for help-gnu-emacs@gnu.org; Sat, 21 Aug 2021 02:08:46 +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:132631 Archived-At: > "equal-all" - same type _and_ equal data is t, else nil (for > this purpose, the predicates, e.g., `stringp' would imply the > existence of a type) How is it with Lisp, it is dynamically typed, right, and the values, not variables, have type? But what's the real definition of type? (type-of 1) ; integer (type-of 1.0) ; float (type-of t) ; symbol (type-of 'type-of) ; not function, symbol, well, OK (type-of #'type-of) ; still not function, symbol (type-of [1 2 3]) ; vector (type-of "string") ; string (type-of ?a) ; not char, integer, yes (type-of '(1 2 3)) ; not list, cons (type-of nil) ; not list, symbol (type-of '()) ; same (type-of (list)) ; .. ... ? -- underground experts united https://dataswamp.org/~incal