Rename the extracted boost subdirectory to ndnboost
diff --git a/ndnboost/type_traits/add_reference.hpp b/ndnboost/type_traits/add_reference.hpp
new file mode 100644
index 0000000..d825355
--- /dev/null
+++ b/ndnboost/type_traits/add_reference.hpp
@@ -0,0 +1,107 @@
+
+// (C) Copyright Steve Cleary, Beman Dawes, Howard Hinnant & John Maddock 2000.
+// 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).
+//
+// See http://www.boost.org/libs/type_traits for most recent version including documentation.
+
+#ifndef BOOST_TT_ADD_REFERENCE_HPP_INCLUDED
+#define BOOST_TT_ADD_REFERENCE_HPP_INCLUDED
+
+#include <ndnboost/type_traits/is_reference.hpp>
+#include <ndnboost/detail/workaround.hpp>
+#include <ndnboost/config.hpp>
+
+// should be the last #include
+#include <ndnboost/type_traits/detail/type_trait_def.hpp>
+
+namespace ndnboost {
+
+namespace detail {
+
+#if defined(BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION) && defined(BOOST_MSVC6_MEMBER_TEMPLATES)
+
+template <bool x>
+struct reference_adder
+{
+ template <typename T> struct result_
+ {
+ typedef T& type;
+ };
+};
+
+template <>
+struct reference_adder<true>
+{
+ template <typename T> struct result_
+ {
+ typedef T type;
+ };
+};
+
+template <typename T>
+struct add_reference_impl
+{
+ typedef typename reference_adder<
+ ::ndnboost::is_reference<T>::value
+ >::template result_<T> result;
+
+ typedef typename result::type type;
+};
+
+#else
+//
+// We can't filter out rvalue_references at the same level as
+// references or we get ambiguities from msvc:
+//
+
+template <typename T>
+struct add_reference_rvalue_layer
+{
+ typedef T& type;
+};
+
+#ifndef BOOST_NO_CXX11_RVALUE_REFERENCES
+template <typename T>
+struct add_reference_rvalue_layer<T&&>
+{
+ typedef T&& type;
+};
+#endif
+
+template <typename T>
+struct add_reference_impl
+{
+ typedef typename add_reference_rvalue_layer<T>::type type;
+};
+
+#ifndef BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION
+BOOST_TT_AUX_TYPE_TRAIT_IMPL_PARTIAL_SPEC1_1(typename T,add_reference,T&,T&)
+#endif
+
+#endif
+
+// these full specialisations are always required:
+BOOST_TT_AUX_TYPE_TRAIT_IMPL_SPEC1(add_reference,void,void)
+#ifndef BOOST_NO_CV_VOID_SPECIALIZATIONS
+BOOST_TT_AUX_TYPE_TRAIT_IMPL_SPEC1(add_reference,void const,void const)
+BOOST_TT_AUX_TYPE_TRAIT_IMPL_SPEC1(add_reference,void volatile,void volatile)
+BOOST_TT_AUX_TYPE_TRAIT_IMPL_SPEC1(add_reference,void const volatile,void const volatile)
+#endif
+
+} // namespace detail
+
+BOOST_TT_AUX_TYPE_TRAIT_DEF1(add_reference,T,typename ndnboost::detail::add_reference_impl<T>::type)
+
+// agurt, 07/mar/03: workaround Borland's ill-formed sensitivity to an additional
+// level of indirection, here
+#if BOOST_WORKAROUND(__BORLANDC__, < 0x600)
+BOOST_TT_AUX_TYPE_TRAIT_PARTIAL_SPEC1_1(typename T,add_reference,T&,T&)
+#endif
+
+} // namespace ndnboost
+
+#include <ndnboost/type_traits/detail/type_trait_undef.hpp>
+
+#endif // BOOST_TT_ADD_REFERENCE_HPP_INCLUDED