From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!.POSTED!not-for-mail From: Eli Zaretskii Newsgroups: gmane.emacs.bugs Subject: bug#28527: unexpected behaviour of char-after if argument is marker that don't point to the current buffer Date: Wed, 20 Sep 2017 18:51:27 +0300 Message-ID: <83efr1fjwg.fsf@gnu.org> References: Reply-To: Eli Zaretskii NNTP-Posting-Host: blaine.gmane.org X-Trace: blaine.gmane.org 1505925120 6783 195.159.176.226 (20 Sep 2017 16:32:00 GMT) X-Complaints-To: usenet@blaine.gmane.org NNTP-Posting-Date: Wed, 20 Sep 2017 16:32:00 +0000 (UTC) Cc: 28527@debbugs.gnu.org To: Fritz Stelzer Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Wed Sep 20 18:31:56 2017 Return-path: Envelope-to: geb-bug-gnu-emacs@m.gmane.org Original-Received: from lists.gnu.org ([208.118.235.17]) by blaine.gmane.org with esmtp (Exim 4.84_2) (envelope-from ) id 1duhuh-0001Mw-HY for geb-bug-gnu-emacs@m.gmane.org; Wed, 20 Sep 2017 18:31:51 +0200 Original-Received: from localhost ([::1]:49609 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1duhuo-0008IP-S2 for geb-bug-gnu-emacs@m.gmane.org; Wed, 20 Sep 2017 12:31:58 -0400 Original-Received: from eggs.gnu.org ([2001:4830:134:3::10]:57667) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1duhIG-0000sm-5a for bug-gnu-emacs@gnu.org; Wed, 20 Sep 2017 11:52:09 -0400 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1duhIB-0008Gr-3L for bug-gnu-emacs@gnu.org; Wed, 20 Sep 2017 11:52:08 -0400 Original-Received: from debbugs.gnu.org ([208.118.235.43]:41695) by eggs.gnu.org with esmtps (TLS1.0:RSA_AES_128_CBC_SHA1:16) (Exim 4.71) (envelope-from ) id 1duhIA-0008Fp-JK for bug-gnu-emacs@gnu.org; Wed, 20 Sep 2017 11:52:02 -0400 Original-Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.84_2) (envelope-from ) id 1duhI9-00056h-Vp for bug-gnu-emacs@gnu.org; Wed, 20 Sep 2017 11:52:02 -0400 X-Loop: help-debbugs@gnu.org Resent-From: Eli Zaretskii Original-Sender: "Debbugs-submit" Resent-CC: bug-gnu-emacs@gnu.org Resent-Date: Wed, 20 Sep 2017 15:52:01 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: followup 28527 X-GNU-PR-Package: emacs X-GNU-PR-Keywords: Original-Received: via spool by 28527-submit@debbugs.gnu.org id=B28527.150592271319611 (code B ref 28527); Wed, 20 Sep 2017 15:52:01 +0000 Original-Received: (at 28527) by debbugs.gnu.org; 20 Sep 2017 15:51:53 +0000 Original-Received: from localhost ([127.0.0.1]:50375 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1duhI0-00056E-LL for submit@debbugs.gnu.org; Wed, 20 Sep 2017 11:51:52 -0400 Original-Received: from eggs.gnu.org ([208.118.235.92]:37882) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1duhHy-000563-VN for 28527@debbugs.gnu.org; Wed, 20 Sep 2017 11:51:51 -0400 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1duhHm-0007ZA-Tb for 28527@debbugs.gnu.org; Wed, 20 Sep 2017 11:51:43 -0400 Original-Received: from fencepost.gnu.org ([2001:4830:134:3::e]:43272) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1duhHl-0007Wt-R8; Wed, 20 Sep 2017 11:51:38 -0400 Original-Received: from 84.94.185.246.cable.012.net.il ([84.94.185.246]:3723 helo=home-c4e4a596f7) by fencepost.gnu.org with esmtpsa (TLS1.2:RSA_AES_256_CBC_SHA1:256) (Exim 4.82) (envelope-from ) id 1duhHk-0004K4-Sw; Wed, 20 Sep 2017 11:51:37 -0400 In-reply-to: (message from Fritz Stelzer on Wed, 20 Sep 2017 15:29:07 +0200) X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] X-Received-From: 208.118.235.43 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" Xref: news.gmane.org gmane.emacs.bugs:137182 Archived-At: > X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00,FREEMAIL_FROM, > HTML_MESSAGE,RP_MATCHES_RCVD,T_DKIM_INVALID autolearn=disabled version=3.3.2 > Resent-From: Fritz Stelzer > Original-Sender: "Debbugs-submit" > Resent-CC: bug-gnu-emacs@gnu.org > Resent-Sender: help-debbugs@gnu.org > From: Fritz Stelzer > Date: Wed, 20 Sep 2017 15:29:07 +0200 > > When the argument for char-after is a marker, the function gets bytepos from the buffer the marker is pointing > to by calling marker_byte_position. But then pos_byte is compared to BEGV_BYTE and ZV_BYTE that use the > current buffer. At the end of the function, pos_byte is passed to FETCH_CHAR, which also operates on the > current buffer. This is according to the documentation, which explicitly says the position is looked up in the current buffer. So this sounds like an intentional and documented behavior.