ndnboost: Include boost::iostreams for internal use.
diff --git a/include/ndnboost/iostreams/input_sequence.hpp b/include/ndnboost/iostreams/input_sequence.hpp
new file mode 100644
index 0000000..7950c6f
--- /dev/null
+++ b/include/ndnboost/iostreams/input_sequence.hpp
@@ -0,0 +1,72 @@
+// (C) Copyright 2008 CodeRage, LLC (turkanis at coderage dot com)
+// (C) Copyright 2003-2007 Jonathan Turkanis
+// 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.)
+
+// See http://www.boost.org/libs/iostreams for documentation.
+
+#ifndef NDNBOOST_IOSTREAMS_INPUT_SEQUENCE_HPP_INCLUDED
+#define NDNBOOST_IOSTREAMS_INPUT_SEQUENCE_HPP_INCLUDED
+
+#if defined(_MSC_VER) && (_MSC_VER >= 1020)
+# pragma once
+#endif
+
+#include <utility> // pair.
+#include <ndnboost/config.hpp> // DEDUCED_TYPENAME, MSVC.
+#include <ndnboost/detail/workaround.hpp>
+#include <ndnboost/iostreams/detail/wrap_unwrap.hpp>
+#include <ndnboost/iostreams/operations_fwd.hpp> // is_custom
+#include <ndnboost/iostreams/traits.hpp>
+#include <ndnboost/mpl/if.hpp>
+
+// Must come last.
+#include <ndnboost/iostreams/detail/config/disable_warnings.hpp>
+
+namespace ndnboost { namespace iostreams {
+
+namespace detail {
+
+template<typename T>
+struct input_sequence_impl;
+
+} // End namespace detail.
+
+template<typename T>
+inline std::pair<
+ NDNBOOST_DEDUCED_TYPENAME char_type_of<T>::type*,
+ NDNBOOST_DEDUCED_TYPENAME char_type_of<T>::type*
+>
+input_sequence(T& t)
+{ return detail::input_sequence_impl<T>::input_sequence(t); }
+
+namespace detail {
+
+//------------------Definition of direct_impl-------------------------------//
+
+template<typename T>
+struct input_sequence_impl
+ : mpl::if_<
+ detail::is_custom<T>,
+ operations<T>,
+ input_sequence_impl<direct_tag>
+ >::type
+ { };
+
+template<>
+struct input_sequence_impl<direct_tag> {
+ template<typename U>
+ static std::pair<
+ NDNBOOST_DEDUCED_TYPENAME char_type_of<U>::type*,
+ NDNBOOST_DEDUCED_TYPENAME char_type_of<U>::type*
+ >
+ input_sequence(U& u) { return u.input_sequence(); }
+};
+
+} // End namespace detail.
+
+} } // End namespaces iostreams, boost.
+
+#include <ndnboost/iostreams/detail/config/enable_warnings.hpp>
+
+#endif // #ifndef NDNBOOST_IOSTREAMS_INPUT_SEQUENCE_HPP_INCLUDED