From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: Michael Heerdegen via "Emacs development discussions." Newsgroups: gmane.emacs.devel Subject: Re: Add a function for building sort predicates Date: Thu, 01 Feb 2024 19:04:50 +0100 Message-ID: <871q9wvz5p.fsf@web.de> References: <87msskw1u8.fsf@web.de> <87eddw9k5o.fsf@daniel-mendler.de> Reply-To: Michael Heerdegen Mime-Version: 1.0 Content-Type: text/plain Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="26358"; mail-complaints-to="usenet@ciao.gmane.io" User-Agent: Gnus/5.13 (Gnus v5.13) To: emacs-devel@gnu.org Cancel-Lock: sha1:QfNBlTPt3HnN4C3Ory7Whhg5GHE= Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane-mx.org@gnu.org Thu Feb 01 19:05:35 2024 Return-path: Envelope-to: ged-emacs-devel@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 1rVbRP-0006cJ-Fd for ged-emacs-devel@m.gmane-mx.org; Thu, 01 Feb 2024 19:05:35 +0100 Original-Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1rVbQY-0003it-S4; Thu, 01 Feb 2024 13:04:43 -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 1rVbQV-0003iN-9J for emacs-devel@gnu.org; Thu, 01 Feb 2024 13:04:39 -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 1rVbQS-0002oZ-C3 for emacs-devel@gnu.org; Thu, 01 Feb 2024 13:04:38 -0500 Original-Received: from list by ciao.gmane.io with local (Exim 4.92) (envelope-from ) id 1rVbQO-00052S-T1 for emacs-devel@gnu.org; Thu, 01 Feb 2024 19:04:32 +0100 X-Injected-Via-Gmane: http://gmane.org/ Received-SPF: pass client-ip=116.202.254.214; envelope-from=ged-emacs-devel@m.gmane-mx.org; helo=ciao.gmane.io 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=0.248, FREEMAIL_FROM=0.001, HEADER_FROM_DIFFERENT_DOMAINS=0.248, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=no autolearn_force=no X-Spam_action: no action X-BeenThere: emacs-devel@gnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: "Emacs development discussions." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: emacs-devel-bounces+ged-emacs-devel=m.gmane-mx.org@gnu.org Original-Sender: emacs-devel-bounces+ged-emacs-devel=m.gmane-mx.org@gnu.org Xref: news.gmane.io gmane.emacs.devel:315710 Archived-At: Daniel Mendler via "Emacs development discussions." writes: > That's a useful addition. Did you consider creating a macro, which will > lead to a more efficient predicate I did consider that, but I doubt that would lead to significantly more efficient code because... >,or is `make-sort-pred' intended to be used in scenarios with >customizable predicate rules, such that the rules have to be processed >at runtime? the return value is a closure (last few lines in the code) where the processing of the rules already had happened at definition time. Using a macro the code would maybe be 10% faster or so... I thought it would not be worth it. Michael.