Re: Truncating scroll runs that copy to where we copied to

[YAMAMOTO Mitsuharu]

>>>>> On Tue, 22 Nov 2011 03:25:03 -0500, Eli Zaretskii <address@hidden> said:

>> 2011-05-21 YAMAMOTO Mitsuharu <address@hidden>
>> 
>> * dispnew.c (scrolling_window): Don't exclude the case that the
>> last enabled row in the desired matrix touches the bottom boundary.

> Yes, I've seen that.  What problem was it supposed to fix?  Is there
> a test case?

As I told, the problem was

>> That code had not taken effect for most cases (especially when
>> there's no partially visible row at the bottom)

A test case is the same one as what I gave in this thread: with Emacs
23.3a, which doesn't include the above change, you don't observe the
display bug, but instead you can observe that scrolling_window returns
early at `return 0;', though it can reuse the existing display
contents.

                                     YAMAMOTO Mitsuharu
                                address@hidden