From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!.POSTED!not-for-mail From: Fritz Stelzer 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 15:29:07 +0200 Message-ID: NNTP-Posting-Host: blaine.gmane.org Mime-Version: 1.0 Content-Type: multipart/alternative; boundary="94eb2c129be2db571105599ef5ca" X-Trace: blaine.gmane.org 1505922177 17826 195.159.176.226 (20 Sep 2017 15:42:57 GMT) X-Complaints-To: usenet@blaine.gmane.org NNTP-Posting-Date: Wed, 20 Sep 2017 15:42:57 +0000 (UTC) To: 28527@debbugs.gnu.org Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Wed Sep 20 17:42:52 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 1duh9I-0004Om-0r for geb-bug-gnu-emacs@m.gmane.org; Wed, 20 Sep 2017 17:42:52 +0200 Original-Received: from localhost ([::1]:49007 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1duh9P-0001hO-6A for geb-bug-gnu-emacs@m.gmane.org; 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X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.6.x X-Mailman-Approved-At: Wed, 20 Sep 2017 11:25:41 -0400 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:137171 Archived-At: --94eb2c129be2db571105599ef5ca Content-Type: text/plain; charset="UTF-8" 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. --94eb2c129be2db571105599ef5ca Content-Type: text/html; charset="UTF-8" Content-Transfer-Encoding: quoted-printable
When the argument for char-after is a marker, th= e function gets bytepos from the buffer the marker is pointing to by callin= g marker_byte_position. But then pos_byte is compared to BEGV_BYTE and ZV_B= YTE that use the current buffer. At the end of the function, pos_byte is pa= ssed to FETCH_CHAR, which also operates on the current buffer.
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