// (See accompanying file LICENSE_1_0.txt or copy at
// http://www.boost.org/LICENSE_1_0.txt)
+#include <boost/coroutine/all.hpp>
+
#include <cstddef>
#include <cstdlib>
#include <iostream>
#include <boost/bind.hpp>
#include <boost/range.hpp>
#include <boost/shared_ptr.hpp>
-#include <boost/coroutine/all.hpp>
struct node
{