X-Git-Url: https://git.donarmstrong.com/?a=blobdiff_plain;f=lily%2Fmusic-wrapper.cc;h=3e6a7d7c0b34518bcf1d9fa19098f2b635c5a622;hb=4d7ee80a3a8f4f44a67529745e51804316faa733;hp=456af661cc339379d0e9d30150584be71002789c;hpb=75eebcb49e52d296b1da3e1074e0825d2c780db4;p=lilypond.git

diff --git a/lily/music-wrapper.cc b/lily/music-wrapper.cc
index 456af661cc..3e6a7d7c0b 100644
--- a/lily/music-wrapper.cc
+++ b/lily/music-wrapper.cc
@@ -3,7 +3,7 @@
 
   source file of the GNU LilyPond music typesetter
 
-  (c) 1998--2006 Han-Wen Nienhuys <hanwen@xs4all.nl>
+  (c) 1998--2009 Han-Wen Nienhuys <hanwen@xs4all.nl>
 */
 
 #include "music-wrapper.hh"
@@ -16,7 +16,10 @@ Music_wrapper::start_callback (SCM m)
 {
   Music *me = unsmob_music (m);
   Music *elt = unsmob_music (me->get_property ("element"));
-  return elt->start_mom ().smobbed_copy ();
+  if (elt)
+    return elt->start_mom ().smobbed_copy ();
+  else
+    return Moment ().smobbed_copy ();
 }
 
 MAKE_SCHEME_CALLBACK (Music_wrapper, length_callback, 1);
@@ -25,6 +28,9 @@ Music_wrapper::length_callback (SCM m)
 {
   Music *me = unsmob_music (m);
   Music *elt = unsmob_music (me->get_property ("element"));
-  return elt->get_length ().smobbed_copy ();
+  if (elt)
+    return elt->get_length ().smobbed_copy ();
+  else
+    return Moment (0).smobbed_copy ();
 }