diff --git a/ndnboost/function_types/detail/class_transform.hpp b/ndnboost/function_types/detail/class_transform.hpp
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+++ b/ndnboost/function_types/detail/class_transform.hpp
@@ -0,0 +1,62 @@
+
+// (C) Copyright Tobias Schwinger
+//
+// Use modification and distribution are subject to the boost Software License,
+// Version 1.0. (See http://www.boost.org/LICENSE_1_0.txt).
+
+//------------------------------------------------------------------------------
+
+#ifndef BOOST_FT_DETAIL_CLASS_TRANSFORM_HPP_INCLUDED
+#define BOOST_FT_DETAIL_CLASS_TRANSFORM_HPP_INCLUDED
+
+#include <ndnboost/mpl/apply.hpp>
+#include <ndnboost/mpl/always.hpp>
+#include <ndnboost/mpl/identity.hpp>
+#include <ndnboost/mpl/placeholders.hpp>
+
+#include <ndnboost/type_traits/remove_cv.hpp>
+#include <ndnboost/type_traits/add_pointer.hpp>
+#include <ndnboost/type_traits/add_reference.hpp>
+
+namespace ndnboost { namespace function_types { namespace detail {
+
+using mpl::placeholders::_;
+
+// Transformation metafunction for the class type of member function pointers.
+template<typename T, typename L>
+struct class_transform
+{ typedef typename mpl::apply1<L,T>::type type; };
+
+
+#ifndef BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION
+// We can short-circuit the mechanism implemented in the primary template for 
+// the most common lambda expression and save both the "un-lambdaing" and the
+// type traits invocation (we know that T can only be a class type).
+
+template<typename T> struct class_transform< T, mpl::identity<_> >
+{ typedef T type; };
+
+template<typename T> struct class_transform< T, add_reference<_> > 
+{ typedef T & type; };
+
+template<typename T> struct class_transform< T, add_pointer<_> >
+{ typedef T * type; };
+
+template<typename T> struct class_transform< T, remove_cv<_> >
+{ typedef typename ndnboost::remove_cv<T>::type type; };
+
+template<typename T> struct class_transform< T, add_reference< remove_cv<_> > >
+{ typedef typename ndnboost::remove_cv<T>::type & type; };
+
+template<typename T> struct class_transform< T, add_pointer< remove_cv<_> > >
+{ typedef typename ndnboost::remove_cv<T>::type * type; };
+
+template<typename T, typename U> struct class_transform< T, mpl::always<U> >
+{ typedef U type; };
+#endif
+
+
+} } } // namespace ::ndnboost::function_types::detail
+
+#endif
+