X-Git-Url: https://git.donarmstrong.com/?a=blobdiff_plain;f=lily%2Finclude%2Fpitch-interval.hh;h=e067590f526a6bee0dfb3761eca73bc0f004562f;hb=856ae980b25d1d99c1e847985bed8b61c061e02f;hp=ab8b51eddea35ec20853c5b4c2df9a89144eee67;hpb=16cb456cabf477f6d398ff731aa0f10b60913394;p=lilypond.git

diff --git a/lily/include/pitch-interval.hh b/lily/include/pitch-interval.hh
index ab8b51edde..e067590f52 100644
--- a/lily/include/pitch-interval.hh
+++ b/lily/include/pitch-interval.hh
@@ -1,9 +1,20 @@
 /*
-  pitch-interval.hh -- declare Pitch_interval
+  This file is part of LilyPond, the GNU music typesetter.
 
-  source file of the GNU LilyPond music typesetter
+  Copyright (C) 2004--2012 Han-Wen Nienhuys <hanwen@xs4all.nl>
 
-  (c) 2004--2007 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
+  the Free Software Foundation, either version 3 of the License, or
+  (at your option) any later version.
+
+  LilyPond is distributed in the hope that it will be useful,
+  but WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+  GNU General Public License for more details.
+
+  You should have received a copy of the GNU General Public License
+  along with LilyPond.  If not, see <http://www.gnu.org/licenses/>.
 */
 
 #ifndef PITCH_INTERVAL_HH
@@ -16,7 +27,16 @@ class Pitch_interval : public Drul_array<Pitch>
 public:
   Pitch_interval ();
   Pitch_interval (Pitch, Pitch);
-  void add_point (Pitch);
+  Drul_array<bool> add_point (Pitch);
+  bool is_empty () const;
+};
+
+class Pitch_lexicographic_interval : public Drul_array<Pitch>
+{
+public:
+  Pitch_lexicographic_interval ();
+  Pitch_lexicographic_interval (Pitch, Pitch);
+  Drul_array<bool> add_point (Pitch);
   bool is_empty () const;
 };