From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: "Jan D." Newsgroups: gmane.emacs.devel Subject: Re: Problem report #24 Date: Tue, 11 Apr 2006 09:00:38 +0200 Message-ID: <443B5416.20301@swipnet.se> References: <200604101850.k3AIo62n005320@scanner2.ics.uci.edu> NNTP-Posting-Host: main.gmane.org Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit X-Trace: sea.gmane.org 1144738889 16219 80.91.229.2 (11 Apr 2006 07:01:29 GMT) X-Complaints-To: usenet@sea.gmane.org NNTP-Posting-Date: Tue, 11 Apr 2006 07:01:29 +0000 (UTC) Cc: emacs-devel@gnu.org Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Tue Apr 11 09:01:27 2006 Return-path: Envelope-to: ged-emacs-devel@m.gmane.org Original-Received: from lists.gnu.org ([199.232.76.165]) by ciao.gmane.org with esmtp (Exim 4.43) id 1FTCsM-0002Xg-7v for ged-emacs-devel@m.gmane.org; Tue, 11 Apr 2006 09:01:22 +0200 Original-Received: from localhost ([127.0.0.1] helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1FTCsL-0006QA-T8 for ged-emacs-devel@m.gmane.org; Tue, 11 Apr 2006 03:01:21 -0400 Original-Received: from mailman by lists.gnu.org with tmda-scanned (Exim 4.43) id 1FTCrh-0006EP-Uu for emacs-devel@gnu.org; Tue, 11 Apr 2006 03:00:42 -0400 Original-Received: from exim by lists.gnu.org with spam-scanned (Exim 4.43) id 1FTCrg-0006Di-JV for emacs-devel@gnu.org; Tue, 11 Apr 2006 03:00:41 -0400 Original-Received: from [199.232.76.173] (helo=monty-python.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1FTCrg-0006Dd-9X for emacs-devel@gnu.org; Tue, 11 Apr 2006 03:00:40 -0400 Original-Received: from [213.50.74.197] (helo=smtp.operax.com) by monty-python.gnu.org with smtp (Exim 4.52) id 1FTCwU-0007J3-6k for emacs-devel@gnu.org; Tue, 11 Apr 2006 03:05:38 -0400 Original-Received: (qmail 99707 invoked by uid 0); 11 Apr 2006 07:00:38 -0000 Original-Received: from dentan.operax.com (HELO ?192.168.1.48?) (192.168.1.48) by treo.operax.com with SMTP; 11 Apr 2006 07:00:38 -0000 User-Agent: Thunderbird 1.5 (X11/20051201) Original-To: Stefan Monnier In-Reply-To: X-BeenThere: emacs-devel@gnu.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: "Emacs development discussions." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Original-Sender: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Errors-To: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Xref: news.gmane.org gmane.emacs.devel:52643 Archived-At: Stefan Monnier wrote: >> Event assign_zero: Variable "f" assigned value 0. >> Also see events: [var_deref_model] > >> 3022 f = NULL; >> 3023 face = Qnil; >> 3024 } >> 3025 >> 3026 /* Determine the width standard for comparison with the fonts we find. */ >> 3027 > >> At conditional (1): "face == Qnil" taking false path > >> 3028 if (NILP (face)) >> 3029 size = 0; >> 3030 else >> 3031 { >> 3032 /* This is of limited utility since it works with character >> 3033 widths. Keep it for compatibility. --gerd. */ > >> Event var_deref_model: Variable "f" tracked as NULL was passed to a function that dereferences it. [model] >> Also see events: [assign_zero] > > If f is NULL, then face=Qnil, so the false path of face==Qnil won't > be taken. > face could be Qnil upon entry to the function? Jan D.