From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: Paul Eggert Newsgroups: gmane.emacs.bugs Subject: bug#12381: Assume C89 or later for math functions. Date: Sat, 08 Sep 2012 12:05:32 -0700 Organization: UCLA Computer Science Department Message-ID: <504B96FC.806@cs.ucla.edu> References: <504A578E.2070207@cs.ucla.edu> <83oblhgfg4.fsf@gnu.org> <504B64C9.7080901@cs.ucla.edu> <83d31wmrqo.fsf@gnu.org> <504B7E40.9090408@cornell.edu> NNTP-Posting-Host: plane.gmane.org Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit X-Trace: ger.gmane.org 1347131144 31408 80.91.229.3 (8 Sep 2012 19:05:44 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Sat, 8 Sep 2012 19:05:44 +0000 (UTC) Cc: 12381@debbugs.gnu.org To: Ken Brown Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Sat Sep 08 21:05:46 2012 Return-path: Envelope-to: geb-bug-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 1TAQLg-0003nI-Hp for geb-bug-gnu-emacs@m.gmane.org; Sat, 08 Sep 2012 21:05:44 +0200 Original-Received: from localhost ([::1]:41607 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1TAQLd-00010F-0A for geb-bug-gnu-emacs@m.gmane.org; Sat, 08 Sep 2012 15:05:41 -0400 Original-Received: from eggs.gnu.org ([208.118.235.92]:33159) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1TAQLa-0000zc-Tq for bug-gnu-emacs@gnu.org; Sat, 08 Sep 2012 15:05:39 -0400 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1TAQLZ-0007Ps-VI for bug-gnu-emacs@gnu.org; Sat, 08 Sep 2012 15:05:38 -0400 Original-Received: from debbugs.gnu.org ([140.186.70.43]:39486) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1TAQLZ-0007Po-Ry for bug-gnu-emacs@gnu.org; Sat, 08 Sep 2012 15:05:37 -0400 Original-Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.72) (envelope-from ) id 1TAQLy-0002BR-AL for bug-gnu-emacs@gnu.org; Sat, 08 Sep 2012 15:06:02 -0400 X-Loop: help-debbugs@gnu.org Resent-From: Paul Eggert Original-Sender: debbugs-submit-bounces@debbugs.gnu.org Resent-CC: bug-gnu-emacs@gnu.org Resent-Date: Sat, 08 Sep 2012 19:06:02 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: followup 12381 X-GNU-PR-Package: emacs X-GNU-PR-Keywords: patch Original-Received: via spool by 12381-submit@debbugs.gnu.org id=B12381.13471311608385 (code B ref 12381); Sat, 08 Sep 2012 19:06:02 +0000 Original-Received: (at 12381) by debbugs.gnu.org; 8 Sep 2012 19:06:00 +0000 Original-Received: from localhost ([127.0.0.1]:49032 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.72) (envelope-from ) id 1TAQLv-0002BC-AE for submit@debbugs.gnu.org; Sat, 08 Sep 2012 15:05:59 -0400 Original-Received: from smtp.cs.ucla.edu ([131.179.128.62]:44473) by debbugs.gnu.org with esmtp (Exim 4.72) (envelope-from ) id 1TAQLs-0002B3-Vo for 12381@debbugs.gnu.org; Sat, 08 Sep 2012 15:05:57 -0400 Original-Received: from localhost (localhost.localdomain [127.0.0.1]) by smtp.cs.ucla.edu (Postfix) with ESMTP id E560239E800D; Sat, 8 Sep 2012 12:05:31 -0700 (PDT) X-Virus-Scanned: amavisd-new at smtp.cs.ucla.edu Original-Received: from smtp.cs.ucla.edu ([127.0.0.1]) by localhost (smtp.cs.ucla.edu [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id 0Cccrc5WPVSC; Sat, 8 Sep 2012 12:05:31 -0700 (PDT) Original-Received: from [192.168.1.3] (pool-108-23-119-2.lsanca.fios.verizon.net [108.23.119.2]) by smtp.cs.ucla.edu (Postfix) with ESMTPSA id 959FB39E800A; Sat, 8 Sep 2012 12:05:31 -0700 (PDT) User-Agent: Mozilla/5.0 (X11; Linux i686; rv:15.0) Gecko/20120827 Thunderbird/15.0 In-Reply-To: <504B7E40.9090408@cornell.edu> X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.13 Precedence: list X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.6 (newer, 2) 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: , Errors-To: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Original-Sender: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Xref: news.gmane.org gmane.emacs.bugs:63968 Archived-At: On 09/08/2012 10:20 AM, Ken Brown wrote: > Is there a C program I could run that would answer your question? Sure, run this: #include int main (void) { return pow (0, 0) != 1; } If the matherr problem is present, the program will print something on stderr, coming from the library. If not, the program will exit silently. On Ubuntu it exits with status 0, which is what POSIX requires, though pow's exact return value doesn't really matter here -- the point is that pow should not write to stderr.