From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: Drew Adams Newsgroups: gmane.emacs.help Subject: RE: What does "lacks a prefix" mean? Date: Thu, 9 Jul 2015 17:33:30 -0700 (PDT) Message-ID: <60644083-db64-4b56-9f43-e2b461138d83@default> References: <<1e0ad02f-ca3e-495c-bb85-61f77090d31d@googlegroups.com> <87bnfmqzn2.fsf@kuiper.lan.informatimago.com> <87io9ui67a.fsf@nl106-137-147.student.uu.se> > <> NNTP-Posting-Host: plane.gmane.org Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: quoted-printable X-Trace: ger.gmane.org 1436488446 3915 80.91.229.3 (10 Jul 2015 00:34:06 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Fri, 10 Jul 2015 00:34:06 +0000 (UTC) To: Barry Margolin , help-gnu-emacs@gnu.org Original-X-From: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane.org@gnu.org Fri Jul 10 02:33:54 2015 Return-path: Envelope-to: geh-help-gnu-emacs@m.gmane.org Original-Received: from lists.gnu.org ([208.118.235.17]) by plane.gmane.org with esmtp (Exim 4.69) (envelope-from ) id 1ZDMGG-0006YB-Vf for geh-help-gnu-emacs@m.gmane.org; Fri, 10 Jul 2015 02:33:53 +0200 Original-Received: from localhost ([::1]:42418 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1ZDMGG-00080G-65 for geh-help-gnu-emacs@m.gmane.org; Thu, 09 Jul 2015 20:33:52 -0400 Original-Received: from eggs.gnu.org ([2001:4830:134:3::10]:37780) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1ZDMG3-0007zy-TP for help-gnu-emacs@gnu.org; Thu, 09 Jul 2015 20:33:40 -0400 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1ZDMFz-0003LR-2t for help-gnu-emacs@gnu.org; Thu, 09 Jul 2015 20:33:39 -0400 Original-Received: from userp1040.oracle.com ([156.151.31.81]:34237) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1ZDMFy-0003LG-S3 for help-gnu-emacs@gnu.org; Thu, 09 Jul 2015 20:33:35 -0400 Original-Received: from aserv0022.oracle.com (aserv0022.oracle.com [141.146.126.234]) by userp1040.oracle.com (Sentrion-MTA-4.3.2/Sentrion-MTA-4.3.2) with ESMTP id t6A0XVT5015833 (version=TLSv1 cipher=DHE-RSA-AES256-SHA bits=256 verify=OK); Fri, 10 Jul 2015 00:33:32 GMT Original-Received: from aserv0121.oracle.com (aserv0121.oracle.com [141.146.126.235]) by aserv0022.oracle.com (8.13.8/8.13.8) with ESMTP id t6A0XVYQ027682 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=FAIL); Fri, 10 Jul 2015 00:33:31 GMT Original-Received: from abhmp0007.oracle.com (abhmp0007.oracle.com [141.146.116.13]) by aserv0121.oracle.com (8.13.8/8.13.8) with ESMTP id t6A0XVt8017362; Fri, 10 Jul 2015 00:33:31 GMT In-Reply-To: <> X-Priority: 3 X-Mailer: Oracle Beehive Extensions for Outlook 2.0.1.9 (901082) [OL 12.0.6691.5000 (x86)] X-Source-IP: aserv0022.oracle.com [141.146.126.234] X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.4.x-2.6.x [generic] X-Received-From: 156.151.31.81 X-BeenThere: help-gnu-emacs@gnu.org X-Mailman-Version: 2.1.14 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.org@gnu.org Original-Sender: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane.org@gnu.org Xref: news.gmane.org gmane.emacs.help:105572 Archived-At: > > And non-parallelizable theoretically :) >=20 > Regular let isn't parallelizable. It specifies that the value > expressions are evaluated in order. >=20 > The only difference between the two is the environment within which > later expressions are evaluated. FWIW, Common Lisp specifies that "let performs the bindings in parallel and let* does them sequentially." That is theoretical, just a restatement that `let' bindings are independent. But it means that yes, they *could* be evaluated in parallel (because they are independent).