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#8219: Effect of deletions on indirect buffers (Bug#8219) Date: Sat, 12 Mar 2011 15:47:05 -0500 Message-ID: References: <877hc5bfqy.fsf@stupidchicken.com> <838vwlto85.fsf@gnu.org> <83wrk4soee.fsf@gnu.org> NNTP-Posting-Host: lo.gmane.org Mime-Version: 1.0 Content-Type: text/plain X-Trace: dough.gmane.org 1299964135 21966 80.91.229.12 (12 Mar 2011 21:08:55 GMT) X-Complaints-To: usenet@dough.gmane.org NNTP-Posting-Date: Sat, 12 Mar 2011 21:08:55 +0000 (UTC) Cc: cyd@stupidchicken.com, 8219@debbugs.gnu.org, emacs-devel@gnu.org To: Eli Zaretskii Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Sat Mar 12 22:08:50 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 1PyW3N-0007om-9P for geb-bug-gnu-emacs@m.gmane.org; Sat, 12 Mar 2011 22:08:49 +0100 Original-Received: from localhost ([127.0.0.1]:50423 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1PyW1j-00087s-9m for geb-bug-gnu-emacs@m.gmane.org; Sat, 12 Mar 2011 16:07:07 -0500 Original-Received: from [140.186.70.92] (port=51479 helo=eggs.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1PyW1a-00086n-Cs for bug-gnu-emacs@gnu.org; Sat, 12 Mar 2011 16:06:59 -0500 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1PyW1Y-0006Qe-Vq for bug-gnu-emacs@gnu.org; Sat, 12 Mar 2011 16:06:58 -0500 Original-Received: from debbugs.gnu.org ([140.186.70.43]:50358) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1PyW1Y-0006Qa-T2 for bug-gnu-emacs@gnu.org; Sat, 12 Mar 2011 16:06:56 -0500 Original-Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.69) (envelope-from ) id 1PyVjG-0004G4-7l; Sat, 12 Mar 2011 15:48:02 -0500 X-Loop: help-debbugs@gnu.org Resent-From: Stefan Monnier Original-Sender: debbugs-submit-bounces@debbugs.gnu.org Resent-To: owner@debbugs.gnu.org Resent-CC: bug-gnu-emacs@gnu.org Resent-Date: Sat, 12 Mar 2011 20:48:02 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: followup 8219 X-GNU-PR-Package: emacs X-GNU-PR-Keywords: Original-Received: via spool by 8219-submit@debbugs.gnu.org id=B8219.129996283416312 (code B ref 8219); Sat, 12 Mar 2011 20:48:02 +0000 Original-Received: (at 8219) by debbugs.gnu.org; 12 Mar 2011 20:47:14 +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 1PyViU-0004F2-Lk for submit@debbugs.gnu.org; Sat, 12 Mar 2011 15:47:14 -0500 Original-Received: from ironport2-out.teksavvy.com ([206.248.154.181] helo=ironport2-out.pppoe.ca) by debbugs.gnu.org with esmtp (Exim 4.69) (envelope-from ) id 1PyViR-0004Ep-Rl for 8219@debbugs.gnu.org; Sat, 12 Mar 2011 15:47:12 -0500 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: AvsEAM9qe03O+IG+/2dsb2JhbACmQnjAGoViBIUrkCE X-IronPort-AV: E=Sophos;i="4.62,308,1297054800"; d="scan'208";a="96051585" Original-Received: from 206-248-129-190.dsl.teksavvy.com (HELO pastel.home) ([206.248.129.190]) by ironport2-out.pppoe.ca with ESMTP/TLS/ADH-AES256-SHA; 12 Mar 2011 15:47:06 -0500 Original-Received: by pastel.home (Postfix, from userid 20848) id D9E1259047; Sat, 12 Mar 2011 15:47:05 -0500 (EST) In-Reply-To: <83wrk4soee.fsf@gnu.org> (Eli Zaretskii's message of "Sat, 12 Mar 2011 11:01:45 +0200") User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/24.0.50 (gnu/linux) X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.11 Precedence: list Resent-Date: Sat, 12 Mar 2011 15:48:02 -0500 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:44948 Archived-At: > It follows that BUF_PT, when used on other than the current buffer > should update PT if necessary, if that buffer is an indirect buffer, > before returning the value. And the same with BUF_BEGV, BUF_ZV, etc. > Right? Yes. At least that was my conclusion last time we bumped into such a bug. I even added a comment in buffer.h about it: /* !!!FIXME: all the BUF_BEGV/BUF_ZV/BUF_PT macros are flawed: on indirect (or base) buffers, that value is only correct if that buffer is the current_buffer, or if the buffer's text hasn't been modified (via an indirect buffer) since it was last current. */ Stefan