X-Git-Url: https://git.donarmstrong.com/?a=blobdiff_plain;f=lily%2Finclude%2Fpaper-score.hh;h=e3d0813b4b0820754390a6356bd97f84ad7950ff;hb=47db9a3883d726ca53e2133a3b2298f78dd6a32e;hp=f980ee154e2fd6d26e8e7cd6993b91af83d23a4e;hpb=08560a1b8076630c4fc6cb9b902614d8b74fd6fc;p=lilypond.git

diff --git a/lily/include/paper-score.hh b/lily/include/paper-score.hh
index f980ee154e..e3d0813b4b 100644
--- a/lily/include/paper-score.hh
+++ b/lily/include/paper-score.hh
@@ -1,7 +1,7 @@
 /*
   This file is part of LilyPond, the GNU music typesetter.
 
-  Copyright (C) 1996--2012 Han-Wen Nienhuys <hanwen@xs4all.nl>
+  Copyright (C) 1996--2015 Han-Wen Nienhuys <hanwen@xs4all.nl>
 
   LilyPond is free software: you can redistribute it and/or modify
   it under the terms of the GNU General Public License as published by
@@ -39,6 +39,13 @@ public:
 
   DECLARE_CLASSNAME (Paper_score);
 
+  static Paper_score *unsmob (SCM ps) {
+    return dynamic_cast <Paper_score *> (Music_output::unsmob (ps));
+  }
+  static bool is_smob (SCM ps) {
+    return Music_output::is_smob (ps) && unsmob (ps);
+  }
+
   Output_def *layout () const;
   System *root_system () const;
 
@@ -54,7 +61,7 @@ protected:
   virtual void derived_mark () const;
 
 private:
-  Paper_score (Paper_score const &);
+  Paper_score (Paper_score const &); // Do not define!  Not copyable!
 };
 
 #endif /* PAPER_SCORE_HH */