diff --git a/include/ndnboost/functional/hash/detail/float_functions.hpp b/include/ndnboost/functional/hash/detail/float_functions.hpp
new file mode 100644
index 0000000..131ab62
--- /dev/null
+++ b/include/ndnboost/functional/hash/detail/float_functions.hpp
@@ -0,0 +1,336 @@
+
+// Copyright 2005-2009 Daniel James.
+// 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(NDNBOOST_FUNCTIONAL_HASH_DETAIL_FLOAT_FUNCTIONS_HPP)
+#define NDNBOOST_FUNCTIONAL_HASH_DETAIL_FLOAT_FUNCTIONS_HPP
+
+#include <ndnboost/config.hpp>
+#include <ndnboost/config/no_tr1/cmath.hpp>
+
+#if defined(_MSC_VER) && (_MSC_VER >= 1020)
+# pragma once
+#endif
+
+// Set NDNBOOST_HASH_CONFORMANT_FLOATS to 1 for libraries known to have
+// sufficiently good floating point support to not require any
+// workarounds.
+//
+// When set to 0, the library tries to automatically
+// use the best available implementation. This normally works well, but
+// breaks when ambiguities are created by odd namespacing of the functions.
+//
+// Note that if this is set to 0, the library should still take full
+// advantage of the platform's floating point support.
+
+#if defined(__SGI_STL_PORT) || defined(_STLPORT_VERSION)
+#   define NDNBOOST_HASH_CONFORMANT_FLOATS 0
+#elif defined(__LIBCOMO__)
+#   define NDNBOOST_HASH_CONFORMANT_FLOATS 0
+#elif defined(__STD_RWCOMPILER_H__) || defined(_RWSTD_VER)
+// Rogue Wave library:
+#   define NDNBOOST_HASH_CONFORMANT_FLOATS 0
+#elif defined(_LIBCPP_VERSION)
+// libc++
+#   define NDNBOOST_HASH_CONFORMANT_FLOATS 1
+#elif defined(__GLIBCPP__) || defined(__GLIBCXX__)
+// GNU libstdc++ 3
+#   if defined(__GNUC__) && __GNUC__ >= 4
+#       define NDNBOOST_HASH_CONFORMANT_FLOATS 1
+#   else
+#       define NDNBOOST_HASH_CONFORMANT_FLOATS 0
+#   endif
+#elif defined(__STL_CONFIG_H)
+// generic SGI STL
+#   define NDNBOOST_HASH_CONFORMANT_FLOATS 0
+#elif defined(__MSL_CPP__)
+// MSL standard lib:
+#   define NDNBOOST_HASH_CONFORMANT_FLOATS 0
+#elif defined(__IBMCPP__)
+// VACPP std lib (probably conformant for much earlier version).
+#   if __IBMCPP__ >= 1210
+#       define NDNBOOST_HASH_CONFORMANT_FLOATS 1
+#   else
+#       define NDNBOOST_HASH_CONFORMANT_FLOATS 0
+#   endif
+#elif defined(MSIPL_COMPILE_H)
+// Modena C++ standard library
+#   define NDNBOOST_HASH_CONFORMANT_FLOATS 0
+#elif (defined(_YVALS) && !defined(__IBMCPP__)) || defined(_CPPLIB_VER)
+// Dinkumware Library (this has to appear after any possible replacement libraries):
+#   if _CPPLIB_VER >= 405
+#       define NDNBOOST_HASH_CONFORMANT_FLOATS 1
+#   else
+#       define NDNBOOST_HASH_CONFORMANT_FLOATS 0
+#   endif
+#else
+#   define NDNBOOST_HASH_CONFORMANT_FLOATS 0
+#endif
+
+#if NDNBOOST_HASH_CONFORMANT_FLOATS
+
+// The standard library is known to be compliant, so don't use the
+// configuration mechanism.
+
+namespace ndnboost {
+    namespace hash_detail {
+        template <typename Float>
+        struct call_ldexp {
+            typedef Float float_type;
+            inline Float operator()(Float x, int y) const {
+                return std::ldexp(x, y);
+            }
+        };
+
+        template <typename Float>
+        struct call_frexp {
+            typedef Float float_type;
+            inline Float operator()(Float x, int* y) const {
+                return std::frexp(x, y);
+            }
+        };
+
+        template <typename Float>
+        struct select_hash_type
+        {
+            typedef Float type;
+        };
+    }
+}
+
+#else // NDNBOOST_HASH_CONFORMANT_FLOATS == 0
+
+// The C++ standard requires that the C float functions are overloarded
+// for float, double and long double in the std namespace, but some of the older
+// library implementations don't support this. On some that don't, the C99
+// float functions (frexpf, frexpl, etc.) are available.
+//
+// The following tries to automatically detect which are available.
+
+namespace ndnboost {
+    namespace hash_detail {
+
+        // Returned by dummy versions of the float functions.
+    
+        struct not_found {
+            // Implicitly convertible to float and long double in order to avoid
+            // a compile error when the dummy float functions are used.
+
+            inline operator float() const { return 0; }
+            inline operator long double() const { return 0; }
+        };
+          
+        // A type for detecting the return type of functions.
+
+        template <typename T> struct is;
+        template <> struct is<float> { char x[10]; };
+        template <> struct is<double> { char x[20]; };
+        template <> struct is<long double> { char x[30]; };
+        template <> struct is<ndnboost::hash_detail::not_found> { char x[40]; };
+            
+        // Used to convert the return type of a function to a type for sizeof.
+
+        template <typename T> is<T> float_type(T);
+
+        // call_ldexp
+        //
+        // This will get specialized for float and long double
+        
+        template <typename Float> struct call_ldexp
+        {
+            typedef double float_type;
+            
+            inline double operator()(double a, int b) const
+            {
+                using namespace std;
+                return ldexp(a, b);
+            }
+        };
+
+        // call_frexp
+        //
+        // This will get specialized for float and long double
+
+        template <typename Float> struct call_frexp
+        {
+            typedef double float_type;
+            
+            inline double operator()(double a, int* b) const
+            {
+                using namespace std;
+                return frexp(a, b);
+            }
+        };
+    }
+}
+            
+// A namespace for dummy functions to detect when the actual function we want
+// isn't available. ldexpl, ldexpf etc. might be added tby the macros below.
+//
+// AFAICT these have to be outside of the boost namespace, as if they're in
+// the boost namespace they'll always be preferable to any other function
+// (since the arguments are built in types, ADL can't be used).
+
+namespace ndnboost_hash_detect_float_functions {
+    template <class Float> ndnboost::hash_detail::not_found ldexp(Float, int);
+    template <class Float> ndnboost::hash_detail::not_found frexp(Float, int*);    
+}
+
+// Macros for generating specializations of call_ldexp and call_frexp.
+//
+// check_cpp and check_c99 check if the C++ or C99 functions are available.
+//
+// Then the call_* functions select an appropriate implementation.
+//
+// I used c99_func in a few places just to get a unique name.
+//
+// Important: when using 'using namespace' at namespace level, include as
+// little as possible in that namespace, as Visual C++ has an odd bug which
+// can cause the namespace to be imported at the global level. This seems to
+// happen mainly when there's a template in the same namesapce.
+
+#define NDNBOOST_HASH_CALL_FLOAT_FUNC(cpp_func, c99_func, type1, type2)    \
+namespace ndnboost_hash_detect_float_functions {                           \
+    template <class Float>                                              \
+    ndnboost::hash_detail::not_found c99_func(Float, type2);               \
+}                                                                       \
+                                                                        \
+namespace ndnboost {                                                       \
+    namespace hash_detail {                                             \
+        namespace c99_func##_detect {                                   \
+            using namespace std;                                        \
+            using namespace ndnboost_hash_detect_float_functions;          \
+                                                                        \
+            struct check {                                              \
+                static type1 x;                                         \
+                static type2 y;                                         \
+                NDNBOOST_STATIC_CONSTANT(bool, cpp =                       \
+                    sizeof(float_type(cpp_func(x,y)))                   \
+                        == sizeof(is<type1>));                          \
+                NDNBOOST_STATIC_CONSTANT(bool, c99 =                       \
+                    sizeof(float_type(c99_func(x,y)))                   \
+                        == sizeof(is<type1>));                          \
+            };                                                          \
+        }                                                               \
+                                                                        \
+        template <bool x>                                               \
+        struct call_c99_##c99_func :                                    \
+            ndnboost::hash_detail::call_##cpp_func<double> {};             \
+                                                                        \
+        template <>                                                     \
+        struct call_c99_##c99_func<true> {                              \
+            typedef type1 float_type;                                   \
+                                                                        \
+            template <typename T>                                       \
+            inline type1 operator()(type1 a, T b)  const                \
+            {                                                           \
+                using namespace std;                                    \
+                return c99_func(a, b);                                  \
+            }                                                           \
+        };                                                              \
+                                                                        \
+        template <bool x>                                               \
+        struct call_cpp_##c99_func :                                    \
+            call_c99_##c99_func<                                        \
+                ::ndnboost::hash_detail::c99_func##_detect::check::c99     \
+            > {};                                                       \
+                                                                        \
+        template <>                                                     \
+        struct call_cpp_##c99_func<true> {                              \
+            typedef type1 float_type;                                   \
+                                                                        \
+            template <typename T>                                       \
+            inline type1 operator()(type1 a, T b)  const                \
+            {                                                           \
+                using namespace std;                                    \
+                return cpp_func(a, b);                                  \
+            }                                                           \
+        };                                                              \
+                                                                        \
+        template <>                                                     \
+        struct call_##cpp_func<type1> :                                 \
+            call_cpp_##c99_func<                                        \
+                ::ndnboost::hash_detail::c99_func##_detect::check::cpp     \
+            > {};                                                       \
+    }                                                                   \
+}
+
+#define NDNBOOST_HASH_CALL_FLOAT_MACRO(cpp_func, c99_func, type1, type2)   \
+namespace ndnboost {                                                       \
+    namespace hash_detail {                                             \
+                                                                        \
+        template <>                                                     \
+        struct call_##cpp_func<type1> {                                 \
+            typedef type1 float_type;                                   \
+            inline type1 operator()(type1 x, type2 y) const {           \
+                return c99_func(x, y);                                  \
+            }                                                           \
+        };                                                              \
+    }                                                                   \
+}
+
+#if defined(ldexpf)
+NDNBOOST_HASH_CALL_FLOAT_MACRO(ldexp, ldexpf, float, int)
+#else
+NDNBOOST_HASH_CALL_FLOAT_FUNC(ldexp, ldexpf, float, int)
+#endif
+
+#if defined(ldexpl)
+NDNBOOST_HASH_CALL_FLOAT_MACRO(ldexp, ldexpl, long double, int)
+#else
+NDNBOOST_HASH_CALL_FLOAT_FUNC(ldexp, ldexpl, long double, int)
+#endif
+
+#if defined(frexpf)
+NDNBOOST_HASH_CALL_FLOAT_MACRO(frexp, frexpf, float, int*)
+#else
+NDNBOOST_HASH_CALL_FLOAT_FUNC(frexp, frexpf, float, int*)
+#endif
+
+#if defined(frexpl)
+NDNBOOST_HASH_CALL_FLOAT_MACRO(frexp, frexpl, long double, int*)
+#else
+NDNBOOST_HASH_CALL_FLOAT_FUNC(frexp, frexpl, long double, int*)
+#endif
+
+#undef NDNBOOST_HASH_CALL_FLOAT_MACRO
+#undef NDNBOOST_HASH_CALL_FLOAT_FUNC
+
+
+namespace ndnboost
+{
+    namespace hash_detail
+    {
+        template <typename Float1, typename Float2>
+        struct select_hash_type_impl {
+            typedef double type;
+        };
+
+        template <>
+        struct select_hash_type_impl<float, float> {
+            typedef float type;
+        };
+
+        template <>
+        struct select_hash_type_impl<long double, long double> {
+            typedef long double type;
+        };
+
+
+        // select_hash_type
+        //
+        // If there is support for a particular floating point type, use that
+        // otherwise use double (there's always support for double).
+             
+        template <typename Float>
+        struct select_hash_type : select_hash_type_impl<
+                NDNBOOST_DEDUCED_TYPENAME call_ldexp<Float>::float_type,
+                NDNBOOST_DEDUCED_TYPENAME call_frexp<Float>::float_type
+            > {};            
+    }
+}
+
+#endif // NDNBOOST_HASH_CONFORMANT_FLOATS
+
+#endif
diff --git a/include/ndnboost/functional/hash/detail/hash_float.hpp b/include/ndnboost/functional/hash/detail/hash_float.hpp
new file mode 100644
index 0000000..76873ae
--- /dev/null
+++ b/include/ndnboost/functional/hash/detail/hash_float.hpp
@@ -0,0 +1,277 @@
+
+// Copyright 2005-2012 Daniel James.
+// 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(NDNBOOST_FUNCTIONAL_HASH_DETAIL_HASH_FLOAT_HEADER)
+#define NDNBOOST_FUNCTIONAL_HASH_DETAIL_HASH_FLOAT_HEADER
+
+#if defined(_MSC_VER) && (_MSC_VER >= 1020)
+# pragma once
+#endif
+
+#include <ndnboost/config.hpp>
+#include <ndnboost/functional/hash/detail/float_functions.hpp>
+#include <ndnboost/functional/hash/detail/limits.hpp>
+#include <ndnboost/utility/enable_if.hpp>
+#include <ndnboost/integer/static_log2.hpp>
+#include <ndnboost/cstdint.hpp>
+#include <ndnboost/assert.hpp>
+#include <ndnboost/limits.hpp>
+#include <cstring>
+
+#if defined(NDNBOOST_MSVC)
+#pragma warning(push)
+#if NDNBOOST_MSVC >= 1400
+#pragma warning(disable:6294) // Ill-defined for-loop: initial condition does
+                              // not satisfy test. Loop body not executed
+#endif
+#endif
+
+// Can we use fpclassify?
+
+// STLport
+#if defined(__SGI_STL_PORT) || defined(_STLPORT_VERSION)
+#define NDNBOOST_HASH_USE_FPCLASSIFY 0
+
+// GNU libstdc++ 3
+#elif defined(__GLIBCPP__) || defined(__GLIBCXX__)
+#  if (defined(__USE_ISOC99) || defined(_GLIBCXX_USE_C99_MATH)) && \
+      !(defined(macintosh) || defined(__APPLE__) || defined(__APPLE_CC__))
+#    define NDNBOOST_HASH_USE_FPCLASSIFY 1
+#  else
+#    define NDNBOOST_HASH_USE_FPCLASSIFY 0
+#  endif
+
+// Everything else
+#else
+#  define NDNBOOST_HASH_USE_FPCLASSIFY 0
+#endif
+
+namespace ndnboost
+{
+    namespace hash_detail
+    {
+        inline void hash_float_combine(std::size_t& seed, std::size_t value)
+        {
+            seed ^= value + (seed<<6) + (seed>>2);
+        }
+
+        ////////////////////////////////////////////////////////////////////////
+        // Binary hash function
+        //
+        // Only used for floats with known iec559 floats, and certain values in
+        // numeric_limits
+
+        inline std::size_t hash_binary(char* ptr, std::size_t length)
+        {
+            std::size_t seed = 0;
+
+            if (length >= sizeof(std::size_t)) {
+                seed = *(std::size_t*) ptr;
+                length -= sizeof(std::size_t);
+                ptr += sizeof(std::size_t);
+
+                while(length >= sizeof(std::size_t)) {
+                    std::size_t buffer = 0;
+                    std::memcpy(&buffer, ptr, sizeof(std::size_t));
+                    hash_float_combine(seed, buffer);
+                    length -= sizeof(std::size_t);
+                    ptr += sizeof(std::size_t);
+                }
+            }
+
+            if (length > 0) {
+                std::size_t buffer = 0;
+                std::memcpy(&buffer, ptr, length);
+                hash_float_combine(seed, buffer);
+            }
+
+            return seed;
+        }
+
+        template <typename Float>
+        inline std::size_t float_hash_impl(Float v,
+            NDNBOOST_DEDUCED_TYPENAME ndnboost::enable_if_c<
+                std::numeric_limits<Float>::is_iec559 &&
+                std::numeric_limits<Float>::digits == 24 &&
+                std::numeric_limits<Float>::radix == 2 &&
+                std::numeric_limits<Float>::max_exponent == 128,
+                int>::type
+            )
+        {
+            return hash_binary((char*) &v, 4);
+        }
+
+
+        template <typename Float>
+        inline std::size_t float_hash_impl(Float v,
+            NDNBOOST_DEDUCED_TYPENAME ndnboost::enable_if_c<
+                std::numeric_limits<Float>::is_iec559 &&
+                std::numeric_limits<Float>::digits == 53 &&
+                std::numeric_limits<Float>::radix == 2 &&
+                std::numeric_limits<Float>::max_exponent == 1024,
+                int>::type
+            )
+        {
+            return hash_binary((char*) &v, 8);
+        }
+
+        template <typename Float>
+        inline std::size_t float_hash_impl(Float v,
+            NDNBOOST_DEDUCED_TYPENAME ndnboost::enable_if_c<
+                std::numeric_limits<Float>::is_iec559 &&
+                std::numeric_limits<Float>::digits == 64 &&
+                std::numeric_limits<Float>::radix == 2 &&
+                std::numeric_limits<Float>::max_exponent == 16384,
+                int>::type
+            )
+        {
+            return hash_binary((char*) &v, 10);
+        }
+
+        template <typename Float>
+        inline std::size_t float_hash_impl(Float v,
+            NDNBOOST_DEDUCED_TYPENAME ndnboost::enable_if_c<
+                std::numeric_limits<Float>::is_iec559 &&
+                std::numeric_limits<Float>::digits == 113 &&
+                std::numeric_limits<Float>::radix == 2 &&
+                std::numeric_limits<Float>::max_exponent == 16384,
+                int>::type
+            )
+        {
+            return hash_binary((char*) &v, 16);
+        }
+
+        ////////////////////////////////////////////////////////////////////////
+        // Portable hash function
+        //
+        // Used as a fallback when the binary hash function isn't supported.
+
+        template <class T>
+        inline std::size_t float_hash_impl2(T v)
+        {
+            ndnboost::hash_detail::call_frexp<T> frexp;
+            ndnboost::hash_detail::call_ldexp<T> ldexp;
+
+            int exp = 0;
+
+            v = frexp(v, &exp);
+
+            // A postive value is easier to hash, so combine the
+            // sign with the exponent and use the absolute value.
+            if(v < 0) {
+                v = -v;
+                exp += limits<T>::max_exponent -
+                    limits<T>::min_exponent;
+            }
+
+            v = ldexp(v, limits<std::size_t>::digits);
+            std::size_t seed = static_cast<std::size_t>(v);
+            v -= static_cast<T>(seed);
+
+            // ceiling(digits(T) * log2(radix(T))/ digits(size_t)) - 1;
+            std::size_t const length
+                = (limits<T>::digits *
+                        ndnboost::static_log2<limits<T>::radix>::value
+                        + limits<std::size_t>::digits - 1)
+                / limits<std::size_t>::digits;
+
+            for(std::size_t i = 0; i != length; ++i)
+            {
+                v = ldexp(v, limits<std::size_t>::digits);
+                std::size_t part = static_cast<std::size_t>(v);
+                v -= static_cast<T>(part);
+                hash_float_combine(seed, part);
+            }
+
+            hash_float_combine(seed, exp);
+
+            return seed;
+        }
+
+#if !defined(NDNBOOST_HASH_DETAIL_TEST_WITHOUT_GENERIC)
+        template <class T>
+        inline std::size_t float_hash_impl(T v, ...)
+        {
+            typedef NDNBOOST_DEDUCED_TYPENAME select_hash_type<T>::type type;
+            return float_hash_impl2(static_cast<type>(v));
+        }
+#endif
+    }
+}
+
+#if NDNBOOST_HASH_USE_FPCLASSIFY
+
+#include <ndnboost/config/no_tr1/cmath.hpp>
+
+namespace ndnboost
+{
+    namespace hash_detail
+    {
+        template <class T>
+        inline std::size_t float_hash_value(T v)
+        {
+#if defined(fpclassify)
+            switch (fpclassify(v))
+#elif NDNBOOST_HASH_CONFORMANT_FLOATS
+            switch (std::fpclassify(v))
+#else
+            using namespace std;
+            switch (fpclassify(v))
+#endif
+            {
+            case FP_ZERO:
+                return 0;
+            case FP_INFINITE:
+                return (std::size_t)(v > 0 ? -1 : -2);
+            case FP_NAN:
+                return (std::size_t)(-3);
+            case FP_NORMAL:
+            case FP_SUBNORMAL:
+                return float_hash_impl(v, 0);
+            default:
+                NDNBOOST_ASSERT(0);
+                return 0;
+            }
+        }
+    }
+}
+
+#else // !NDNBOOST_HASH_USE_FPCLASSIFY
+
+namespace ndnboost
+{
+    namespace hash_detail
+    {
+        template <class T>
+        inline bool is_zero(T v)
+        {
+#if !defined(__GNUC__)
+            return v == 0;
+#else
+            // GCC's '-Wfloat-equal' will complain about comparing
+            // v to 0, but because it disables warnings for system
+            // headers it won't complain if you use std::equal_to to
+            // compare with 0. Resulting in this silliness:
+            return std::equal_to<T>()(v, 0);
+#endif
+        }
+
+        template <class T>
+        inline std::size_t float_hash_value(T v)
+        {
+            return ndnboost::hash_detail::is_zero(v) ? 0 : float_hash_impl(v, 0);
+        }
+    }
+}
+
+#endif // NDNBOOST_HASH_USE_FPCLASSIFY
+
+#undef NDNBOOST_HASH_USE_FPCLASSIFY
+
+#if defined(NDNBOOST_MSVC)
+#pragma warning(pop)
+#endif
+
+#endif
diff --git a/include/ndnboost/functional/hash/detail/limits.hpp b/include/ndnboost/functional/hash/detail/limits.hpp
new file mode 100644
index 0000000..f25b3be
--- /dev/null
+++ b/include/ndnboost/functional/hash/detail/limits.hpp
@@ -0,0 +1,61 @@
+
+// Copyright 2005-2009 Daniel James.
+// 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)
+//
+// On some platforms std::limits gives incorrect values for long double.
+// This tries to work around them.
+
+#if !defined(NDNBOOST_FUNCTIONAL_HASH_DETAIL_LIMITS_HEADER)
+#define NDNBOOST_FUNCTIONAL_HASH_DETAIL_LIMITS_HEADER
+
+#if defined(_MSC_VER) && (_MSC_VER >= 1020)
+# pragma once
+#endif
+
+#include <ndnboost/limits.hpp>
+
+// On OpenBSD, numeric_limits is not reliable for long doubles, but
+// the macros defined in <float.h> are and support long double when STLport
+// doesn't.
+
+#if defined(__OpenBSD__) || defined(_STLP_NO_LONG_DOUBLE)
+#include <float.h>
+#endif
+
+namespace ndnboost
+{
+    namespace hash_detail
+    {
+        template <class T>
+        struct limits : std::numeric_limits<T> {};
+
+#if defined(__OpenBSD__) || defined(_STLP_NO_LONG_DOUBLE)
+        template <>
+        struct limits<long double>
+             : std::numeric_limits<long double>
+        {
+            static long double epsilon() {
+                return LDBL_EPSILON;
+            }
+
+            static long double (max)() {
+                return LDBL_MAX;
+            }
+
+            static long double (min)() {
+                return LDBL_MIN;
+            }
+
+            NDNBOOST_STATIC_CONSTANT(int, digits = LDBL_MANT_DIG);
+            NDNBOOST_STATIC_CONSTANT(int, max_exponent = LDBL_MAX_EXP);
+            NDNBOOST_STATIC_CONSTANT(int, min_exponent = LDBL_MIN_EXP);
+#if defined(_STLP_NO_LONG_DOUBLE)
+            NDNBOOST_STATIC_CONSTANT(int, radix = FLT_RADIX);
+#endif
+        };
+#endif // __OpenBSD__
+    }
+}
+
+#endif