release: 1.3.138

[lilypond.git] / lily / include / property-iterator.hh

diff --git a/lily/include/property-iterator.hh b/lily/include/property-iterator.hh
index e72a0a894fa332d004def33c2e531e8c9e87cf15..e1ac8ae2aee1d408a6bc99eade864a1c451cf79a 100644 (file)
--- a/lily/include/property-iterator.hh
+++ b/lily/include/property-iterator.hh
@@ -28,6 +28,22 @@ protected:
   virtual void process (Moment);
 };
 
+
+
+
+/**
+  Iterate a property.  
+ */
+class Property_unset_iterator : public Simple_music_iterator
+{
+public:
+  VIRTUAL_COPY_CONS (Music_iterator);
+  static SCM constructor_cxx_function;
+  /* construction */
+protected:
+  virtual void process (Moment);
+};
+
 class Push_property_iterator : public Simple_music_iterator
 {
 public: