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Re: Debugging printing to stderr prior glyph row values ....
From: |
Eli Zaretskii |
Subject: |
Re: Debugging printing to stderr prior glyph row values .... |
Date: |
Fri, 24 May 2019 09:45:44 +0300 |
> Date: Thu, 23 May 2019 17:03:36 -0700
> From: Keith David Bershatsky <address@hidden>
> Cc: address@hidden
>
> I got it to crash ... again. "pgrowx previous_row" from gdb prints nothing
> and returns to a new gdb command prompt.
This means the previous glyph row had its 'used' member equal to zero.
> [CAVEAT: I wanted a crash, so I did not insert a test for the 'used' member
> being greater than zero.]
And it shows:
> (gdb) print *previous_row
> $3 = {
> glyphs = {0x11a800000, 0x11a800000, 0x11a803520, 0x11a803520},
> used = {0, 0, 0, 0},
See? all of the 'used' members are zero. IOW, there are no glyphs in
that row.