From: Han-Wen Nienhuys <hanwen@lilypond.org>
Date: Mon, 31 Jan 2011 14:54:41 +0000 (-0200)
Subject: Document Interval::delta().
X-Git-Tag: release/2.13.48-1~18
X-Git-Url: https://git.donarmstrong.com/?a=commitdiff_plain;h=4c67a449e01a229165a8fd5f26c06cb90ba97346;p=lilypond.git

Document Interval::delta().
---

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 ();