From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!.POSTED!not-for-mail From: Andreas Schwab Newsgroups: gmane.emacs.devel Subject: Re: [PATCH] Implement letrec without backquote? Date: Sat, 05 Nov 2016 11:21:08 +0100 Message-ID: <87oa1uw7l7.fsf@linux-m68k.org> References: <878tszkuvf.fsf@gmail.com> NNTP-Posting-Host: blaine.gmane.org Mime-Version: 1.0 Content-Type: text/plain X-Trace: blaine.gmane.org 1478341310 20682 195.159.176.226 (5 Nov 2016 10:21:50 GMT) X-Complaints-To: usenet@blaine.gmane.org NNTP-Posting-Date: Sat, 5 Nov 2016 10:21:50 +0000 (UTC) User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/25.1 (gnu/linux) Cc: John Wiegley , Emacs developers To: Tino Calancha Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Sat Nov 05 11:21:46 2016 Return-path: Envelope-to: ged-emacs-devel@m.gmane.org Original-Received: from lists.gnu.org ([208.118.235.17]) by blaine.gmane.org with esmtp (Exim 4.84_2) (envelope-from ) id 1c2y6C-0001cx-QC for ged-emacs-devel@m.gmane.org; Sat, 05 Nov 2016 11:21:20 +0100 Original-Received: from localhost ([::1]:44073 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1c2y6F-0000sq-Oi for ged-emacs-devel@m.gmane.org; Sat, 05 Nov 2016 06:21:23 -0400 Original-Received: from eggs.gnu.org ([2001:4830:134:3::10]:43413) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1c2y69-0000se-74 for emacs-devel@gnu.org; Sat, 05 Nov 2016 06:21:18 -0400 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1c2y66-0003yu-31 for emacs-devel@gnu.org; Sat, 05 Nov 2016 06:21:17 -0400 Original-Received: from mail-out.m-online.net ([212.18.0.9]:32932) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1c2y65-0003wd-Sd for emacs-devel@gnu.org; Sat, 05 Nov 2016 06:21:14 -0400 Original-Received: from frontend01.mail.m-online.net (unknown [192.168.8.182]) by mail-out.m-online.net (Postfix) with ESMTP id 3t9vqp3nK3z3hjHX; Sat, 5 Nov 2016 11:21:10 +0100 (CET) Original-Received: from localhost (dynscan1.mnet-online.de [192.168.6.68]) by mail.m-online.net (Postfix) with ESMTP id 3t9vqp3PKczvkGV; Sat, 5 Nov 2016 11:21:10 +0100 (CET) X-Virus-Scanned: amavisd-new at mnet-online.de Original-Received: from mail.mnet-online.de ([192.168.8.182]) by localhost (dynscan1.mail.m-online.net [192.168.6.68]) (amavisd-new, port 10024) with ESMTP id fxHjcDWXRfLT; Sat, 5 Nov 2016 11:21:09 +0100 (CET) X-Auth-Info: Wsp1VAto8RWviRXmvQJS9jXuouKzYmyn+vov5OSlc/vJwag7XTT/m09XJ2T0v1Mc Original-Received: from igel.home (ppp-88-217-24-168.dynamic.mnet-online.de [88.217.24.168]) (using TLSv1 with cipher DHE-RSA-CAMELLIA256-SHA (256/256 bits)) (No client certificate requested) by mail.mnet-online.de (Postfix) with ESMTPSA; Sat, 5 Nov 2016 11:21:09 +0100 (CET) Original-Received: by igel.home (Postfix, from userid 1000) id ADA382C387E; Sat, 5 Nov 2016 11:21:08 +0100 (CET) X-Yow: I know things about TROY DONAHUE that can't even be PRINTED!! In-Reply-To: (Tino Calancha's message of "Sat, 5 Nov 2016 18:05:55 +0900 (JST)") X-detected-operating-system: by eggs.gnu.org: GNU/Linux 3.x X-Received-From: 212.18.0.9 X-BeenThere: emacs-devel@gnu.org X-Mailman-Version: 2.1.21 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.org@gnu.org Original-Sender: "Emacs-devel" Xref: news.gmane.org gmane.emacs.devel:209180 Archived-At: On Nov 05 2016, Tino Calancha wrote: > Also, i wanted to expand in just one setq call, that is, instead of > (setq x 1) (setq y 2) ... (setq foo N) > like this: > (setq x 1 y 2 ... foo N) > > But, it seems it's doesn't bring a better efficiency. That's because setq is a bytecode primitive, and both variants are compiled to the same byte code. Andreas. -- Andreas Schwab, schwab@linux-m68k.org GPG Key fingerprint = 58CA 54C7 6D53 942B 1756 01D3 44D5 214B 8276 4ED5 "And now for something completely different."