From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: Richard Stallman Newsgroups: gmane.emacs.devel Subject: Re: Installing cond* in core Date: Mon, 05 Feb 2024 22:49:07 -0500 Message-ID: References: Reply-To: rms@gnu.org Content-Type: text/plain; charset=Utf-8 Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="4715"; mail-complaints-to="usenet@ciao.gmane.io" Cc: acm@muc.de, emacs-devel@gnu.org To: Stefan Monnier Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane-mx.org@gnu.org Tue Feb 06 04:49:58 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 1rXCT8-00011W-A8 for ged-emacs-devel@m.gmane-mx.org; Tue, 06 Feb 2024 04:49:58 +0100 Original-Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1rXCSO-0000zY-5c; Mon, 05 Feb 2024 22:49:12 -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 1rXCSM-0000yz-57 for emacs-devel@gnu.org; Mon, 05 Feb 2024 22:49:10 -0500 Original-Received: from fencepost.gnu.org ([2001:470:142:3::e]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1rXCSK-0004KB-Oi; Mon, 05 Feb 2024 22:49:08 -0500 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=gnu.org; s=fencepost-gnu-org; h=Date:References:Subject:In-Reply-To:To:From: mime-version; bh=Mo8S882qSXN5Jbc558k9tzxmfoaZJidRSdLH94PWOkk=; b=HK3vM68e5K8J O3xjFlMt/K1qjtE2wh7lnk3I6kNnC6ZC7wIBOMu9H5GHVHu5CrYQcJ90xtmhaUBHjpopGVjtiZHCF /66k8i+SQSzyXvB5pie5tA3OM83xdhaK8TDhyWgAwBB2QnIW3iiKj/2NELd5tMEv6CUhXA34TTtZ1 R9mhLk0d0zxbIEGODQR8HKHeEaC3ouc9uggXPqHvCbugdVS2WLA1JyNPMQqabwULcsznxeYzXvISB 0tFmdNjnKlDh8DypYjJ3uxIxu4tL6iwQJmv6YUn+ihQZYCX99eDIJTZPfsS6cJICthfTI/HZwxMpY 61pke3wg8vIcIRfNuBZSqA==; Original-Received: from rms by fencepost.gnu.org with local (Exim 4.90_1) (envelope-from ) id 1rXCSJ-0001vB-Kh; Mon, 05 Feb 2024 22:49:07 -0500 In-Reply-To: (message from Stefan Monnier on Sun, 04 Feb 2024 09:12:40 -0500) 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:315913 Archived-At: [[[ To any NSA and FBI agents reading my email: please consider ]]] [[[ whether defending the US Constitution against all enemies, ]]] [[[ foreign or domestic, requires you to follow Snowden's example. ]]] > When matching EXP against patterns PAT1..PATn, Pcase is careful to share > the common part of those patterns in the resulting code, so that the > resulting code will not test (consp EXP) more than once, for example. Now I understand. It is a good optimization. -- Dr Richard Stallman (https://stallman.org) Chief GNUisance of the GNU Project (https://gnu.org) Founder, Free Software Foundation (https://fsf.org) Internet Hall-of-Famer (https://internethalloffame.org)