X-Git-Url: https://git.donarmstrong.com/?a=blobdiff_plain;f=lily%2Fchord-tremolo-iterator.cc;h=ae9a17eb4674ae184c5507b7a92e7c9f73e81855;hb=33f2e59ea0b2a1ba41e943b5afa29e5fee97ba94;hp=b4d769696810ee5258887f2396e5df0bab655855;hpb=d765f3af45be51f15da55cf570a4b172200e1035;p=lilypond.git

diff --git a/lily/chord-tremolo-iterator.cc b/lily/chord-tremolo-iterator.cc
index b4d7696968..ae9a17eb46 100644
--- a/lily/chord-tremolo-iterator.cc
+++ b/lily/chord-tremolo-iterator.cc
@@ -3,7 +3,7 @@
   
   source file of the GNU LilyPond music typesetter
   
-  (c) 2000--2002 Han-Wen Nienhuys <hanwen@cs.uu.nl>
+  (c) 2000--2003 Han-Wen Nienhuys <hanwen@cs.uu.nl>
   
  */
 
@@ -35,9 +35,12 @@ Chord_tremolo_iterator::Chord_tremolo_iterator (Chord_tremolo_iterator const &sr
   : Music_iterator (src)
 {
   factor_ = src.factor_;
-  child_iter_ = src.child_iter_ ? src.child_iter_->clone () : 0;
-  if (child_iter_)
-    scm_gc_unprotect_object (child_iter_->self_scm());
+  child_iter_ = 0;
+  if (src.child_iter_)
+    {
+      child_iter_ = src.child_iter_->clone ();
+      scm_gc_unprotect_object (child_iter_->self_scm());
+    }
 }
 
 void
@@ -54,6 +57,13 @@ Chord_tremolo_iterator::derived_mark () const
     scm_gc_mark (child_iter_->self_scm());
 }
 
+void
+Chord_tremolo_iterator::derived_substitute (Translator_group*f, Translator_group*t) 
+{
+  if (child_iter_)
+    child_iter_->substitute_outlet (f,t);
+}
+
 void
 Chord_tremolo_iterator::process (Moment m)
 {
@@ -87,7 +97,5 @@ Chord_tremolo_iterator::try_music_in_children (Music  *m) const
   return child_iter_->try_music (m);
 }
 
-
-
 IMPLEMENT_CTOR_CALLBACK (Chord_tremolo_iterator);