From 4c67a449e01a229165a8fd5f26c06cb90ba97346 Mon Sep 17 00:00:00 2001
From: Han-Wen Nienhuys <hanwen@lilypond.org>
Date: Mon, 31 Jan 2011 12:54:41 -0200
Subject: Document Interval::delta().

---
 flower/include/interval.hh | 2 ++
 1 file changed, 2 insertions(+)

(limited to 'flower')

diff --git a/flower/include/interval.hh b/flower/include/interval.hh
index 9c831816c4..be7074c242 100644
--- a/flower/include/interval.hh
+++ b/flower/include/interval.hh
@@ -68,6 +68,8 @@ struct Interval_t : public Drul_array<T>
     at (RIGHT) = max (at (RIGHT), p);
   }
   T length () const;
+
+  // Returns RIGHT - LEFT, even if the interval is empty.
   T delta () const;
   void set_empty ();
   void set_full ();
-- 
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