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+//////////////////////////////////////////////////////////////////////////////
+//
+// (C) Copyright Pablo Halpern 2009. 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)
+//
+//////////////////////////////////////////////////////////////////////////////
+//
+// (C) Copyright Ion Gaztanaga 2011-2011. 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/intrusive for documentation.
+//
+//////////////////////////////////////////////////////////////////////////////
+
+#ifndef BOOST_INTRUSIVE_ALLOCATOR_MEMORY_UTIL_HPP
+#define BOOST_INTRUSIVE_ALLOCATOR_MEMORY_UTIL_HPP
+
+#if (defined _MSC_VER) && (_MSC_VER >= 1200)
+# pragma once
+#endif
+
+#include <boost/intrusive/detail/config_begin.hpp>
+#include <boost/intrusive/detail/workaround.hpp>
+#include <boost/intrusive/detail/mpl.hpp>
+#include <boost/intrusive/detail/preprocessor.hpp>
+
+namespace boost {
+namespace intrusive {
+namespace detail {
+
+template <typename T>
+inline T* addressof(T& obj)
+{
+ return static_cast<T*>
+ (static_cast<void*>
+ (const_cast<char*>
+ (&reinterpret_cast<const char&>(obj))
+ )
+ );
+}
+
+template <typename T> struct unvoid { typedef T type; };
+template <> struct unvoid<void> { struct type { }; };
+template <> struct unvoid<const void> { struct type { }; };
+
+template <typename T>
+struct LowPriorityConversion
+{
+ // Convertible from T with user-defined-conversion rank.
+ LowPriorityConversion(const T&) { }
+};
+
+// Infrastructure for providing a default type for T::TNAME if absent.
+#define BOOST_INTRUSIVE_INSTANTIATE_DEFAULT_TYPE_TMPLT(TNAME) \
+ template <typename T, typename DefaultType> \
+ struct boost_intrusive_default_type_ ## TNAME \
+ { \
+ template <typename X> \
+ static char test(int, typename X::TNAME*); \
+ \
+ template <typename X> \
+ static int test(boost::intrusive::detail:: \
+ LowPriorityConversion<int>, void*); \
+ \
+ struct DefaultWrap { typedef DefaultType TNAME; }; \
+ \
+ static const bool value = (1 == sizeof(test<T>(0, 0))); \
+ \
+ typedef typename \
+ ::boost::intrusive::detail::if_c \
+ <value, T, DefaultWrap>::type::TNAME type; \
+ }; \
+ \
+ template <typename T, typename DefaultType> \
+ struct boost_intrusive_eval_default_type_ ## TNAME \
+ { \
+ template <typename X> \
+ static char test(int, typename X::TNAME*); \
+ \
+ template <typename X> \
+ static int test(boost::intrusive::detail:: \
+ LowPriorityConversion<int>, void*); \
+ \
+ struct DefaultWrap \
+ { typedef typename DefaultType::type TNAME; }; \
+ \
+ static const bool value = (1 == sizeof(test<T>(0, 0))); \
+ \
+ typedef typename \
+ ::boost::intrusive::detail::eval_if_c \
+ < value \
+ , ::boost::intrusive::detail::identity<T> \
+ , ::boost::intrusive::detail::identity<DefaultWrap> \
+ >::type::TNAME type; \
+ }; \
+//
+
+#define BOOST_INTRUSIVE_OBTAIN_TYPE_WITH_DEFAULT(INSTANTIATION_NS_PREFIX, T, TNAME, TIMPL) \
+ typename INSTANTIATION_NS_PREFIX \
+ boost_intrusive_default_type_ ## TNAME< T, TIMPL >::type \
+//
+
+#define BOOST_INTRUSIVE_OBTAIN_TYPE_WITH_EVAL_DEFAULT(INSTANTIATION_NS_PREFIX, T, TNAME, TIMPL) \
+ typename INSTANTIATION_NS_PREFIX \
+ boost_intrusive_eval_default_type_ ## TNAME< T, TIMPL >::type \
+//
+
+}}} //namespace boost::intrusive::detail
+
+#include <boost/intrusive/detail/has_member_function_callable_with.hpp>
+
+#define BOOST_INTRUSIVE_HAS_MEMBER_FUNCTION_CALLABLE_WITH_FUNCNAME pointer_to
+#define BOOST_INTRUSIVE_HAS_MEMBER_FUNCTION_CALLABLE_WITH_NS_BEGIN namespace boost { namespace intrusive { namespace detail {
+#define BOOST_INTRUSIVE_HAS_MEMBER_FUNCTION_CALLABLE_WITH_NS_END }}}
+#define BOOST_PP_ITERATION_PARAMS_1 (3, (0, 1, <boost/intrusive/detail/has_member_function_callable_with.hpp>))
+#include BOOST_PP_ITERATE()
+
+#define BOOST_INTRUSIVE_HAS_MEMBER_FUNCTION_CALLABLE_WITH_FUNCNAME static_cast_from
+#define BOOST_INTRUSIVE_HAS_MEMBER_FUNCTION_CALLABLE_WITH_NS_BEGIN namespace boost { namespace intrusive { namespace detail {
+#define BOOST_INTRUSIVE_HAS_MEMBER_FUNCTION_CALLABLE_WITH_NS_END }}}
+#define BOOST_PP_ITERATION_PARAMS_1 (3, (0, 1, <boost/intrusive/detail/has_member_function_callable_with.hpp>))
+#include BOOST_PP_ITERATE()
+
+#define BOOST_INTRUSIVE_HAS_MEMBER_FUNCTION_CALLABLE_WITH_FUNCNAME const_cast_from
+#define BOOST_INTRUSIVE_HAS_MEMBER_FUNCTION_CALLABLE_WITH_NS_BEGIN namespace boost { namespace intrusive { namespace detail {
+#define BOOST_INTRUSIVE_HAS_MEMBER_FUNCTION_CALLABLE_WITH_NS_END }}}
+#define BOOST_PP_ITERATION_PARAMS_1 (3, (0, 1, <boost/intrusive/detail/has_member_function_callable_with.hpp>))
+#include BOOST_PP_ITERATE()
+
+#define BOOST_INTRUSIVE_HAS_MEMBER_FUNCTION_CALLABLE_WITH_FUNCNAME dynamic_cast_from
+#define BOOST_INTRUSIVE_HAS_MEMBER_FUNCTION_CALLABLE_WITH_NS_BEGIN namespace boost { namespace intrusive { namespace detail {
+#define BOOST_INTRUSIVE_HAS_MEMBER_FUNCTION_CALLABLE_WITH_NS_END }}}
+#define BOOST_PP_ITERATION_PARAMS_1 (3, (0, 1, <boost/intrusive/detail/has_member_function_callable_with.hpp>))
+#include BOOST_PP_ITERATE()
+
+namespace boost {
+namespace intrusive {
+namespace detail {
+
+BOOST_INTRUSIVE_INSTANTIATE_DEFAULT_TYPE_TMPLT(element_type)
+BOOST_INTRUSIVE_INSTANTIATE_DEFAULT_TYPE_TMPLT(difference_type)
+
+//////////////////////
+//struct first_param
+//////////////////////
+
+template <typename T> struct first_param
+{ typedef void type; };
+
+#if !defined(BOOST_NO_VARIADIC_TEMPLATES)
+
+ template <template <typename, typename...> class TemplateClass, typename T, typename... Args>
+ struct first_param< TemplateClass<T, Args...> >
+ {
+ typedef T type;
+ };
+
+#else //C++03 compilers
+
+ #define BOOST_PP_LOCAL_MACRO(n) \
+ template < template <typename \
+ BOOST_PP_ENUM_TRAILING(n, BOOST_INTRUSIVE_PP_IDENTITY, typename) > \
+ class TemplateClass \
+ , typename T BOOST_PP_ENUM_TRAILING_PARAMS(n, class P)> \
+ struct first_param \
+ < TemplateClass<T BOOST_PP_ENUM_TRAILING_PARAMS(n, P)> > \
+ { \
+ typedef T type; \
+ }; \
+ //
+ #define BOOST_PP_LOCAL_LIMITS (0, BOOST_INTRUSIVE_MAX_CONSTRUCTOR_PARAMETERS)
+ #include BOOST_PP_LOCAL_ITERATE()
+
+#endif //!defined(BOOST_NO_VARIADIC_TEMPLATES)
+
+///////////////////////////
+//struct type_rebind_mode
+///////////////////////////
+template <typename Ptr, typename T>
+struct type_has_rebind
+{
+ template <typename X>
+ static char test(int, typename X::template rebind<T>*);
+
+ template <typename X>
+ static int test(boost::intrusive::detail::LowPriorityConversion<int>, void*);
+
+ static const bool value = (1 == sizeof(test<Ptr>(0, 0)));
+};
+
+template <typename Ptr, typename T>
+struct type_has_rebind_other
+{
+ template <typename X>
+ static char test(int, typename X::template rebind<T>::other*);
+
+ template <typename X>
+ static int test(boost::intrusive::detail::LowPriorityConversion<int>, void*);
+
+ static const bool value = (1 == sizeof(test<Ptr>(0, 0)));
+};
+
+template <typename Ptr, typename T>
+struct type_rebind_mode
+{
+ template <typename X>
+ static char test(int, typename X::template rebind<T>::other*);
+
+ template <typename X>
+ static int test(boost::intrusive::detail::LowPriorityConversion<int>, void*);
+
+ static const unsigned int rebind = (unsigned int)type_has_rebind<Ptr, T>::value;
+ static const unsigned int rebind_other = (unsigned int)type_has_rebind_other<Ptr, T>::value;
+ static const unsigned int mode = rebind + rebind*rebind_other;
+};
+
+////////////////////////
+//struct type_rebinder
+////////////////////////
+template <typename Ptr, typename U, unsigned int RebindMode = type_rebind_mode<Ptr, U>::mode>
+struct type_rebinder;
+
+// Implementation of pointer_traits<Ptr>::rebind if Ptr has
+// its own rebind::other type (C++03)
+template <typename Ptr, typename U>
+struct type_rebinder< Ptr, U, 2u >
+{
+ typedef typename Ptr::template rebind<U>::other type;
+};
+
+// Implementation of pointer_traits<Ptr>::rebind if Ptr has
+// its own rebind template.
+template <typename Ptr, typename U>
+struct type_rebinder< Ptr, U, 1u >
+{
+ typedef typename Ptr::template rebind<U> type;
+};
+
+// Specialization of pointer_traits<Ptr>::rebind if Ptr does not
+// have its own rebind template but has a the form Ptr<class T,
+// OtherArgs>, where OtherArgs comprises zero or more type parameters.
+// Many pointers fit this form, hence many pointers will get a
+// reasonable default for rebind.
+#if !defined(BOOST_NO_VARIADIC_TEMPLATES)
+
+template <template <class, class...> class Ptr, typename T, class... Tn, class U>
+struct type_rebinder<Ptr<T, Tn...>, U, 0u >
+{
+ typedef Ptr<U, Tn...> type;
+};
+
+#else //C++03 compilers
+
+#define BOOST_PP_LOCAL_MACRO(n) \
+template < template <typename \
+ BOOST_PP_ENUM_TRAILING(n, BOOST_INTRUSIVE_PP_IDENTITY, typename) > \
+ class Ptr \
+ , typename T BOOST_PP_ENUM_TRAILING_PARAMS(n, class P) \
+ , class U> \
+struct type_rebinder \
+ < Ptr<T BOOST_PP_ENUM_TRAILING_PARAMS(n, P)>, U, 0u > \
+{ \
+ typedef Ptr<U BOOST_PP_ENUM_TRAILING_PARAMS(n, P)> type; \
+}; \
+//
+#define BOOST_PP_LOCAL_LIMITS (0, BOOST_INTRUSIVE_MAX_CONSTRUCTOR_PARAMETERS)
+#include BOOST_PP_LOCAL_ITERATE()
+
+#endif //!defined(BOOST_NO_VARIADIC_TEMPLATES)
+
+} //namespace detail {
+} //namespace intrusive {
+} //namespace boost {
+
+#include <boost/intrusive/detail/config_end.hpp>
+
+#endif // ! defined(BOOST_INTRUSIVE_ALLOCATOR_MEMORY_UTIL_HPP)