X-Git-Url: https://git.donarmstrong.com/?a=blobdiff_plain;f=lily%2Fskyline.cc;h=99452189c65f7784678e82c71c7e94ec3fbd9a60;hb=3f8485925e8c879fe4c9ae86acef9804126c3b91;hp=0e2f2fa12b97862dd1956d9a10d8d731d53a3dfe;hpb=0fdc16375c79b31150cfe459b3388ee3c7784553;p=lilypond.git

diff --git a/lily/skyline.cc b/lily/skyline.cc
index 0e2f2fa12b..99452189c6 100644
--- a/lily/skyline.cc
+++ b/lily/skyline.cc
@@ -582,6 +582,12 @@ Skyline::to_points () const
   return out;
 }
 
+bool
+Skyline::is_empty () const
+{
+  return buildings_.empty ();
+}
+
 Skyline_pair::Skyline_pair ()
   : skylines_ (Skyline (DOWN), Skyline (UP))
 {
@@ -625,6 +631,13 @@ Skyline_pair::merge (Skyline_pair const &other)
   skylines_[DOWN].merge (other[DOWN]);
 }
 
+bool
+Skyline_pair::is_empty () const
+{
+  return skylines_[UP].is_empty ()
+    && skylines_[DOWN].is_empty ();
+}
+
 Skyline&
 Skyline_pair::operator [] (Direction d)
 {