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 q0TDV8mO029931 for ; Sun, 29 Jan 2012 14:31:09 +0100 Received: (qmail 8057 invoked by alias); 29 Jan 2012 13:31:03 -0000 Delivered-To: GMX delivery to rainer.schoepf@gmx.net Received: (qmail invoked by alias); 29 Jan 2012 13:31:03 -0000 Received: from relay2.uni-heidelberg.de (EHLO relay2.uni-heidelberg.de) [129.206.210.211] by mx0.gmx.net (mx009) with SMTP; 29 Jan 2012 14:31:03 +0100 Received: from listserv.uni-heidelberg.de (listserv.uni-heidelberg.de [129.206.100.94]) by relay2.uni-heidelberg.de (8.13.8/8.13.8) with ESMTP id q0TDT5S4012687 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO); Sun, 29 Jan 2012 14:29:05 +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 q0T876QN002175; Sun, 29 Jan 2012 14:29:04 +0100 Received: by LISTSERV.UNI-HEIDELBERG.DE (LISTSERV-TCP/IP release 16.0) with spool id 1935993 for LATEX-L@LISTSERV.UNI-HEIDELBERG.DE; Sun, 29 Jan 2012 14:29:04 +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 q0TDT4Xv017687 for ; Sun, 29 Jan 2012 14:29:04 +0100 Received: from anchor-msapost-1.mail.demon.net (anchor-msapost-1.mail.demon.net [195.173.77.164]) by relay2.uni-heidelberg.de (8.13.8/8.13.8) with ESMTP id q0TDSnLp012632 for ; Sun, 29 Jan 2012 14:28:52 +0100 Received: from morningstar2.demon.co.uk ([80.176.134.7] helo=palladium.local) by anchor-post-1.mail.demon.net with esmtpsa (AUTH morningstar2) (TLSv1:AES256-SHA:256) (Exim 4.69) id 1RrUoK-0003W4-io for LATEX-L@LISTSERV.UNI-HEIDELBERG.DE; Sun, 29 Jan 2012 13:28:48 +0000 User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.6; rv:9.0) Gecko/20111222 Thunderbird/9.0.1 MIME-Version: 1.0 References: X-Enigmail-Version: 1.3.4 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Message-ID: <4F254990.5050407@morningstar2.co.uk> Date: Sun, 29 Jan 2012 13:28:48 +0000 Reply-To: Mailing list for the LaTeX3 project Sender: Mailing list for the LaTeX3 project From: Joseph Wright Subject: Re: Unexpandability inside \csname To: LATEX-L@listserv.uni-heidelberg.de In-Reply-To: Precedence: list List-Help: , List-Unsubscribe: List-Subscribe: List-Owner: List-Archive: X-GMX-Antispam: 0 (Sender is in whitelist: joseph.wright@MORNINGSTAR2.CO.UK); Detail=5D7Q89H36p4L00VTXC6D4q0N+AH0PUCnBi0P5cROEGjO+pG7NAH/K+tf9SrVFtpLrKONl 2T9EL4W4U4jgzLbnCcGpk1z/zwmKT/K1fv3lD0=V1; X-Resent-By: Forwarder X-Resent-For: rainer.schoepf@gmx.net X-Resent-To: rainer@rainer-schoepf.de Status: R X-Status: X-Keywords: X-UID: 6997 Hello Bruno, On 29/01/2012 13:17, Bruno Le Floch wrote: > Perhaps you meant > > \csname\ifnum 3>2\fi\endcsname > > which indeeds does \csname\relax\endcsname, an error. We should be fine here in expl3, I think, as internally we have something like \csname\ifnum\numexpr3\relax>\numexpr2\relax\fi\endcsname in this scenario, and that is fine. -- Joseph Wright