(c) 1997--2004 Han-Wen Nienhuys <hanwen@cs.uu.nl>
*/
-#include <math.h> // ceil.
+#include "rest-collision.hh"
+
+#include <cmath> // ceil.
#include "warn.hh"
-#include "rest-collision.hh"
#include "note-column.hh"
#include "stem.hh"
#include "rhythmic-head.hh"