(update_frame_1): Handle case that cursor vpos is

out of bounds.

2 files changed, 12 insertions, 1 deletions

diff --git a/src/ChangeLog b/src/ChangeLog
index 7ec49c531c4..e3a423e7eae 100644
--- a/src/ChangeLog
+++ b/src/ChangeLog
@@ -1,3 +1,8 @@
+2000-06-16  Gerd Moellmann  <gerd@gnu.org>
+
+        * dispnew.c (update_frame_1): Handle case that cursor vpos is 
+        out of bounds.
+
 2000-06-15  Eli Zaretskii  <eliz@is.elta.co.il>
 
         * unexec.c (toplevel): Fix last change, so as not to deprive MSDOS
diff --git a/src/dispnew.c b/src/dispnew.c
index c114849bb07..da538cc658e 100644
--- a/src/dispnew.c
+++ b/src/dispnew.c
@@ -4724,7 +4724,13 @@ update_frame_1 (f, force_p, inhibit_id_p)
           /* We have only one cursor on terminal frames.  Use it to
              display the cursor of the selected window.  */
           struct window *w = XWINDOW (FRAME_SELECTED_WINDOW (f));
-          if (w->cursor.vpos >= 0)
+          if (w->cursor.vpos >= 0
+              /* The cursor vpos may be temporarily out of bounds
+                 in the following situation:  There is one window,
+                 with the cursor in the lower half of it.  The window
+                 is split, and a message causes a redisplay before
+                 a new cursor position has been computed.  */
+              && w->cursor.vpos < XFASTINT (w->height))
             {
               int x = WINDOW_TO_FRAME_HPOS (w, w->cursor.hpos);
               int y = WINDOW_TO_FRAME_VPOS (w, w->cursor.vpos);