From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: Stefan Monnier Newsgroups: gmane.emacs.bugs Subject: bug#15880: Compute C declarations for DEFSYMs automatically. Date: Mon, 05 Jan 2015 11:51:04 -0500 Message-ID: References: <5282C8F4.5010806@cs.ucla.edu> <5494D719.4040507@cs.ucla.edu> <5499FFF1.9050106@cs.ucla.edu> NNTP-Posting-Host: plane.gmane.org Mime-Version: 1.0 Content-Type: text/plain X-Trace: ger.gmane.org 1420476738 27119 80.91.229.3 (5 Jan 2015 16:52:18 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Mon, 5 Jan 2015 16:52:18 +0000 (UTC) Cc: 15880@debbugs.gnu.org To: Paul Eggert Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Mon Jan 05 17:52:11 2015 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 1Y8At1-0002P5-3f for geb-bug-gnu-emacs@m.gmane.org; Mon, 05 Jan 2015 17:52:11 +0100 Original-Received: from localhost ([::1]:32988 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1Y8At0-0007Qz-Fg for geb-bug-gnu-emacs@m.gmane.org; Mon, 05 Jan 2015 11:52:10 -0500 Original-Received: from eggs.gnu.org ([2001:4830:134:3::10]:33409) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1Y8Asv-0007Na-MS for bug-gnu-emacs@gnu.org; Mon, 05 Jan 2015 11:52:06 -0500 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1Y8Ass-0002hI-Fv for bug-gnu-emacs@gnu.org; Mon, 05 Jan 2015 11:52:05 -0500 Original-Received: from debbugs.gnu.org ([140.186.70.43]:56474) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1Y8Ass-0002hC-Cw for bug-gnu-emacs@gnu.org; Mon, 05 Jan 2015 11:52:02 -0500 Original-Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.80) (envelope-from ) id 1Y8Ass-00005x-1H for bug-gnu-emacs@gnu.org; Mon, 05 Jan 2015 11:52:02 -0500 X-Loop: help-debbugs@gnu.org Resent-From: Stefan Monnier Original-Sender: "Debbugs-submit" Resent-CC: bug-gnu-emacs@gnu.org Resent-Date: Mon, 05 Jan 2015 16:52:01 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: followup 15880 X-GNU-PR-Package: emacs X-GNU-PR-Keywords: patch Original-Received: via spool by 15880-submit@debbugs.gnu.org id=B15880.1420476695325 (code B ref 15880); Mon, 05 Jan 2015 16:52:01 +0000 Original-Received: (at 15880) by debbugs.gnu.org; 5 Jan 2015 16:51:35 +0000 Original-Received: from localhost ([127.0.0.1]:37607 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.80) (envelope-from ) id 1Y8AsR-00005B-1d for submit@debbugs.gnu.org; Mon, 05 Jan 2015 11:51:35 -0500 Original-Received: from mercure.iro.umontreal.ca ([132.204.24.67]:58871) by debbugs.gnu.org with esmtp (Exim 4.80) (envelope-from ) id 1Y8AsO-000052-Gj for 15880@debbugs.gnu.org; Mon, 05 Jan 2015 11:51:33 -0500 Original-Received: from hidalgo.iro.umontreal.ca (hidalgo.iro.umontreal.ca [132.204.27.50]) by mercure.iro.umontreal.ca (Postfix) with ESMTP id BF70785067; Mon, 5 Jan 2015 11:51:31 -0500 (EST) Original-Received: from lechon.iro.umontreal.ca (lechon.iro.umontreal.ca [132.204.27.242]) by hidalgo.iro.umontreal.ca (Postfix) with ESMTP id F304E1E5874; Mon, 5 Jan 2015 11:51:04 -0500 (EST) Original-Received: by lechon.iro.umontreal.ca (Postfix, from userid 20848) id D2D9FB4057; Mon, 5 Jan 2015 11:51:04 -0500 (EST) In-Reply-To: <5499FFF1.9050106@cs.ucla.edu> (Paul Eggert's message of "Tue, 23 Dec 2014 15:51:13 -0800") User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/25.0.50 (gnu/linux) X-DIRO-MailScanner-Information: Please contact the ISP for more information X-DIRO-MailScanner: Found to be clean X-DIRO-MailScanner-SpamCheck: n'est pas un polluriel, SpamAssassin (score=-2.82, requis 5, autolearn=not spam, ALL_TRUSTED -2.82, MC_TSTLAST 0.00) X-DIRO-MailScanner-From: monnier@iro.umontreal.ca X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.15 Precedence: list X-detected-operating-system: by eggs.gnu.org: GNU/Linux 3.x 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:98038 Archived-At: > Sure. It's easy to create one patch for autogeneration and link-time > constants, and a second patch for making Qnil be zero. Attached. These are > relative to trunk commit e55a467ec0f758c311d358ceb7d66a8a7d9482c3 > dated today. Thanks. I'm worried about: +/* Yield an integer that tags PTR as a symbol. */ +#define TAG_SYMPTR(ptr) TAG_PTR (Lisp_Symbol, (char *) (ptr) - (char *) lispsym) This subtraction can yield a negative number. For the USE_LSB_TAG case, that's not a problem, but for the case where we use the MSB for the tag, a negative number will not have the expected 000 in the MSB. Stefan