[debbugs-tracker] bug#11857: closed (large hscroll values mess up the display)

[GNU bug Tracking System]

Your message dated Thu, 05 Jul 2012 19:29:45 +0300
with message-id <address@hidden>
and subject line Re: bug#11857: large hscroll values mess up the display
has caused the debbugs.gnu.org bug report #11857,
regarding large hscroll values mess up the display
to be marked as done.

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-- 
11857: http://debbugs.gnu.org/cgi/bugreport.cgi?bug=11857
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> --- Begin Message ---
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> Subject: 
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> large hscroll values mess up the display
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> Date: 
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> Wed, 04 Jul 2012 11:15:50 -0700
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> User-agent: 
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> Mozilla/5.0 (X11; Linux i686;	rv:13.0) Gecko/20120615 Thunderbird/13.0.1
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>
>
>
> I tried out large hscroll values and got messed
> up displays.  The exact details vary, depending
> on display and other parameters I don't understand.
> In some cases, even hscroll values well under INT_MAX
> caused problems, but these are harder to reproduce.
>
> One way to easily reproduce the problem on Fedora 15
> x86-64 with Emacs trunk bzr 108872 is to run
> emacs -Q on an X display and type this:
>
> C-u 1 0 0 0 0 0 0 0 0 0 0 C-x < SPC
>
> That is, scroll by 10**10.  This results in a display
> with <- in front of the first four lines, -> after
> the first three lines, and semicolons in the start
> of the first three lines.  It looks like this:
>
> <-;                           ->
> <-;                           ->
> <-;                           ->
> <-
>
> Where "<-" and "->" denote the margin arrows.  This
> is incorrect, as the display should look
> like it does when scrolling by 100, namely, like this:
>
> <-
> <-
> <-
> <-
>
> I also reproduced the problem with Emacs 23.3.1
> (stock Ubuntu 12.04 x86) so this is not a new bug
> nor is it restricted to 64-bit hosts.
>
>
>
> --- End Message ---
> --- Begin Message ---
>
>
>
> Subject: 
>
> Re: bug#11857: large hscroll values mess up the display
>
>
>
>
> Date: 
>
> Thu, 05 Jul 2012 19:29:45 +0300
>
>
>
>
> > Date: Wed, 04 Jul 2012 11:15:50 -0700
> > From: Paul Eggert <address@hidden>
> > 
> > I tried out large hscroll values and got messed
> > up displays.  The exact details vary, depending
> > on display and other parameters I don't understand.
> > In some cases, even hscroll values well under INT_MAX
> > caused problems, but these are harder to reproduce.
> > 
> > One way to easily reproduce the problem on Fedora 15
> > x86-64 with Emacs trunk bzr 108872 is to run
> > emacs -Q on an X display and type this:
> > 
> > C-u 1 0 0 0 0 0 0 0 0 0 0 C-x < SPC
> > 
> > That is, scroll by 10**10.  This results in a display
> > with <- in front of the first four lines, -> after
> > the first three lines, and semicolons in the start
> > of the first three lines.  It looks like this:
> > 
> > <-;                           ->
> > <-;                           ->
> > <-;                           ->
> > <-
> > 
> > Where "<-" and "->" denote the margin arrows.  This
> > is incorrect, as the display should look
> > like it does when scrolling by 100, namely, like this:
> > 
> > <-
> > <-
> > <-
> > <-
> > 
> > I also reproduced the problem with Emacs 23.3.1
> > (stock Ubuntu 12.04 x86) so this is not a new bug
> > nor is it restricted to 64-bit hosts.
>
> Fixed in revisions 108879 and 108880 on the trunk.
>
> I'm closing the bug; feel free to reopen if there are leftovers.
>
> Thanks.
>
>
> --- End Message ---