Fix the row number mistakenly reported by pos_visible_p in rare cases.

 src/xdisp.c (pos_visible_p): Properly save and restore the iterator
 state around the call to line_bottom, since it can move the
 iterator to another screen line.  This fixes off-by-one errors in
 the reported row in some rare cases.

1 files changed, 7 insertions, 0 deletions

diff --git a/src/ChangeLog b/src/ChangeLog
index e834a2cc161..274817d8262 100644
--- a/src/ChangeLog
+++ b/src/ChangeLog
@@ -1,3 +1,10 @@
+2014-09-09  Eli Zaretskii  <eliz@gnu.org>
+
+        * xdisp.c (pos_visible_p): Properly save and restore the iterator
+        state around the call to line_bottom, since it can move the
+        iterator to another screen line.  This fixes off-by-one errors in
+        the reported row in some rare cases.
+
 2014-09-07  Eli Zaretskii  <eliz@gnu.org>
 
         * dispnew.c (prepare_desired_row): When MODE_LINE_P is zero,