Add stream_fwd.hpp

include/boost/beast/websocket.hpp

@@ -16,6 +16,7 @@
 #include <boost/beast/websocket/option.hpp>
 #include <boost/beast/websocket/rfc6455.hpp>
 #include <boost/beast/websocket/stream.hpp>
+#include <boost/beast/websocket/stream_fwd.hpp>
 #include <boost/beast/websocket/teardown.hpp>
 
 #endif

include/boost/beast/websocket/stream.hpp

@@ -15,6 +15,7 @@
 #include <boost/beast/websocket/option.hpp>
 #include <boost/beast/websocket/role.hpp>
 #include <boost/beast/websocket/rfc6455.hpp>
+#include <boost/beast/websocket/stream_fwd.hpp>
 #include <boost/beast/websocket/detail/frame.hpp>
 #include <boost/beast/websocket/detail/hybi13.hpp>
 #include <boost/beast/websocket/detail/mask.hpp>

include/boost/beast/websocket/stream_fwd.hpp

@@ -0,0 +1,27 @@
+//
+// Copyright (c) 2016-2017 Vinnie Falco (vinnie dot falco at gmail dot com)
+//
+// Distributed under 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)
+//
+// Official repository: https://github.com/boostorg/beast
+//
+
+#ifndef BOOST_BEAST_WEBSOCKET_STREAM_FWD_HPP
+#define BOOST_BEAST_WEBSOCKET_STREAM_FWD_HPP
+
+#include <boost/beast/core/detail/config.hpp>
+
+namespace boost {
+namespace beast {
+namespace websocket {
+
+template<
+    class NextLayer>
+class stream;
+
+} // websocket
+} // beast
+} // boost
+
+#endif