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Article #98772Bug in Emacs 18.57 xdisp.c / display_text_line()
From: Roland Bergler
Date: Wed, 10 Apr 1991 10:07
Date: Wed, 10 Apr 1991 10:07
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1599 bytes
I think i found a bug in emacs.18.57, I'm running SCO unix V r3.vr2 on an 386 using gcc1.39. consider a line containing a character code >\200 at a position near the end of line, with the display "\xxx" overlapping the end of line. It is possible that display_text_line will overwrite the terminating 0 character at the position behind the line, which isn't set to 0 again. This will destroy the state that the character before the next line has to be 0, an assumption made by function update_line(), where obody[-1] has to be 0. Im not shure, why i cant reproduce this bug for sure, but a good way to get the effect is to edit a binary file, i.e. translated emacs or ..o - file, and then scroll around for a little while. I didnt fix the bug till now, 'cause I'm quite shure that you will have a much better solution than me. Could you please send me a fix??? thanx in advance roland
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X-Google-Language: ENGLISH,ASCII-7-bit X-Google-Thread: fb2f1,38a0b0ce352b54de,start X-Google-Attributes: gidfb2f1,public X-Google-ArrivalTime: 1991-04-10 03:07:00 PST Path: arc1-ca.pugleaf.net!gmdzi!unido!mcsun!uunet!dg-rtp!rock.concert.net!mcnc!stanford.edu!decwrl!ucbvax!tut.cis.ohio-state.edu!unreplyable!garbage From: bergler@informatik.tu-muenchen.dbp.de (Roland Bergler) Newsgroups: gnu.emacs.bug Subject: Bug in Emacs 18.57 xdisp.c / display_text_line() Message-ID: <9104101007.AA06620(a)kiss.informatik.tu-muenchen.de> Date: 10 Apr 91 10:07:00 GMT Sender: daemon@tut.cis.ohio-state.edu Distribution: gnu Organization: GNUs Not Usenet Lines: 20 Approved: bug-gnu-emacs@prep.ai.mit.edu