+// Copyright Nick Thompson, 2017
+// Copyright John Maddock 2017
+// Use, modification and distribution are subject to the
+// Boost Software License, Version 1.0.
+// (See accompanying file LICENSE_1_0.txt
+// or copy at http://www.boost.org/LICENSE_1_0.txt)
+
#include <cmath>
#include <cstdint>
#include <functional>