Add boost subset as an implementation detail

9 files changed, 1424 insertions, 0 deletions

diff --git a/cutl/details/boost/functional/hash.hpp b/cutl/details/boost/functional/hash.hpp
new file mode 100644
index 0000000..2a265ef
--- /dev/null
+++ b/cutl/details/boost/functional/hash.hpp
@@ -0,0 +1,7 @@
+
+// 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)
+
+#include <cutl/details/boost/functional/hash/hash.hpp>
+
diff --git a/cutl/details/boost/functional/hash/detail/float_functions.hpp b/cutl/details/boost/functional/hash/detail/float_functions.hpp
new file mode 100644
index 0000000..0686928
--- /dev/null
+++ b/cutl/details/boost/functional/hash/detail/float_functions.hpp
@@ -0,0 +1,246 @@
+
+// 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(BOOST_FUNCTIONAL_HASH_DETAIL_FLOAT_FUNCTIONS_HPP)
+#define BOOST_FUNCTIONAL_HASH_DETAIL_FLOAT_FUNCTIONS_HPP
+
+#include <cutl/details/boost/config.hpp>
+#include <cutl/details/boost/config/no_tr1/cmath.hpp>
+
+#if defined(_MSC_VER) && (_MSC_VER >= 1020)
+# pragma once
+#endif
+
+// 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 cutl_details_boost {
+    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<cutl_details_boost::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 cutl_details_boost_hash_detect_float_functions {
+    template <class Float> cutl_details_boost::hash_detail::not_found ldexp(Float, int);
+    template <class Float> cutl_details_boost::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 BOOST_HASH_CALL_FLOAT_FUNC(cpp_func, c99_func, type1, type2)    \
+namespace cutl_details_boost_hash_detect_float_functions {                           \
+    template <class Float>                                              \
+    cutl_details_boost::hash_detail::not_found c99_func(Float, type2);               \
+}                                                                       \
+                                                                        \
+namespace cutl_details_boost {                                                       \
+    namespace hash_detail {                                             \
+        namespace c99_func##_detect {                                   \
+            using namespace std;                                        \
+            using namespace cutl_details_boost_hash_detect_float_functions;          \
+                                                                        \
+            struct check {                                              \
+                static type1 x;                                         \
+                static type2 y;                                         \
+                BOOST_STATIC_CONSTANT(bool, cpp =                       \
+                    sizeof(float_type(cpp_func(x,y)))                   \
+                        == sizeof(is<type1>));                          \
+                BOOST_STATIC_CONSTANT(bool, c99 =                       \
+                    sizeof(float_type(c99_func(x,y)))                   \
+                        == sizeof(is<type1>));                          \
+            };                                                          \
+        }                                                               \
+                                                                        \
+        template <bool x>                                               \
+        struct call_c99_##c99_func :                                    \
+            cutl_details_boost::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<                                        \
+                ::cutl_details_boost::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<                                        \
+                ::cutl_details_boost::hash_detail::c99_func##_detect::check::cpp     \
+            > {};                                                       \
+    }                                                                   \
+}
+
+#define BOOST_HASH_CALL_FLOAT_MACRO(cpp_func, c99_func, type1, type2)   \
+namespace cutl_details_boost {                                                       \
+    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)
+BOOST_HASH_CALL_FLOAT_MACRO(ldexp, ldexpf, float, int)
+#else
+BOOST_HASH_CALL_FLOAT_FUNC(ldexp, ldexpf, float, int)
+#endif
+
+#if defined(ldexpl)
+BOOST_HASH_CALL_FLOAT_MACRO(ldexp, ldexpl, long double, int)
+#else
+BOOST_HASH_CALL_FLOAT_FUNC(ldexp, ldexpl, long double, int)
+#endif
+
+#if defined(frexpf)
+BOOST_HASH_CALL_FLOAT_MACRO(frexp, frexpf, float, int*)
+#else
+BOOST_HASH_CALL_FLOAT_FUNC(frexp, frexpf, float, int*)
+#endif
+
+#if defined(frexpl)
+BOOST_HASH_CALL_FLOAT_MACRO(frexp, frexpl, long double, int*)
+#else
+BOOST_HASH_CALL_FLOAT_FUNC(frexp, frexpl, long double, int*)
+#endif
+
+#undef BOOST_HASH_CALL_FLOAT_MACRO
+#undef BOOST_HASH_CALL_FLOAT_FUNC
+
+
+namespace cutl_details_boost
+{
+    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<
+                BOOST_DEDUCED_TYPENAME call_ldexp<Float>::float_type,
+                BOOST_DEDUCED_TYPENAME call_frexp<Float>::float_type
+            > {};            
+    }
+}
+
+#endif
diff --git a/cutl/details/boost/functional/hash/detail/hash_float.hpp b/cutl/details/boost/functional/hash/detail/hash_float.hpp
new file mode 100644
index 0000000..dafec9a
--- /dev/null
+++ b/cutl/details/boost/functional/hash/detail/hash_float.hpp
@@ -0,0 +1,101 @@
+
+// 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(BOOST_FUNCTIONAL_HASH_DETAIL_HASH_FLOAT_HEADER)
+#define BOOST_FUNCTIONAL_HASH_DETAIL_HASH_FLOAT_HEADER
+
+#if defined(_MSC_VER) && (_MSC_VER >= 1020)
+# pragma once
+#endif
+
+#include <cutl/details/boost/config.hpp>
+#include <cutl/details/boost/functional/hash/detail/float_functions.hpp>
+#include <cutl/details/boost/functional/hash/detail/limits.hpp>
+#include <cutl/details/boost/integer/static_log2.hpp>
+#include <cutl/details/boost/cstdint.hpp>
+#include <cutl/details/boost/assert.hpp>
+
+// Include hash implementation for the current platform.
+
+// Cygwn
+#if defined(__CYGWIN__)
+#  if defined(__i386__) || defined(_M_IX86)
+#    include <cutl/details/boost/functional/hash/detail/hash_float_x86.hpp>
+#  else
+#    include <cutl/details/boost/functional/hash/detail/hash_float_generic.hpp>
+#  endif
+#else
+#  include <cutl/details/boost/functional/hash/detail/hash_float_generic.hpp>
+#endif
+
+// Can we use fpclassify?
+
+// STLport
+#if defined(__SGI_STL_PORT) || defined(_STLPORT_VERSION)
+#define BOOST_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 BOOST_HASH_USE_FPCLASSIFY 1
+#  else
+#    define BOOST_HASH_USE_FPCLASSIFY 0
+#  endif
+
+// Everything else
+#else
+#  define BOOST_HASH_USE_FPCLASSIFY 0
+#endif
+
+#if BOOST_HASH_USE_FPCLASSIFY
+
+#include <cutl/details/boost/config/no_tr1/cmath.hpp>
+
+namespace cutl_details_boost
+{
+    namespace hash_detail
+    {
+        template <class T>
+        inline std::size_t float_hash_value(T v)
+        {
+            using namespace std;
+            switch (fpclassify(v)) {
+            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);
+            default:
+                BOOST_ASSERT(0);
+                return 0;
+            }
+        }
+    }
+}
+
+#else // !BOOST_HASH_USE_FPCLASSIFY
+
+namespace cutl_details_boost
+{
+    namespace hash_detail
+    {
+        template <class T>
+        inline std::size_t float_hash_value(T v)
+        {
+            return v == 0 ? 0 : float_hash_impl(v);
+        }
+    }
+}
+
+#endif // BOOST_HASH_USE_FPCLASSIFY
+
+#undef BOOST_HASH_USE_FPCLASSIFY
+
+#endif
diff --git a/cutl/details/boost/functional/hash/detail/hash_float_generic.hpp b/cutl/details/boost/functional/hash/detail/hash_float_generic.hpp
new file mode 100644
index 0000000..295b620
--- /dev/null
+++ b/cutl/details/boost/functional/hash/detail/hash_float_generic.hpp
@@ -0,0 +1,91 @@
+
+// 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)
+
+// A general purpose hash function for non-zero floating point values.
+
+#if !defined(BOOST_FUNCTIONAL_HASH_DETAIL_HASH_FLOAT_GENERIC_HEADER)
+#define BOOST_FUNCTIONAL_HASH_DETAIL_HASH_FLOAT_GENERIC_HEADER
+
+#include <cutl/details/boost/functional/hash/detail/float_functions.hpp>
+#include <cutl/details/boost/integer/static_log2.hpp>
+#include <cutl/details/boost/functional/hash/detail/limits.hpp>
+
+#if defined(_MSC_VER) && (_MSC_VER >= 1020)
+# pragma once
+#endif
+
+#if defined(BOOST_MSVC)
+#pragma warning(push)
+#if BOOST_MSVC >= 1400
+#pragma warning(disable:6294) // Ill-defined for-loop: initial condition does
+                              // not satisfy test. Loop body not executed 
+#endif
+#endif
+
+namespace cutl_details_boost
+{
+    namespace hash_detail
+    {
+        inline void hash_float_combine(std::size_t& seed, std::size_t value)
+        {
+            seed ^= value + (seed<<6) + (seed>>2);
+        }
+
+        template <class T>
+        inline std::size_t float_hash_impl2(T v)
+        {
+            cutl_details_boost::hash_detail::call_frexp<T> frexp;
+            cutl_details_boost::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 *
+                        cutl_details_boost::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;
+        }
+
+        template <class T>
+        inline std::size_t float_hash_impl(T v)
+        {
+            typedef BOOST_DEDUCED_TYPENAME select_hash_type<T>::type type;
+            return float_hash_impl2(static_cast<type>(v));
+        }
+    }
+}
+
+#if defined(BOOST_MSVC)
+#pragma warning(pop)
+#endif
+
+#endif
diff --git a/cutl/details/boost/functional/hash/detail/hash_float_x86.hpp b/cutl/details/boost/functional/hash/detail/hash_float_x86.hpp
new file mode 100644
index 0000000..6a70556
--- /dev/null
+++ b/cutl/details/boost/functional/hash/detail/hash_float_x86.hpp
@@ -0,0 +1,56 @@
+
+// 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)
+
+// A non-portable hash function form non-zero floats on x86.
+//
+// Even if you're on an x86 platform, this might not work if their floating
+// point isn't set up as this expects. So this should only be used if it's
+// absolutely certain that it will work.
+
+#if !defined(BOOST_FUNCTIONAL_HASH_DETAIL_HASH_FLOAT_X86_HEADER)
+#define BOOST_FUNCTIONAL_HASH_DETAIL_HASH_FLOAT_X86_HEADER
+
+#include <cutl/details/boost/cstdint.hpp>
+
+#if defined(_MSC_VER) && (_MSC_VER >= 1020)
+# pragma once
+#endif
+
+namespace cutl_details_boost
+{
+    namespace hash_detail
+    {
+        inline void hash_float_combine(std::size_t& seed, std::size_t value)
+        {
+            seed ^= value + (seed<<6) + (seed>>2);
+        }
+
+        inline std::size_t float_hash_impl(float v)
+        {
+            cutl_details_boost::uint32_t* ptr = (cutl_details_boost::uint32_t*)&v;
+            std::size_t seed = *ptr;
+            return seed;
+        }
+
+        inline std::size_t float_hash_impl(double v)
+        {
+            cutl_details_boost::uint32_t* ptr = (cutl_details_boost::uint32_t*)&v;
+            std::size_t seed = *ptr++;
+            hash_float_combine(seed, *ptr);
+            return seed;
+        }
+
+        inline std::size_t float_hash_impl(long double v)
+        {
+            cutl_details_boost::uint32_t* ptr = (cutl_details_boost::uint32_t*)&v;
+            std::size_t seed = *ptr++;
+            hash_float_combine(seed, *ptr++);
+            hash_float_combine(seed, *(cutl_details_boost::uint16_t*)ptr);
+            return seed;
+        }
+    }
+}
+
+#endif
diff --git a/cutl/details/boost/functional/hash/detail/limits.hpp b/cutl/details/boost/functional/hash/detail/limits.hpp
new file mode 100644
index 0000000..de9abbe
--- /dev/null
+++ b/cutl/details/boost/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(BOOST_FUNCTIONAL_HASH_DETAIL_LIMITS_HEADER)
+#define BOOST_FUNCTIONAL_HASH_DETAIL_LIMITS_HEADER
+
+#if defined(_MSC_VER) && (_MSC_VER >= 1020)
+# pragma once
+#endif
+
+#include <cutl/details/boost/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 cutl_details_boost
+{
+    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;
+            }
+
+            BOOST_STATIC_CONSTANT(int, digits = LDBL_MANT_DIG);
+            BOOST_STATIC_CONSTANT(int, max_exponent = LDBL_MAX_EXP);
+            BOOST_STATIC_CONSTANT(int, min_exponent = LDBL_MIN_EXP);
+#if defined(_STLP_NO_LONG_DOUBLE)
+            BOOST_STATIC_CONSTANT(int, radix = FLT_RADIX);
+#endif
+        };
+#endif // __OpenBSD__
+    }
+}
+
+#endif
diff --git a/cutl/details/boost/functional/hash/extensions.hpp b/cutl/details/boost/functional/hash/extensions.hpp
new file mode 100644
index 0000000..2a3ae39
--- /dev/null
+++ b/cutl/details/boost/functional/hash/extensions.hpp
@@ -0,0 +1,286 @@
+
+// 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)
+
+//  Based on Peter Dimov's proposal
+//  http://www.open-std.org/JTC1/SC22/WG21/docs/papers/2005/n1756.pdf
+//  issue 6.18. 
+
+// This implements the extensions to the standard.
+// It's undocumented, so you shouldn't use it....
+
+#if !defined(BOOST_FUNCTIONAL_HASH_EXTENSIONS_HPP)
+#define BOOST_FUNCTIONAL_HASH_EXTENSIONS_HPP
+
+#include <cutl/details/boost/functional/hash/hash.hpp>
+#include <cutl/details/boost/detail/container_fwd.hpp>
+
+#if defined(_MSC_VER) && (_MSC_VER >= 1020)
+# pragma once
+#endif
+
+#if defined(BOOST_NO_FUNCTION_TEMPLATE_ORDERING)
+#include <cutl/details/boost/type_traits/is_array.hpp>
+#endif
+
+#if BOOST_WORKAROUND(BOOST_MSVC, < 1300)
+#include <cutl/details/boost/type_traits/is_const.hpp>
+#endif
+
+namespace cutl_details_boost
+{
+    template <class A, class B>
+    std::size_t hash_value(std::pair<A, B> const&);
+    template <class T, class A>
+    std::size_t hash_value(std::vector<T, A> const&);
+    template <class T, class A>
+    std::size_t hash_value(std::list<T, A> const& v);
+    template <class T, class A>
+    std::size_t hash_value(std::deque<T, A> const& v);
+    template <class K, class C, class A>
+    std::size_t hash_value(std::set<K, C, A> const& v);
+    template <class K, class C, class A>
+    std::size_t hash_value(std::multiset<K, C, A> const& v);
+    template <class K, class T, class C, class A>
+    std::size_t hash_value(std::map<K, T, C, A> const& v);
+    template <class K, class T, class C, class A>
+    std::size_t hash_value(std::multimap<K, T, C, A> const& v);
+
+    template <class T>
+    std::size_t hash_value(std::complex<T> const&);
+
+    template <class A, class B>
+    std::size_t hash_value(std::pair<A, B> const& v)
+    {
+        std::size_t seed = 0;
+        hash_combine(seed, v.first);
+        hash_combine(seed, v.second);
+        return seed;
+    }
+
+    template <class T, class A>
+    std::size_t hash_value(std::vector<T, A> const& v)
+    {
+        return hash_range(v.begin(), v.end());
+    }
+
+    template <class T, class A>
+    std::size_t hash_value(std::list<T, A> const& v)
+    {
+        return hash_range(v.begin(), v.end());
+    }
+
+    template <class T, class A>
+    std::size_t hash_value(std::deque<T, A> const& v)
+    {
+        return hash_range(v.begin(), v.end());
+    }
+
+    template <class K, class C, class A>
+    std::size_t hash_value(std::set<K, C, A> const& v)
+    {
+        return hash_range(v.begin(), v.end());
+    }
+
+    template <class K, class C, class A>
+    std::size_t hash_value(std::multiset<K, C, A> const& v)
+    {
+        return hash_range(v.begin(), v.end());
+    }
+
+    template <class K, class T, class C, class A>
+    std::size_t hash_value(std::map<K, T, C, A> const& v)
+    {
+        return hash_range(v.begin(), v.end());
+    }
+
+    template <class K, class T, class C, class A>
+    std::size_t hash_value(std::multimap<K, T, C, A> const& v)
+    {
+        return hash_range(v.begin(), v.end());
+    }
+
+    template <class T>
+    std::size_t hash_value(std::complex<T> const& v)
+    {
+        cutl_details_boost::hash<T> hasher;
+        std::size_t seed = hasher(v.imag());
+        seed ^= hasher(v.real()) + (seed<<6) + (seed>>2);
+        return seed;
+    }
+
+    //
+    // call_hash_impl
+    //
+
+    // On compilers without function template ordering, this deals with arrays.
+
+#if defined(BOOST_NO_FUNCTION_TEMPLATE_ORDERING)
+    namespace hash_detail
+    {
+        template <bool IsArray>
+        struct call_hash_impl
+        {
+            template <class T>
+            struct inner
+            {
+                static std::size_t call(T const& v)
+                {
+                    using namespace cutl_details_boost;
+                    return hash_value(v);
+                }
+            };
+        };
+
+        template <>
+        struct call_hash_impl<true>
+        {
+            template <class Array>
+            struct inner
+            {
+#if !BOOST_WORKAROUND(BOOST_MSVC, < 1300)
+                static std::size_t call(Array const& v)
+#else
+                static std::size_t call(Array& v)
+#endif
+                {
+                    const int size = sizeof(v) / sizeof(*v);
+                    return cutl_details_boost::hash_range(v, v + size);
+                }
+            };
+        };
+
+        template <class T>
+        struct call_hash
+            : public call_hash_impl<cutl_details_boost::is_array<T>::value>
+                ::BOOST_NESTED_TEMPLATE inner<T>
+        {
+        };
+    }
+#endif // BOOST_NO_FUNCTION_TEMPLATE_ORDERING
+
+    //
+    // cutl_details_boost::hash
+    //
+
+
+#if !defined(BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION)
+
+    template <class T> struct hash
+        : std::unary_function<T, std::size_t>
+    {
+#if !defined(BOOST_NO_FUNCTION_TEMPLATE_ORDERING)
+        std::size_t operator()(T const& val) const
+        {
+            return hash_value(val);
+        }
+#else
+        std::size_t operator()(T const& val) const
+        {
+            return hash_detail::call_hash<T>::call(val);
+        }
+#endif
+    };
+
+#if BOOST_WORKAROUND(__DMC__, <= 0x848)
+    template <class T, unsigned int n> struct hash<T[n]>
+        : std::unary_function<T[n], std::size_t>
+    {
+        std::size_t operator()(const T* val) const
+        {
+            return cutl_details_boost::hash_range(val, val+n);
+        }
+    };
+#endif
+
+#else // BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION
+
+    // On compilers without partial specialization, cutl_details_boost::hash<T>
+    // has already been declared to deal with pointers, so just
+    // need to supply the non-pointer version of hash_impl.
+
+    namespace hash_detail
+    {
+        template <bool IsPointer>
+        struct hash_impl;
+
+#if !BOOST_WORKAROUND(BOOST_MSVC, < 1300)
+
+        template <>
+        struct hash_impl<false>
+        {
+            template <class T>
+            struct inner
+                : std::unary_function<T, std::size_t>
+            {
+#if !defined(BOOST_NO_FUNCTION_TEMPLATE_ORDERING)
+                std::size_t operator()(T const& val) const
+                {
+                    return hash_value(val);
+                }
+#else
+                std::size_t operator()(T const& val) const
+                {
+                    return hash_detail::call_hash<T>::call(val);
+                }
+#endif
+            };
+        };
+
+#else // Visual C++ 6.5
+
+        // Visual C++ 6.5 has problems with nested member functions and
+        // applying const to const types in templates. So we get this:
+
+        template <bool IsConst>
+        struct hash_impl_msvc
+        {
+            template <class T>
+            struct inner
+                : public std::unary_function<T, std::size_t>
+            {
+                std::size_t operator()(T const& val) const
+                {
+                    return hash_detail::call_hash<T const>::call(val);
+                }
+
+                std::size_t operator()(T& val) const
+                {
+                    return hash_detail::call_hash<T>::call(val);
+                }
+            };
+        };
+
+        template <>
+        struct hash_impl_msvc<true>
+        {
+            template <class T>
+            struct inner
+                : public std::unary_function<T, std::size_t>
+            {
+                std::size_t operator()(T& val) const
+                {
+                    return hash_detail::call_hash<T>::call(val);
+                }
+            };
+        };
+        
+        template <class T>
+        struct hash_impl_msvc2
+            : public hash_impl_msvc<cutl_details_boost::is_const<T>::value>
+                    ::BOOST_NESTED_TEMPLATE inner<T> {};
+        
+        template <>
+        struct hash_impl<false>
+        {
+            template <class T>
+            struct inner : public hash_impl_msvc2<T> {};
+        };
+
+#endif // Visual C++ 6.5
+    }
+#endif  // BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION
+}
+
+#endif
diff --git a/cutl/details/boost/functional/hash/hash.hpp b/cutl/details/boost/functional/hash/hash.hpp
new file mode 100644
index 0000000..3ea7bb5
--- /dev/null
+++ b/cutl/details/boost/functional/hash/hash.hpp
@@ -0,0 +1,536 @@
+
+// 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)
+
+//  Based on Peter Dimov's proposal
+//  http://www.open-std.org/JTC1/SC22/WG21/docs/papers/2005/n1756.pdf
+//  issue 6.18. 
+
+#if !defined(BOOST_FUNCTIONAL_HASH_HASH_HPP)
+#define BOOST_FUNCTIONAL_HASH_HASH_HPP
+
+#include <cutl/details/boost/functional/hash/hash_fwd.hpp>
+#include <functional>
+#include <cutl/details/boost/functional/hash/detail/hash_float.hpp>
+#include <string>
+#include <cutl/details/boost/limits.hpp>
+
+#if defined(BOOST_HASH_NO_IMPLICIT_CASTS)
+#include <cutl/details/boost/static_assert.hpp>
+#endif
+
+#if defined(BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION)
+#include <cutl/details/boost/type_traits/is_pointer.hpp>
+#endif
+
+#if !defined(BOOST_NO_0X_HDR_TYPEINDEX)
+#include <typeindex>
+#endif
+
+#if BOOST_WORKAROUND(__GNUC__, < 3) \
+    && !defined(__SGI_STL_PORT) && !defined(_STLPORT_VERSION)
+#define BOOST_HASH_CHAR_TRAITS string_char_traits
+#else
+#define BOOST_HASH_CHAR_TRAITS char_traits
+#endif
+
+namespace cutl_details_boost
+{
+#if defined(BOOST_HASH_NO_IMPLICIT_CASTS)
+
+    // If you get a static assertion here, it's because hash_value
+    // isn't declared for your type.
+    template <typename T>
+    std::size_t hash_value(T const&) {
+        BOOST_STATIC_ASSERT((T*) 0 && false);
+        return 0;
+    }
+
+#endif
+
+    std::size_t hash_value(bool);
+    std::size_t hash_value(char);
+    std::size_t hash_value(unsigned char);
+    std::size_t hash_value(signed char);
+    std::size_t hash_value(short);
+    std::size_t hash_value(unsigned short);
+    std::size_t hash_value(int);
+    std::size_t hash_value(unsigned int);
+    std::size_t hash_value(long);
+    std::size_t hash_value(unsigned long);
+
+#if !defined(BOOST_NO_INTRINSIC_WCHAR_T)
+    std::size_t hash_value(wchar_t);
+#endif
+    
+#if !defined(BOOST_NO_LONG_LONG)
+    std::size_t hash_value(cutl_details_boost::long_long_type);
+    std::size_t hash_value(cutl_details_boost::ulong_long_type);
+#endif
+
+#if !BOOST_WORKAROUND(__DMC__, <= 0x848)
+    template <class T> std::size_t hash_value(T* const&);
+#else
+    template <class T> std::size_t hash_value(T*);
+#endif
+
+#if !defined(BOOST_NO_FUNCTION_TEMPLATE_ORDERING)
+    template< class T, unsigned N >
+    std::size_t hash_value(const T (&x)[N]);
+
+    template< class T, unsigned N >
+    std::size_t hash_value(T (&x)[N]);
+#endif
+
+    std::size_t hash_value(float v);
+    std::size_t hash_value(double v);
+    std::size_t hash_value(long double v);
+
+    template <class Ch, class A>
+    std::size_t hash_value(
+        std::basic_string<Ch, std::BOOST_HASH_CHAR_TRAITS<Ch>, A> const&);
+
+#if !defined(BOOST_NO_0X_HDR_TYPEINDEX)
+    std::size_t hash_value(std::type_index);
+#endif
+
+    // Implementation
+
+    namespace hash_detail
+    {
+        template <class T>
+        inline std::size_t hash_value_signed(T val)
+        {
+             const int size_t_bits = std::numeric_limits<std::size_t>::digits;
+             // ceiling(std::numeric_limits<T>::digits / size_t_bits) - 1
+             const int length = (std::numeric_limits<T>::digits - 1)
+                 / size_t_bits;
+
+             std::size_t seed = 0;
+             T positive = val < 0 ? -1 - val : val;
+
+             // Hopefully, this loop can be unrolled.
+             for(unsigned int i = length * size_t_bits; i > 0; i -= size_t_bits)
+             {
+                 seed ^= (std::size_t) (positive >> i) + (seed<<6) + (seed>>2);
+             }
+             seed ^= (std::size_t) val + (seed<<6) + (seed>>2);
+
+             return seed;
+        }
+
+        template <class T>
+        inline std::size_t hash_value_unsigned(T val)
+        {
+             const int size_t_bits = std::numeric_limits<std::size_t>::digits;
+             // ceiling(std::numeric_limits<T>::digits / size_t_bits) - 1
+             const int length = (std::numeric_limits<T>::digits - 1)
+                 / size_t_bits;
+
+             std::size_t seed = 0;
+
+             // Hopefully, this loop can be unrolled.
+             for(unsigned int i = length * size_t_bits; i > 0; i -= size_t_bits)
+             {
+                 seed ^= (std::size_t) (val >> i) + (seed<<6) + (seed>>2);
+             }
+             seed ^= (std::size_t) val + (seed<<6) + (seed>>2);
+
+             return seed;
+        }
+    }
+
+    inline std::size_t hash_value(bool v)
+    {
+        return static_cast<std::size_t>(v);
+    }
+
+    inline std::size_t hash_value(char v)
+    {
+        return static_cast<std::size_t>(v);
+    }
+
+    inline std::size_t hash_value(unsigned char v)
+    {
+        return static_cast<std::size_t>(v);
+    }
+
+    inline std::size_t hash_value(signed char v)
+    {
+        return static_cast<std::size_t>(v);
+    }
+
+    inline std::size_t hash_value(short v)
+    {
+        return static_cast<std::size_t>(v);
+    }
+
+    inline std::size_t hash_value(unsigned short v)
+    {
+        return static_cast<std::size_t>(v);
+    }
+
+    inline std::size_t hash_value(int v)
+    {
+        return static_cast<std::size_t>(v);
+    }
+
+    inline std::size_t hash_value(unsigned int v)
+    {
+        return static_cast<std::size_t>(v);
+    }
+
+    inline std::size_t hash_value(long v)
+    {
+        return static_cast<std::size_t>(v);
+    }
+
+    inline std::size_t hash_value(unsigned long v)
+    {
+        return static_cast<std::size_t>(v);
+    }
+
+#if !defined(BOOST_NO_INTRINSIC_WCHAR_T)
+    inline std::size_t hash_value(wchar_t v)
+    {
+        return static_cast<std::size_t>(v);
+    }
+#endif
+
+#if !defined(BOOST_NO_LONG_LONG)
+    inline std::size_t hash_value(cutl_details_boost::long_long_type v)
+    {
+        return hash_detail::hash_value_signed(v);
+    }
+
+    inline std::size_t hash_value(cutl_details_boost::ulong_long_type v)
+    {
+        return hash_detail::hash_value_unsigned(v);
+    }
+#endif
+
+    // Implementation by Alberto Barbati and Dave Harris.
+#if !BOOST_WORKAROUND(__DMC__, <= 0x848)
+    template <class T> std::size_t hash_value(T* const& v)
+#else
+    template <class T> std::size_t hash_value(T* v)
+#endif
+    {
+#if defined(__VMS) && __INITIAL_POINTER_SIZE == 64
+    // for some reason ptrdiff_t on OpenVMS compiler with
+    // 64 bit is not 64 bit !!!
+        std::size_t x = static_cast<std::size_t>(
+           reinterpret_cast<long long int>(v));
+#else
+        std::size_t x = static_cast<std::size_t>(
+           reinterpret_cast<std::ptrdiff_t>(v));
+#endif
+        return x + (x >> 3);
+    }
+
+#if defined(BOOST_MSVC)
+#pragma warning(push)
+#if BOOST_MSVC <= 1400
+#pragma warning(disable:4267) // 'argument' : conversion from 'size_t' to
+                              // 'unsigned int', possible loss of data
+                              // A misguided attempt to detect 64-bit
+                              // incompatability.
+#endif
+#endif
+
+#if BOOST_WORKAROUND(BOOST_MSVC, < 1300)
+    template <class T>
+    inline void hash_combine(std::size_t& seed, T& v)
+#else
+    template <class T>
+    inline void hash_combine(std::size_t& seed, T const& v)
+#endif
+    {
+        cutl_details_boost::hash<T> hasher;
+        seed ^= hasher(v) + 0x9e3779b9 + (seed<<6) + (seed>>2);
+    }
+
+#if defined(BOOST_MSVC)
+#pragma warning(pop)
+#endif
+
+    template <class It>
+    inline std::size_t hash_range(It first, It last)
+    {
+        std::size_t seed = 0;
+
+        for(; first != last; ++first)
+        {
+            hash_combine(seed, *first);
+        }
+
+        return seed;
+    }
+
+    template <class It>
+    inline void hash_range(std::size_t& seed, It first, It last)
+    {
+        for(; first != last; ++first)
+        {
+            hash_combine(seed, *first);
+        }
+    }
+
+#if BOOST_WORKAROUND(__BORLANDC__, BOOST_TESTED_AT(0x551))
+    template <class T>
+    inline std::size_t hash_range(T* first, T* last)
+    {
+        std::size_t seed = 0;
+
+        for(; first != last; ++first)
+        {
+            cutl_details_boost::hash<T> hasher;
+            seed ^= hasher(*first) + 0x9e3779b9 + (seed<<6) + (seed>>2);
+        }
+
+        return seed;
+    }
+
+    template <class T>
+    inline void hash_range(std::size_t& seed, T* first, T* last)
+    {
+        for(; first != last; ++first)
+        {
+            cutl_details_boost::hash<T> hasher;
+            seed ^= hasher(*first) + 0x9e3779b9 + (seed<<6) + (seed>>2);
+        }
+    }
+#endif
+
+#if !defined(BOOST_NO_FUNCTION_TEMPLATE_ORDERING)
+    template< class T, unsigned N >
+    inline std::size_t hash_value(const T (&x)[N])
+    {
+        return hash_range(x, x + N);
+    }
+
+    template< class T, unsigned N >
+    inline std::size_t hash_value(T (&x)[N])
+    {
+        return hash_range(x, x + N);
+    }
+#endif
+
+    template <class Ch, class A>
+    inline std::size_t hash_value(
+        std::basic_string<Ch, std::BOOST_HASH_CHAR_TRAITS<Ch>, A> const& v)
+    {
+        return hash_range(v.begin(), v.end());
+    }
+
+    inline std::size_t hash_value(float v)
+    {
+        return cutl_details_boost::hash_detail::float_hash_value(v);
+    }
+
+    inline std::size_t hash_value(double v)
+    {
+        return cutl_details_boost::hash_detail::float_hash_value(v);
+    }
+
+    inline std::size_t hash_value(long double v)
+    {
+        return cutl_details_boost::hash_detail::float_hash_value(v);
+    }
+
+#if !defined(BOOST_NO_0X_HDR_TYPEINDEX)
+    inline std::size_t hash_value(std::type_index v)
+    {
+        return v.hash_code();
+    }
+#endif
+
+    //
+    // cutl_details_boost::hash
+    //
+    
+    // Define the specializations required by the standard. The general purpose
+    // cutl_details_boost::hash is defined later in extensions.hpp if
+    // BOOST_HASH_NO_EXTENSIONS is not defined.
+    
+    // BOOST_HASH_SPECIALIZE - define a specialization for a type which is
+    // passed by copy.
+    //
+    // BOOST_HASH_SPECIALIZE_REF - define a specialization for a type which is
+    // passed by copy.
+    //
+    // These are undefined later.
+
+#if !BOOST_WORKAROUND(BOOST_MSVC, < 1300)
+#define BOOST_HASH_SPECIALIZE(type) \
+    template <> struct hash<type> \
+         : public std::unary_function<type, std::size_t> \
+    { \
+        std::size_t operator()(type v) const \
+        { \
+            return cutl_details_boost::hash_value(v); \
+        } \
+    };
+
+#define BOOST_HASH_SPECIALIZE_REF(type) \
+    template <> struct hash<type> \
+         : public std::unary_function<type, std::size_t> \
+    { \
+        std::size_t operator()(type const& v) const \
+        { \
+            return cutl_details_boost::hash_value(v); \
+        } \
+    };
+#else
+#define BOOST_HASH_SPECIALIZE(type) \
+    template <> struct hash<type> \
+         : public std::unary_function<type, std::size_t> \
+    { \
+        std::size_t operator()(type v) const \
+        { \
+            return cutl_details_boost::hash_value(v); \
+        } \
+    }; \
+    \
+    template <> struct hash<const type> \
+         : public std::unary_function<const type, std::size_t> \
+    { \
+        std::size_t operator()(const type v) const \
+        { \
+            return cutl_details_boost::hash_value(v); \
+        } \
+    };
+
+#define BOOST_HASH_SPECIALIZE_REF(type) \
+    template <> struct hash<type> \
+         : public std::unary_function<type, std::size_t> \
+    { \
+        std::size_t operator()(type const& v) const \
+        { \
+            return cutl_details_boost::hash_value(v); \
+        } \
+    }; \
+    \
+    template <> struct hash<const type> \
+         : public std::unary_function<const type, std::size_t> \
+    { \
+        std::size_t operator()(type const& v) const \
+        { \
+            return cutl_details_boost::hash_value(v); \
+        } \
+    };
+#endif
+
+    BOOST_HASH_SPECIALIZE(bool)
+    BOOST_HASH_SPECIALIZE(char)
+    BOOST_HASH_SPECIALIZE(signed char)
+    BOOST_HASH_SPECIALIZE(unsigned char)
+#if !defined(BOOST_NO_INTRINSIC_WCHAR_T)
+    BOOST_HASH_SPECIALIZE(wchar_t)
+#endif
+    BOOST_HASH_SPECIALIZE(short)
+    BOOST_HASH_SPECIALIZE(unsigned short)
+    BOOST_HASH_SPECIALIZE(int)
+    BOOST_HASH_SPECIALIZE(unsigned int)
+    BOOST_HASH_SPECIALIZE(long)
+    BOOST_HASH_SPECIALIZE(unsigned long)
+
+    BOOST_HASH_SPECIALIZE(float)
+    BOOST_HASH_SPECIALIZE(double)
+    BOOST_HASH_SPECIALIZE(long double)
+
+    BOOST_HASH_SPECIALIZE_REF(std::string)
+#if !defined(BOOST_NO_STD_WSTRING)
+    BOOST_HASH_SPECIALIZE_REF(std::wstring)
+#endif
+
+#if !defined(BOOST_NO_LONG_LONG)
+    BOOST_HASH_SPECIALIZE(cutl_details_boost::long_long_type)
+    BOOST_HASH_SPECIALIZE(cutl_details_boost::ulong_long_type)
+#endif
+
+#if !defined(BOOST_NO_0X_HDR_TYPEINDEX)
+    BOOST_HASH_SPECIALIZE(std::type_index)
+#endif
+
+#undef BOOST_HASH_SPECIALIZE
+#undef BOOST_HASH_SPECIALIZE_REF
+
+// Specializing cutl_details_boost::hash for pointers.
+
+#if !defined(BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION)
+
+    template <class T>
+    struct hash<T*>
+        : public std::unary_function<T*, std::size_t>
+    {
+        std::size_t operator()(T* v) const
+        {
+#if !BOOST_WORKAROUND(__SUNPRO_CC, <= 0x590)
+            return cutl_details_boost::hash_value(v);
+#else
+            std::size_t x = static_cast<std::size_t>(
+                reinterpret_cast<std::ptrdiff_t>(v));
+
+            return x + (x >> 3);
+#endif
+        }
+    };
+
+#else
+
+    // For compilers without partial specialization, we define a
+    // cutl_details_boost::hash for all remaining types. But hash_impl is only defined
+    // for pointers in 'extensions.hpp' - so when BOOST_HASH_NO_EXTENSIONS
+    // is defined there will still be a compile error for types not supported
+    // in the standard.
+
+    namespace hash_detail
+    {
+        template <bool IsPointer>
+        struct hash_impl;
+
+        template <>
+        struct hash_impl<true>
+        {
+            template <class T>
+            struct inner
+                : public std::unary_function<T, std::size_t>
+            {
+                std::size_t operator()(T val) const
+                {
+#if !BOOST_WORKAROUND(__SUNPRO_CC, <= 590)
+                    return cutl_details_boost::hash_value(val);
+#else
+                    std::size_t x = static_cast<std::size_t>(
+                        reinterpret_cast<std::ptrdiff_t>(val));
+
+                    return x + (x >> 3);
+#endif
+                }
+            };
+        };
+    }
+
+    template <class T> struct hash
+        : public cutl_details_boost::hash_detail::hash_impl<cutl_details_boost::is_pointer<T>::value>
+            ::BOOST_NESTED_TEMPLATE inner<T>
+    {
+    };
+
+#endif
+}
+
+#undef BOOST_HASH_CHAR_TRAITS
+
+#endif // BOOST_FUNCTIONAL_HASH_HASH_HPP
+
+// Include this outside of the include guards in case the file is included
+// twice - once with BOOST_HASH_NO_EXTENSIONS defined, and then with it
+// undefined.
+
+#if !defined(BOOST_HASH_NO_EXTENSIONS) \
+    && !defined(BOOST_FUNCTIONAL_HASH_EXTENSIONS_HPP)
+#include <cutl/details/boost/functional/hash/extensions.hpp>
+#endif
diff --git a/cutl/details/boost/functional/hash/hash_fwd.hpp b/cutl/details/boost/functional/hash/hash_fwd.hpp
new file mode 100644
index 0000000..b56a4f9
--- /dev/null
+++ b/cutl/details/boost/functional/hash/hash_fwd.hpp
@@ -0,0 +1,40 @@
+
+// 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)
+
+//  Based on Peter Dimov's proposal
+//  http://www.open-std.org/JTC1/SC22/WG21/docs/papers/2005/n1756.pdf
+//  issue 6.18. 
+
+#if !defined(BOOST_FUNCTIONAL_HASH_FWD_HPP)
+#define BOOST_FUNCTIONAL_HASH_FWD_HPP
+
+#if defined(_MSC_VER) && (_MSC_VER >= 1020)
+# pragma once
+#endif
+
+#include <cutl/details/boost/config.hpp>
+#include <cstddef>
+#include <cutl/details/boost/detail/workaround.hpp>
+
+namespace cutl_details_boost
+{
+    template <class T> struct hash;
+
+#if BOOST_WORKAROUND(BOOST_MSVC, < 1300)
+    template <class T> void hash_combine(std::size_t& seed, T& v);
+#else
+    template <class T> void hash_combine(std::size_t& seed, T const& v);
+#endif
+
+    template <class It> std::size_t hash_range(It, It);
+    template <class It> void hash_range(std::size_t&, It, It);
+
+#if BOOST_WORKAROUND(__BORLANDC__, BOOST_TESTED_AT(0x551))
+    template <class T> inline std::size_t hash_range(T*, T*);
+    template <class T> inline void hash_range(std::size_t&, T*, T*);
+#endif
+}
+
+#endif