Added boost header

test/external/boost/asio/ip/unicast.hpp

@@ -0,0 +1,69 @@
+//
+// ip/unicast.hpp
+// ~~~~~~~~~~~~~~
+//
+// Copyright (c) 2003-2011 Christopher M. Kohlhoff (chris at kohlhoff 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)
+//
+
+#ifndef BOOST_ASIO_IP_UNICAST_HPP
+#define BOOST_ASIO_IP_UNICAST_HPP
+
+#if defined(_MSC_VER) && (_MSC_VER >= 1200)
+# pragma once
+#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
+
+#include <boost/asio/detail/config.hpp>
+#include <cstddef>
+#include <boost/asio/ip/detail/socket_option.hpp>
+
+#include <boost/asio/detail/push_options.hpp>
+
+namespace boost {
+namespace asio {
+namespace ip {
+namespace unicast {
+
+/// Socket option for time-to-live associated with outgoing unicast packets.
+/**
+ * Implements the IPPROTO_IP/IP_UNICAST_TTL socket option.
+ *
+ * @par Examples
+ * Setting the option:
+ * @code
+ * boost::asio::ip::udp::socket socket(io_service); 
+ * ...
+ * boost::asio::ip::unicast::hops option(4);
+ * socket.set_option(option);
+ * @endcode
+ *
+ * @par
+ * Getting the current option value:
+ * @code
+ * boost::asio::ip::udp::socket socket(io_service); 
+ * ...
+ * boost::asio::ip::unicast::hops option;
+ * socket.get_option(option);
+ * int ttl = option.value();
+ * @endcode
+ *
+ * @par Concepts:
+ * GettableSocketOption, SettableSocketOption.
+ */
+#if defined(GENERATING_DOCUMENTATION)
+typedef implementation_defined hops;
+#else
+typedef boost::asio::ip::detail::socket_option::unicast_hops<
+  IPPROTO_IP, IP_TTL, IPPROTO_IPV6, IPV6_UNICAST_HOPS> hops;
+#endif
+
+} // namespace unicast
+} // namespace ip
+} // namespace asio
+} // namespace boost
+
+#include <boost/asio/detail/pop_options.hpp>
+
+#endif // BOOST_ASIO_IP_UNICAST_HPP