Received: from mx0.gmx.net (mx0.gmx.net [213.165.64.100]) by h1439878.stratoserver.net (8.14.2/8.14.2/Debian-2build1) with SMTP id o1C0crlR005681 for ; Fri, 12 Feb 2010 01:38:54 +0100 Received: (qmail 31626 invoked by alias); 12 Feb 2010 00:38:48 -0000 Delivered-To: GMX delivery to rainer.schoepf@gmx.net Received: (qmail invoked by alias); 12 Feb 2010 00:38:47 -0000 Received: from relay.uni-heidelberg.de (EHLO relay.uni-heidelberg.de) [129.206.100.212] by mx0.gmx.net (mx106) with SMTP; 12 Feb 2010 01:38:47 +0100 Received: from listserv.uni-heidelberg.de (listserv.uni-heidelberg.de [129.206.100.94]) by relay.uni-heidelberg.de (8.14.1/8.14.1) with ESMTP id o1C0ZuaW019380 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO); Fri, 12 Feb 2010 01:35:57 +0100 Received: from listserv.uni-heidelberg.de (localhost.localdomain [127.0.0.1]) by listserv.uni-heidelberg.de (8.13.1/8.13.1) with ESMTP id o1BN15Fm010347; Fri, 12 Feb 2010 01:35:50 +0100 Received: by LISTSERV.UNI-HEIDELBERG.DE (LISTSERV-TCP/IP release 16.0) with spool id 377206 for LATEX-L@LISTSERV.UNI-HEIDELBERG.DE; Fri, 12 Feb 2010 01:35:50 +0100 Received: from relay2.uni-heidelberg.de (relay2.uni-heidelberg.de [129.206.210.211]) by listserv.uni-heidelberg.de (8.13.1/8.13.1) with ESMTP id o1C0ZoOQ017326 for ; Fri, 12 Feb 2010 01:35:50 +0100 Received: from mail-yw0-f174.google.com (mail-yw0-f174.google.com [209.85.211.174]) by relay2.uni-heidelberg.de (8.13.8/8.13.8) with ESMTP id o1C0Zj4M007775 for ; Fri, 12 Feb 2010 01:35:49 +0100 Received: by ywh4 with SMTP id 4so1791474ywh.10 for ; Thu, 11 Feb 2010 16:35:45 -0800 (PST) Received: by 10.150.128.22 with SMTP id a22mr1327568ybd.304.1265934945480; Thu, 11 Feb 2010 16:35:45 -0800 (PST) Received: from ?129.127.15.244? ([129.127.15.244]) by mx.google.com with ESMTPS id 4sm1175670ywi.9.2010.02.11.16.35.43 (version=TLSv1/SSLv3 cipher=RC4-MD5); Thu, 11 Feb 2010 16:35:44 -0800 (PST) Content-Type: text/plain; charset=us-ascii Mime-Version: 1.0 (Apple Message framework v1077) References: <4B88913F-0580-460A-B813-AC1F7E92CD92@yahoo.de> <4B7459F2.9040103@morningstar2.co.uk> X-Mailer: Apple Mail (2.1077) X-Spam-Whitelist: Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from quoted-printable to 8bit by listserv.uni-heidelberg.de id o1C0ZoOQ017327 Message-ID: Date: Fri, 12 Feb 2010 11:05:39 +1030 Reply-To: Mailing list for the LaTeX3 project Sender: Mailing list for the LaTeX3 project From: Will Robertson Subject: Re: Scratch variables To: LATEX-L@listserv.uni-heidelberg.de In-Reply-To: <4B7459F2.9040103@morningstar2.co.uk> Precedence: list List-Help: , List-Unsubscribe: List-Subscribe: List-Owner: List-Archive: X-GMX-Antispam: 0 (Mail was not recognized as spam); Detail=5D7Q89H36p4WX0t+AtsdW7yLAyG7gjsvbuMBW1+iOcuX20PnIgZYSReJ2t5I3NmC7otWg svnvgvOP+eSmr2tc2TDb1dCoki7/0rILdCQ5J8e1Y1XT96mqS95amITWUgb1/CuXllYP54VpvjTX ujdQw==V1; X-Resent-By: Forwarder X-Resent-For: rainer.schoepf@gmx.net X-Resent-To: rainer@rainer-schoepf.de X-Scanned-By: MIMEDefang 2.63 on 85.214.41.38 Status: R X-Status: X-Keywords: X-UID: 6257 On 12/02/2010, at 5:56 AM, Joseph Wright wrote: > On 11/02/2010 18:26, Philipp Stephani wrote: >> >> I wonder what the guarantees about the scratch variables like \l_tmpa_tl are. The documentation just states that "they are not used by conditionals or predicate functions." Does this mean that any other kernel macro might modify them? > > A quick search shows they are used in the tl module. I'd stick to defining "private" scratch variables. Should we change this? I.e., use \l_kernel_tmpa_tl or \l_reserveda_tl instead for us and let package writers use \l_tmpa_tl ? -- Will