procyberian/emacs
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

Fix random crashes while scrolling backwards.

Browse source 
src/xdisp.c (try_cursor_movement): Make sure ROW isn't decremented
 past the beginning of the current glyph matrix.
This commit is contained in:
Eli Zaretskii 2011-10-30 20:07:48 +02:00
parent 6e56383b57
commit c2ff3c02a4
2 changed files with 7 additions and 3 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

5
src/ChangeLog
View file

@ -1,3 +1,8 @@
2011-10-30 Eli Zaretskii <eliz@gnu.org>
* xdisp.c (try_cursor_movement): Make sure ROW isn't decremented
past the beginning of the current glyph matrix.
2011-10-30 Adam Sjøgren <asjo@koldfront.dk> (tiny change)
* xterm.c: Include X11/Xproto.h if HAVE_GTK3.

5
src/xdisp.c
View file

@ -14829,8 +14829,6 @@ try_cursor_movement (Lisp_Object window, struct text_pos startp, int *scroll_ste
bidi-reordered rows. */
while (MATRIX_ROW_CONTINUATION_LINE_P (row))
{
xassert (row->enabled_p);
--row;
/* If we hit the beginning of the displayed portion
without finding the first row of a continued
line, give up. */
@ -14839,7 +14837,8 @@ try_cursor_movement (Lisp_Object window, struct text_pos startp, int *scroll_ste
rc = CURSOR_MOVEMENT_MUST_SCROLL;
break;
}
xassert (row->enabled_p);
--row;
}
}
if (must_scroll)