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From: Michael Welsh Duggan <mwd@cert.org>
To: Eli Zaretskii <eliz@gnu.org>
Cc: ari.roponen@gmail.com, 11464@debbugs.gnu.org
Subject: bug#11464: 24.1.50; pos-visible-in-window-p returns a false positive with bidi text
Date: Thu, 17 May 2012 17:22:36 -0400	[thread overview]
Message-ID: <tnthavelcyr.fsf@waterbuck.yellow.cert.org> (raw)
In-Reply-To: <83fwayo6mz.fsf@gnu.org> (Eli Zaretskii's message of "Fri, 18 May 2012 00:11:00 +0300")

Eli Zaretskii <eliz@gnu.org> writes:

>> From: Michael Welsh Duggan <mwd@cert.org>
>> Cc: Ari Roponen <ari.roponen@gmail.com>, 11464@debbugs.gnu.org
>> Date: Thu, 17 May 2012 13:56:45 -0400
>> 
>>   else if (top_y < it.last_visible_y) ==> if (255 < 256) ==> if (TRUE)
>> 
>> hence, visible_p _would_ be set to 1 by the else if clause.
>
> And will never be reset to zero, because 27 <= 256 => FALSE.  And yet
> Ari said that he needed to change the condition to <=.

But where do you get 27?  The number was 270, I believe.

>> bottom_y = 270
>> it.last_visible_y = 256
>> top_y = 255
>> window_top_y = 0

-- 
Michael Welsh Duggan
(mwd@cert.org)





  reply	other threads:[~2012-05-17 21:22 UTC|newest]

Thread overview: 24+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-05-13 15:54 bug#11464: 24.1.50; pos-visible-in-window-p returns a false positive with bidi text Ari Roponen
2012-05-13 18:26 ` Eli Zaretskii
2012-05-15 10:07   ` Ari Roponen
2012-05-15 16:19     ` Eli Zaretskii
2012-05-16  5:21       ` Ari Roponen
2012-05-16 15:15         ` Eli Zaretskii
2012-05-17  4:52           ` Ari Roponen
2012-05-17 16:23             ` Eli Zaretskii
2012-05-17 17:54               ` Ari Roponen
2012-05-17 17:56               ` Michael Welsh Duggan
2012-05-17 21:11                 ` Eli Zaretskii
2012-05-17 21:22                   ` Michael Welsh Duggan [this message]
2012-05-18  7:42                     ` Eli Zaretskii
2012-05-18  8:03                       ` Ari Roponen
2012-05-18  8:26                         ` Ari Roponen
2012-05-18  8:44                         ` Eli Zaretskii
2012-05-18 10:47                           ` Ari Roponen
2012-05-18 11:32                             ` Eli Zaretskii
2012-05-18 11:47                               ` Ari Roponen
2012-05-18 14:02                                 ` Eli Zaretskii
2012-05-18 14:39                                   ` Ari Roponen
2012-05-18 14:59                                     ` Eli Zaretskii
2012-05-19 12:26                                     ` Eli Zaretskii
2012-05-19 12:32                                       ` Ari Roponen

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