Fix 'vertical-motion' in non-interactive sessions

* src/indent.c (Fvertical_motion): Don't return uninitialized
value in non-interactive session.  This fixes random errors in
batch mode, see
http://lists.gnu.org/archive/html/emacs-devel/2016-06/msg00609.html
and
http://lists.gnu.org/archive/html/emacs-devel/2016-07/msg00500.html
for the details.

diff --git a/src/indent.c b/src/indent.c
index 0ef8903501d6d43a977cddf8685f36fa3cb211db..578dac83df5da8ec7cb760e9a792dc31534bc93f 100644 (file)
--- a/src/indent.c
+++ b/src/indent.c
@@ -2027,6 +2027,7 @@ whether or not it is currently displayed in some window.  */)
       struct position pos;
       pos = *vmotion (PT, PT_BYTE, XINT (lines), w);
       SET_PT_BOTH (pos.bufpos, pos.bytepos);
+      it.vpos = pos.vpos;
     }
   else
     {