diff --git a/ndnboost/numeric/conversion/detail/bounds.hpp b/ndnboost/numeric/conversion/detail/bounds.hpp
new file mode 100644
index 0000000..34effae
--- /dev/null
+++ b/ndnboost/numeric/conversion/detail/bounds.hpp
@@ -0,0 +1,58 @@
+//  (c) Copyright Fernando Luis Cacciola Carballal 2000-2004
+//  Use, modification, and distribution is 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 library home page at http://www.boost.org/libs/numeric/conversion
+//
+// Contact the author at: fernando_cacciola@hotmail.com
+// 
+#ifndef BOOST_NUMERIC_CONVERSION_BOUNDS_DETAIL_FLC_12NOV2002_HPP
+#define BOOST_NUMERIC_CONVERSION_BOUNDS_DETAIL_FLC_12NOV2002_HPP
+
+#include "ndnboost/limits.hpp"
+#include "ndnboost/config.hpp"
+#include "ndnboost/mpl/if.hpp"
+
+namespace ndnboost { namespace numeric { namespace boundsdetail
+{
+  template<class N>
+  class Integral
+  {
+      typedef std::numeric_limits<N> limits ;
+
+    public :
+    
+      static N lowest  () { return limits::min BOOST_PREVENT_MACRO_SUBSTITUTION (); }
+      static N highest () { return limits::max BOOST_PREVENT_MACRO_SUBSTITUTION (); }
+      static N smallest() { return static_cast<N>(1); }
+  } ;
+
+  template<class N>
+  class Float
+  {
+      typedef std::numeric_limits<N> limits ;
+
+    public :
+    
+      static N lowest  () { return static_cast<N>(-limits::max BOOST_PREVENT_MACRO_SUBSTITUTION ()) ; }
+      static N highest () { return limits::max BOOST_PREVENT_MACRO_SUBSTITUTION (); }
+      static N smallest() { return limits::min BOOST_PREVENT_MACRO_SUBSTITUTION (); }
+  } ;
+
+  template<class N>
+  struct get_impl
+  {
+    typedef mpl::bool_< ::std::numeric_limits<N>::is_integer > is_int ;
+
+    typedef Integral<N> impl_int   ;
+    typedef Float   <N> impl_float ;
+
+    typedef typename mpl::if_<is_int,impl_int,impl_float>::type type ;
+  } ;
+
+} } } // namespace ndnboost::numeric::boundsdetail.
+
+#endif
+//
+///////////////////////////////////////////////////////////////////////////////////////////////
diff --git a/ndnboost/numeric/conversion/detail/conversion_traits.hpp b/ndnboost/numeric/conversion/detail/conversion_traits.hpp
new file mode 100644
index 0000000..55c7d86
--- /dev/null
+++ b/ndnboost/numeric/conversion/detail/conversion_traits.hpp
@@ -0,0 +1,97 @@
+//  (c) Copyright Fernando Luis Cacciola Carballal 2000-2004
+//  Use, modification, and distribution is 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 library home page at http://www.boost.org/libs/numeric/conversion
+//
+// Contact the author at: fernando_cacciola@hotmail.com
+// 
+#ifndef BOOST_NUMERIC_CONVERSION_DETAIL_CONVERSION_TRAITS_FLC_12NOV2002_HPP
+#define BOOST_NUMERIC_CONVERSION_DETAIL_CONVERSION_TRAITS_FLC_12NOV2002_HPP
+
+#include "ndnboost/type_traits/is_arithmetic.hpp"
+#include "ndnboost/type_traits/is_same.hpp"
+#include "ndnboost/type_traits/remove_cv.hpp"
+
+#include "ndnboost/numeric/conversion/detail/meta.hpp"
+#include "ndnboost/numeric/conversion/detail/int_float_mixture.hpp"
+#include "ndnboost/numeric/conversion/detail/sign_mixture.hpp"
+#include "ndnboost/numeric/conversion/detail/udt_builtin_mixture.hpp"
+#include "ndnboost/numeric/conversion/detail/is_subranged.hpp"
+
+namespace ndnboost { namespace numeric { namespace convdetail
+{
+  //-------------------------------------------------------------------
+  // Implementation of the Conversion Traits for T != S
+  //
+  // This is a VISIBLE base class of the user-level conversion_traits<> class.
+  //-------------------------------------------------------------------
+  template<class T,class S>
+  struct non_trivial_traits_impl
+  {
+    typedef typename get_int_float_mixture   <T,S>::type int_float_mixture ;
+    typedef typename get_sign_mixture        <T,S>::type sign_mixture ;
+    typedef typename get_udt_builtin_mixture <T,S>::type udt_builtin_mixture ;
+
+    typedef typename get_is_subranged<T,S>::type subranged ;
+
+    typedef mpl::false_ trivial ;
+
+    typedef T target_type ;
+    typedef S source_type ;
+    typedef T result_type ;
+
+    typedef typename mpl::if_< is_arithmetic<S>, S, S const&>::type argument_type ;
+
+    typedef typename mpl::if_<subranged,S,T>::type supertype ;
+    typedef typename mpl::if_<subranged,T,S>::type subtype   ;
+  } ;
+
+  //-------------------------------------------------------------------
+  // Implementation of the Conversion Traits for T == S
+  //
+  // This is a VISIBLE base class of the user-level conversion_traits<> class.
+  //-------------------------------------------------------------------
+  template<class N>
+  struct trivial_traits_impl
+  {
+    typedef typename get_int_float_mixture  <N,N>::type int_float_mixture ;
+    typedef typename get_sign_mixture       <N,N>::type sign_mixture ;
+    typedef typename get_udt_builtin_mixture<N,N>::type udt_builtin_mixture ;
+
+    typedef mpl::false_ subranged ;
+    typedef mpl::true_  trivial ;
+
+    typedef N        target_type ;
+    typedef N        source_type ;
+    typedef N const& result_type ;
+    typedef N const& argument_type ;
+
+    typedef N supertype ;
+    typedef N subtype  ;
+
+  } ;
+
+  //-------------------------------------------------------------------
+  // Top level implementation selector.
+  //-------------------------------------------------------------------
+  template<class T, class S>
+  struct get_conversion_traits
+  {
+    typedef typename remove_cv<T>::type target_type ;
+    typedef typename remove_cv<S>::type source_type ;
+
+    typedef typename is_same<target_type,source_type>::type is_trivial ;
+
+    typedef trivial_traits_impl    <target_type>             trivial_imp ;
+    typedef non_trivial_traits_impl<target_type,source_type> non_trivial_imp ;
+
+    typedef typename mpl::if_<is_trivial,trivial_imp,non_trivial_imp>::type type ;
+  } ;
+
+} } } // namespace ndnboost::numeric::convdetail
+
+#endif
+
+
diff --git a/ndnboost/numeric/conversion/detail/converter.hpp b/ndnboost/numeric/conversion/detail/converter.hpp
new file mode 100644
index 0000000..813a5c3
--- /dev/null
+++ b/ndnboost/numeric/conversion/detail/converter.hpp
@@ -0,0 +1,602 @@
+//  (c) Copyright Fernando Luis Cacciola Carballal 2000-2004
+//  Use, modification, and distribution is 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 library home page at http://www.boost.org/libs/numeric/conversion
+//
+// Contact the author at: fernando_cacciola@hotmail.com
+//
+#ifndef BOOST_NUMERIC_CONVERSION_DETAIL_CONVERTER_FLC_12NOV2002_HPP
+#define BOOST_NUMERIC_CONVERSION_DETAIL_CONVERTER_FLC_12NOV2002_HPP
+
+#include <functional>
+
+#include "ndnboost/numeric/conversion/detail/meta.hpp"
+#include "ndnboost/numeric/conversion/detail/conversion_traits.hpp"
+#include "ndnboost/numeric/conversion/bounds.hpp"
+
+#include "ndnboost/type_traits/is_same.hpp"
+
+#include "ndnboost/mpl/integral_c.hpp"
+
+namespace ndnboost { namespace numeric { namespace convdetail
+{
+  // Integral Constants representing rounding modes
+  typedef mpl::integral_c<std::float_round_style, std::round_toward_zero>         round2zero_c ;
+  typedef mpl::integral_c<std::float_round_style, std::round_to_nearest>          round2nearest_c ;
+  typedef mpl::integral_c<std::float_round_style, std::round_toward_infinity>     round2inf_c ;
+  typedef mpl::integral_c<std::float_round_style, std::round_toward_neg_infinity> round2neg_inf_c ;
+
+  // Metafunction:
+  //
+  //   for_round_style<RoundStyle,RoundToZero,RoundToNearest,RoundToInf,RoundToNegInf>::type
+  //
+  // {RoundStyle} Integral Constant specifying a round style as declared above.
+  // {RoundToZero,RoundToNearest,RoundToInf,RoundToNegInf} arbitrary types.
+  //
+  // Selects one of the 4 types according to the value of RoundStyle.
+  //
+  template<class RoundStyle,class RoundToZero,class RoundToNearest,class RoundToInf,class RoundToNegInf>
+  struct for_round_style
+  {
+    typedef ct_switch4<RoundStyle
+                       , round2zero_c, round2nearest_c, round2inf_c // round2neg_inf_c
+                       , RoundToZero , RoundToNearest , RoundToInf , RoundToNegInf
+                      > selector ;
+
+    typedef typename selector::type type ;
+  } ;
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+//--------------------------------------------------------------------------
+//                             Range Checking Logic.
+//
+// The range checking logic is built up by combining 1 or 2 predicates.
+// Each predicate is encapsulated in a template class and exposes
+// the static member function 'apply'.
+//
+//--------------------------------------------------------------------------
+
+
+  // Because a particular logic can combine either 1 or two predicates, the following
+  // tags are used to allow the predicate applier to receive 2 preds, but optimize away
+  // one of them if it is 'non-applicable'
+  struct non_applicable { typedef mpl::false_ do_apply ; } ;
+  struct applicable     { typedef mpl::true_  do_apply ; } ;
+
+
+  //--------------------------------------------------------------------------
+  //
+  //                      Range Checking Logic implementations.
+  //
+  // The following classes, collectivelly named 'Predicates', are instantiated within
+  // the corresponding range checkers.
+  // Their static member function 'apply' is called to perform the actual range checking logic.
+  //--------------------------------------------------------------------------
+
+    // s < Lowest(T) ? cNegOverflow : cInRange
+    //
+    template<class Traits>
+    struct LT_LoT : applicable
+    {
+      typedef typename Traits::target_type T ;
+      typedef typename Traits::source_type S ;
+      typedef typename Traits::argument_type argument_type ;
+
+      static range_check_result apply ( argument_type s )
+      {
+        return s < static_cast<S>(bounds<T>::lowest()) ? cNegOverflow : cInRange ;
+      }
+    } ;
+
+    // s < 0 ? cNegOverflow : cInRange
+    //
+    template<class Traits>
+    struct LT_Zero : applicable
+    {
+      typedef typename Traits::source_type S ;
+      typedef typename Traits::argument_type argument_type ;
+
+      static range_check_result apply ( argument_type s )
+      {
+        return s < static_cast<S>(0) ? cNegOverflow : cInRange ;
+      }
+    } ;
+
+    // s <= Lowest(T)-1 ? cNegOverflow : cInRange
+    //
+    template<class Traits>
+    struct LE_PrevLoT : applicable
+    {
+      typedef typename Traits::target_type T ;
+      typedef typename Traits::source_type S ;
+      typedef typename Traits::argument_type argument_type ;
+
+      static range_check_result apply ( argument_type s )
+      {
+        return s <= static_cast<S>(bounds<T>::lowest()) - static_cast<S>(1.0)
+                 ? cNegOverflow : cInRange ;
+      }
+    } ;
+
+    // s < Lowest(T)-0.5 ? cNegOverflow : cInRange
+    //
+    template<class Traits>
+    struct LT_HalfPrevLoT : applicable
+    {
+      typedef typename Traits::target_type T ;
+      typedef typename Traits::source_type S ;
+      typedef typename Traits::argument_type argument_type ;
+
+      static range_check_result apply ( argument_type s )
+      {
+        return s < static_cast<S>(bounds<T>::lowest()) - static_cast<S>(0.5)
+                 ? cNegOverflow : cInRange ;
+      }
+    } ;
+
+    // s > Highest(T) ? cPosOverflow : cInRange
+    //
+    template<class Traits>
+    struct GT_HiT : applicable
+    {
+      typedef typename Traits::target_type T ;
+      typedef typename Traits::source_type S ;
+      typedef typename Traits::argument_type argument_type ;
+
+      static range_check_result apply ( argument_type s )
+      {
+        return s > static_cast<S>(bounds<T>::highest())
+                 ? cPosOverflow : cInRange ;
+      }
+    } ;
+
+    // s >= Lowest(T) + 1 ? cPosOverflow : cInRange
+    //
+    template<class Traits>
+    struct GE_SuccHiT : applicable
+    {
+      typedef typename Traits::target_type T ;
+      typedef typename Traits::source_type S ;
+      typedef typename Traits::argument_type argument_type ;
+
+      static range_check_result apply ( argument_type s )
+      {
+        return s >= static_cast<S>(bounds<T>::highest()) + static_cast<S>(1.0)
+                 ? cPosOverflow : cInRange ;
+      }
+    } ;
+
+    // s >= Lowest(T) + 0.5 ? cPosgOverflow : cInRange
+    //
+    template<class Traits>
+    struct GT_HalfSuccHiT : applicable
+    {
+      typedef typename Traits::target_type T ;
+      typedef typename Traits::source_type S ;
+      typedef typename Traits::argument_type argument_type ;
+
+      static range_check_result apply ( argument_type s )
+      {
+        return s >= static_cast<S>(bounds<T>::highest()) + static_cast<S>(0.5)
+                 ? cPosOverflow : cInRange ;
+      }
+    } ;
+
+
+  //--------------------------------------------------------------------------
+  //
+  // Predicate Combiner.
+  //
+  // This helper classes are used to possibly combine the range checking logic
+  // individually performed by the predicates
+  //
+  //--------------------------------------------------------------------------
+
+
+    // Applies both predicates: first 'PredA', and if it equals 'cInRange', 'PredB'
+    template<class PredA, class PredB>
+    struct applyBoth
+    {
+      typedef typename PredA::argument_type argument_type ;
+
+      static range_check_result apply ( argument_type s )
+      {
+        range_check_result r = PredA::apply(s) ;
+        if ( r == cInRange )
+          r = PredB::apply(s);
+        return r ;
+      }
+    } ;
+
+    template<class PredA, class PredB>
+    struct combine
+    {
+      typedef applyBoth<PredA,PredB> Both ;
+      typedef void                   NNone ; // 'None' is defined as a macro in (/usr/X11R6/include/X11/X.h)
+
+      typedef typename PredA::do_apply do_applyA ;
+      typedef typename PredB::do_apply do_applyB ;
+
+      typedef typename for_both<do_applyA, do_applyB, Both, PredA, PredB, NNone>::type type ;
+    } ;
+
+
+
+
+
+
+
+
+
+
+
+
+//--------------------------------------------------------------------------
+//                             Range Checker classes.
+//
+// The following classes are VISIBLE base classes of the user-level converter<> class.
+// They supply the optimized 'out_of_range()' and 'validate_range()' static member functions
+// visible in the user interface.
+//
+//--------------------------------------------------------------------------
+
+  // Dummy range checker.
+  template<class Traits>
+  struct dummy_range_checker
+  {
+    typedef typename Traits::argument_type argument_type ;
+
+    static range_check_result out_of_range ( argument_type ) { return cInRange ; }
+    static void validate_range ( argument_type ) {}
+  } ;
+
+  // Generic range checker.
+  //
+  // All the range checking logic for all possible combinations of source and target
+  // can be arranged in terms of one or two predicates, which test overflow on both neg/pos 'sides'
+  // of the ranges.
+  //
+  // These predicates are given here as IsNegOverflow and IsPosOverflow.
+  //
+  template<class Traits, class IsNegOverflow, class IsPosOverflow, class OverflowHandler>
+  struct generic_range_checker
+  {
+    typedef OverflowHandler overflow_handler ;
+
+    typedef typename Traits::argument_type argument_type ;
+
+    static range_check_result out_of_range ( argument_type s )
+    {
+      typedef typename combine<IsNegOverflow,IsPosOverflow>::type Predicate ;
+
+      return Predicate::apply(s);
+    }
+
+    static void validate_range ( argument_type s )
+      { OverflowHandler()( out_of_range(s) ) ; }
+  } ;
+
+
+
+//--------------------------------------------------------------------------
+//
+// Selectors for the optimized Range Checker class.
+//
+//--------------------------------------------------------------------------
+
+  template<class Traits,class OverflowHandler>
+  struct GetRC_Sig2Sig_or_Unsig2Unsig
+  {
+    typedef dummy_range_checker<Traits> Dummy ;
+
+    typedef LT_LoT<Traits> Pred1 ;
+    typedef GT_HiT<Traits> Pred2 ;
+
+    typedef generic_range_checker<Traits,Pred1,Pred2,OverflowHandler> Normal ;
+
+    typedef typename Traits::subranged subranged ;
+
+    typedef typename mpl::if_<subranged,Normal,Dummy>::type type ;
+  } ;
+
+  template<class Traits, class OverflowHandler>
+  struct GetRC_Sig2Unsig
+  {
+    typedef LT_Zero<Traits> Pred1 ;
+    typedef GT_HiT <Traits> Pred2 ;
+
+    typedef generic_range_checker<Traits,Pred1,Pred2,OverflowHandler> ChoiceA ;
+
+    typedef generic_range_checker<Traits,Pred1,non_applicable,OverflowHandler> ChoiceB ;
+
+    typedef typename Traits::target_type T ;
+    typedef typename Traits::source_type S ;
+
+    typedef typename subranged_Unsig2Sig<S,T>::type oposite_subranged ;
+
+    typedef typename mpl::not_<oposite_subranged>::type positively_subranged ;
+
+    typedef typename mpl::if_<positively_subranged,ChoiceA,ChoiceB>::type type ;
+  } ;
+
+  template<class Traits, class OverflowHandler>
+  struct GetRC_Unsig2Sig
+  {
+    typedef GT_HiT<Traits> Pred1 ;
+
+    typedef generic_range_checker<Traits,non_applicable,Pred1,OverflowHandler> type ;
+  } ;
+
+  template<class Traits,class OverflowHandler>
+  struct GetRC_Int2Int
+  {
+    typedef GetRC_Sig2Sig_or_Unsig2Unsig<Traits,OverflowHandler> Sig2SigQ     ;
+    typedef GetRC_Sig2Unsig             <Traits,OverflowHandler> Sig2UnsigQ   ;
+    typedef GetRC_Unsig2Sig             <Traits,OverflowHandler> Unsig2SigQ   ;
+    typedef Sig2SigQ                                             Unsig2UnsigQ ;
+
+    typedef typename Traits::sign_mixture sign_mixture ;
+
+    typedef typename
+      for_sign_mixture<sign_mixture,Sig2SigQ,Sig2UnsigQ,Unsig2SigQ,Unsig2UnsigQ>::type
+        selector ;
+
+    typedef typename selector::type type ;
+  } ;
+
+  template<class Traits>
+  struct GetRC_Int2Float
+  {
+    typedef dummy_range_checker<Traits> type ;
+  } ;
+
+  template<class Traits, class OverflowHandler, class Float2IntRounder>
+  struct GetRC_Float2Int
+  {
+    typedef LE_PrevLoT    <Traits> Pred1 ;
+    typedef GE_SuccHiT    <Traits> Pred2 ;
+    typedef LT_HalfPrevLoT<Traits> Pred3 ;
+    typedef GT_HalfSuccHiT<Traits> Pred4 ;
+    typedef GT_HiT        <Traits> Pred5 ;
+    typedef LT_LoT        <Traits> Pred6 ;
+
+    typedef generic_range_checker<Traits,Pred1,Pred2,OverflowHandler> ToZero    ;
+    typedef generic_range_checker<Traits,Pred3,Pred4,OverflowHandler> ToNearest ;
+    typedef generic_range_checker<Traits,Pred1,Pred5,OverflowHandler> ToInf     ;
+    typedef generic_range_checker<Traits,Pred6,Pred2,OverflowHandler> ToNegInf  ;
+
+    typedef typename Float2IntRounder::round_style round_style ;
+
+    typedef typename for_round_style<round_style,ToZero,ToNearest,ToInf,ToNegInf>::type type ;
+  } ;
+
+  template<class Traits, class OverflowHandler>
+  struct GetRC_Float2Float
+  {
+    typedef dummy_range_checker<Traits> Dummy ;
+
+    typedef LT_LoT<Traits> Pred1 ;
+    typedef GT_HiT<Traits> Pred2 ;
+
+    typedef generic_range_checker<Traits,Pred1,Pred2,OverflowHandler> Normal ;
+
+    typedef typename Traits::subranged subranged ;
+
+    typedef typename mpl::if_<subranged,Normal,Dummy>::type type ;
+  } ;
+
+  template<class Traits, class OverflowHandler, class Float2IntRounder>
+  struct GetRC_BuiltIn2BuiltIn
+  {
+    typedef GetRC_Int2Int<Traits,OverflowHandler>                    Int2IntQ ;
+    typedef GetRC_Int2Float<Traits>                                  Int2FloatQ ;
+    typedef GetRC_Float2Int<Traits,OverflowHandler,Float2IntRounder> Float2IntQ ;
+    typedef GetRC_Float2Float<Traits,OverflowHandler>                Float2FloatQ ;
+
+    typedef typename Traits::int_float_mixture int_float_mixture ;
+
+    typedef typename for_int_float_mixture<int_float_mixture, Int2IntQ, Int2FloatQ, Float2IntQ, Float2FloatQ>::type selector ;
+
+    typedef typename selector::type type ;
+  } ;
+
+  template<class Traits, class OverflowHandler, class Float2IntRounder>
+  struct GetRC
+  {
+    typedef GetRC_BuiltIn2BuiltIn<Traits,OverflowHandler,Float2IntRounder> BuiltIn2BuiltInQ ;
+
+    typedef dummy_range_checker<Traits> Dummy ;
+
+    typedef mpl::identity<Dummy> DummyQ ;
+
+    typedef typename Traits::udt_builtin_mixture udt_builtin_mixture ;
+
+    typedef typename for_udt_builtin_mixture<udt_builtin_mixture,BuiltIn2BuiltInQ,DummyQ,DummyQ,DummyQ>::type selector ;
+
+    typedef typename selector::type type ;
+  } ;
+
+
+
+
+//--------------------------------------------------------------------------
+//                             Converter classes.
+//
+// The following classes are VISIBLE base classes of the user-level converter<> class.
+// They supply the optimized 'nearbyint()' and 'convert()' static member functions
+// visible in the user interface.
+//
+//--------------------------------------------------------------------------
+
+  //
+  // Trivial Converter : used when (cv-unqualified) T == (cv-unqualified)  S
+  //
+  template<class Traits>
+  struct trivial_converter_impl : public std::unary_function<  BOOST_DEDUCED_TYPENAME Traits::argument_type
+                                                              ,BOOST_DEDUCED_TYPENAME Traits::result_type
+                                                            >
+                                 ,public dummy_range_checker<Traits>
+  {
+    typedef Traits traits ;
+
+    typedef typename Traits::source_type   source_type   ;
+    typedef typename Traits::argument_type argument_type ;
+    typedef typename Traits::result_type   result_type   ;
+
+    static result_type low_level_convert ( argument_type s ) { return s ; }
+    static source_type nearbyint         ( argument_type s ) { return s ; }
+    static result_type convert           ( argument_type s ) { return s ; }
+  } ;
+
+
+  //
+  // Rounding Converter : used for float to integral conversions.
+  //
+  template<class Traits,class RangeChecker,class RawConverter,class Float2IntRounder>
+  struct rounding_converter : public std::unary_function<  BOOST_DEDUCED_TYPENAME Traits::argument_type
+                                                          ,BOOST_DEDUCED_TYPENAME Traits::result_type
+                                                        >
+                             ,public RangeChecker
+                             ,public Float2IntRounder
+                             ,public RawConverter
+  {
+    typedef RangeChecker     RangeCheckerBase ;
+    typedef Float2IntRounder Float2IntRounderBase ;
+    typedef RawConverter     RawConverterBase ;
+
+    typedef Traits traits ;
+
+    typedef typename Traits::source_type   source_type   ;
+    typedef typename Traits::argument_type argument_type ;
+    typedef typename Traits::result_type   result_type   ;
+
+    static result_type convert ( argument_type s )
+    {
+      RangeCheckerBase::validate_range(s);
+      source_type s1 = Float2IntRounderBase::nearbyint(s);
+      return RawConverterBase::low_level_convert(s1);
+    }
+  } ;
+
+
+  //
+  // Non-Rounding Converter : used for all other conversions.
+  //
+  template<class Traits,class RangeChecker,class RawConverter>
+  struct non_rounding_converter : public std::unary_function< BOOST_DEDUCED_TYPENAME Traits::argument_type
+                                                             ,BOOST_DEDUCED_TYPENAME Traits::result_type
+                                                           >
+                                 ,public RangeChecker
+                                 ,public RawConverter
+  {
+    typedef RangeChecker RangeCheckerBase ;
+    typedef RawConverter RawConverterBase ;
+
+    typedef Traits traits ;
+
+    typedef typename Traits::source_type   source_type   ;
+    typedef typename Traits::argument_type argument_type ;
+    typedef typename Traits::result_type   result_type   ;
+
+    static source_type nearbyint ( argument_type s ) { return s ; }
+
+    static result_type convert ( argument_type s )
+    {
+      RangeCheckerBase::validate_range(s);
+      return RawConverterBase::low_level_convert(s);
+    }
+  } ;
+
+
+
+
+//--------------------------------------------------------------------------
+//
+// Selectors for the optimized Converter class.
+//
+//--------------------------------------------------------------------------
+
+  template<class Traits,class OverflowHandler,class Float2IntRounder,class RawConverter, class UserRangeChecker>
+  struct get_non_trivial_converter
+  {
+    typedef GetRC<Traits,OverflowHandler,Float2IntRounder> InternalRangeCheckerQ ;
+
+    typedef is_same<UserRangeChecker,UseInternalRangeChecker> use_internal_RC ;
+
+    typedef mpl::identity<UserRangeChecker> UserRangeCheckerQ ;
+
+    typedef typename
+      mpl::eval_if<use_internal_RC,InternalRangeCheckerQ,UserRangeCheckerQ>::type
+        RangeChecker ;
+
+    typedef non_rounding_converter<Traits,RangeChecker,RawConverter>              NonRounding ;
+    typedef rounding_converter<Traits,RangeChecker,RawConverter,Float2IntRounder> Rounding ;
+
+    typedef mpl::identity<NonRounding> NonRoundingQ ;
+    typedef mpl::identity<Rounding>    RoundingQ    ;
+
+    typedef typename Traits::int_float_mixture int_float_mixture ;
+
+    typedef typename
+      for_int_float_mixture<int_float_mixture, NonRoundingQ, NonRoundingQ, RoundingQ, NonRoundingQ>::type
+        selector ;
+
+    typedef typename selector::type type ;
+  } ;
+
+  template< class Traits
+           ,class OverflowHandler
+           ,class Float2IntRounder
+           ,class RawConverter
+           ,class UserRangeChecker
+          >
+  struct get_converter_impl
+  {
+#if BOOST_WORKAROUND(__BORLANDC__, BOOST_TESTED_AT( 0x0561 ) )
+    // bcc55 prefers sometimes template parameters to be explicit local types.
+    // (notice that is is illegal to reuse the names like this)
+    typedef Traits           Traits ;
+    typedef OverflowHandler  OverflowHandler ;
+    typedef Float2IntRounder Float2IntRounder ;
+    typedef RawConverter     RawConverter ;
+    typedef UserRangeChecker UserRangeChecker ;
+#endif
+
+    typedef trivial_converter_impl<Traits> Trivial ;
+    typedef mpl::identity        <Trivial> TrivialQ ;
+
+    typedef get_non_trivial_converter< Traits
+                                      ,OverflowHandler
+                                      ,Float2IntRounder
+                                      ,RawConverter
+                                      ,UserRangeChecker
+                                     > NonTrivialQ ;
+
+    typedef typename Traits::trivial trivial ;
+
+    typedef typename mpl::eval_if<trivial,TrivialQ,NonTrivialQ>::type type ;
+  } ;
+
+} } } // namespace ndnboost::numeric::convdetail
+
+#endif
+
+
diff --git a/ndnboost/numeric/conversion/detail/int_float_mixture.hpp b/ndnboost/numeric/conversion/detail/int_float_mixture.hpp
new file mode 100644
index 0000000..437b56a
--- /dev/null
+++ b/ndnboost/numeric/conversion/detail/int_float_mixture.hpp
@@ -0,0 +1,72 @@
+//  (c) Copyright Fernando Luis Cacciola Carballal 2000-2004
+//  Use, modification, and distribution is 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 library home page at http://www.boost.org/libs/numeric/conversion
+//
+// Contact the author at: fernando_cacciola@hotmail.com
+// 
+#ifndef BOOST_NUMERIC_CONVERSION_DETAIL_INT_FLOAT_MIXTURE_FLC_12NOV2002_HPP
+#define BOOST_NUMERIC_CONVERSION_DETAIL_INT_FLOAT_MIXTURE_FLC_12NOV2002_HPP
+
+#include "ndnboost/config.hpp"
+#include "ndnboost/limits.hpp"
+
+#include "ndnboost/numeric/conversion/int_float_mixture_enum.hpp"
+#include "ndnboost/numeric/conversion/detail/meta.hpp"
+
+#include "ndnboost/mpl/integral_c.hpp"
+
+namespace ndnboost { namespace numeric { namespace convdetail
+{
+  // Integral Constants for 'IntFloatMixture'
+  typedef mpl::integral_c<int_float_mixture_enum, integral_to_integral> int2int_c ;
+  typedef mpl::integral_c<int_float_mixture_enum, integral_to_float>    int2float_c ;
+  typedef mpl::integral_c<int_float_mixture_enum, float_to_integral>    float2int_c ;
+  typedef mpl::integral_c<int_float_mixture_enum, float_to_float>       float2float_c ;
+
+  // Metafunction:
+  //
+  //   get_int_float_mixture<T,S>::type
+  //
+  // Selects the appropriate Int-Float Mixture Integral Constant for the combination T,S.
+  //
+  template<class T,class S>
+  struct get_int_float_mixture
+  {
+    typedef mpl::bool_< ::std::numeric_limits<S>::is_integer > S_int ;
+    typedef mpl::bool_< ::std::numeric_limits<T>::is_integer > T_int ;
+
+    typedef typename
+      for_both<S_int, T_int, int2int_c, int2float_c, float2int_c, float2float_c>::type
+        type ;
+  } ;
+
+  // Metafunction:
+  //
+  //   for_int_float_mixture<Mixture,int_int,int_float,float_int,float_float>::type
+  //
+  // {Mixture} is one of the Integral Constants for Mixture, declared above.
+  // {int_int,int_float,float_int,float_float} are aribtrary types. (not metafunctions)
+  //
+  // According to the value of 'IntFloatMixture', selects the corresponding type.
+  //
+  template<class IntFloatMixture, class Int2Int, class Int2Float, class Float2Int, class Float2Float>
+  struct for_int_float_mixture
+  {
+    typedef typename
+      ct_switch4<IntFloatMixture
+                 ,int2int_c, int2float_c, float2int_c  // default
+                 ,Int2Int  , Int2Float  , Float2Int  , Float2Float
+                >::type
+        type ;
+  } ;
+
+} } } // namespace ndnboost::numeric::convdetail
+
+#endif
+//
+///////////////////////////////////////////////////////////////////////////////////////////////
+
+
diff --git a/ndnboost/numeric/conversion/detail/is_subranged.hpp b/ndnboost/numeric/conversion/detail/is_subranged.hpp
new file mode 100644
index 0000000..6f84872
--- /dev/null
+++ b/ndnboost/numeric/conversion/detail/is_subranged.hpp
@@ -0,0 +1,234 @@
+//  (c) Copyright Fernando Luis Cacciola Carballal 2000-2004
+//  Use, modification, and distribution is 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 library home page at http://www.boost.org/libs/numeric/conversion
+//
+// Contact the author at: fernando_cacciola@hotmail.com
+// 
+#ifndef BOOST_NUMERIC_CONVERSION_DETAIL_IS_SUBRANGED_FLC_12NOV2002_HPP
+#define BOOST_NUMERIC_CONVERSION_DETAIL_IS_SUBRANGED_FLC_12NOV2002_HPP
+
+#include "ndnboost/config.hpp"
+#include "ndnboost/limits.hpp"
+
+#include "ndnboost/mpl/int.hpp"
+#include "ndnboost/mpl/multiplies.hpp"
+#include "ndnboost/mpl/less.hpp"
+#include "ndnboost/mpl/equal_to.hpp"
+
+#include "ndnboost/type_traits/is_same.hpp"
+
+#include "ndnboost/numeric/conversion/detail/meta.hpp"
+#include "ndnboost/numeric/conversion/detail/int_float_mixture.hpp"
+#include "ndnboost/numeric/conversion/detail/sign_mixture.hpp"
+#include "ndnboost/numeric/conversion/detail/udt_builtin_mixture.hpp"
+
+namespace ndnboost { namespace numeric { namespace convdetail
+{
+  //---------------------------------------------------------------
+  // Implementations of the compile time predicate "T is subranged"
+  //---------------------------------------------------------------
+
+    // for integral to integral conversions
+    template<class T,class S>
+    struct subranged_Sig2Unsig
+    {
+      // Signed to unsigned conversions are 'subranged' because of possible loose
+      // of negative values.
+      typedef mpl::true_ type ;
+    } ;
+
+    // for unsigned integral to signed integral conversions
+    template<class T,class S>
+    struct subranged_Unsig2Sig
+    {
+       // IMPORTANT NOTE:
+       //
+       // This code assumes that signed/unsigned integral values are represented
+       // such that:
+       //
+       //  numeric_limits<signed T>::digits + 1 == numeric_limits<unsigned T>::digits
+       //
+       // The '+1' is required since numeric_limits<>::digits gives 1 bit less for signed integral types.
+       //
+       // This fact is used by the following logic:
+       //
+       //  if ( (numeric_limits<T>::digits+1) < (2*numeric_limits<S>::digits) )
+       //    then the conversion is subranged.
+       //
+
+       typedef mpl::int_< ::std::numeric_limits<S>::digits > S_digits ;
+       typedef mpl::int_< ::std::numeric_limits<T>::digits > T_digits ;
+
+       // T is signed, so take digits+1
+       typedef typename T_digits::next u_T_digits ;
+
+       typedef mpl::int_<2> Two ;
+
+       typedef typename mpl::multiplies<S_digits,Two>::type S_digits_times_2 ;
+
+       typedef typename mpl::less<u_T_digits,S_digits_times_2>::type type ;
+    } ;
+
+    // for integral to integral conversions of the same sign.
+    template<class T,class S>
+    struct subranged_SameSign
+    {
+       // An integral conversion of the same sign is subranged if digits(T) < digits(S).
+
+       typedef mpl::int_< ::std::numeric_limits<S>::digits > S_digits ;
+       typedef mpl::int_< ::std::numeric_limits<T>::digits > T_digits ;
+
+       typedef typename mpl::less<T_digits,S_digits>::type type ;
+    } ;
+
+    // for integral to float conversions
+    template<class T,class S>
+    struct subranged_Int2Float
+    {
+      typedef mpl::false_ type ;
+    } ;
+
+    // for float to integral conversions
+    template<class T,class S>
+    struct subranged_Float2Int
+    {
+      typedef mpl::true_ type ;
+    } ;
+
+    // for float to float conversions
+    template<class T,class S>
+    struct subranged_Float2Float
+    {
+      // If both T and S are floats,
+      // compare exponent bits and if they match, mantisa bits.
+
+      typedef mpl::int_< ::std::numeric_limits<S>::digits > S_mantisa ;
+      typedef mpl::int_< ::std::numeric_limits<T>::digits > T_mantisa ;
+
+      typedef mpl::int_< ::std::numeric_limits<S>::max_exponent > S_exponent ;
+      typedef mpl::int_< ::std::numeric_limits<T>::max_exponent > T_exponent ;
+
+      typedef typename mpl::less<T_exponent,S_exponent>::type T_smaller_exponent ;
+
+      typedef typename mpl::equal_to<T_exponent,S_exponent>::type equal_exponents ;
+
+      typedef mpl::less<T_mantisa,S_mantisa> T_smaller_mantisa ;
+
+      typedef mpl::eval_if<equal_exponents,T_smaller_mantisa,mpl::false_> not_bigger_exponent_case ;
+
+      typedef typename
+        mpl::eval_if<T_smaller_exponent,mpl::true_,not_bigger_exponent_case>::type
+          type ;
+    } ;
+
+    // for Udt to built-in conversions
+    template<class T,class S>
+    struct subranged_Udt2BuiltIn
+    {
+      typedef mpl::true_ type ;
+    } ;
+
+    // for built-in to Udt conversions
+    template<class T,class S>
+    struct subranged_BuiltIn2Udt
+    {
+      typedef mpl::false_ type ;
+    } ;
+
+    // for Udt to Udt conversions
+    template<class T,class S>
+    struct subranged_Udt2Udt
+    {
+      typedef mpl::false_ type ;
+    } ;
+
+  //-------------------------------------------------------------------
+  // Selectors for the implementations of the subranged predicate
+  //-------------------------------------------------------------------
+
+    template<class T,class S>
+    struct get_subranged_Int2Int
+    {
+      typedef subranged_SameSign<T,S>  Sig2Sig     ;
+      typedef subranged_Sig2Unsig<T,S> Sig2Unsig   ;
+      typedef subranged_Unsig2Sig<T,S> Unsig2Sig   ;
+      typedef Sig2Sig                  Unsig2Unsig ;
+
+      typedef typename get_sign_mixture<T,S>::type sign_mixture ;
+
+      typedef typename
+        for_sign_mixture<sign_mixture, Sig2Sig, Sig2Unsig, Unsig2Sig, Unsig2Unsig>::type
+           type ;
+    } ;
+
+    template<class T,class S>
+    struct get_subranged_BuiltIn2BuiltIn
+    {
+      typedef get_subranged_Int2Int<T,S> Int2IntQ ;
+
+      typedef subranged_Int2Float  <T,S> Int2Float   ;
+      typedef subranged_Float2Int  <T,S> Float2Int   ;
+      typedef subranged_Float2Float<T,S> Float2Float ;
+
+      typedef mpl::identity<Int2Float  > Int2FloatQ   ;
+      typedef mpl::identity<Float2Int  > Float2IntQ   ;
+      typedef mpl::identity<Float2Float> Float2FloatQ ;
+
+      typedef typename get_int_float_mixture<T,S>::type int_float_mixture ;
+
+      typedef for_int_float_mixture<int_float_mixture, Int2IntQ, Int2FloatQ, Float2IntQ, Float2FloatQ> for_ ;
+
+      typedef typename for_::type selected ;
+
+      typedef typename selected::type type ;
+    } ;
+
+    template<class T,class S>
+    struct get_subranged
+    {
+      typedef get_subranged_BuiltIn2BuiltIn<T,S> BuiltIn2BuiltInQ ;
+
+      typedef subranged_BuiltIn2Udt<T,S> BuiltIn2Udt ;
+      typedef subranged_Udt2BuiltIn<T,S> Udt2BuiltIn ;
+      typedef subranged_Udt2Udt<T,S>     Udt2Udt ;
+
+      typedef mpl::identity<BuiltIn2Udt> BuiltIn2UdtQ ;
+      typedef mpl::identity<Udt2BuiltIn> Udt2BuiltInQ ;
+      typedef mpl::identity<Udt2Udt    > Udt2UdtQ     ;
+
+      typedef typename get_udt_builtin_mixture<T,S>::type udt_builtin_mixture ;
+      
+      typedef typename
+        for_udt_builtin_mixture<udt_builtin_mixture, BuiltIn2BuiltInQ, BuiltIn2UdtQ, Udt2BuiltInQ, Udt2UdtQ>::type
+          selected ;
+
+      typedef typename selected::type selected2 ;
+ 
+      typedef typename selected2::type type ;
+    } ;
+
+
+  //-------------------------------------------------------------------
+  // Top level implementation selector.
+  //-------------------------------------------------------------------
+  template<class T, class S>
+  struct get_is_subranged
+  {
+    typedef get_subranged<T,S>         non_trivial_case ;
+    typedef mpl::identity<mpl::false_> trivial_case ;
+
+    typedef is_same<T,S> is_trivial ;
+   
+    typedef typename mpl::if_<is_trivial,trivial_case,non_trivial_case>::type selected ;
+    
+    typedef typename selected::type type ;
+  } ;
+
+} } } // namespace ndnboost::numeric::convdetail
+
+#endif
+
+
diff --git a/ndnboost/numeric/conversion/detail/meta.hpp b/ndnboost/numeric/conversion/detail/meta.hpp
new file mode 100644
index 0000000..a79d670
--- /dev/null
+++ b/ndnboost/numeric/conversion/detail/meta.hpp
@@ -0,0 +1,120 @@
+//  (c) Copyright Fernando Luis Cacciola Carballal 2000-2004
+//  Use, modification, and distribution is 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 library home page at http://www.boost.org/libs/numeric/conversion
+//
+// Contact the author at: fernando_cacciola@hotmail.com
+// 
+#ifndef BOOST_NUMERIC_CONVERSION_DETAIL_META_FLC_12NOV2002_HPP
+#define BOOST_NUMERIC_CONVERSION_DETAIL_META_FLC_12NOV2002_HPP
+
+#include "ndnboost/type_traits/remove_cv.hpp"
+
+#include "ndnboost/mpl/if.hpp"
+#include "ndnboost/mpl/eval_if.hpp"
+#include "ndnboost/mpl/equal_to.hpp"
+#include "ndnboost/mpl/not.hpp"
+#include "ndnboost/mpl/and.hpp"
+#include "ndnboost/mpl/bool.hpp"
+#include "ndnboost/mpl/identity.hpp"
+
+namespace ndnboost { namespace numeric { namespace convdetail
+{
+   template< class T1, class T2>
+   struct equal_to
+   {
+   #if !defined(__BORLANDC__)
+   
+       enum { x = ( BOOST_MPL_AUX_VALUE_WKND(T1)::value == BOOST_MPL_AUX_VALUE_WKND(T2)::value ) };
+           
+       BOOST_STATIC_CONSTANT(bool, value = x);
+           
+       typedef mpl::bool_<value> type;
+       
+   #else
+   
+       BOOST_STATIC_CONSTANT(bool, value = (
+             BOOST_MPL_AUX_VALUE_WKND(T1)::value 
+               == BOOST_MPL_AUX_VALUE_WKND(T2)::value
+           ));
+           
+       typedef mpl::bool_<(
+             BOOST_MPL_AUX_VALUE_WKND(T1)::value 
+               == BOOST_MPL_AUX_VALUE_WKND(T2)::value
+           )> type;
+   #endif
+   };
+    
+// Metafunction:
+  //
+  //   ct_switch4<Value,Case0Val,Case1Val,Case2Val,Case0Type,Case1Type,Case2Type,DefaultType>::type
+  //
+  // {Value,Case(X)Val} are Integral Constants (such as: mpl::int_<>)
+  // {Case(X)Type,DefaultType} are arbitrary types. (not metafunctions)
+  //
+  // Returns Case(X)Type if Val==Case(X)Val; DefaultType otherwise.
+  //
+  template<class Value,
+           class Case0Val,
+           class Case1Val,
+           class Case2Val,
+           class Case0Type,
+           class Case1Type,
+           class Case2Type,
+           class DefaultType
+          >
+  struct ct_switch4
+  {
+    typedef mpl::identity<Case0Type> Case0TypeQ ;
+    typedef mpl::identity<Case1Type> Case1TypeQ ;
+
+    typedef equal_to<Value,Case0Val> is_case0 ;
+    typedef equal_to<Value,Case1Val> is_case1 ;
+    typedef equal_to<Value,Case2Val> is_case2 ;
+
+    typedef mpl::if_<is_case2,Case2Type,DefaultType> choose_2_3Q ;
+    typedef mpl::eval_if<is_case1,Case1TypeQ,choose_2_3Q> choose_1_2_3Q ;
+
+    typedef typename
+      mpl::eval_if<is_case0,Case0TypeQ,choose_1_2_3Q>::type
+        type ;
+  } ;
+
+
+
+
+  // Metafunction:
+  //
+  //   for_both<expr0,expr1,TT,TF,FT,FF>::type
+  //
+  // {exp0,expr1} are Boolean Integral Constants
+  // {TT,TF,FT,FF} are aribtrary types. (not metafunctions)
+  //
+  // According to the combined boolean value of 'expr0 && expr1', selects the corresponding type.
+  //
+  template<class expr0, class expr1, class TT, class TF, class FT, class FF>
+  struct for_both
+  {
+    typedef mpl::identity<TF> TF_Q ;
+    typedef mpl::identity<TT> TT_Q ;
+
+    typedef typename mpl::not_<expr0>::type not_expr0 ;
+    typedef typename mpl::not_<expr1>::type not_expr1 ;
+
+    typedef typename mpl::and_<expr0,expr1>::type     caseTT ;
+    typedef typename mpl::and_<expr0,not_expr1>::type caseTF ;
+    typedef typename mpl::and_<not_expr0,expr1>::type caseFT ;
+
+    typedef mpl::if_<caseFT,FT,FF>                    choose_FT_FF_Q ;
+    typedef mpl::eval_if<caseTF,TF_Q,choose_FT_FF_Q> choose_TF_FT_FF_Q ;
+
+    typedef typename mpl::eval_if<caseTT,TT_Q,choose_TF_FT_FF_Q>::type type ;
+  } ;
+
+} } } // namespace ndnboost::numeric::convdetail
+
+#endif
+
+
diff --git a/ndnboost/numeric/conversion/detail/numeric_cast_traits.hpp b/ndnboost/numeric/conversion/detail/numeric_cast_traits.hpp
new file mode 100644
index 0000000..eaccf5c
--- /dev/null
+++ b/ndnboost/numeric/conversion/detail/numeric_cast_traits.hpp
@@ -0,0 +1,138 @@
+//
+//! Copyright (c) 2011-2012
+//! Brandon Kohn
+//
+//  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)
+//
+
+#if !defined(BOOST_NUMERIC_CONVERSION_DONT_USE_PREPROCESSED_FILES)
+
+    #include <ndnboost/numeric/conversion/detail/preprocessed/numeric_cast_traits_common.hpp>
+	
+	#if !defined(BOOST_NO_LONG_LONG)
+        #include <ndnboost/numeric/conversion/detail/preprocessed/numeric_cast_traits_long_long.hpp>
+	#endif
+	
+#else
+#if !BOOST_PP_IS_ITERATING
+
+    #include <ndnboost/preprocessor/seq/elem.hpp>
+    #include <ndnboost/preprocessor/seq/size.hpp>
+    #include <ndnboost/preprocessor/iteration/iterate.hpp>
+    
+    #if defined(__WAVE__) && defined(BOOST_NUMERIC_CONVERSION_CREATE_PREPROCESSED_FILES)
+        #pragma wave option(preserve: 2, line: 0, output: "preprocessed/numeric_cast_traits_common.hpp")
+    #endif
+//
+//! Copyright (c) 2011-2012
+//! Brandon Kohn
+//
+//  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)
+//
+    #if defined(__WAVE__) && defined(BOOST_NUMERIC_CONVERSION_CREATE_PREPROCESSED_FILES)
+        #pragma wave option(preserve: 1)
+    #endif
+	
+	//! These are the assumed common built in fundamental types (not typedefs/macros.)
+	#define BOOST_NUMERIC_CONVERSION_BASE_BUILTIN_TYPES() \
+        (char)                                            \
+        (signed char)                                     \
+        (unsigned char)                                   \
+        (short)                                           \
+        (unsigned short)                                  \
+        (int)                                             \
+        (unsigned int)                                    \
+        (long)                                            \
+        (unsigned long)                                   \
+        (float)                                           \
+        (double)                                          \
+        (long double)                                     \
+    /***/
+	
+    #define BOOST_NUMERIC_CONVERSION_SEQ_A() BOOST_NUMERIC_CONVERSION_BASE_BUILTIN_TYPES()
+	#define BOOST_NUMERIC_CONVERSION_SEQ_B() BOOST_NUMERIC_CONVERSION_BASE_BUILTIN_TYPES()
+
+namespace ndnboost { namespace numeric {
+
+    #define BOOST_PP_ITERATION_PARAMS_1 (3, (0, BOOST_PP_DEC(BOOST_PP_SEQ_SIZE(BOOST_NUMERIC_CONVERSION_SEQ_A())), <ndnboost/numeric/conversion/detail/numeric_cast_traits.hpp>))
+    #include BOOST_PP_ITERATE()    
+
+}}//namespace ndnboost::numeric;
+
+    #if defined(__WAVE__) && defined(BOOST_NUMERIC_CONVERSION_CREATE_PREPROCESSED_FILES)
+        #pragma wave option(output: null)
+    #endif   
+	
+	#if ( defined(__WAVE__) && defined(BOOST_NUMERIC_CONVERSION_CREATE_PREPROCESSED_FILES) ) || !defined(BOOST_NO_LONG_LONG)
+	
+	    #undef BOOST_NUMERIC_CONVERSION_SEQ_A
+	    #undef BOOST_NUMERIC_CONVERSION_SEQ_B
+
+	    #if defined(__WAVE__) && defined(BOOST_NUMERIC_CONVERSION_CREATE_PREPROCESSED_FILES)
+            #pragma wave option(preserve: 2, line: 0, output: "preprocessed/numeric_cast_traits_long_long.hpp")
+        #endif
+
+//
+//! Copyright (c) 2011-2012
+//! Brandon Kohn
+//
+//  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)
+//
+        #if defined(__WAVE__) && defined(BOOST_NUMERIC_CONVERSION_CREATE_PREPROCESSED_FILES)
+            #pragma wave option(preserve: 1)
+        #endif
+
+namespace ndnboost { namespace numeric {
+
+    #define BOOST_NUMERIC_CONVERSION_SEQ_A() BOOST_NUMERIC_CONVERSION_BASE_BUILTIN_TYPES()(ndnboost::long_long_type)(ndnboost::ulong_long_type)
+	#define BOOST_NUMERIC_CONVERSION_SEQ_B() (ndnboost::long_long_type)(ndnboost::ulong_long_type)
+    
+    #define BOOST_PP_ITERATION_PARAMS_1 (3, (0, BOOST_PP_DEC(BOOST_PP_SEQ_SIZE(BOOST_NUMERIC_CONVERSION_SEQ_A())), <ndnboost/numeric/conversion/detail/numeric_cast_traits.hpp>))
+    #include BOOST_PP_ITERATE()    
+
+}}//namespace ndnboost::numeric;
+
+        #if defined(__WAVE__) && defined(BOOST_NUMERIC_CONVERSION_CREATE_PREPROCESSED_FILES)
+            #pragma wave option(output: null)
+        #endif   
+	
+	#endif
+		
+    #undef BOOST_NUMERIC_CONVERSION_BASE_BUILTIN_TYPES
+	#undef BOOST_NUMERIC_CONVERSION_SEQ_A
+	#undef BOOST_NUMERIC_CONVERSION_SEQ_B
+    
+#elif BOOST_PP_ITERATION_DEPTH() == 1
+
+    #define BOOST_PP_ITERATION_PARAMS_2 (3, (0, BOOST_PP_DEC(BOOST_PP_SEQ_SIZE(BOOST_NUMERIC_CONVERSION_SEQ_B())), <ndnboost/numeric/conversion/detail/numeric_cast_traits.hpp>))
+    #include BOOST_PP_ITERATE()
+
+#elif BOOST_PP_ITERATION_DEPTH() == 2
+
+    //! Generate default traits for the specified source and target.
+    #define BOOST_NUMERIC_CONVERSION_A BOOST_PP_FRAME_ITERATION(1)
+    #define BOOST_NUMERIC_CONVERSION_B BOOST_PP_FRAME_ITERATION(2)
+
+    template <>
+    struct numeric_cast_traits
+        <
+            BOOST_PP_SEQ_ELEM(BOOST_NUMERIC_CONVERSION_A, BOOST_NUMERIC_CONVERSION_SEQ_A())
+          , BOOST_PP_SEQ_ELEM(BOOST_NUMERIC_CONVERSION_B, BOOST_NUMERIC_CONVERSION_SEQ_B())
+        >
+    {
+        typedef def_overflow_handler overflow_policy;
+        typedef UseInternalRangeChecker range_checking_policy;
+        typedef Trunc<BOOST_PP_SEQ_ELEM(BOOST_NUMERIC_CONVERSION_B, BOOST_NUMERIC_CONVERSION_SEQ_B())> rounding_policy;
+    };     
+
+    #undef BOOST_NUMERIC_CONVERSION_A
+    #undef BOOST_NUMERIC_CONVERSION_B
+
+#endif//! Depth 2.
+#endif// BOOST_NUMERIC_CONVERSION_DONT_USE_PREPROCESSED_FILES
diff --git a/ndnboost/numeric/conversion/detail/old_numeric_cast.hpp b/ndnboost/numeric/conversion/detail/old_numeric_cast.hpp
new file mode 100644
index 0000000..10d9596
--- /dev/null
+++ b/ndnboost/numeric/conversion/detail/old_numeric_cast.hpp
@@ -0,0 +1,339 @@
+//  boost cast.hpp header file  ----------------------------------------------//
+
+//  (C) Copyright Kevlin Henney and Dave Abrahams 1999.
+//  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/conversion for Documentation.
+
+//  Revision History
+//  23 JUN 05  Code extracted from /boost/cast.hpp into this new header.
+//             Keeps this legacy version of numeric_cast<> for old compilers
+//             wich can't compile the new version in /boost/numeric/conversion/cast.hpp
+//             (Fernando Cacciola)
+//  02 Apr 01  Removed BOOST_NO_LIMITS workarounds and included
+//             <ndnboost/limits.hpp> instead (the workaround did not
+//             actually compile when BOOST_NO_LIMITS was defined in
+//             any case, so we loose nothing). (John Maddock)
+//  21 Jan 01  Undid a bug I introduced yesterday. numeric_cast<> never
+//             worked with stock GCC; trying to get it to do that broke
+//             vc-stlport.
+//  20 Jan 01  Moved BOOST_NO_LIMITS_COMPILE_TIME_CONSTANTS to config.hpp.
+//             Removed unused BOOST_EXPLICIT_TARGET macro. Moved
+//             ndnboost::detail::type to boost/type.hpp. Made it compile with
+//             stock gcc again (Dave Abrahams)
+//  29 Nov 00  Remove nested namespace cast, cleanup spacing before Formal
+//             Review (Beman Dawes)
+//  19 Oct 00  Fix numeric_cast for floating-point types (Dave Abrahams)
+//  15 Jul 00  Suppress numeric_cast warnings for GCC, Borland and MSVC
+//             (Dave Abrahams)
+//  30 Jun 00  More MSVC6 wordarounds.  See comments below.  (Dave Abrahams)
+//  28 Jun 00  Removed implicit_cast<>.  See comment below. (Beman Dawes)
+//  27 Jun 00  More MSVC6 workarounds
+//  15 Jun 00  Add workarounds for MSVC6
+//   2 Feb 00  Remove bad_numeric_cast ";" syntax error (Doncho Angelov)
+//  26 Jan 00  Add missing throw() to bad_numeric_cast::what(0 (Adam Levar)
+//  29 Dec 99  Change using declarations so usages in other namespaces work
+//             correctly (Dave Abrahams)
+//  23 Sep 99  Change polymorphic_downcast assert to also detect M.I. errors
+//             as suggested Darin Adler and improved by Valentin Bonnard.
+//   2 Sep 99  Remove controversial asserts, simplify, rename.
+//  30 Aug 99  Move to cast.hpp, replace value_cast with numeric_cast,
+//             place in nested namespace.
+//   3 Aug 99  Initial version
+
+#ifndef BOOST_OLD_NUMERIC_CAST_HPP
+#define BOOST_OLD_NUMERIC_CAST_HPP
+
+# include <ndnboost/config.hpp>
+# include <cassert>
+# include <typeinfo>
+# include <ndnboost/type.hpp>
+# include <ndnboost/limits.hpp>
+# include <ndnboost/numeric/conversion/converter_policies.hpp>
+
+//  It has been demonstrated numerous times that MSVC 6.0 fails silently at link
+//  time if you use a template function which has template parameters that don't
+//  appear in the function's argument list.
+//
+//  TODO: Add this to config.hpp?
+//  FLC: This macro is repeated in boost/cast.hpp but only locally (is undefined at the bottom)
+//       so is OK to reproduce it here.
+# if defined(BOOST_MSVC) && BOOST_MSVC < 1300
+#  define BOOST_EXPLICIT_DEFAULT_TARGET , ::ndnboost::type<Target>* = 0
+# else
+#  define BOOST_EXPLICIT_DEFAULT_TARGET
+# endif
+
+namespace ndnboost
+{
+  using numeric::bad_numeric_cast;
+
+//  LEGACY numeric_cast [only for some old broken compilers] --------------------------------------//
+
+//  Contributed by Kevlin Henney
+
+//  numeric_cast  ------------------------------------------------------------//
+
+#if !defined(BOOST_NO_LIMITS_COMPILE_TIME_CONSTANTS) || defined(BOOST_SGI_CPP_LIMITS)
+
+    namespace detail
+    {
+      template <class T>
+      struct signed_numeric_limits : std::numeric_limits<T>
+      {
+             static inline T min BOOST_PREVENT_MACRO_SUBSTITUTION ()
+         {
+             return (std::numeric_limits<T>::min)() >= 0
+                     // unary minus causes integral promotion, thus the static_cast<>
+                     ? static_cast<T>(-(std::numeric_limits<T>::max)())
+                     : (std::numeric_limits<T>::min)();
+         };
+      };
+
+      // Move to namespace ndnboost in utility.hpp?
+      template <class T, bool specialized>
+      struct fixed_numeric_limits_base
+          : public if_true< std::numeric_limits<T>::is_signed >
+           ::BOOST_NESTED_TEMPLATE then< signed_numeric_limits<T>,
+                            std::numeric_limits<T>
+                   >::type
+      {};
+
+      template <class T>
+      struct fixed_numeric_limits
+          : fixed_numeric_limits_base<T,(std::numeric_limits<T>::is_specialized)>
+      {};
+
+# ifdef BOOST_HAS_LONG_LONG
+      // cover implementations which supply no specialization for long
+      // long / unsigned long long. Not intended to be full
+      // numeric_limits replacements, but good enough for numeric_cast<>
+      template <>
+      struct fixed_numeric_limits_base< ::ndnboost::long_long_type, false>
+      {
+          BOOST_STATIC_CONSTANT(bool, is_specialized = true);
+          BOOST_STATIC_CONSTANT(bool, is_signed = true);
+          static  ::ndnboost::long_long_type max BOOST_PREVENT_MACRO_SUBSTITUTION ()
+          {
+#  ifdef LONGLONG_MAX
+              return LONGLONG_MAX;
+#  else
+              return 9223372036854775807LL; // hope this is portable
+#  endif
+          }
+
+          static  ::ndnboost::long_long_type min BOOST_PREVENT_MACRO_SUBSTITUTION ()
+          {
+#  ifdef LONGLONG_MIN
+              return LONGLONG_MIN;
+#  else
+               return -( 9223372036854775807LL )-1; // hope this is portable
+#  endif
+          }
+      };
+
+      template <>
+      struct fixed_numeric_limits_base< ::ndnboost::ulong_long_type, false>
+      {
+          BOOST_STATIC_CONSTANT(bool, is_specialized = true);
+          BOOST_STATIC_CONSTANT(bool, is_signed = false);
+          static  ::ndnboost::ulong_long_type max BOOST_PREVENT_MACRO_SUBSTITUTION ()
+          {
+#  ifdef ULONGLONG_MAX
+              return ULONGLONG_MAX;
+#  else
+              return 0xffffffffffffffffULL; // hope this is portable
+#  endif
+          }
+
+          static  ::ndnboost::ulong_long_type min BOOST_PREVENT_MACRO_SUBSTITUTION () { return 0; }
+      };
+# endif
+    } // namespace detail
+
+// less_than_type_min -
+  //    x_is_signed should be numeric_limits<X>::is_signed
+  //    y_is_signed should be numeric_limits<Y>::is_signed
+  //    y_min should be numeric_limits<Y>::min()
+  //
+  //    check(x, y_min) returns true iff x < y_min without invoking comparisons
+  //    between signed and unsigned values.
+  //
+  //    "poor man's partial specialization" is in use here.
+    template <bool x_is_signed, bool y_is_signed>
+    struct less_than_type_min
+    {
+        template <class X, class Y>
+        static bool check(X x, Y y_min)
+            { return x < y_min; }
+    };
+
+    template <>
+    struct less_than_type_min<false, true>
+    {
+        template <class X, class Y>
+        static bool check(X, Y)
+            { return false; }
+    };
+
+    template <>
+    struct less_than_type_min<true, false>
+    {
+        template <class X, class Y>
+        static bool check(X x, Y)
+            { return x < 0; }
+    };
+
+  // greater_than_type_max -
+  //    same_sign should be:
+  //            numeric_limits<X>::is_signed == numeric_limits<Y>::is_signed
+  //    y_max should be numeric_limits<Y>::max()
+  //
+  //    check(x, y_max) returns true iff x > y_max without invoking comparisons
+  //    between signed and unsigned values.
+  //
+  //    "poor man's partial specialization" is in use here.
+    template <bool same_sign, bool x_is_signed>
+    struct greater_than_type_max;
+
+    template<>
+    struct greater_than_type_max<true, true>
+    {
+        template <class X, class Y>
+        static inline bool check(X x, Y y_max)
+            { return x > y_max; }
+    };
+
+    template <>
+    struct greater_than_type_max<false, true>
+    {
+        // What does the standard say about this? I think it's right, and it
+        // will work with every compiler I know of.
+        template <class X, class Y>
+        static inline bool check(X x, Y)
+            { return x >= 0 && static_cast<X>(static_cast<Y>(x)) != x; }
+
+# if defined(BOOST_MSVC) && BOOST_MSVC < 1300
+        // MSVC6 can't static_cast  unsigned __int64 -> floating types
+#  define BOOST_UINT64_CAST(src_type)                                   \
+        static inline bool check(src_type x, unsigned __int64)          \
+        {                                                               \
+            if (x < 0) return false;                                    \
+            unsigned __int64 y = static_cast<unsigned __int64>(x);      \
+            bool odd = y & 0x1;                                         \
+            __int64 div2 = static_cast<__int64>(y >> 1);                \
+            return ((static_cast<src_type>(div2) * 2.0) + odd) != x;    \
+        }
+
+        BOOST_UINT64_CAST(long double);
+        BOOST_UINT64_CAST(double);
+        BOOST_UINT64_CAST(float);
+#  undef BOOST_UINT64_CAST
+# endif
+    };
+
+    template<>
+    struct greater_than_type_max<true, false>
+    {
+        template <class X, class Y>
+        static inline bool check(X x, Y y_max)
+            { return x > y_max; }
+    };
+
+    template <>
+    struct greater_than_type_max<false, false>
+    {
+        // What does the standard say about this? I think it's right, and it
+        // will work with every compiler I know of.
+        template <class X, class Y>
+        static inline bool check(X x, Y)
+            { return static_cast<X>(static_cast<Y>(x)) != x; }
+    };
+
+#else // use #pragma hacks if available
+
+  namespace detail
+  {
+# if BOOST_MSVC
+#  pragma warning(push)
+#  pragma warning(disable : 4018)
+#  pragma warning(disable : 4146)
+#elif defined(__BORLANDC__)
+#  pragma option push -w-8041
+# endif
+
+       // Move to namespace ndnboost in utility.hpp?
+       template <class T>
+       struct fixed_numeric_limits : public std::numeric_limits<T>
+       {
+           static inline T min BOOST_PREVENT_MACRO_SUBSTITUTION ()
+           {
+               return std::numeric_limits<T>::is_signed && (std::numeric_limits<T>::min)() >= 0
+                   ? T(-(std::numeric_limits<T>::max)()) : (std::numeric_limits<T>::min)();
+           }
+       };
+
+# if BOOST_MSVC
+#  pragma warning(pop)
+#elif defined(__BORLANDC__)
+#  pragma option pop
+# endif
+  } // namespace detail
+
+#endif
+
+    template<typename Target, typename Source>
+    inline Target numeric_cast(Source arg BOOST_EXPLICIT_DEFAULT_TARGET)
+    {
+        // typedefs abbreviating respective trait classes
+        typedef detail::fixed_numeric_limits<Source> arg_traits;
+        typedef detail::fixed_numeric_limits<Target> result_traits;
+
+#if defined(BOOST_STRICT_CONFIG) \
+    || (!defined(__HP_aCC) || __HP_aCC > 33900) \
+         && (!defined(BOOST_NO_LIMITS_COMPILE_TIME_CONSTANTS) \
+             || defined(BOOST_SGI_CPP_LIMITS))
+        // typedefs that act as compile time assertions
+        // (to be replaced by boost compile time assertions
+        // as and when they become available and are stable)
+        typedef bool argument_must_be_numeric[arg_traits::is_specialized];
+        typedef bool result_must_be_numeric[result_traits::is_specialized];
+
+        const bool arg_is_signed = arg_traits::is_signed;
+        const bool result_is_signed = result_traits::is_signed;
+        const bool same_sign = arg_is_signed == result_is_signed;
+
+        if (less_than_type_min<arg_is_signed, result_is_signed>::check(arg, (result_traits::min)())
+            || greater_than_type_max<same_sign, arg_is_signed>::check(arg, (result_traits::max)())
+            )
+
+#else // We need to use #pragma hacks if available
+
+# if BOOST_MSVC
+#  pragma warning(push)
+#  pragma warning(disable : 4018)
+#elif defined(__BORLANDC__)
+#pragma option push -w-8012
+# endif
+        if ((arg < 0 && !result_traits::is_signed)  // loss of negative range
+             || (arg_traits::is_signed && arg < (result_traits::min)())  // underflow
+             || arg > (result_traits::max)())            // overflow
+# if BOOST_MSVC
+#  pragma warning(pop)
+#elif defined(__BORLANDC__)
+#pragma option pop
+# endif
+#endif
+        {
+            throw bad_numeric_cast();
+        }
+        return static_cast<Target>(arg);
+    } // numeric_cast
+
+#  undef BOOST_EXPLICIT_DEFAULT_TARGET
+
+} // namespace ndnboost
+
+#endif  // BOOST_OLD_NUMERIC_CAST_HPP
diff --git a/ndnboost/numeric/conversion/detail/preprocessed/numeric_cast_traits_common.hpp b/ndnboost/numeric/conversion/detail/preprocessed/numeric_cast_traits_common.hpp
new file mode 100644
index 0000000..48eee6a
--- /dev/null
+++ b/ndnboost/numeric/conversion/detail/preprocessed/numeric_cast_traits_common.hpp
@@ -0,0 +1,1741 @@
+//
+//! Copyright (c) 2011-2012
+//! Brandon Kohn
+//
+//  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)
+//
+	
+	
+	
+namespace ndnboost { namespace numeric {
+    
+    template <>
+    struct numeric_cast_traits
+        <
+            char
+          , char
+        >
+    {
+        typedef def_overflow_handler overflow_policy;
+        typedef UseInternalRangeChecker range_checking_policy;
+        typedef Trunc<char> rounding_policy;
+    }; 
+    
+    template <>
+    struct numeric_cast_traits
+        <
+            char
+          , signed char
+        >
+    {
+        typedef def_overflow_handler overflow_policy;
+        typedef UseInternalRangeChecker range_checking_policy;
+        typedef Trunc<signed char> rounding_policy;
+    }; 
+    
+    template <>
+    struct numeric_cast_traits
+        <
+            char
+          , unsigned char
+        >
+    {
+        typedef def_overflow_handler overflow_policy;
+        typedef UseInternalRangeChecker range_checking_policy;
+        typedef Trunc<unsigned char> rounding_policy;
+    }; 
+    
+    template <>
+    struct numeric_cast_traits
+        <
+            char
+          , short
+        >
+    {
+        typedef def_overflow_handler overflow_policy;
+        typedef UseInternalRangeChecker range_checking_policy;
+        typedef Trunc<short> rounding_policy;
+    }; 
+    
+    template <>
+    struct numeric_cast_traits
+        <
+            char
+          , unsigned short
+        >
+    {
+        typedef def_overflow_handler overflow_policy;
+        typedef UseInternalRangeChecker range_checking_policy;
+        typedef Trunc<unsigned short> rounding_policy;
+    }; 
+    
+    template <>
+    struct numeric_cast_traits
+        <
+            char
+          , int
+        >
+    {
+        typedef def_overflow_handler overflow_policy;
+        typedef UseInternalRangeChecker range_checking_policy;
+        typedef Trunc<int> rounding_policy;
+    }; 
+    
+    template <>
+    struct numeric_cast_traits
+        <
+            char
+          , unsigned int
+        >
+    {
+        typedef def_overflow_handler overflow_policy;
+        typedef UseInternalRangeChecker range_checking_policy;
+        typedef Trunc<unsigned int> rounding_policy;
+    }; 
+    
+    template <>
+    struct numeric_cast_traits
+        <
+            char
+          , long
+        >
+    {
+        typedef def_overflow_handler overflow_policy;
+        typedef UseInternalRangeChecker range_checking_policy;
+        typedef Trunc<long> rounding_policy;
+    }; 
+    
+    template <>
+    struct numeric_cast_traits
+        <
+            char
+          , unsigned long
+        >
+    {
+        typedef def_overflow_handler overflow_policy;
+        typedef UseInternalRangeChecker range_checking_policy;
+        typedef Trunc<unsigned long> rounding_policy;
+    }; 
+    
+    template <>
+    struct numeric_cast_traits
+        <
+            char
+          , float
+        >
+    {
+        typedef def_overflow_handler overflow_policy;
+        typedef UseInternalRangeChecker range_checking_policy;
+        typedef Trunc<float> rounding_policy;
+    }; 
+    
+    template <>
+    struct numeric_cast_traits
+        <
+            char
+          , double
+        >
+    {
+        typedef def_overflow_handler overflow_policy;
+        typedef UseInternalRangeChecker range_checking_policy;
+        typedef Trunc<double> rounding_policy;
+    }; 
+    
+    template <>
+    struct numeric_cast_traits
+        <
+            char
+          , long double
+        >
+    {
+        typedef def_overflow_handler overflow_policy;
+        typedef UseInternalRangeChecker range_checking_policy;
+        typedef Trunc<long double> rounding_policy;
+    }; 
+    
+    template <>
+    struct numeric_cast_traits
+        <
+            signed char
+          , char
+        >
+    {
+        typedef def_overflow_handler overflow_policy;
+        typedef UseInternalRangeChecker range_checking_policy;
+        typedef Trunc<char> rounding_policy;
+    }; 
+    
+    template <>
+    struct numeric_cast_traits
+        <
+            signed char
+          , signed char
+        >
+    {
+        typedef def_overflow_handler overflow_policy;
+        typedef UseInternalRangeChecker range_checking_policy;
+        typedef Trunc<signed char> rounding_policy;
+    }; 
+    
+    template <>
+    struct numeric_cast_traits
+        <
+            signed char
+          , unsigned char
+        >
+    {
+        typedef def_overflow_handler overflow_policy;
+        typedef UseInternalRangeChecker range_checking_policy;
+        typedef Trunc<unsigned char> rounding_policy;
+    }; 
+    
+    template <>
+    struct numeric_cast_traits
+        <
+            signed char
+          , short
+        >
+    {
+        typedef def_overflow_handler overflow_policy;
+        typedef UseInternalRangeChecker range_checking_policy;
+        typedef Trunc<short> rounding_policy;
+    }; 
+    
+    template <>
+    struct numeric_cast_traits
+        <
+            signed char
+          , unsigned short
+        >
+    {
+        typedef def_overflow_handler overflow_policy;
+        typedef UseInternalRangeChecker range_checking_policy;
+        typedef Trunc<unsigned short> rounding_policy;
+    }; 
+    
+    template <>
+    struct numeric_cast_traits
+        <
+            signed char
+          , int
+        >
+    {
+        typedef def_overflow_handler overflow_policy;
+        typedef UseInternalRangeChecker range_checking_policy;
+        typedef Trunc<int> rounding_policy;
+    }; 
+    
+    template <>
+    struct numeric_cast_traits
+        <
+            signed char
+          , unsigned int
+        >
+    {
+        typedef def_overflow_handler overflow_policy;
+        typedef UseInternalRangeChecker range_checking_policy;
+        typedef Trunc<unsigned int> rounding_policy;
+    }; 
+    
+    template <>
+    struct numeric_cast_traits
+        <
+            signed char
+          , long
+        >
+    {
+        typedef def_overflow_handler overflow_policy;
+        typedef UseInternalRangeChecker range_checking_policy;
+        typedef Trunc<long> rounding_policy;
+    }; 
+    
+    template <>
+    struct numeric_cast_traits
+        <
+            signed char
+          , unsigned long
+        >
+    {
+        typedef def_overflow_handler overflow_policy;
+        typedef UseInternalRangeChecker range_checking_policy;
+        typedef Trunc<unsigned long> rounding_policy;
+    }; 
+    
+    template <>
+    struct numeric_cast_traits
+        <
+            signed char
+          , float
+        >
+    {
+        typedef def_overflow_handler overflow_policy;
+        typedef UseInternalRangeChecker range_checking_policy;
+        typedef Trunc<float> rounding_policy;
+    }; 
+    
+    template <>
+    struct numeric_cast_traits
+        <
+            signed char
+          , double
+        >
+    {
+        typedef def_overflow_handler overflow_policy;
+        typedef UseInternalRangeChecker range_checking_policy;
+        typedef Trunc<double> rounding_policy;
+    }; 
+    
+    template <>
+    struct numeric_cast_traits
+        <
+            signed char
+          , long double
+        >
+    {
+        typedef def_overflow_handler overflow_policy;
+        typedef UseInternalRangeChecker range_checking_policy;
+        typedef Trunc<long double> rounding_policy;
+    }; 
+    
+    template <>
+    struct numeric_cast_traits
+        <
+            unsigned char
+          , char
+        >
+    {
+        typedef def_overflow_handler overflow_policy;
+        typedef UseInternalRangeChecker range_checking_policy;
+        typedef Trunc<char> rounding_policy;
+    }; 
+    
+    template <>
+    struct numeric_cast_traits
+        <
+            unsigned char
+          , signed char
+        >
+    {
+        typedef def_overflow_handler overflow_policy;
+        typedef UseInternalRangeChecker range_checking_policy;
+        typedef Trunc<signed char> rounding_policy;
+    }; 
+    
+    template <>
+    struct numeric_cast_traits
+        <
+            unsigned char
+          , unsigned char
+        >
+    {
+        typedef def_overflow_handler overflow_policy;
+        typedef UseInternalRangeChecker range_checking_policy;
+        typedef Trunc<unsigned char> rounding_policy;
+    }; 
+    
+    template <>
+    struct numeric_cast_traits
+        <
+            unsigned char
+          , short
+        >
+    {
+        typedef def_overflow_handler overflow_policy;
+        typedef UseInternalRangeChecker range_checking_policy;
+        typedef Trunc<short> rounding_policy;
+    }; 
+    
+    template <>
+    struct numeric_cast_traits
+        <
+            unsigned char
+          , unsigned short
+        >
+    {
+        typedef def_overflow_handler overflow_policy;
+        typedef UseInternalRangeChecker range_checking_policy;
+        typedef Trunc<unsigned short> rounding_policy;
+    }; 
+    
+    template <>
+    struct numeric_cast_traits
+        <
+            unsigned char
+          , int
+        >
+    {
+        typedef def_overflow_handler overflow_policy;
+        typedef UseInternalRangeChecker range_checking_policy;
+        typedef Trunc<int> rounding_policy;
+    }; 
+    
+    template <>
+    struct numeric_cast_traits
+        <
+            unsigned char
+          , unsigned int
+        >
+    {
+        typedef def_overflow_handler overflow_policy;
+        typedef UseInternalRangeChecker range_checking_policy;
+        typedef Trunc<unsigned int> rounding_policy;
+    }; 
+    
+    template <>
+    struct numeric_cast_traits
+        <
+            unsigned char
+          , long
+        >
+    {
+        typedef def_overflow_handler overflow_policy;
+        typedef UseInternalRangeChecker range_checking_policy;
+        typedef Trunc<long> rounding_policy;
+    }; 
+    
+    template <>
+    struct numeric_cast_traits
+        <
+            unsigned char
+          , unsigned long
+        >
+    {
+        typedef def_overflow_handler overflow_policy;
+        typedef UseInternalRangeChecker range_checking_policy;
+        typedef Trunc<unsigned long> rounding_policy;
+    }; 
+    
+    template <>
+    struct numeric_cast_traits
+        <
+            unsigned char
+          , float
+        >
+    {
+        typedef def_overflow_handler overflow_policy;
+        typedef UseInternalRangeChecker range_checking_policy;
+        typedef Trunc<float> rounding_policy;
+    }; 
+    
+    template <>
+    struct numeric_cast_traits
+        <
+            unsigned char
+          , double
+        >
+    {
+        typedef def_overflow_handler overflow_policy;
+        typedef UseInternalRangeChecker range_checking_policy;
+        typedef Trunc<double> rounding_policy;
+    }; 
+    
+    template <>
+    struct numeric_cast_traits
+        <
+            unsigned char
+          , long double
+        >
+    {
+        typedef def_overflow_handler overflow_policy;
+        typedef UseInternalRangeChecker range_checking_policy;
+        typedef Trunc<long double> rounding_policy;
+    }; 
+    
+    template <>
+    struct numeric_cast_traits
+        <
+            short
+          , char
+        >
+    {
+        typedef def_overflow_handler overflow_policy;
+        typedef UseInternalRangeChecker range_checking_policy;
+        typedef Trunc<char> rounding_policy;
+    }; 
+    
+    template <>
+    struct numeric_cast_traits
+        <
+            short
+          , signed char
+        >
+    {
+        typedef def_overflow_handler overflow_policy;
+        typedef UseInternalRangeChecker range_checking_policy;
+        typedef Trunc<signed char> rounding_policy;
+    }; 
+    
+    template <>
+    struct numeric_cast_traits
+        <
+            short
+          , unsigned char
+        >
+    {
+        typedef def_overflow_handler overflow_policy;
+        typedef UseInternalRangeChecker range_checking_policy;
+        typedef Trunc<unsigned char> rounding_policy;
+    }; 
+    
+    template <>
+    struct numeric_cast_traits
+        <
+            short
+          , short
+        >
+    {
+        typedef def_overflow_handler overflow_policy;
+        typedef UseInternalRangeChecker range_checking_policy;
+        typedef Trunc<short> rounding_policy;
+    }; 
+    
+    template <>
+    struct numeric_cast_traits
+        <
+            short
+          , unsigned short
+        >
+    {
+        typedef def_overflow_handler overflow_policy;
+        typedef UseInternalRangeChecker range_checking_policy;
+        typedef Trunc<unsigned short> rounding_policy;
+    }; 
+    
+    template <>
+    struct numeric_cast_traits
+        <
+            short
+          , int
+        >
+    {
+        typedef def_overflow_handler overflow_policy;
+        typedef UseInternalRangeChecker range_checking_policy;
+        typedef Trunc<int> rounding_policy;
+    }; 
+    
+    template <>
+    struct numeric_cast_traits
+        <
+            short
+          , unsigned int
+        >
+    {
+        typedef def_overflow_handler overflow_policy;
+        typedef UseInternalRangeChecker range_checking_policy;
+        typedef Trunc<unsigned int> rounding_policy;
+    }; 
+    
+    template <>
+    struct numeric_cast_traits
+        <
+            short
+          , long
+        >
+    {
+        typedef def_overflow_handler overflow_policy;
+        typedef UseInternalRangeChecker range_checking_policy;
+        typedef Trunc<long> rounding_policy;
+    }; 
+    
+    template <>
+    struct numeric_cast_traits
+        <
+            short
+          , unsigned long
+        >
+    {
+        typedef def_overflow_handler overflow_policy;
+        typedef UseInternalRangeChecker range_checking_policy;
+        typedef Trunc<unsigned long> rounding_policy;
+    }; 
+    
+    template <>
+    struct numeric_cast_traits
+        <
+            short
+          , float
+        >
+    {
+        typedef def_overflow_handler overflow_policy;
+        typedef UseInternalRangeChecker range_checking_policy;
+        typedef Trunc<float> rounding_policy;
+    }; 
+    
+    template <>
+    struct numeric_cast_traits
+        <
+            short
+          , double
+        >
+    {
+        typedef def_overflow_handler overflow_policy;
+        typedef UseInternalRangeChecker range_checking_policy;
+        typedef Trunc<double> rounding_policy;
+    }; 
+    
+    template <>
+    struct numeric_cast_traits
+        <
+            short
+          , long double
+        >
+    {
+        typedef def_overflow_handler overflow_policy;
+        typedef UseInternalRangeChecker range_checking_policy;
+        typedef Trunc<long double> rounding_policy;
+    }; 
+    
+    template <>
+    struct numeric_cast_traits
+        <
+            unsigned short
+          , char
+        >
+    {
+        typedef def_overflow_handler overflow_policy;
+        typedef UseInternalRangeChecker range_checking_policy;
+        typedef Trunc<char> rounding_policy;
+    }; 
+    
+    template <>
+    struct numeric_cast_traits
+        <
+            unsigned short
+          , signed char
+        >
+    {
+        typedef def_overflow_handler overflow_policy;
+        typedef UseInternalRangeChecker range_checking_policy;
+        typedef Trunc<signed char> rounding_policy;
+    }; 
+    
+    template <>
+    struct numeric_cast_traits
+        <
+            unsigned short
+          , unsigned char
+        >
+    {
+        typedef def_overflow_handler overflow_policy;
+        typedef UseInternalRangeChecker range_checking_policy;
+        typedef Trunc<unsigned char> rounding_policy;
+    }; 
+    
+    template <>
+    struct numeric_cast_traits
+        <
+            unsigned short
+          , short
+        >
+    {
+        typedef def_overflow_handler overflow_policy;
+        typedef UseInternalRangeChecker range_checking_policy;
+        typedef Trunc<short> rounding_policy;
+    }; 
+    
+    template <>
+    struct numeric_cast_traits
+        <
+            unsigned short
+          , unsigned short
+        >
+    {
+        typedef def_overflow_handler overflow_policy;
+        typedef UseInternalRangeChecker range_checking_policy;
+        typedef Trunc<unsigned short> rounding_policy;
+    }; 
+    
+    template <>
+    struct numeric_cast_traits
+        <
+            unsigned short
+          , int
+        >
+    {
+        typedef def_overflow_handler overflow_policy;
+        typedef UseInternalRangeChecker range_checking_policy;
+        typedef Trunc<int> rounding_policy;
+    }; 
+    
+    template <>
+    struct numeric_cast_traits
+        <
+            unsigned short
+          , unsigned int
+        >
+    {
+        typedef def_overflow_handler overflow_policy;
+        typedef UseInternalRangeChecker range_checking_policy;
+        typedef Trunc<unsigned int> rounding_policy;
+    }; 
+    
+    template <>
+    struct numeric_cast_traits
+        <
+            unsigned short
+          , long
+        >
+    {
+        typedef def_overflow_handler overflow_policy;
+        typedef UseInternalRangeChecker range_checking_policy;
+        typedef Trunc<long> rounding_policy;
+    }; 
+    
+    template <>
+    struct numeric_cast_traits
+        <
+            unsigned short
+          , unsigned long
+        >
+    {
+        typedef def_overflow_handler overflow_policy;
+        typedef UseInternalRangeChecker range_checking_policy;
+        typedef Trunc<unsigned long> rounding_policy;
+    }; 
+    
+    template <>
+    struct numeric_cast_traits
+        <
+            unsigned short
+          , float
+        >
+    {
+        typedef def_overflow_handler overflow_policy;
+        typedef UseInternalRangeChecker range_checking_policy;
+        typedef Trunc<float> rounding_policy;
+    }; 
+    
+    template <>
+    struct numeric_cast_traits
+        <
+            unsigned short
+          , double
+        >
+    {
+        typedef def_overflow_handler overflow_policy;
+        typedef UseInternalRangeChecker range_checking_policy;
+        typedef Trunc<double> rounding_policy;
+    }; 
+    
+    template <>
+    struct numeric_cast_traits
+        <
+            unsigned short
+          , long double
+        >
+    {
+        typedef def_overflow_handler overflow_policy;
+        typedef UseInternalRangeChecker range_checking_policy;
+        typedef Trunc<long double> rounding_policy;
+    }; 
+    
+    template <>
+    struct numeric_cast_traits
+        <
+            int
+          , char
+        >
+    {
+        typedef def_overflow_handler overflow_policy;
+        typedef UseInternalRangeChecker range_checking_policy;
+        typedef Trunc<char> rounding_policy;
+    }; 
+    
+    template <>
+    struct numeric_cast_traits
+        <
+            int
+          , signed char
+        >
+    {
+        typedef def_overflow_handler overflow_policy;
+        typedef UseInternalRangeChecker range_checking_policy;
+        typedef Trunc<signed char> rounding_policy;
+    }; 
+    
+    template <>
+    struct numeric_cast_traits
+        <
+            int
+          , unsigned char
+        >
+    {
+        typedef def_overflow_handler overflow_policy;
+        typedef UseInternalRangeChecker range_checking_policy;
+        typedef Trunc<unsigned char> rounding_policy;
+    }; 
+    
+    template <>
+    struct numeric_cast_traits
+        <
+            int
+          , short
+        >
+    {
+        typedef def_overflow_handler overflow_policy;
+        typedef UseInternalRangeChecker range_checking_policy;
+        typedef Trunc<short> rounding_policy;
+    }; 
+    
+    template <>
+    struct numeric_cast_traits
+        <
+            int
+          , unsigned short
+        >
+    {
+        typedef def_overflow_handler overflow_policy;
+        typedef UseInternalRangeChecker range_checking_policy;
+        typedef Trunc<unsigned short> rounding_policy;
+    }; 
+    
+    template <>
+    struct numeric_cast_traits
+        <
+            int
+          , int
+        >
+    {
+        typedef def_overflow_handler overflow_policy;
+        typedef UseInternalRangeChecker range_checking_policy;
+        typedef Trunc<int> rounding_policy;
+    }; 
+    
+    template <>
+    struct numeric_cast_traits
+        <
+            int
+          , unsigned int
+        >
+    {
+        typedef def_overflow_handler overflow_policy;
+        typedef UseInternalRangeChecker range_checking_policy;
+        typedef Trunc<unsigned int> rounding_policy;
+    }; 
+    
+    template <>
+    struct numeric_cast_traits
+        <
+            int
+          , long
+        >
+    {
+        typedef def_overflow_handler overflow_policy;
+        typedef UseInternalRangeChecker range_checking_policy;
+        typedef Trunc<long> rounding_policy;
+    }; 
+    
+    template <>
+    struct numeric_cast_traits
+        <
+            int
+          , unsigned long
+        >
+    {
+        typedef def_overflow_handler overflow_policy;
+        typedef UseInternalRangeChecker range_checking_policy;
+        typedef Trunc<unsigned long> rounding_policy;
+    }; 
+    
+    template <>
+    struct numeric_cast_traits
+        <
+            int
+          , float
+        >
+    {
+        typedef def_overflow_handler overflow_policy;
+        typedef UseInternalRangeChecker range_checking_policy;
+        typedef Trunc<float> rounding_policy;
+    }; 
+    
+    template <>
+    struct numeric_cast_traits
+        <
+            int
+          , double
+        >
+    {
+        typedef def_overflow_handler overflow_policy;
+        typedef UseInternalRangeChecker range_checking_policy;
+        typedef Trunc<double> rounding_policy;
+    }; 
+    
+    template <>
+    struct numeric_cast_traits
+        <
+            int
+          , long double
+        >
+    {
+        typedef def_overflow_handler overflow_policy;
+        typedef UseInternalRangeChecker range_checking_policy;
+        typedef Trunc<long double> rounding_policy;
+    }; 
+    
+    template <>
+    struct numeric_cast_traits
+        <
+            unsigned int
+          , char
+        >
+    {
+        typedef def_overflow_handler overflow_policy;
+        typedef UseInternalRangeChecker range_checking_policy;
+        typedef Trunc<char> rounding_policy;
+    }; 
+    
+    template <>
+    struct numeric_cast_traits
+        <
+            unsigned int
+          , signed char
+        >
+    {
+        typedef def_overflow_handler overflow_policy;
+        typedef UseInternalRangeChecker range_checking_policy;
+        typedef Trunc<signed char> rounding_policy;
+    }; 
+    
+    template <>
+    struct numeric_cast_traits
+        <
+            unsigned int
+          , unsigned char
+        >
+    {
+        typedef def_overflow_handler overflow_policy;
+        typedef UseInternalRangeChecker range_checking_policy;
+        typedef Trunc<unsigned char> rounding_policy;
+    }; 
+    
+    template <>
+    struct numeric_cast_traits
+        <
+            unsigned int
+          , short
+        >
+    {
+        typedef def_overflow_handler overflow_policy;
+        typedef UseInternalRangeChecker range_checking_policy;
+        typedef Trunc<short> rounding_policy;
+    }; 
+    
+    template <>
+    struct numeric_cast_traits
+        <
+            unsigned int
+          , unsigned short
+        >
+    {
+        typedef def_overflow_handler overflow_policy;
+        typedef UseInternalRangeChecker range_checking_policy;
+        typedef Trunc<unsigned short> rounding_policy;
+    }; 
+    
+    template <>
+    struct numeric_cast_traits
+        <
+            unsigned int
+          , int
+        >
+    {
+        typedef def_overflow_handler overflow_policy;
+        typedef UseInternalRangeChecker range_checking_policy;
+        typedef Trunc<int> rounding_policy;
+    }; 
+    
+    template <>
+    struct numeric_cast_traits
+        <
+            unsigned int
+          , unsigned int
+        >
+    {
+        typedef def_overflow_handler overflow_policy;
+        typedef UseInternalRangeChecker range_checking_policy;
+        typedef Trunc<unsigned int> rounding_policy;
+    }; 
+    
+    template <>
+    struct numeric_cast_traits
+        <
+            unsigned int
+          , long
+        >
+    {
+        typedef def_overflow_handler overflow_policy;
+        typedef UseInternalRangeChecker range_checking_policy;
+        typedef Trunc<long> rounding_policy;
+    }; 
+    
+    template <>
+    struct numeric_cast_traits
+        <
+            unsigned int
+          , unsigned long
+        >
+    {
+        typedef def_overflow_handler overflow_policy;
+        typedef UseInternalRangeChecker range_checking_policy;
+        typedef Trunc<unsigned long> rounding_policy;
+    }; 
+    
+    template <>
+    struct numeric_cast_traits
+        <
+            unsigned int
+          , float
+        >
+    {
+        typedef def_overflow_handler overflow_policy;
+        typedef UseInternalRangeChecker range_checking_policy;
+        typedef Trunc<float> rounding_policy;
+    }; 
+    
+    template <>
+    struct numeric_cast_traits
+        <
+            unsigned int
+          , double
+        >
+    {
+        typedef def_overflow_handler overflow_policy;
+        typedef UseInternalRangeChecker range_checking_policy;
+        typedef Trunc<double> rounding_policy;
+    }; 
+    
+    template <>
+    struct numeric_cast_traits
+        <
+            unsigned int
+          , long double
+        >
+    {
+        typedef def_overflow_handler overflow_policy;
+        typedef UseInternalRangeChecker range_checking_policy;
+        typedef Trunc<long double> rounding_policy;
+    }; 
+    
+    template <>
+    struct numeric_cast_traits
+        <
+            long
+          , char
+        >
+    {
+        typedef def_overflow_handler overflow_policy;
+        typedef UseInternalRangeChecker range_checking_policy;
+        typedef Trunc<char> rounding_policy;
+    }; 
+    
+    template <>
+    struct numeric_cast_traits
+        <
+            long
+          , signed char
+        >
+    {
+        typedef def_overflow_handler overflow_policy;
+        typedef UseInternalRangeChecker range_checking_policy;
+        typedef Trunc<signed char> rounding_policy;
+    }; 
+    
+    template <>
+    struct numeric_cast_traits
+        <
+            long
+          , unsigned char
+        >
+    {
+        typedef def_overflow_handler overflow_policy;
+        typedef UseInternalRangeChecker range_checking_policy;
+        typedef Trunc<unsigned char> rounding_policy;
+    }; 
+    
+    template <>
+    struct numeric_cast_traits
+        <
+            long
+          , short
+        >
+    {
+        typedef def_overflow_handler overflow_policy;
+        typedef UseInternalRangeChecker range_checking_policy;
+        typedef Trunc<short> rounding_policy;
+    }; 
+    
+    template <>
+    struct numeric_cast_traits
+        <
+            long
+          , unsigned short
+        >
+    {
+        typedef def_overflow_handler overflow_policy;
+        typedef UseInternalRangeChecker range_checking_policy;
+        typedef Trunc<unsigned short> rounding_policy;
+    }; 
+    
+    template <>
+    struct numeric_cast_traits
+        <
+            long
+          , int
+        >
+    {
+        typedef def_overflow_handler overflow_policy;
+        typedef UseInternalRangeChecker range_checking_policy;
+        typedef Trunc<int> rounding_policy;
+    }; 
+    
+    template <>
+    struct numeric_cast_traits
+        <
+            long
+          , unsigned int
+        >
+    {
+        typedef def_overflow_handler overflow_policy;
+        typedef UseInternalRangeChecker range_checking_policy;
+        typedef Trunc<unsigned int> rounding_policy;
+    }; 
+    
+    template <>
+    struct numeric_cast_traits
+        <
+            long
+          , long
+        >
+    {
+        typedef def_overflow_handler overflow_policy;
+        typedef UseInternalRangeChecker range_checking_policy;
+        typedef Trunc<long> rounding_policy;
+    }; 
+    
+    template <>
+    struct numeric_cast_traits
+        <
+            long
+          , unsigned long
+        >
+    {
+        typedef def_overflow_handler overflow_policy;
+        typedef UseInternalRangeChecker range_checking_policy;
+        typedef Trunc<unsigned long> rounding_policy;
+    }; 
+    
+    template <>
+    struct numeric_cast_traits
+        <
+            long
+          , float
+        >
+    {
+        typedef def_overflow_handler overflow_policy;
+        typedef UseInternalRangeChecker range_checking_policy;
+        typedef Trunc<float> rounding_policy;
+    }; 
+    
+    template <>
+    struct numeric_cast_traits
+        <
+            long
+          , double
+        >
+    {
+        typedef def_overflow_handler overflow_policy;
+        typedef UseInternalRangeChecker range_checking_policy;
+        typedef Trunc<double> rounding_policy;
+    }; 
+    
+    template <>
+    struct numeric_cast_traits
+        <
+            long
+          , long double
+        >
+    {
+        typedef def_overflow_handler overflow_policy;
+        typedef UseInternalRangeChecker range_checking_policy;
+        typedef Trunc<long double> rounding_policy;
+    }; 
+    
+    template <>
+    struct numeric_cast_traits
+        <
+            unsigned long
+          , char
+        >
+    {
+        typedef def_overflow_handler overflow_policy;
+        typedef UseInternalRangeChecker range_checking_policy;
+        typedef Trunc<char> rounding_policy;
+    }; 
+    
+    template <>
+    struct numeric_cast_traits
+        <
+            unsigned long
+          , signed char
+        >
+    {
+        typedef def_overflow_handler overflow_policy;
+        typedef UseInternalRangeChecker range_checking_policy;
+        typedef Trunc<signed char> rounding_policy;
+    }; 
+    
+    template <>
+    struct numeric_cast_traits
+        <
+            unsigned long
+          , unsigned char
+        >
+    {
+        typedef def_overflow_handler overflow_policy;
+        typedef UseInternalRangeChecker range_checking_policy;
+        typedef Trunc<unsigned char> rounding_policy;
+    }; 
+    
+    template <>
+    struct numeric_cast_traits
+        <
+            unsigned long
+          , short
+        >
+    {
+        typedef def_overflow_handler overflow_policy;
+        typedef UseInternalRangeChecker range_checking_policy;
+        typedef Trunc<short> rounding_policy;
+    }; 
+    
+    template <>
+    struct numeric_cast_traits
+        <
+            unsigned long
+          , unsigned short
+        >
+    {
+        typedef def_overflow_handler overflow_policy;
+        typedef UseInternalRangeChecker range_checking_policy;
+        typedef Trunc<unsigned short> rounding_policy;
+    }; 
+    
+    template <>
+    struct numeric_cast_traits
+        <
+            unsigned long
+          , int
+        >
+    {
+        typedef def_overflow_handler overflow_policy;
+        typedef UseInternalRangeChecker range_checking_policy;
+        typedef Trunc<int> rounding_policy;
+    }; 
+    
+    template <>
+    struct numeric_cast_traits
+        <
+            unsigned long
+          , unsigned int
+        >
+    {
+        typedef def_overflow_handler overflow_policy;
+        typedef UseInternalRangeChecker range_checking_policy;
+        typedef Trunc<unsigned int> rounding_policy;
+    }; 
+    
+    template <>
+    struct numeric_cast_traits
+        <
+            unsigned long
+          , long
+        >
+    {
+        typedef def_overflow_handler overflow_policy;
+        typedef UseInternalRangeChecker range_checking_policy;
+        typedef Trunc<long> rounding_policy;
+    }; 
+    
+    template <>
+    struct numeric_cast_traits
+        <
+            unsigned long
+          , unsigned long
+        >
+    {
+        typedef def_overflow_handler overflow_policy;
+        typedef UseInternalRangeChecker range_checking_policy;
+        typedef Trunc<unsigned long> rounding_policy;
+    }; 
+    
+    template <>
+    struct numeric_cast_traits
+        <
+            unsigned long
+          , float
+        >
+    {
+        typedef def_overflow_handler overflow_policy;
+        typedef UseInternalRangeChecker range_checking_policy;
+        typedef Trunc<float> rounding_policy;
+    }; 
+    
+    template <>
+    struct numeric_cast_traits
+        <
+            unsigned long
+          , double
+        >
+    {
+        typedef def_overflow_handler overflow_policy;
+        typedef UseInternalRangeChecker range_checking_policy;
+        typedef Trunc<double> rounding_policy;
+    }; 
+    
+    template <>
+    struct numeric_cast_traits
+        <
+            unsigned long
+          , long double
+        >
+    {
+        typedef def_overflow_handler overflow_policy;
+        typedef UseInternalRangeChecker range_checking_policy;
+        typedef Trunc<long double> rounding_policy;
+    }; 
+    
+    template <>
+    struct numeric_cast_traits
+        <
+            float
+          , char
+        >
+    {
+        typedef def_overflow_handler overflow_policy;
+        typedef UseInternalRangeChecker range_checking_policy;
+        typedef Trunc<char> rounding_policy;
+    }; 
+    
+    template <>
+    struct numeric_cast_traits
+        <
+            float
+          , signed char
+        >
+    {
+        typedef def_overflow_handler overflow_policy;
+        typedef UseInternalRangeChecker range_checking_policy;
+        typedef Trunc<signed char> rounding_policy;
+    }; 
+    
+    template <>
+    struct numeric_cast_traits
+        <
+            float
+          , unsigned char
+        >
+    {
+        typedef def_overflow_handler overflow_policy;
+        typedef UseInternalRangeChecker range_checking_policy;
+        typedef Trunc<unsigned char> rounding_policy;
+    }; 
+    
+    template <>
+    struct numeric_cast_traits
+        <
+            float
+          , short
+        >
+    {
+        typedef def_overflow_handler overflow_policy;
+        typedef UseInternalRangeChecker range_checking_policy;
+        typedef Trunc<short> rounding_policy;
+    }; 
+    
+    template <>
+    struct numeric_cast_traits
+        <
+            float
+          , unsigned short
+        >
+    {
+        typedef def_overflow_handler overflow_policy;
+        typedef UseInternalRangeChecker range_checking_policy;
+        typedef Trunc<unsigned short> rounding_policy;
+    }; 
+    
+    template <>
+    struct numeric_cast_traits
+        <
+            float
+          , int
+        >
+    {
+        typedef def_overflow_handler overflow_policy;
+        typedef UseInternalRangeChecker range_checking_policy;
+        typedef Trunc<int> rounding_policy;
+    }; 
+    
+    template <>
+    struct numeric_cast_traits
+        <
+            float
+          , unsigned int
+        >
+    {
+        typedef def_overflow_handler overflow_policy;
+        typedef UseInternalRangeChecker range_checking_policy;
+        typedef Trunc<unsigned int> rounding_policy;
+    }; 
+    
+    template <>
+    struct numeric_cast_traits
+        <
+            float
+          , long
+        >
+    {
+        typedef def_overflow_handler overflow_policy;
+        typedef UseInternalRangeChecker range_checking_policy;
+        typedef Trunc<long> rounding_policy;
+    }; 
+    
+    template <>
+    struct numeric_cast_traits
+        <
+            float
+          , unsigned long
+        >
+    {
+        typedef def_overflow_handler overflow_policy;
+        typedef UseInternalRangeChecker range_checking_policy;
+        typedef Trunc<unsigned long> rounding_policy;
+    }; 
+    
+    template <>
+    struct numeric_cast_traits
+        <
+            float
+          , float
+        >
+    {
+        typedef def_overflow_handler overflow_policy;
+        typedef UseInternalRangeChecker range_checking_policy;
+        typedef Trunc<float> rounding_policy;
+    }; 
+    
+    template <>
+    struct numeric_cast_traits
+        <
+            float
+          , double
+        >
+    {
+        typedef def_overflow_handler overflow_policy;
+        typedef UseInternalRangeChecker range_checking_policy;
+        typedef Trunc<double> rounding_policy;
+    }; 
+    
+    template <>
+    struct numeric_cast_traits
+        <
+            float
+          , long double
+        >
+    {
+        typedef def_overflow_handler overflow_policy;
+        typedef UseInternalRangeChecker range_checking_policy;
+        typedef Trunc<long double> rounding_policy;
+    }; 
+    
+    template <>
+    struct numeric_cast_traits
+        <
+            double
+          , char
+        >
+    {
+        typedef def_overflow_handler overflow_policy;
+        typedef UseInternalRangeChecker range_checking_policy;
+        typedef Trunc<char> rounding_policy;
+    }; 
+    
+    template <>
+    struct numeric_cast_traits
+        <
+            double
+          , signed char
+        >
+    {
+        typedef def_overflow_handler overflow_policy;
+        typedef UseInternalRangeChecker range_checking_policy;
+        typedef Trunc<signed char> rounding_policy;
+    }; 
+    
+    template <>
+    struct numeric_cast_traits
+        <
+            double
+          , unsigned char
+        >
+    {
+        typedef def_overflow_handler overflow_policy;
+        typedef UseInternalRangeChecker range_checking_policy;
+        typedef Trunc<unsigned char> rounding_policy;
+    }; 
+    
+    template <>
+    struct numeric_cast_traits
+        <
+            double
+          , short
+        >
+    {
+        typedef def_overflow_handler overflow_policy;
+        typedef UseInternalRangeChecker range_checking_policy;
+        typedef Trunc<short> rounding_policy;
+    }; 
+    
+    template <>
+    struct numeric_cast_traits
+        <
+            double
+          , unsigned short
+        >
+    {
+        typedef def_overflow_handler overflow_policy;
+        typedef UseInternalRangeChecker range_checking_policy;
+        typedef Trunc<unsigned short> rounding_policy;
+    }; 
+    
+    template <>
+    struct numeric_cast_traits
+        <
+            double
+          , int
+        >
+    {
+        typedef def_overflow_handler overflow_policy;
+        typedef UseInternalRangeChecker range_checking_policy;
+        typedef Trunc<int> rounding_policy;
+    }; 
+    
+    template <>
+    struct numeric_cast_traits
+        <
+            double
+          , unsigned int
+        >
+    {
+        typedef def_overflow_handler overflow_policy;
+        typedef UseInternalRangeChecker range_checking_policy;
+        typedef Trunc<unsigned int> rounding_policy;
+    }; 
+    
+    template <>
+    struct numeric_cast_traits
+        <
+            double
+          , long
+        >
+    {
+        typedef def_overflow_handler overflow_policy;
+        typedef UseInternalRangeChecker range_checking_policy;
+        typedef Trunc<long> rounding_policy;
+    }; 
+    
+    template <>
+    struct numeric_cast_traits
+        <
+            double
+          , unsigned long
+        >
+    {
+        typedef def_overflow_handler overflow_policy;
+        typedef UseInternalRangeChecker range_checking_policy;
+        typedef Trunc<unsigned long> rounding_policy;
+    }; 
+    
+    template <>
+    struct numeric_cast_traits
+        <
+            double
+          , float
+        >
+    {
+        typedef def_overflow_handler overflow_policy;
+        typedef UseInternalRangeChecker range_checking_policy;
+        typedef Trunc<float> rounding_policy;
+    }; 
+    
+    template <>
+    struct numeric_cast_traits
+        <
+            double
+          , double
+        >
+    {
+        typedef def_overflow_handler overflow_policy;
+        typedef UseInternalRangeChecker range_checking_policy;
+        typedef Trunc<double> rounding_policy;
+    }; 
+    
+    template <>
+    struct numeric_cast_traits
+        <
+            double
+          , long double
+        >
+    {
+        typedef def_overflow_handler overflow_policy;
+        typedef UseInternalRangeChecker range_checking_policy;
+        typedef Trunc<long double> rounding_policy;
+    }; 
+    
+    template <>
+    struct numeric_cast_traits
+        <
+            long double
+          , char
+        >
+    {
+        typedef def_overflow_handler overflow_policy;
+        typedef UseInternalRangeChecker range_checking_policy;
+        typedef Trunc<char> rounding_policy;
+    }; 
+    
+    template <>
+    struct numeric_cast_traits
+        <
+            long double
+          , signed char
+        >
+    {
+        typedef def_overflow_handler overflow_policy;
+        typedef UseInternalRangeChecker range_checking_policy;
+        typedef Trunc<signed char> rounding_policy;
+    }; 
+    
+    template <>
+    struct numeric_cast_traits
+        <
+            long double
+          , unsigned char
+        >
+    {
+        typedef def_overflow_handler overflow_policy;
+        typedef UseInternalRangeChecker range_checking_policy;
+        typedef Trunc<unsigned char> rounding_policy;
+    }; 
+    
+    template <>
+    struct numeric_cast_traits
+        <
+            long double
+          , short
+        >
+    {
+        typedef def_overflow_handler overflow_policy;
+        typedef UseInternalRangeChecker range_checking_policy;
+        typedef Trunc<short> rounding_policy;
+    }; 
+    
+    template <>
+    struct numeric_cast_traits
+        <
+            long double
+          , unsigned short
+        >
+    {
+        typedef def_overflow_handler overflow_policy;
+        typedef UseInternalRangeChecker range_checking_policy;
+        typedef Trunc<unsigned short> rounding_policy;
+    }; 
+    
+    template <>
+    struct numeric_cast_traits
+        <
+            long double
+          , int
+        >
+    {
+        typedef def_overflow_handler overflow_policy;
+        typedef UseInternalRangeChecker range_checking_policy;
+        typedef Trunc<int> rounding_policy;
+    }; 
+    
+    template <>
+    struct numeric_cast_traits
+        <
+            long double
+          , unsigned int
+        >
+    {
+        typedef def_overflow_handler overflow_policy;
+        typedef UseInternalRangeChecker range_checking_policy;
+        typedef Trunc<unsigned int> rounding_policy;
+    }; 
+    
+    template <>
+    struct numeric_cast_traits
+        <
+            long double
+          , long
+        >
+    {
+        typedef def_overflow_handler overflow_policy;
+        typedef UseInternalRangeChecker range_checking_policy;
+        typedef Trunc<long> rounding_policy;
+    }; 
+    
+    template <>
+    struct numeric_cast_traits
+        <
+            long double
+          , unsigned long
+        >
+    {
+        typedef def_overflow_handler overflow_policy;
+        typedef UseInternalRangeChecker range_checking_policy;
+        typedef Trunc<unsigned long> rounding_policy;
+    }; 
+    
+    template <>
+    struct numeric_cast_traits
+        <
+            long double
+          , float
+        >
+    {
+        typedef def_overflow_handler overflow_policy;
+        typedef UseInternalRangeChecker range_checking_policy;
+        typedef Trunc<float> rounding_policy;
+    }; 
+    
+    template <>
+    struct numeric_cast_traits
+        <
+            long double
+          , double
+        >
+    {
+        typedef def_overflow_handler overflow_policy;
+        typedef UseInternalRangeChecker range_checking_policy;
+        typedef Trunc<double> rounding_policy;
+    }; 
+    
+    template <>
+    struct numeric_cast_traits
+        <
+            long double
+          , long double
+        >
+    {
+        typedef def_overflow_handler overflow_policy;
+        typedef UseInternalRangeChecker range_checking_policy;
+        typedef Trunc<long double> rounding_policy;
+    }; 
+}}
diff --git a/ndnboost/numeric/conversion/detail/preprocessed/numeric_cast_traits_long_long.hpp b/ndnboost/numeric/conversion/detail/preprocessed/numeric_cast_traits_long_long.hpp
new file mode 100644
index 0000000..ef8d541
--- /dev/null
+++ b/ndnboost/numeric/conversion/detail/preprocessed/numeric_cast_traits_long_long.hpp
@@ -0,0 +1,347 @@
+//
+//! Copyright (c) 2011-2012
+//! Brandon Kohn
+//
+//  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)
+//
+namespace ndnboost { namespace numeric {
+    
+    
+    template <>
+    struct numeric_cast_traits
+        <
+            char
+          , ndnboost::long_long_type
+        >
+    {
+        typedef def_overflow_handler overflow_policy;
+        typedef UseInternalRangeChecker range_checking_policy;
+        typedef Trunc<ndnboost::long_long_type> rounding_policy;
+    }; 
+    
+    template <>
+    struct numeric_cast_traits
+        <
+            char
+          , ndnboost::ulong_long_type
+        >
+    {
+        typedef def_overflow_handler overflow_policy;
+        typedef UseInternalRangeChecker range_checking_policy;
+        typedef Trunc<ndnboost::ulong_long_type> rounding_policy;
+    }; 
+    
+    template <>
+    struct numeric_cast_traits
+        <
+            signed char
+          , ndnboost::long_long_type
+        >
+    {
+        typedef def_overflow_handler overflow_policy;
+        typedef UseInternalRangeChecker range_checking_policy;
+        typedef Trunc<ndnboost::long_long_type> rounding_policy;
+    }; 
+    
+    template <>
+    struct numeric_cast_traits
+        <
+            signed char
+          , ndnboost::ulong_long_type
+        >
+    {
+        typedef def_overflow_handler overflow_policy;
+        typedef UseInternalRangeChecker range_checking_policy;
+        typedef Trunc<ndnboost::ulong_long_type> rounding_policy;
+    }; 
+    
+    template <>
+    struct numeric_cast_traits
+        <
+            unsigned char
+          , ndnboost::long_long_type
+        >
+    {
+        typedef def_overflow_handler overflow_policy;
+        typedef UseInternalRangeChecker range_checking_policy;
+        typedef Trunc<ndnboost::long_long_type> rounding_policy;
+    }; 
+    
+    template <>
+    struct numeric_cast_traits
+        <
+            unsigned char
+          , ndnboost::ulong_long_type
+        >
+    {
+        typedef def_overflow_handler overflow_policy;
+        typedef UseInternalRangeChecker range_checking_policy;
+        typedef Trunc<ndnboost::ulong_long_type> rounding_policy;
+    }; 
+    
+    template <>
+    struct numeric_cast_traits
+        <
+            short
+          , ndnboost::long_long_type
+        >
+    {
+        typedef def_overflow_handler overflow_policy;
+        typedef UseInternalRangeChecker range_checking_policy;
+        typedef Trunc<ndnboost::long_long_type> rounding_policy;
+    }; 
+    
+    template <>
+    struct numeric_cast_traits
+        <
+            short
+          , ndnboost::ulong_long_type
+        >
+    {
+        typedef def_overflow_handler overflow_policy;
+        typedef UseInternalRangeChecker range_checking_policy;
+        typedef Trunc<ndnboost::ulong_long_type> rounding_policy;
+    }; 
+    
+    template <>
+    struct numeric_cast_traits
+        <
+            unsigned short
+          , ndnboost::long_long_type
+        >
+    {
+        typedef def_overflow_handler overflow_policy;
+        typedef UseInternalRangeChecker range_checking_policy;
+        typedef Trunc<ndnboost::long_long_type> rounding_policy;
+    }; 
+    
+    template <>
+    struct numeric_cast_traits
+        <
+            unsigned short
+          , ndnboost::ulong_long_type
+        >
+    {
+        typedef def_overflow_handler overflow_policy;
+        typedef UseInternalRangeChecker range_checking_policy;
+        typedef Trunc<ndnboost::ulong_long_type> rounding_policy;
+    }; 
+    
+    template <>
+    struct numeric_cast_traits
+        <
+            int
+          , ndnboost::long_long_type
+        >
+    {
+        typedef def_overflow_handler overflow_policy;
+        typedef UseInternalRangeChecker range_checking_policy;
+        typedef Trunc<ndnboost::long_long_type> rounding_policy;
+    }; 
+    
+    template <>
+    struct numeric_cast_traits
+        <
+            int
+          , ndnboost::ulong_long_type
+        >
+    {
+        typedef def_overflow_handler overflow_policy;
+        typedef UseInternalRangeChecker range_checking_policy;
+        typedef Trunc<ndnboost::ulong_long_type> rounding_policy;
+    }; 
+    
+    template <>
+    struct numeric_cast_traits
+        <
+            unsigned int
+          , ndnboost::long_long_type
+        >
+    {
+        typedef def_overflow_handler overflow_policy;
+        typedef UseInternalRangeChecker range_checking_policy;
+        typedef Trunc<ndnboost::long_long_type> rounding_policy;
+    }; 
+    
+    template <>
+    struct numeric_cast_traits
+        <
+            unsigned int
+          , ndnboost::ulong_long_type
+        >
+    {
+        typedef def_overflow_handler overflow_policy;
+        typedef UseInternalRangeChecker range_checking_policy;
+        typedef Trunc<ndnboost::ulong_long_type> rounding_policy;
+    }; 
+    
+    template <>
+    struct numeric_cast_traits
+        <
+            long
+          , ndnboost::long_long_type
+        >
+    {
+        typedef def_overflow_handler overflow_policy;
+        typedef UseInternalRangeChecker range_checking_policy;
+        typedef Trunc<ndnboost::long_long_type> rounding_policy;
+    }; 
+    
+    template <>
+    struct numeric_cast_traits
+        <
+            long
+          , ndnboost::ulong_long_type
+        >
+    {
+        typedef def_overflow_handler overflow_policy;
+        typedef UseInternalRangeChecker range_checking_policy;
+        typedef Trunc<ndnboost::ulong_long_type> rounding_policy;
+    }; 
+    
+    template <>
+    struct numeric_cast_traits
+        <
+            unsigned long
+          , ndnboost::long_long_type
+        >
+    {
+        typedef def_overflow_handler overflow_policy;
+        typedef UseInternalRangeChecker range_checking_policy;
+        typedef Trunc<ndnboost::long_long_type> rounding_policy;
+    }; 
+    
+    template <>
+    struct numeric_cast_traits
+        <
+            unsigned long
+          , ndnboost::ulong_long_type
+        >
+    {
+        typedef def_overflow_handler overflow_policy;
+        typedef UseInternalRangeChecker range_checking_policy;
+        typedef Trunc<ndnboost::ulong_long_type> rounding_policy;
+    }; 
+    
+    template <>
+    struct numeric_cast_traits
+        <
+            float
+          , ndnboost::long_long_type
+        >
+    {
+        typedef def_overflow_handler overflow_policy;
+        typedef UseInternalRangeChecker range_checking_policy;
+        typedef Trunc<ndnboost::long_long_type> rounding_policy;
+    }; 
+    
+    template <>
+    struct numeric_cast_traits
+        <
+            float
+          , ndnboost::ulong_long_type
+        >
+    {
+        typedef def_overflow_handler overflow_policy;
+        typedef UseInternalRangeChecker range_checking_policy;
+        typedef Trunc<ndnboost::ulong_long_type> rounding_policy;
+    }; 
+    
+    template <>
+    struct numeric_cast_traits
+        <
+            double
+          , ndnboost::long_long_type
+        >
+    {
+        typedef def_overflow_handler overflow_policy;
+        typedef UseInternalRangeChecker range_checking_policy;
+        typedef Trunc<ndnboost::long_long_type> rounding_policy;
+    }; 
+    
+    template <>
+    struct numeric_cast_traits
+        <
+            double
+          , ndnboost::ulong_long_type
+        >
+    {
+        typedef def_overflow_handler overflow_policy;
+        typedef UseInternalRangeChecker range_checking_policy;
+        typedef Trunc<ndnboost::ulong_long_type> rounding_policy;
+    }; 
+    
+    template <>
+    struct numeric_cast_traits
+        <
+            long double
+          , ndnboost::long_long_type
+        >
+    {
+        typedef def_overflow_handler overflow_policy;
+        typedef UseInternalRangeChecker range_checking_policy;
+        typedef Trunc<ndnboost::long_long_type> rounding_policy;
+    }; 
+    
+    template <>
+    struct numeric_cast_traits
+        <
+            long double
+          , ndnboost::ulong_long_type
+        >
+    {
+        typedef def_overflow_handler overflow_policy;
+        typedef UseInternalRangeChecker range_checking_policy;
+        typedef Trunc<ndnboost::ulong_long_type> rounding_policy;
+    }; 
+    
+    template <>
+    struct numeric_cast_traits
+        <
+            ndnboost::long_long_type
+          , ndnboost::long_long_type
+        >
+    {
+        typedef def_overflow_handler overflow_policy;
+        typedef UseInternalRangeChecker range_checking_policy;
+        typedef Trunc<ndnboost::long_long_type> rounding_policy;
+    }; 
+    
+    template <>
+    struct numeric_cast_traits
+        <
+            ndnboost::long_long_type
+          , ndnboost::ulong_long_type
+        >
+    {
+        typedef def_overflow_handler overflow_policy;
+        typedef UseInternalRangeChecker range_checking_policy;
+        typedef Trunc<ndnboost::ulong_long_type> rounding_policy;
+    }; 
+    
+    template <>
+    struct numeric_cast_traits
+        <
+            ndnboost::ulong_long_type
+          , ndnboost::long_long_type
+        >
+    {
+        typedef def_overflow_handler overflow_policy;
+        typedef UseInternalRangeChecker range_checking_policy;
+        typedef Trunc<ndnboost::long_long_type> rounding_policy;
+    }; 
+    
+    template <>
+    struct numeric_cast_traits
+        <
+            ndnboost::ulong_long_type
+          , ndnboost::ulong_long_type
+        >
+    {
+        typedef def_overflow_handler overflow_policy;
+        typedef UseInternalRangeChecker range_checking_policy;
+        typedef Trunc<ndnboost::ulong_long_type> rounding_policy;
+    }; 
+}}
diff --git a/ndnboost/numeric/conversion/detail/sign_mixture.hpp b/ndnboost/numeric/conversion/detail/sign_mixture.hpp
new file mode 100644
index 0000000..e49ad1d
--- /dev/null
+++ b/ndnboost/numeric/conversion/detail/sign_mixture.hpp
@@ -0,0 +1,72 @@
+//  (c) Copyright Fernando Luis Cacciola Carballal 2000-2004
+//  Use, modification, and distribution is 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 library home page at http://www.boost.org/libs/numeric/conversion
+//
+// Contact the author at: fernando_cacciola@hotmail.com
+// 
+#ifndef BOOST_NUMERIC_CONVERSION_DETAIL_SIGN_MIXTURE_FLC_12NOV2002_HPP
+#define BOOST_NUMERIC_CONVERSION_DETAIL_SIGN_MIXTURE_FLC_12NOV2002_HPP
+
+#include "ndnboost/config.hpp"
+#include "ndnboost/limits.hpp"
+
+#include "ndnboost/numeric/conversion/sign_mixture_enum.hpp"
+#include "ndnboost/numeric/conversion/detail/meta.hpp"
+
+#include "ndnboost/mpl/integral_c.hpp"
+
+namespace ndnboost { namespace numeric { namespace convdetail
+{
+  // Integral Constants for 'SignMixture'
+  typedef mpl::integral_c<sign_mixture_enum, unsigned_to_unsigned> unsig2unsig_c ;
+  typedef mpl::integral_c<sign_mixture_enum, signed_to_signed>     sig2sig_c ;
+  typedef mpl::integral_c<sign_mixture_enum, signed_to_unsigned>   sig2unsig_c ;
+  typedef mpl::integral_c<sign_mixture_enum, unsigned_to_signed>   unsig2sig_c ;
+
+  // Metafunction:
+  //
+  //   get_sign_mixture<T,S>::type
+  //
+  // Selects the appropriate SignMixture Integral Constant for the combination T,S.
+  //
+  template<class T,class S>
+  struct get_sign_mixture
+  {
+    typedef mpl::bool_< ::std::numeric_limits<S>::is_signed > S_signed ;
+    typedef mpl::bool_< ::std::numeric_limits<T>::is_signed > T_signed ;
+
+    typedef typename
+      for_both<S_signed, T_signed, sig2sig_c, sig2unsig_c, unsig2sig_c, unsig2unsig_c>::type
+        type ;
+  } ;
+
+  // Metafunction:
+  //
+  //   for_sign_mixture<SignMixture,Sig2Sig,Sig2Unsig,Unsig2Sig,Unsig2Unsig>::type
+  //
+  // {SignMixture} is one of the Integral Constants for SignMixture, declared above.
+  // {Sig2Sig,Sig2Unsig,Unsig2Sig,Unsig2Unsig} are aribtrary types. (not metafunctions)
+  //
+  // According to the value of 'SignMixture', selects the corresponding type.
+  //
+  template<class SignMixture, class Sig2Sig, class Sig2Unsig, class Unsig2Sig, class Unsig2Unsig>
+  struct for_sign_mixture
+  {
+    typedef typename
+      ct_switch4<SignMixture
+                 , sig2sig_c, sig2unsig_c, unsig2sig_c  // default
+                 , Sig2Sig  , Sig2Unsig  , Unsig2Sig  , Unsig2Unsig
+                >::type
+        type ;
+  } ;
+
+} } } // namespace ndnboost::numeric::convdetail
+
+#endif
+//
+///////////////////////////////////////////////////////////////////////////////////////////////
+
+
diff --git a/ndnboost/numeric/conversion/detail/udt_builtin_mixture.hpp b/ndnboost/numeric/conversion/detail/udt_builtin_mixture.hpp
new file mode 100644
index 0000000..6b1e282
--- /dev/null
+++ b/ndnboost/numeric/conversion/detail/udt_builtin_mixture.hpp
@@ -0,0 +1,69 @@
+//  (c) Copyright Fernando Luis Cacciola Carballal 2000-2004
+//  Use, modification, and distribution is 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 library home page at http://www.boost.org/libs/numeric/conversion
+//
+// Contact the author at: fernando_cacciola@hotmail.com
+// 
+#ifndef BOOST_NUMERIC_CONVERSION_DETAIL_UDT_BUILTIN_MIXTURE_FLC_12NOV2002_HPP
+#define BOOST_NUMERIC_CONVERSION_DETAIL_UDT_BUILTIN_MIXTURE_FLC_12NOV2002_HPP
+
+#include "ndnboost/type_traits/is_arithmetic.hpp"
+
+#include "ndnboost/numeric/conversion/udt_builtin_mixture_enum.hpp"
+#include "ndnboost/numeric/conversion/detail/meta.hpp"
+
+#include "ndnboost/mpl/integral_c.hpp"
+
+namespace ndnboost { namespace numeric { namespace convdetail
+{
+  // Integral Constants for 'UdtMixture'
+  typedef mpl::integral_c<udt_builtin_mixture_enum, builtin_to_builtin> builtin2builtin_c ;
+  typedef mpl::integral_c<udt_builtin_mixture_enum, builtin_to_udt>     builtin2udt_c ;
+  typedef mpl::integral_c<udt_builtin_mixture_enum, udt_to_builtin>     udt2builtin_c ;
+  typedef mpl::integral_c<udt_builtin_mixture_enum, udt_to_udt>         udt2udt_c ;
+
+  // Metafunction:
+  //
+  //   for_udt_mixture<UdtMixture,BuiltIn2BuiltIn,BuiltIn2Udt,Udt2BuiltIn,Udt2Udt>::type
+  //
+  // {UdtMixture} is one of the Integral Constants for UdMixture, declared above.
+  // {BuiltIn2BuiltIn,BuiltIn2Udt,Udt2BuiltIn,Udt2Udt} are aribtrary types. (not metafunctions)
+  //
+  // According to the value of 'UdtMixture', selects the corresponding type.
+  //
+  template<class UdtMixture, class BuiltIn2BuiltIn, class BuiltIn2Udt, class Udt2BuiltIn, class Udt2Udt>
+  struct for_udt_builtin_mixture
+  {
+    typedef typename
+      ct_switch4<UdtMixture
+                 , builtin2builtin_c, builtin2udt_c, udt2builtin_c // default
+                 , BuiltIn2BuiltIn  , BuiltIn2Udt  , Udt2BuiltIn  , Udt2Udt
+                >::type
+        type ;
+  } ;
+
+  // Metafunction:
+  //
+  //   get_udt_mixture<T,S>::type
+  //
+  // Selects the appropriate UdtMixture Integral Constant for the combination T,S.
+  //
+  template<class T,class S>
+  struct get_udt_builtin_mixture
+  {
+    typedef is_arithmetic<S> S_builtin ;
+    typedef is_arithmetic<T> T_builtin ;
+
+    typedef typename
+      for_both<S_builtin, T_builtin, builtin2builtin_c, builtin2udt_c, udt2builtin_c, udt2udt_c>::type
+        type ;
+  } ;
+
+} } } // namespace ndnboost::numeric::convdetail
+
+#endif
+
+