Rename the extracted boost subdirectory to ndnboost
diff --git a/ndnboost/type_traits/is_polymorphic.hpp b/ndnboost/type_traits/is_polymorphic.hpp
new file mode 100644
index 0000000..f49cd12
--- /dev/null
+++ b/ndnboost/type_traits/is_polymorphic.hpp
@@ -0,0 +1,114 @@
+// (C) Copyright 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_IS_POLYMORPHIC_HPP
+#define BOOST_TT_IS_POLYMORPHIC_HPP
+
+#include <ndnboost/type_traits/intrinsics.hpp>
+#ifndef BOOST_IS_POLYMORPHIC
+#include <ndnboost/type_traits/is_class.hpp>
+#include <ndnboost/type_traits/remove_cv.hpp>
+#endif
+// should be the last #include
+#include <ndnboost/type_traits/detail/bool_trait_def.hpp>
+#include <ndnboost/detail/workaround.hpp>
+
+namespace ndnboost{
+
+#ifndef BOOST_IS_POLYMORPHIC
+
+namespace detail{
+
+template <class T>
+struct is_polymorphic_imp1
+{
+# if BOOST_WORKAROUND(__MWERKS__, <= 0x2407) // CWPro7 should return false always.
+ typedef char d1, (&d2)[2];
+# else
+ typedef typename remove_cv<T>::type ncvT;
+ struct d1 : public ncvT
+ {
+ d1();
+# if !defined(__GNUC__) // this raises warnings with some classes, and buys nothing with GCC
+ ~d1()throw();
+# endif
+ char padding[256];
+ private:
+ // keep some picky compilers happy:
+ d1(const d1&);
+ d1& operator=(const d1&);
+ };
+ struct d2 : public ncvT
+ {
+ d2();
+ virtual ~d2()throw();
+# if !defined(BOOST_MSVC) && !defined(__ICL)
+ // for some reason this messes up VC++ when T has virtual bases,
+ // probably likewise for compilers that use the same ABI:
+ struct unique{};
+ virtual void unique_name_to_boost5487629(unique*);
+# endif
+ char padding[256];
+ private:
+ // keep some picky compilers happy:
+ d2(const d2&);
+ d2& operator=(const d2&);
+ };
+# endif
+ BOOST_STATIC_CONSTANT(bool, value = (sizeof(d2) == sizeof(d1)));
+};
+
+template <class T>
+struct is_polymorphic_imp2
+{
+ BOOST_STATIC_CONSTANT(bool, value = false);
+};
+
+template <bool is_class>
+struct is_polymorphic_selector
+{
+ template <class T>
+ struct rebind
+ {
+ typedef is_polymorphic_imp2<T> type;
+ };
+};
+
+template <>
+struct is_polymorphic_selector<true>
+{
+ template <class T>
+ struct rebind
+ {
+ typedef is_polymorphic_imp1<T> type;
+ };
+};
+
+template <class T>
+struct is_polymorphic_imp
+{
+ typedef is_polymorphic_selector< ::ndnboost::is_class<T>::value> selector;
+ typedef typename selector::template rebind<T> binder;
+ typedef typename binder::type imp_type;
+ BOOST_STATIC_CONSTANT(bool, value = imp_type::value);
+};
+
+} // namespace detail
+
+BOOST_TT_AUX_BOOL_TRAIT_DEF1(is_polymorphic,T,::ndnboost::detail::is_polymorphic_imp<T>::value)
+
+#else // BOOST_IS_POLYMORPHIC
+
+BOOST_TT_AUX_BOOL_TRAIT_DEF1(is_polymorphic,T,BOOST_IS_POLYMORPHIC(T))
+
+#endif
+
+} // namespace ndnboost
+
+#include <ndnboost/type_traits/detail/bool_trait_undef.hpp>
+
+#endif