In common.h, define func_lib for function objects.  In configure.ac, define HAVE_STD_FUNCTION and HAVE_BOOST_FUNCTION.  Include function headers in ndnboost.
diff --git a/ndnboost/unordered/unordered_set.hpp b/ndnboost/unordered/unordered_set.hpp
new file mode 100644
index 0000000..5a68be6
--- /dev/null
+++ b/ndnboost/unordered/unordered_set.hpp
@@ -0,0 +1,1549 @@
+
+// Copyright (C) 2003-2004 Jeremy B. Maitin-Shepard.
+// Copyright (C) 2005-2011 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)
+
+//  See http://www.boost.org/libs/unordered for documentation
+
+#ifndef BOOST_UNORDERED_UNORDERED_SET_HPP_INCLUDED
+#define BOOST_UNORDERED_UNORDERED_SET_HPP_INCLUDED
+
+#if defined(_MSC_VER) && (_MSC_VER >= 1020)
+# pragma once
+#endif
+
+#include <ndnboost/unordered/unordered_set_fwd.hpp>
+#include <ndnboost/unordered/detail/equivalent.hpp>
+#include <ndnboost/unordered/detail/unique.hpp>
+#include <ndnboost/unordered/detail/util.hpp>
+#include <ndnboost/functional/hash.hpp>
+#include <ndnboost/move/move.hpp>
+
+#if !defined(BOOST_NO_CXX11_HDR_INITIALIZER_LIST)
+#include <initializer_list>
+#endif
+
+#if defined(BOOST_MSVC)
+#pragma warning(push)
+#if BOOST_MSVC >= 1400
+#pragma warning(disable:4396) //the inline specifier cannot be used when a
+                              // friend declaration refers to a specialization
+                              // of a function template
+#endif
+#endif
+
+namespace ndnboost
+{
+namespace unordered
+{
+    template <class T, class H, class P, class A>
+    class unordered_set
+    {
+#if defined(BOOST_UNORDERED_USE_MOVE)
+        BOOST_COPYABLE_AND_MOVABLE(unordered_set)
+#endif
+    public:
+
+        typedef T key_type;
+        typedef T value_type;
+        typedef H hasher;
+        typedef P key_equal;
+        typedef A allocator_type;
+
+    private:
+
+        typedef ndnboost::unordered::detail::set<A, T, H, P> types;
+        typedef typename types::traits allocator_traits;
+        typedef typename types::table table;
+
+    public:
+
+        typedef typename allocator_traits::pointer pointer;
+        typedef typename allocator_traits::const_pointer const_pointer;
+
+        typedef value_type& reference;
+        typedef value_type const& const_reference;
+
+        typedef std::size_t size_type;
+        typedef std::ptrdiff_t difference_type;
+
+        typedef typename table::cl_iterator const_local_iterator;
+        typedef typename table::cl_iterator local_iterator;
+        typedef typename table::c_iterator const_iterator;
+        typedef typename table::c_iterator iterator;
+
+    private:
+
+        table table_;
+
+    public:
+
+        // constructors
+
+        explicit unordered_set(
+                size_type = ndnboost::unordered::detail::default_bucket_count,
+                const hasher& = hasher(),
+                const key_equal& = key_equal(),
+                const allocator_type& = allocator_type());
+
+        explicit unordered_set(allocator_type const&);
+
+        template <class InputIt>
+        unordered_set(InputIt, InputIt);
+
+        template <class InputIt>
+        unordered_set(
+                InputIt, InputIt,
+                size_type,
+                const hasher& = hasher(),
+                const key_equal& = key_equal());
+
+        template <class InputIt>
+        unordered_set(
+                InputIt, InputIt,
+                size_type,
+                const hasher&,
+                const key_equal&,
+                const allocator_type&);
+
+        // copy/move constructors
+
+        unordered_set(unordered_set const&);
+
+        unordered_set(unordered_set const&, allocator_type const&);
+
+#if defined(BOOST_UNORDERED_USE_MOVE)
+        unordered_set(BOOST_RV_REF(unordered_set) other)
+            : table_(other.table_, ndnboost::unordered::detail::move_tag())
+        {
+        }
+#elif !defined(BOOST_NO_CXX11_RVALUE_REFERENCES)
+        unordered_set(unordered_set&& other)
+            : table_(other.table_, ndnboost::unordered::detail::move_tag())
+        {
+        }
+#endif
+
+#if !defined(BOOST_NO_CXX11_RVALUE_REFERENCES)
+        unordered_set(unordered_set&&, allocator_type const&);
+#endif
+
+#if !defined(BOOST_NO_CXX11_HDR_INITIALIZER_LIST)
+        unordered_set(
+                std::initializer_list<value_type>,
+                size_type = ndnboost::unordered::detail::default_bucket_count,
+                const hasher& = hasher(),
+                const key_equal&l = key_equal(),
+                const allocator_type& = allocator_type());
+#endif
+
+        // Destructor
+
+        ~unordered_set();
+
+        // Assign
+
+#if defined(BOOST_UNORDERED_USE_MOVE)
+        unordered_set& operator=(BOOST_COPY_ASSIGN_REF(unordered_set) x)
+        {
+            table_.assign(x.table_);
+            return *this;
+        }
+
+        unordered_set& operator=(BOOST_RV_REF(unordered_set) x)
+        {
+            table_.move_assign(x.table_);
+            return *this;
+        }
+#else
+        unordered_set& operator=(unordered_set const& x)
+        {
+            table_.assign(x.table_);
+            return *this;
+        }
+
+#if !defined(BOOST_NO_CXX11_RVALUE_REFERENCES)
+        unordered_set& operator=(unordered_set&& x)
+        {
+            table_.move_assign(x.table_);
+            return *this;
+        }
+#endif
+#endif
+
+#if !defined(BOOST_NO_CXX11_HDR_INITIALIZER_LIST)
+        unordered_set& operator=(std::initializer_list<value_type>);
+#endif
+
+        allocator_type get_allocator() const BOOST_NOEXCEPT
+        {
+            return table_.node_alloc();
+        }
+
+        // size and capacity
+
+        bool empty() const BOOST_NOEXCEPT
+        {
+            return table_.size_ == 0;
+        }
+
+        size_type size() const BOOST_NOEXCEPT
+        {
+            return table_.size_;
+        }
+
+        size_type max_size() const BOOST_NOEXCEPT;
+
+        // iterators
+
+        iterator begin() BOOST_NOEXCEPT
+        {
+            return table_.begin();
+        }
+
+        const_iterator begin() const BOOST_NOEXCEPT
+        {
+            return table_.begin();
+        }
+
+        iterator end() BOOST_NOEXCEPT
+        {
+            return iterator();
+        }
+
+        const_iterator end() const BOOST_NOEXCEPT
+        {
+            return const_iterator();
+        }
+
+        const_iterator cbegin() const BOOST_NOEXCEPT
+        {
+            return table_.begin();
+        }
+
+        const_iterator cend() const BOOST_NOEXCEPT
+        {
+            return const_iterator();
+        }
+
+        // emplace
+
+#if !defined(BOOST_NO_CXX11_VARIADIC_TEMPLATES)
+        template <class... Args>
+        std::pair<iterator, bool> emplace(BOOST_FWD_REF(Args)... args)
+        {
+            return table_.emplace(ndnboost::forward<Args>(args)...);
+        }
+
+        template <class... Args>
+        iterator emplace_hint(const_iterator, BOOST_FWD_REF(Args)... args)
+        {
+            return table_.emplace(ndnboost::forward<Args>(args)...).first;
+        }
+#else
+
+#if !BOOST_WORKAROUND(__SUNPRO_CC, BOOST_TESTED_AT(0x5100))
+
+        // 0 argument emplace requires special treatment in case
+        // the container is instantiated with a value type that
+        // doesn't have a default constructor.
+
+        std::pair<iterator, bool> emplace(
+                ndnboost::unordered::detail::empty_emplace
+                    = ndnboost::unordered::detail::empty_emplace(),
+                value_type v = value_type())
+        {
+            return this->emplace(ndnboost::move(v));
+        }
+
+        iterator emplace_hint(const_iterator hint,
+                ndnboost::unordered::detail::empty_emplace
+                    = ndnboost::unordered::detail::empty_emplace(),
+                value_type v = value_type()
+            )
+        {
+            return this->emplace_hint(hint, ndnboost::move(v));
+        }
+
+#endif
+
+        template <typename A0>
+        std::pair<iterator, bool> emplace(BOOST_FWD_REF(A0) a0)
+        {
+            return table_.emplace(
+                ndnboost::unordered::detail::create_emplace_args(
+                    ndnboost::forward<A0>(a0))
+            );
+        }
+
+        template <typename A0>
+        iterator emplace_hint(const_iterator, BOOST_FWD_REF(A0) a0)
+        {
+            return table_.emplace(
+                ndnboost::unordered::detail::create_emplace_args(
+                    ndnboost::forward<A0>(a0))
+            ).first;
+        }
+
+        template <typename A0, typename A1>
+        std::pair<iterator, bool> emplace(
+            BOOST_FWD_REF(A0) a0,
+            BOOST_FWD_REF(A1) a1)
+        {
+            return table_.emplace(
+                ndnboost::unordered::detail::create_emplace_args(
+                    ndnboost::forward<A0>(a0),
+                    ndnboost::forward<A1>(a1))
+            );
+        }
+
+        template <typename A0, typename A1>
+        iterator emplace_hint(const_iterator,
+            BOOST_FWD_REF(A0) a0,
+            BOOST_FWD_REF(A1) a1)
+        {
+            return table_.emplace(
+                ndnboost::unordered::detail::create_emplace_args(
+                    ndnboost::forward<A0>(a0),
+                    ndnboost::forward<A1>(a1))
+            ).first;
+        }
+
+        template <typename A0, typename A1, typename A2>
+        std::pair<iterator, bool> emplace(
+            BOOST_FWD_REF(A0) a0,
+            BOOST_FWD_REF(A1) a1,
+            BOOST_FWD_REF(A2) a2)
+        {
+            return table_.emplace(
+                ndnboost::unordered::detail::create_emplace_args(
+                    ndnboost::forward<A0>(a0),
+                    ndnboost::forward<A1>(a1),
+                    ndnboost::forward<A2>(a2))
+            );
+        }
+
+        template <typename A0, typename A1, typename A2>
+        iterator emplace_hint(const_iterator,
+            BOOST_FWD_REF(A0) a0,
+            BOOST_FWD_REF(A1) a1,
+            BOOST_FWD_REF(A2) a2)
+        {
+            return table_.emplace(
+                ndnboost::unordered::detail::create_emplace_args(
+                    ndnboost::forward<A0>(a0),
+                    ndnboost::forward<A1>(a1),
+                    ndnboost::forward<A2>(a2))
+            ).first;
+        }
+
+#define BOOST_UNORDERED_EMPLACE(z, n, _)                                    \
+            template <                                                      \
+                BOOST_PP_ENUM_PARAMS_Z(z, n, typename A)                    \
+            >                                                               \
+            std::pair<iterator, bool> emplace(                              \
+                    BOOST_PP_ENUM_##z(n, BOOST_UNORDERED_FWD_PARAM, a)      \
+            )                                                               \
+            {                                                               \
+                return table_.emplace(                                      \
+                    ndnboost::unordered::detail::create_emplace_args(          \
+                        BOOST_PP_ENUM_##z(n, BOOST_UNORDERED_CALL_FORWARD,  \
+                            a)                                              \
+                ));                                                         \
+            }                                                               \
+                                                                            \
+            template <                                                      \
+                BOOST_PP_ENUM_PARAMS_Z(z, n, typename A)                    \
+            >                                                               \
+            iterator emplace_hint(                                          \
+                    const_iterator,                                         \
+                    BOOST_PP_ENUM_##z(n, BOOST_UNORDERED_FWD_PARAM, a)      \
+            )                                                               \
+            {                                                               \
+                return table_.emplace(                                      \
+                    ndnboost::unordered::detail::create_emplace_args(          \
+                        BOOST_PP_ENUM_##z(n, BOOST_UNORDERED_CALL_FORWARD,  \
+                            a)                                              \
+                )).first;                                                   \
+            }
+
+        BOOST_PP_REPEAT_FROM_TO(4, BOOST_UNORDERED_EMPLACE_LIMIT,
+            BOOST_UNORDERED_EMPLACE, _)
+
+#undef BOOST_UNORDERED_EMPLACE
+
+#endif
+
+        std::pair<iterator, bool> insert(value_type const& x)
+        {
+            return this->emplace(x);
+        }
+
+        std::pair<iterator, bool> insert(BOOST_UNORDERED_RV_REF(value_type) x)
+        {
+            return this->emplace(ndnboost::move(x));
+        }
+
+        iterator insert(const_iterator hint, value_type const& x)
+        {
+            return this->emplace_hint(hint, x);
+        }
+
+        iterator insert(const_iterator hint,
+                BOOST_UNORDERED_RV_REF(value_type) x)
+        {
+            return this->emplace_hint(hint, ndnboost::move(x));
+        }
+
+        template <class InputIt> void insert(InputIt, InputIt);
+
+#if !defined(BOOST_NO_CXX11_HDR_INITIALIZER_LIST)
+        void insert(std::initializer_list<value_type>);
+#endif
+
+        iterator erase(const_iterator);
+        size_type erase(const key_type&);
+        iterator erase(const_iterator, const_iterator);
+        void quick_erase(const_iterator it) { erase(it); }
+        void erase_return_void(const_iterator it) { erase(it); }
+
+        void clear();
+        void swap(unordered_set&);
+
+        // observers
+
+        hasher hash_function() const;
+        key_equal key_eq() const;
+
+        // lookup
+
+        const_iterator find(const key_type&) const;
+
+        template <class CompatibleKey, class CompatibleHash,
+            class CompatiblePredicate>
+        const_iterator find(
+                CompatibleKey const&,
+                CompatibleHash const&,
+                CompatiblePredicate const&) const;
+
+        size_type count(const key_type&) const;
+
+        std::pair<const_iterator, const_iterator>
+        equal_range(const key_type&) const;
+
+        // bucket interface
+
+        size_type bucket_count() const BOOST_NOEXCEPT
+        {
+            return table_.bucket_count_;
+        }
+
+        size_type max_bucket_count() const BOOST_NOEXCEPT
+        {
+            return table_.max_bucket_count();
+        }
+
+        size_type bucket_size(size_type) const;
+
+        size_type bucket(const key_type& k) const
+        {
+            return table_.hash_to_bucket(table_.hash(k));
+        }
+
+        local_iterator begin(size_type n)
+        {
+            return local_iterator(
+                table_.begin(n), n, table_.bucket_count_);
+        }
+
+        const_local_iterator begin(size_type n) const
+        {
+            return const_local_iterator(
+                table_.begin(n), n, table_.bucket_count_);
+        }
+
+        local_iterator end(size_type)
+        {
+            return local_iterator();
+        }
+
+        const_local_iterator end(size_type) const
+        {
+            return const_local_iterator();
+        }
+
+        const_local_iterator cbegin(size_type n) const
+        {
+            return const_local_iterator(
+                table_.begin(n), n, table_.bucket_count_);
+        }
+
+        const_local_iterator cend(size_type) const
+        {
+            return const_local_iterator();
+        }
+
+        // hash policy
+
+        float max_load_factor() const BOOST_NOEXCEPT
+        {
+            return table_.mlf_;
+        }
+
+        float load_factor() const BOOST_NOEXCEPT;
+        void max_load_factor(float) BOOST_NOEXCEPT;
+        void rehash(size_type);
+        void reserve(size_type);
+
+#if !BOOST_WORKAROUND(__BORLANDC__, < 0x0582)
+        friend bool operator==<T,H,P,A>(
+                unordered_set const&, unordered_set const&);
+        friend bool operator!=<T,H,P,A>(
+                unordered_set const&, unordered_set const&);
+#endif
+    }; // class template unordered_set
+
+    template <class T, class H, class P, class A>
+    class unordered_multiset
+    {
+#if defined(BOOST_UNORDERED_USE_MOVE)
+        BOOST_COPYABLE_AND_MOVABLE(unordered_multiset)
+#endif
+    public:
+
+        typedef T key_type;
+        typedef T value_type;
+        typedef H hasher;
+        typedef P key_equal;
+        typedef A allocator_type;
+
+    private:
+
+        typedef ndnboost::unordered::detail::multiset<A, T, H, P> types;
+        typedef typename types::traits allocator_traits;
+        typedef typename types::table table;
+
+    public:
+
+        typedef typename allocator_traits::pointer pointer;
+        typedef typename allocator_traits::const_pointer const_pointer;
+
+        typedef value_type& reference;
+        typedef value_type const& const_reference;
+
+        typedef std::size_t size_type;
+        typedef std::ptrdiff_t difference_type;
+
+        typedef typename table::cl_iterator const_local_iterator;
+        typedef typename table::cl_iterator local_iterator;
+        typedef typename table::c_iterator const_iterator;
+        typedef typename table::c_iterator iterator;
+
+    private:
+
+        table table_;
+
+    public:
+
+        // constructors
+
+        explicit unordered_multiset(
+                size_type = ndnboost::unordered::detail::default_bucket_count,
+                const hasher& = hasher(),
+                const key_equal& = key_equal(),
+                const allocator_type& = allocator_type());
+
+        explicit unordered_multiset(allocator_type const&);
+
+        template <class InputIt>
+        unordered_multiset(InputIt, InputIt);
+
+        template <class InputIt>
+        unordered_multiset(
+                InputIt, InputIt,
+                size_type,
+                const hasher& = hasher(),
+                const key_equal& = key_equal());
+
+        template <class InputIt>
+        unordered_multiset(
+                InputIt, InputIt,
+                size_type,
+                const hasher&,
+                const key_equal&,
+                const allocator_type&);
+
+        // copy/move constructors
+
+        unordered_multiset(unordered_multiset const&);
+
+        unordered_multiset(unordered_multiset const&, allocator_type const&);
+
+#if defined(BOOST_UNORDERED_USE_MOVE)
+        unordered_multiset(BOOST_RV_REF(unordered_multiset) other)
+            : table_(other.table_, ndnboost::unordered::detail::move_tag())
+        {
+        }
+#elif !defined(BOOST_NO_CXX11_RVALUE_REFERENCES)
+        unordered_multiset(unordered_multiset&& other)
+            : table_(other.table_, ndnboost::unordered::detail::move_tag())
+        {
+        }
+#endif
+
+#if !defined(BOOST_NO_CXX11_RVALUE_REFERENCES)
+        unordered_multiset(unordered_multiset&&, allocator_type const&);
+#endif
+
+#if !defined(BOOST_NO_CXX11_HDR_INITIALIZER_LIST)
+        unordered_multiset(
+                std::initializer_list<value_type>,
+                size_type = ndnboost::unordered::detail::default_bucket_count,
+                const hasher& = hasher(),
+                const key_equal&l = key_equal(),
+                const allocator_type& = allocator_type());
+#endif
+
+        // Destructor
+
+        ~unordered_multiset();
+
+        // Assign
+
+#if defined(BOOST_UNORDERED_USE_MOVE)
+        unordered_multiset& operator=(
+                BOOST_COPY_ASSIGN_REF(unordered_multiset) x)
+        {
+            table_.assign(x.table_);
+            return *this;
+        }
+
+        unordered_multiset& operator=(BOOST_RV_REF(unordered_multiset) x)
+        {
+            table_.move_assign(x.table_);
+            return *this;
+        }
+#else
+        unordered_multiset& operator=(unordered_multiset const& x)
+        {
+            table_.assign(x.table_);
+            return *this;
+        }
+
+#if !defined(BOOST_NO_CXX11_RVALUE_REFERENCES)
+        unordered_multiset& operator=(unordered_multiset&& x)
+        {
+            table_.move_assign(x.table_);
+            return *this;
+        }
+#endif
+#endif
+
+#if !defined(BOOST_NO_CXX11_HDR_INITIALIZER_LIST)
+        unordered_multiset& operator=(std::initializer_list<value_type>);
+#endif
+
+        allocator_type get_allocator() const BOOST_NOEXCEPT
+        {
+            return table_.node_alloc();
+        }
+
+        // size and capacity
+
+        bool empty() const BOOST_NOEXCEPT
+        {
+            return table_.size_ == 0;
+        }
+
+        size_type size() const BOOST_NOEXCEPT
+        {
+            return table_.size_;
+        }
+
+        size_type max_size() const BOOST_NOEXCEPT;
+
+        // iterators
+
+        iterator begin() BOOST_NOEXCEPT
+        {
+            return iterator(table_.begin());
+        }
+
+        const_iterator begin() const BOOST_NOEXCEPT
+        {
+            return const_iterator(table_.begin());
+        }
+
+        iterator end() BOOST_NOEXCEPT
+        {
+            return iterator();
+        }
+
+        const_iterator end() const BOOST_NOEXCEPT
+        {
+            return const_iterator();
+        }
+
+        const_iterator cbegin() const BOOST_NOEXCEPT
+        {
+            return const_iterator(table_.begin());
+        }
+
+        const_iterator cend() const BOOST_NOEXCEPT
+        {
+            return const_iterator();
+        }
+
+        // emplace
+
+#if !defined(BOOST_NO_CXX11_VARIADIC_TEMPLATES)
+        template <class... Args>
+        iterator emplace(BOOST_FWD_REF(Args)... args)
+        {
+            return table_.emplace(ndnboost::forward<Args>(args)...);
+        }
+
+        template <class... Args>
+        iterator emplace_hint(const_iterator, BOOST_FWD_REF(Args)... args)
+        {
+            return table_.emplace(ndnboost::forward<Args>(args)...);
+        }
+#else
+
+#if !BOOST_WORKAROUND(__SUNPRO_CC, BOOST_TESTED_AT(0x5100))
+
+        // 0 argument emplace requires special treatment in case
+        // the container is instantiated with a value type that
+        // doesn't have a default constructor.
+
+        iterator emplace(
+                ndnboost::unordered::detail::empty_emplace
+                    = ndnboost::unordered::detail::empty_emplace(),
+                value_type v = value_type())
+        {
+            return this->emplace(ndnboost::move(v));
+        }
+
+        iterator emplace_hint(const_iterator hint,
+                ndnboost::unordered::detail::empty_emplace
+                    = ndnboost::unordered::detail::empty_emplace(),
+                value_type v = value_type()
+            )
+        {
+            return this->emplace_hint(hint, ndnboost::move(v));
+        }
+
+#endif
+
+        template <typename A0>
+        iterator emplace(BOOST_FWD_REF(A0) a0)
+        {
+            return table_.emplace(
+                ndnboost::unordered::detail::create_emplace_args(
+                    ndnboost::forward<A0>(a0))
+            );
+        }
+
+        template <typename A0>
+        iterator emplace_hint(const_iterator, BOOST_FWD_REF(A0) a0)
+        {
+            return table_.emplace(
+                ndnboost::unordered::detail::create_emplace_args(
+                    ndnboost::forward<A0>(a0))
+            );
+        }
+
+        template <typename A0, typename A1>
+        iterator emplace(
+            BOOST_FWD_REF(A0) a0,
+            BOOST_FWD_REF(A1) a1)
+        {
+            return table_.emplace(
+                ndnboost::unordered::detail::create_emplace_args(
+                    ndnboost::forward<A0>(a0),
+                    ndnboost::forward<A1>(a1))
+            );
+        }
+
+        template <typename A0, typename A1>
+        iterator emplace_hint(const_iterator,
+            BOOST_FWD_REF(A0) a0,
+            BOOST_FWD_REF(A1) a1)
+        {
+            return table_.emplace(
+                ndnboost::unordered::detail::create_emplace_args(
+                    ndnboost::forward<A0>(a0),
+                    ndnboost::forward<A1>(a1))
+            );
+        }
+
+        template <typename A0, typename A1, typename A2>
+        iterator emplace(
+            BOOST_FWD_REF(A0) a0,
+            BOOST_FWD_REF(A1) a1,
+            BOOST_FWD_REF(A2) a2)
+        {
+            return table_.emplace(
+                ndnboost::unordered::detail::create_emplace_args(
+                    ndnboost::forward<A0>(a0),
+                    ndnboost::forward<A1>(a1),
+                    ndnboost::forward<A2>(a2))
+            );
+        }
+
+        template <typename A0, typename A1, typename A2>
+        iterator emplace_hint(const_iterator,
+            BOOST_FWD_REF(A0) a0,
+            BOOST_FWD_REF(A1) a1,
+            BOOST_FWD_REF(A2) a2)
+        {
+            return table_.emplace(
+                ndnboost::unordered::detail::create_emplace_args(
+                    ndnboost::forward<A0>(a0),
+                    ndnboost::forward<A1>(a1),
+                    ndnboost::forward<A2>(a2))
+            );
+        }
+
+#define BOOST_UNORDERED_EMPLACE(z, n, _)                                    \
+            template <                                                      \
+                BOOST_PP_ENUM_PARAMS_Z(z, n, typename A)                    \
+            >                                                               \
+            iterator emplace(                                               \
+                    BOOST_PP_ENUM_##z(n, BOOST_UNORDERED_FWD_PARAM, a)      \
+            )                                                               \
+            {                                                               \
+                return table_.emplace(                                      \
+                    ndnboost::unordered::detail::create_emplace_args(          \
+                        BOOST_PP_ENUM_##z(n, BOOST_UNORDERED_CALL_FORWARD,  \
+                            a)                                              \
+                ));                                                         \
+            }                                                               \
+                                                                            \
+            template <                                                      \
+                BOOST_PP_ENUM_PARAMS_Z(z, n, typename A)                    \
+            >                                                               \
+            iterator emplace_hint(                                          \
+                    const_iterator,                                         \
+                    BOOST_PP_ENUM_##z(n, BOOST_UNORDERED_FWD_PARAM, a)      \
+            )                                                               \
+            {                                                               \
+                return table_.emplace(                                      \
+                    ndnboost::unordered::detail::create_emplace_args(          \
+                        BOOST_PP_ENUM_##z(n, BOOST_UNORDERED_CALL_FORWARD,  \
+                            a)                                              \
+                ));                                                         \
+            }
+
+        BOOST_PP_REPEAT_FROM_TO(4, BOOST_UNORDERED_EMPLACE_LIMIT,
+            BOOST_UNORDERED_EMPLACE, _)
+
+#undef BOOST_UNORDERED_EMPLACE
+
+#endif
+
+        iterator insert(value_type const& x)
+        {
+            return this->emplace(x);
+        }
+
+        iterator insert(BOOST_UNORDERED_RV_REF(value_type) x)
+        {
+            return this->emplace(ndnboost::move(x));
+        }
+
+        iterator insert(const_iterator hint, value_type const& x)
+        {
+            return this->emplace_hint(hint, x);
+        }
+
+        iterator insert(const_iterator hint,
+                BOOST_UNORDERED_RV_REF(value_type) x)
+        {
+            return this->emplace_hint(hint, ndnboost::move(x));
+        }
+
+        template <class InputIt> void insert(InputIt, InputIt);
+
+#if !defined(BOOST_NO_CXX11_HDR_INITIALIZER_LIST)
+        void insert(std::initializer_list<value_type>);
+#endif
+
+        iterator erase(const_iterator);
+        size_type erase(const key_type&);
+        iterator erase(const_iterator, const_iterator);
+        void quick_erase(const_iterator it) { erase(it); }
+        void erase_return_void(const_iterator it) { erase(it); }
+
+        void clear();
+        void swap(unordered_multiset&);
+
+        // observers
+
+        hasher hash_function() const;
+        key_equal key_eq() const;
+
+        // lookup
+
+        const_iterator find(const key_type&) const;
+
+        template <class CompatibleKey, class CompatibleHash,
+            class CompatiblePredicate>
+        const_iterator find(
+                CompatibleKey const&,
+                CompatibleHash const&,
+                CompatiblePredicate const&) const;
+
+        size_type count(const key_type&) const;
+
+        std::pair<const_iterator, const_iterator>
+        equal_range(const key_type&) const;
+
+        // bucket interface
+
+        size_type bucket_count() const BOOST_NOEXCEPT
+        {
+            return table_.bucket_count_;
+        }
+
+        size_type max_bucket_count() const BOOST_NOEXCEPT
+        {
+            return table_.max_bucket_count();
+        }
+
+        size_type bucket_size(size_type) const;
+
+        size_type bucket(const key_type& k) const
+        {
+            return table_.hash_to_bucket(table_.hash(k));
+        }
+
+        local_iterator begin(size_type n)
+        {
+            return local_iterator(
+                table_.begin(n), n, table_.bucket_count_);
+        }
+
+        const_local_iterator begin(size_type n) const
+        {
+            return const_local_iterator(
+                table_.begin(n), n, table_.bucket_count_);
+        }
+
+        local_iterator end(size_type)
+        {
+            return local_iterator();
+        }
+
+        const_local_iterator end(size_type) const
+        {
+            return const_local_iterator();
+        }
+
+        const_local_iterator cbegin(size_type n) const
+        {
+            return const_local_iterator(
+                table_.begin(n), n, table_.bucket_count_);
+        }
+
+        const_local_iterator cend(size_type) const
+        {
+            return const_local_iterator();
+        }
+
+        // hash policy
+
+        float max_load_factor() const BOOST_NOEXCEPT
+        {
+            return table_.mlf_;
+        }
+
+        float load_factor() const BOOST_NOEXCEPT;
+        void max_load_factor(float) BOOST_NOEXCEPT;
+        void rehash(size_type);
+        void reserve(size_type);
+
+#if !BOOST_WORKAROUND(__BORLANDC__, < 0x0582)
+        friend bool operator==<T,H,P,A>(
+                unordered_multiset const&, unordered_multiset const&);
+        friend bool operator!=<T,H,P,A>(
+                unordered_multiset const&, unordered_multiset const&);
+#endif
+    }; // class template unordered_multiset
+
+////////////////////////////////////////////////////////////////////////////////
+
+    template <class T, class H, class P, class A>
+    unordered_set<T,H,P,A>::unordered_set(
+            size_type n, const hasher &hf, const key_equal &eql,
+            const allocator_type &a)
+      : table_(n, hf, eql, a)
+    {
+    }
+
+    template <class T, class H, class P, class A>
+    unordered_set<T,H,P,A>::unordered_set(allocator_type const& a)
+      : table_(ndnboost::unordered::detail::default_bucket_count,
+            hasher(), key_equal(), a)
+    {
+    }
+
+    template <class T, class H, class P, class A>
+    unordered_set<T,H,P,A>::unordered_set(
+            unordered_set const& other, allocator_type const& a)
+      : table_(other.table_, a)
+    {
+    }
+
+    template <class T, class H, class P, class A>
+    template <class InputIt>
+    unordered_set<T,H,P,A>::unordered_set(InputIt f, InputIt l)
+      : table_(ndnboost::unordered::detail::initial_size(f, l),
+        hasher(), key_equal(), allocator_type())
+    {
+        table_.insert_range(f, l);
+    }
+
+    template <class T, class H, class P, class A>
+    template <class InputIt>
+    unordered_set<T,H,P,A>::unordered_set(
+            InputIt f, InputIt l,
+            size_type n,
+            const hasher &hf,
+            const key_equal &eql)
+      : table_(ndnboost::unordered::detail::initial_size(f, l, n),
+            hf, eql, allocator_type())
+    {
+        table_.insert_range(f, l);
+    }
+    
+    template <class T, class H, class P, class A>
+    template <class InputIt>
+    unordered_set<T,H,P,A>::unordered_set(
+            InputIt f, InputIt l,
+            size_type n,
+            const hasher &hf,
+            const key_equal &eql,
+            const allocator_type &a)
+      : table_(ndnboost::unordered::detail::initial_size(f, l, n), hf, eql, a)
+    {
+        table_.insert_range(f, l);
+    }
+    
+    template <class T, class H, class P, class A>
+    unordered_set<T,H,P,A>::~unordered_set() {}
+
+    template <class T, class H, class P, class A>
+    unordered_set<T,H,P,A>::unordered_set(
+            unordered_set const& other)
+      : table_(other.table_)
+    {
+    }
+
+#if !defined(BOOST_NO_CXX11_RVALUE_REFERENCES)
+
+    template <class T, class H, class P, class A>
+    unordered_set<T,H,P,A>::unordered_set(
+            unordered_set&& other, allocator_type const& a)
+      : table_(other.table_, a, ndnboost::unordered::detail::move_tag())
+    {
+    }
+
+#endif
+
+#if !defined(BOOST_NO_CXX11_HDR_INITIALIZER_LIST)
+
+    template <class T, class H, class P, class A>
+    unordered_set<T,H,P,A>::unordered_set(
+            std::initializer_list<value_type> list, size_type n,
+            const hasher &hf, const key_equal &eql, const allocator_type &a)
+      : table_(
+            ndnboost::unordered::detail::initial_size(
+                list.begin(), list.end(), n),
+            hf, eql, a)
+    {
+        table_.insert_range(list.begin(), list.end());
+    }
+
+    template <class T, class H, class P, class A>
+    unordered_set<T,H,P,A>& unordered_set<T,H,P,A>::operator=(
+            std::initializer_list<value_type> list)
+    {
+        table_.clear();
+        table_.insert_range(list.begin(), list.end());
+        return *this;
+    }
+
+#endif
+
+    // size and capacity
+
+    template <class T, class H, class P, class A>
+    std::size_t unordered_set<T,H,P,A>::max_size() const BOOST_NOEXCEPT
+    {
+        return table_.max_size();
+    }
+
+    // modifiers
+
+    template <class T, class H, class P, class A>
+    template <class InputIt>
+    void unordered_set<T,H,P,A>::insert(InputIt first, InputIt last)
+    {
+        table_.insert_range(first, last);
+    }
+
+#if !defined(BOOST_NO_CXX11_HDR_INITIALIZER_LIST)
+    template <class T, class H, class P, class A>
+    void unordered_set<T,H,P,A>::insert(
+            std::initializer_list<value_type> list)
+    {
+        table_.insert_range(list.begin(), list.end());
+    }
+#endif
+
+    template <class T, class H, class P, class A>
+    typename unordered_set<T,H,P,A>::iterator
+        unordered_set<T,H,P,A>::erase(const_iterator position)
+    {
+        return table_.erase(position);
+    }
+
+    template <class T, class H, class P, class A>
+    typename unordered_set<T,H,P,A>::size_type
+        unordered_set<T,H,P,A>::erase(const key_type& k)
+    {
+        return table_.erase_key(k);
+    }
+
+    template <class T, class H, class P, class A>
+    typename unordered_set<T,H,P,A>::iterator
+        unordered_set<T,H,P,A>::erase(
+            const_iterator first, const_iterator last)
+    {
+        return table_.erase_range(first, last);
+    }
+
+    template <class T, class H, class P, class A>
+    void unordered_set<T,H,P,A>::clear()
+    {
+        table_.clear();
+    }
+
+    template <class T, class H, class P, class A>
+    void unordered_set<T,H,P,A>::swap(unordered_set& other)
+    {
+        table_.swap(other.table_);
+    }
+
+    // observers
+
+    template <class T, class H, class P, class A>
+    typename unordered_set<T,H,P,A>::hasher
+        unordered_set<T,H,P,A>::hash_function() const
+    {
+        return table_.hash_function();
+    }
+
+    template <class T, class H, class P, class A>
+    typename unordered_set<T,H,P,A>::key_equal
+        unordered_set<T,H,P,A>::key_eq() const
+    {
+        return table_.key_eq();
+    }
+
+    // lookup
+
+    template <class T, class H, class P, class A>
+    typename unordered_set<T,H,P,A>::const_iterator
+        unordered_set<T,H,P,A>::find(const key_type& k) const
+    {
+        return table_.find_node(k);
+    }
+
+    template <class T, class H, class P, class A>
+    template <class CompatibleKey, class CompatibleHash,
+        class CompatiblePredicate>
+    typename unordered_set<T,H,P,A>::const_iterator
+        unordered_set<T,H,P,A>::find(
+            CompatibleKey const& k,
+            CompatibleHash const& hash,
+            CompatiblePredicate const& eq) const
+    {
+        return table_.generic_find_node(k, hash, eq);
+    }
+
+    template <class T, class H, class P, class A>
+    typename unordered_set<T,H,P,A>::size_type
+        unordered_set<T,H,P,A>::count(const key_type& k) const
+    {
+        return table_.count(k);
+    }
+
+    template <class T, class H, class P, class A>
+    std::pair<
+            typename unordered_set<T,H,P,A>::const_iterator,
+            typename unordered_set<T,H,P,A>::const_iterator>
+        unordered_set<T,H,P,A>::equal_range(const key_type& k) const
+    {
+        return table_.equal_range(k);
+    }
+
+    template <class T, class H, class P, class A>
+    typename unordered_set<T,H,P,A>::size_type
+        unordered_set<T,H,P,A>::bucket_size(size_type n) const
+    {
+        return table_.bucket_size(n);
+    }
+
+    // hash policy
+
+    template <class T, class H, class P, class A>
+    float unordered_set<T,H,P,A>::load_factor() const BOOST_NOEXCEPT
+    {
+        return table_.load_factor();
+    }
+
+    template <class T, class H, class P, class A>
+    void unordered_set<T,H,P,A>::max_load_factor(float m) BOOST_NOEXCEPT
+    {
+        table_.max_load_factor(m);
+    }
+
+    template <class T, class H, class P, class A>
+    void unordered_set<T,H,P,A>::rehash(size_type n)
+    {
+        table_.rehash(n);
+    }
+
+    template <class T, class H, class P, class A>
+    void unordered_set<T,H,P,A>::reserve(size_type n)
+    {
+        table_.reserve(n);
+    }
+
+    template <class T, class H, class P, class A>
+    inline bool operator==(
+            unordered_set<T,H,P,A> const& m1,
+            unordered_set<T,H,P,A> const& m2)
+    {
+#if BOOST_WORKAROUND(__CODEGEARC__, BOOST_TESTED_AT(0x0613))
+        struct dummy { unordered_set<T,H,P,A> x; };
+#endif
+        return m1.table_.equals(m2.table_);
+    }
+
+    template <class T, class H, class P, class A>
+    inline bool operator!=(
+            unordered_set<T,H,P,A> const& m1,
+            unordered_set<T,H,P,A> const& m2)
+    {
+#if BOOST_WORKAROUND(__CODEGEARC__, BOOST_TESTED_AT(0x0613))
+        struct dummy { unordered_set<T,H,P,A> x; };
+#endif
+        return !m1.table_.equals(m2.table_);
+    }
+
+    template <class T, class H, class P, class A>
+    inline void swap(
+            unordered_set<T,H,P,A> &m1,
+            unordered_set<T,H,P,A> &m2)
+    {
+#if BOOST_WORKAROUND(__CODEGEARC__, BOOST_TESTED_AT(0x0613))
+        struct dummy { unordered_set<T,H,P,A> x; };
+#endif
+        m1.swap(m2);
+    }
+
+////////////////////////////////////////////////////////////////////////////////
+
+    template <class T, class H, class P, class A>
+    unordered_multiset<T,H,P,A>::unordered_multiset(
+            size_type n, const hasher &hf, const key_equal &eql,
+            const allocator_type &a)
+      : table_(n, hf, eql, a)
+    {
+    }
+
+    template <class T, class H, class P, class A>
+    unordered_multiset<T,H,P,A>::unordered_multiset(allocator_type const& a)
+      : table_(ndnboost::unordered::detail::default_bucket_count,
+            hasher(), key_equal(), a)
+    {
+    }
+
+    template <class T, class H, class P, class A>
+    unordered_multiset<T,H,P,A>::unordered_multiset(
+            unordered_multiset const& other, allocator_type const& a)
+      : table_(other.table_, a)
+    {
+    }
+
+    template <class T, class H, class P, class A>
+    template <class InputIt>
+    unordered_multiset<T,H,P,A>::unordered_multiset(InputIt f, InputIt l)
+      : table_(ndnboost::unordered::detail::initial_size(f, l),
+        hasher(), key_equal(), allocator_type())
+    {
+        table_.insert_range(f, l);
+    }
+
+    template <class T, class H, class P, class A>
+    template <class InputIt>
+    unordered_multiset<T,H,P,A>::unordered_multiset(
+            InputIt f, InputIt l,
+            size_type n,
+            const hasher &hf,
+            const key_equal &eql)
+      : table_(ndnboost::unordered::detail::initial_size(f, l, n),
+            hf, eql, allocator_type())
+    {
+        table_.insert_range(f, l);
+    }
+    
+    template <class T, class H, class P, class A>
+    template <class InputIt>
+    unordered_multiset<T,H,P,A>::unordered_multiset(
+            InputIt f, InputIt l,
+            size_type n,
+            const hasher &hf,
+            const key_equal &eql,
+            const allocator_type &a)
+      : table_(ndnboost::unordered::detail::initial_size(f, l, n), hf, eql, a)
+    {
+        table_.insert_range(f, l);
+    }
+    
+    template <class T, class H, class P, class A>
+    unordered_multiset<T,H,P,A>::~unordered_multiset() {}
+
+    template <class T, class H, class P, class A>
+    unordered_multiset<T,H,P,A>::unordered_multiset(
+            unordered_multiset const& other)
+      : table_(other.table_)
+    {
+    }
+
+#if !defined(BOOST_NO_CXX11_RVALUE_REFERENCES)
+
+    template <class T, class H, class P, class A>
+    unordered_multiset<T,H,P,A>::unordered_multiset(
+            unordered_multiset&& other, allocator_type const& a)
+      : table_(other.table_, a, ndnboost::unordered::detail::move_tag())
+    {
+    }
+
+#endif
+
+#if !defined(BOOST_NO_CXX11_HDR_INITIALIZER_LIST)
+
+    template <class T, class H, class P, class A>
+    unordered_multiset<T,H,P,A>::unordered_multiset(
+            std::initializer_list<value_type> list, size_type n,
+            const hasher &hf, const key_equal &eql, const allocator_type &a)
+      : table_(
+            ndnboost::unordered::detail::initial_size(
+                list.begin(), list.end(), n),
+            hf, eql, a)
+    {
+        table_.insert_range(list.begin(), list.end());
+    }
+
+    template <class T, class H, class P, class A>
+    unordered_multiset<T,H,P,A>& unordered_multiset<T,H,P,A>::operator=(
+            std::initializer_list<value_type> list)
+    {
+        table_.clear();
+        table_.insert_range(list.begin(), list.end());
+        return *this;
+    }
+
+#endif
+
+    // size and capacity
+
+    template <class T, class H, class P, class A>
+    std::size_t unordered_multiset<T,H,P,A>::max_size() const BOOST_NOEXCEPT
+    {
+        return table_.max_size();
+    }
+
+    // modifiers
+
+    template <class T, class H, class P, class A>
+    template <class InputIt>
+    void unordered_multiset<T,H,P,A>::insert(InputIt first, InputIt last)
+    {
+        table_.insert_range(first, last);
+    }
+
+#if !defined(BOOST_NO_CXX11_HDR_INITIALIZER_LIST)
+    template <class T, class H, class P, class A>
+    void unordered_multiset<T,H,P,A>::insert(
+            std::initializer_list<value_type> list)
+    {
+        table_.insert_range(list.begin(), list.end());
+    }
+#endif
+
+    template <class T, class H, class P, class A>
+    typename unordered_multiset<T,H,P,A>::iterator
+        unordered_multiset<T,H,P,A>::erase(const_iterator position)
+    {
+        return table_.erase(position);
+    }
+
+    template <class T, class H, class P, class A>
+    typename unordered_multiset<T,H,P,A>::size_type
+        unordered_multiset<T,H,P,A>::erase(const key_type& k)
+    {
+        return table_.erase_key(k);
+    }
+
+    template <class T, class H, class P, class A>
+    typename unordered_multiset<T,H,P,A>::iterator
+        unordered_multiset<T,H,P,A>::erase(
+                const_iterator first, const_iterator last)
+    {
+        return table_.erase_range(first, last);
+    }
+
+    template <class T, class H, class P, class A>
+    void unordered_multiset<T,H,P,A>::clear()
+    {
+        table_.clear();
+    }
+
+    template <class T, class H, class P, class A>
+    void unordered_multiset<T,H,P,A>::swap(unordered_multiset& other)
+    {
+        table_.swap(other.table_);
+    }
+
+    // observers
+
+    template <class T, class H, class P, class A>
+    typename unordered_multiset<T,H,P,A>::hasher
+        unordered_multiset<T,H,P,A>::hash_function() const
+    {
+        return table_.hash_function();
+    }
+
+    template <class T, class H, class P, class A>
+    typename unordered_multiset<T,H,P,A>::key_equal
+        unordered_multiset<T,H,P,A>::key_eq() const
+    {
+        return table_.key_eq();
+    }
+
+    // lookup
+
+    template <class T, class H, class P, class A>
+    typename unordered_multiset<T,H,P,A>::const_iterator
+        unordered_multiset<T,H,P,A>::find(const key_type& k) const
+    {
+        return table_.find_node(k);
+    }
+
+    template <class T, class H, class P, class A>
+    template <class CompatibleKey, class CompatibleHash,
+        class CompatiblePredicate>
+    typename unordered_multiset<T,H,P,A>::const_iterator
+        unordered_multiset<T,H,P,A>::find(
+            CompatibleKey const& k,
+            CompatibleHash const& hash,
+            CompatiblePredicate const& eq) const
+    {
+        return table_.generic_find_node(k, hash, eq);
+    }
+
+    template <class T, class H, class P, class A>
+    typename unordered_multiset<T,H,P,A>::size_type
+        unordered_multiset<T,H,P,A>::count(const key_type& k) const
+    {
+        return table_.count(k);
+    }
+
+    template <class T, class H, class P, class A>
+    std::pair<
+            typename unordered_multiset<T,H,P,A>::const_iterator,
+            typename unordered_multiset<T,H,P,A>::const_iterator>
+        unordered_multiset<T,H,P,A>::equal_range(const key_type& k) const
+    {
+        return table_.equal_range(k);
+    }
+
+    template <class T, class H, class P, class A>
+    typename unordered_multiset<T,H,P,A>::size_type
+        unordered_multiset<T,H,P,A>::bucket_size(size_type n) const
+    {
+        return table_.bucket_size(n);
+    }
+
+    // hash policy
+
+    template <class T, class H, class P, class A>
+    float unordered_multiset<T,H,P,A>::load_factor() const BOOST_NOEXCEPT
+    {
+        return table_.load_factor();
+    }
+
+    template <class T, class H, class P, class A>
+    void unordered_multiset<T,H,P,A>::max_load_factor(float m) BOOST_NOEXCEPT
+    {
+        table_.max_load_factor(m);
+    }
+
+    template <class T, class H, class P, class A>
+    void unordered_multiset<T,H,P,A>::rehash(size_type n)
+    {
+        table_.rehash(n);
+    }
+
+    template <class T, class H, class P, class A>
+    void unordered_multiset<T,H,P,A>::reserve(size_type n)
+    {
+        table_.reserve(n);
+    }
+
+    template <class T, class H, class P, class A>
+    inline bool operator==(
+            unordered_multiset<T,H,P,A> const& m1,
+            unordered_multiset<T,H,P,A> const& m2)
+    {
+#if BOOST_WORKAROUND(__CODEGEARC__, BOOST_TESTED_AT(0x0613))
+        struct dummy { unordered_multiset<T,H,P,A> x; };
+#endif
+        return m1.table_.equals(m2.table_);
+    }
+
+    template <class T, class H, class P, class A>
+    inline bool operator!=(
+            unordered_multiset<T,H,P,A> const& m1,
+            unordered_multiset<T,H,P,A> const& m2)
+    {
+#if BOOST_WORKAROUND(__CODEGEARC__, BOOST_TESTED_AT(0x0613))
+        struct dummy { unordered_multiset<T,H,P,A> x; };
+#endif
+        return !m1.table_.equals(m2.table_);
+    }
+
+    template <class T, class H, class P, class A>
+    inline void swap(
+            unordered_multiset<T,H,P,A> &m1,
+            unordered_multiset<T,H,P,A> &m2)
+    {
+#if BOOST_WORKAROUND(__CODEGEARC__, BOOST_TESTED_AT(0x0613))
+        struct dummy { unordered_multiset<T,H,P,A> x; };
+#endif
+        m1.swap(m2);
+    }
+} // namespace unordered
+} // namespace ndnboost
+
+#if defined(BOOST_MSVC)
+#pragma warning(pop)
+#endif
+
+#endif // BOOST_UNORDERED_UNORDERED_SET_HPP_INCLUDED