[Emacs-diffs] Changes to emacs/src/xdisp.c,v

[Kim F. Storm]

CVSROOT:        /cvsroot/emacs
Module name:    emacs
Changes by:     Kim F. Storm <kfstorm>  06/09/20 09:43:18

Index: xdisp.c
===================================================================
RCS file: /cvsroot/emacs/emacs/src/xdisp.c,v
retrieving revision 1.1121
retrieving revision 1.1122
diff -u -b -r1.1121 -r1.1122
--- xdisp.c     14 Sep 2006 09:37:44 -0000      1.1121
+++ xdisp.c     20 Sep 2006 09:43:18 -0000      1.1122
@@ -1275,6 +1275,7 @@
 
 
 /* Return 1 if position CHARPOS is visible in window W.
+   CHARPOS < 0 means return info about WINDOW_END position.
    If visible, set *X and *Y to pixel coordinates of top left corner.
    Set *RTOP and *RBOT to pixel height of an invisible area of glyph at POS.
    Set *ROWH and *VPOS to row's visible height and VPOS (row number).  */
@@ -1313,10 +1314,10 @@
 
   start_display (&it, w, top);
   move_it_to (&it, charpos, -1, it.last_visible_y-1, -1,
-             MOVE_TO_POS | MOVE_TO_Y);
+             (charpos >= 0 ? MOVE_TO_POS : 0) | MOVE_TO_Y);
 
   /* Note that we may overshoot because of invisible text.  */
-  if (IT_CHARPOS (it) >= charpos)
+  if (charpos >= 0 && IT_CHARPOS (it) >= charpos)
     {
       int top_x = it.current_x;
       int top_y = it.current_y;