From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: Eli Zaretskii Newsgroups: gmane.emacs.bugs Subject: bug#8435: misuse of error ("...%d...", ...) on 64-bit hosts Date: Sun, 10 Apr 2011 01:19:25 -0400 Message-ID: References: <4D9CC60D.2090301@cs.ucla.edu> <4D9D68D8.6060200@cs.ucla.edu> <8339ltvrok.fsf@gnu.org> <4D9E21FB.70802@cs.ucla.edu> <83vcypt8zf.fsf@gnu.org> <4D9F9B74.6050908@cs.ucla.edu> <83d3kvubzp.fsf@gnu.org> <4DA0A448.7000203@cs.ucla.edu> <83tye7s2cf.fsf@gnu.org> <4DA0B60F.6010909@cs.ucla.edu> <83pqovrxap.fsf@gnu.org> Reply-To: Eli Zaretskii NNTP-Posting-Host: lo.gmane.org X-Trace: dough.gmane.org 1302413859 15268 80.91.229.12 (10 Apr 2011 05:37:39 GMT) X-Complaints-To: usenet@dough.gmane.org NNTP-Posting-Date: Sun, 10 Apr 2011 05:37:39 +0000 (UTC) Cc: eggert@cs.ucla.edu, 8435@debbugs.gnu.org To: Stefan Monnier Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Sun Apr 10 07:37:35 2011 Return-path: Envelope-to: geb-bug-gnu-emacs@m.gmane.org Original-Received: from lists.gnu.org ([199.232.76.165]) by lo.gmane.org with esmtp (Exim 4.69) (envelope-from ) id 1Q8nL1-0006Gm-7K for geb-bug-gnu-emacs@m.gmane.org; Sun, 10 Apr 2011 07:37:32 +0200 Original-Received: from localhost ([127.0.0.1]:44949 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1Q8nKz-0000Fe-QX for geb-bug-gnu-emacs@m.gmane.org; Sun, 10 Apr 2011 01:37:29 -0400 Original-Received: from [140.186.70.92] (port=37473 helo=eggs.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1Q8nKq-0000FZ-Si for bug-gnu-emacs@gnu.org; Sun, 10 Apr 2011 01:37:21 -0400 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1Q8nKp-0000Zf-K2 for bug-gnu-emacs@gnu.org; Sun, 10 Apr 2011 01:37:20 -0400 Original-Received: from debbugs.gnu.org ([140.186.70.43]:45496) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1Q8nKp-0000ZZ-HM for bug-gnu-emacs@gnu.org; Sun, 10 Apr 2011 01:37:19 -0400 Original-Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.69) (envelope-from ) id 1Q8n46-0000qs-VN; Sun, 10 Apr 2011 01:20:03 -0400 X-Loop: help-debbugs@gnu.org Resent-From: Eli Zaretskii Original-Sender: debbugs-submit-bounces@debbugs.gnu.org Resent-To: owner@debbugs.gnu.org Resent-CC: bug-gnu-emacs@gnu.org Resent-Date: Sun, 10 Apr 2011 05:20:02 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: followup 8435 X-GNU-PR-Package: emacs X-GNU-PR-Keywords: Original-Received: via spool by 8435-submit@debbugs.gnu.org id=B8435.13024127873251 (code B ref 8435); Sun, 10 Apr 2011 05:20:02 +0000 Original-Received: (at 8435) by debbugs.gnu.org; 10 Apr 2011 05:19:47 +0000 Original-Received: from localhost ([127.0.0.1] helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.69) (envelope-from ) id 1Q8n3r-0000qO-8i for submit@debbugs.gnu.org; Sun, 10 Apr 2011 01:19:47 -0400 Original-Received: from fencepost.gnu.org ([140.186.70.10]) by debbugs.gnu.org with esmtp (Exim 4.69) (envelope-from ) id 1Q8n3a-0000px-Eh for 8435@debbugs.gnu.org; Sun, 10 Apr 2011 01:19:46 -0400 Original-Received: from eliz by fencepost.gnu.org with local (Exim 4.71) (envelope-from ) id 1Q8n3V-0003Rm-2m; Sun, 10 Apr 2011 01:19:25 -0400 In-reply-to: (message from Stefan Monnier on Sun, 10 Apr 2011 00:52:09 -0300) X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.11 Precedence: list Resent-Date: Sun, 10 Apr 2011 01:20:02 -0400 X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.6 (newer, 3) X-Received-From: 140.186.70.43 X-BeenThere: bug-gnu-emacs@gnu.org List-Id: "Bug reports for GNU Emacs, the Swiss army knife of text editors" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Original-Sender: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Errors-To: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Xref: news.gmane.org gmane.emacs.bugs:45727 Archived-At: > From: Stefan Monnier > Cc: Paul Eggert , 8435@debbugs.gnu.org > Date: Sun, 10 Apr 2011 00:52:09 -0300 > > If the problematic case can be detected easily, that's good enough. What would you suggest to do if we detect it? To recap, this is in the context of `message' or `error' called to produce a message about something. > I don't understand the problem enough (haven't dug into it yet) to know > if that's the case. There are two issues: . %c used to display a non-ASCII character, when the data points to a multibyte sequence. doprnt converts the data to a wide character, when it displays the message, vsnprintf does not. . If the buffer supplied to doprnt is too small, it takes care to truncate the text only on character boundaries, whereas vsnprintf will not.