1 files changed, 264 insertions, 135 deletions
diff --git a/3rdParty/Boost/src/boost/unordered/detail/buckets.hpp b/3rdParty/Boost/src/boost/unordered/detail/buckets.hpp
index def5c7c..fd038b7 100644
--- a/3rdParty/Boost/src/boost/unordered/detail/buckets.hpp
+++ b/3rdParty/Boost/src/boost/unordered/detail/buckets.hpp
@@ -7,14 +7,17 @@
 #ifndef BOOST_UNORDERED_DETAIL_MANAGER_HPP_INCLUDED
 #define BOOST_UNORDERED_DETAIL_MANAGER_HPP_INCLUDED
 
-#if defined(_MSC_VER) && (_MSC_VER >= 1020)
-# pragma once
+#include <boost/config.hpp>
+#if defined(BOOST_HAS_PRAGMA_ONCE)
+#pragma once
 #endif
 
 #include <boost/unordered/detail/util.hpp>
 #include <boost/unordered/detail/allocate.hpp>
 #include <boost/type_traits/aligned_storage.hpp>
 #include <boost/type_traits/alignment_of.hpp>
+#include <boost/type_traits/is_nothrow_move_constructible.hpp>
+#include <boost/type_traits/is_nothrow_move_assignable.hpp>
 #include <boost/swap.hpp>
 #include <boost/assert.hpp>
 #include <boost/limits.hpp>
@@ -30,6 +33,10 @@ namespace boost { namespace unordered { namespace detail {
 
 }}}
 
+// The 'iterator_detail' namespace was a misguided attempt at avoiding ADL
+// in the detail namespace. It didn't work because the template parameters
+// were in detail. I'm not changing it at the moment to be safe. I might
+// do in the future if I change the iterator types.
 namespace boost { namespace unordered { namespace iterator_detail {
 
     ////////////////////////////////////////////////////////////////////////////
@@ -37,49 +44,50 @@ namespace boost { namespace unordered { namespace iterator_detail {
     //
     // all no throw
 
-    template <typename NodePointer, typename Value> struct iterator;
-    template <typename ConstNodePointer, typename NodePointer,
-        typename Value> struct c_iterator;
-    template <typename NodePointer, typename Value, typename Policy>
-        struct l_iterator;
-    template <typename ConstNodePointer, typename NodePointer,
-        typename Value, typename Policy> struct cl_iterator;
+    template <typename Node> struct iterator;
+    template <typename Node, typename ConstNodePointer> struct c_iterator;
+    template <typename Node, typename Policy> struct l_iterator;
+    template <typename Node, typename ConstNodePointer, typename Policy>
+        struct cl_iterator;
 
     // Local Iterators
     //
     // all no throw
 
-    template <typename NodePointer, typename Value, typename Policy>
+    template <typename Node, typename Policy>
     struct l_iterator
         : public boost::iterator<
-            std::forward_iterator_tag, Value, std::ptrdiff_t,
-            NodePointer, Value&>
+            std::forward_iterator_tag,
+            typename Node::value_type,
+            std::ptrdiff_t,
+            typename Node::node_pointer,
+            typename Node::value_type&>
     {
 #if !defined(BOOST_NO_MEMBER_TEMPLATE_FRIENDS)
-        template <typename ConstNodePointer, typename NodePointer2,
-                typename Value2, typename Policy2>
+        template <typename Node2, typename ConstNodePointer, typename Policy2>
         friend struct boost::unordered::iterator_detail::cl_iterator;
     private:
 #endif
-        typedef NodePointer node_pointer;
-        typedef boost::unordered::iterator_detail::iterator<NodePointer, Value>
-            iterator;
+        typedef typename Node::node_pointer node_pointer;
+        typedef boost::unordered::iterator_detail::iterator<Node> iterator;
         node_pointer ptr_;
         std::size_t bucket_;
         std::size_t bucket_count_;
 
     public:
 
-        l_iterator() : ptr_() {}
+        typedef typename Node::value_type value_type;
 
-        l_iterator(iterator x, std::size_t b, std::size_t c)
+        l_iterator() BOOST_NOEXCEPT : ptr_() {}
+
+        l_iterator(iterator x, std::size_t b, std::size_t c) BOOST_NOEXCEPT
             : ptr_(x.node_), bucket_(b), bucket_count_(c) {}
 
-        Value& operator*() const {
+        value_type& operator*() const {
             return ptr_->value();
         }
 
-        Value* operator->() const {
+        value_type* operator->() const {
             return ptr_->value_ptr();
         }
 
@@ -97,51 +105,53 @@ namespace boost { namespace unordered { namespace iterator_detail {
             return tmp;
         }
 
-        bool operator==(l_iterator x) const {
+        bool operator==(l_iterator x) const BOOST_NOEXCEPT {
             return ptr_ == x.ptr_;
         }
 
-        bool operator!=(l_iterator x) const {
+        bool operator!=(l_iterator x) const BOOST_NOEXCEPT {
             return ptr_ != x.ptr_;
         }
     };
 
-    template <typename ConstNodePointer, typename NodePointer, typename Value,
-             typename Policy>
+    template <typename Node, typename ConstNodePointer, typename Policy>
     struct cl_iterator
         : public boost::iterator<
-            std::forward_iterator_tag, Value, std::ptrdiff_t,
-            ConstNodePointer, Value const&>
+            std::forward_iterator_tag,
+            typename Node::value_type,
+            std::ptrdiff_t,
+            ConstNodePointer,
+            typename Node::value_type const&>
     {
         friend struct boost::unordered::iterator_detail::l_iterator
-            <NodePointer, Value, Policy>;
+            <Node, Policy>;
     private:
 
-        typedef NodePointer node_pointer;
-        typedef boost::unordered::iterator_detail::iterator<NodePointer, Value>
-            iterator;
+        typedef typename Node::node_pointer node_pointer;
+        typedef boost::unordered::iterator_detail::iterator<Node> iterator;
         node_pointer ptr_;
         std::size_t bucket_;
         std::size_t bucket_count_;
 
     public:
 
-        cl_iterator() : ptr_() {}
+        typedef typename Node::value_type value_type;
+
+        cl_iterator() BOOST_NOEXCEPT : ptr_() {}
 
-        cl_iterator(iterator x, std::size_t b, std::size_t c) :
+        cl_iterator(iterator x, std::size_t b, std::size_t c) BOOST_NOEXCEPT :
             ptr_(x.node_), bucket_(b), bucket_count_(c) {}
 
         cl_iterator(boost::unordered::iterator_detail::l_iterator<
-                NodePointer, Value, Policy> const& x) :
+                Node, Policy> const& x) BOOST_NOEXCEPT :
             ptr_(x.ptr_), bucket_(x.bucket_), bucket_count_(x.bucket_count_)
         {}
 
-        Value const&
-            operator*() const {
+        value_type const& operator*() const {
             return ptr_->value();
         }
 
-        Value const* operator->() const {
+        value_type const* operator->() const {
             return ptr_->value_ptr();
         }
 
@@ -159,27 +169,34 @@ namespace boost { namespace unordered { namespace iterator_detail {
             return tmp;
         }
 
-        friend bool operator==(cl_iterator const& x, cl_iterator const& y) {
+        friend bool operator==(cl_iterator const& x, cl_iterator const& y)
+            BOOST_NOEXCEPT
+        {
             return x.ptr_ == y.ptr_;
         }
 
-        friend bool operator!=(cl_iterator const& x, cl_iterator const& y) {
+        friend bool operator!=(cl_iterator const& x, cl_iterator const& y)
+            BOOST_NOEXCEPT
+        {
             return x.ptr_ != y.ptr_;
         }
     };
 
-    template <typename NodePointer, typename Value>
+    template <typename Node>
     struct iterator
         : public boost::iterator<
-            std::forward_iterator_tag, Value, std::ptrdiff_t,
-            NodePointer, Value&>
+            std::forward_iterator_tag,
+            typename Node::value_type,
+            std::ptrdiff_t,
+            typename Node::node_pointer,
+            typename Node::value_type&>
     {
 #if !defined(BOOST_NO_MEMBER_TEMPLATE_FRIENDS)
-        template <typename, typename, typename>
+        template <typename, typename>
         friend struct boost::unordered::iterator_detail::c_iterator;
-        template <typename, typename, typename>
+        template <typename, typename>
         friend struct boost::unordered::iterator_detail::l_iterator;
-        template <typename, typename, typename, typename>
+        template <typename, typename, typename>
         friend struct boost::unordered::iterator_detail::cl_iterator;
         template <typename>
         friend struct boost::unordered::detail::table;
@@ -189,20 +206,23 @@ namespace boost { namespace unordered { namespace iterator_detail {
         friend struct boost::unordered::detail::grouped_table_impl;
     private:
 #endif
-        typedef NodePointer node_pointer;
+        typedef typename Node::node_pointer node_pointer;
         node_pointer node_;
 
     public:
 
-        iterator() : node_() {}
+        typedef typename Node::value_type value_type;
+
+        iterator() BOOST_NOEXCEPT : node_() {}
 
-        explicit iterator(node_pointer const& x) : node_(x) {}
+        explicit iterator(typename Node::link_pointer x) BOOST_NOEXCEPT :
+            node_(static_cast<node_pointer>(x)) {}
 
-        Value& operator*() const {
+        value_type& operator*() const {
             return node_->value();
         }
 
-        Value* operator->() const {
+        value_type* operator->() const {
             return &node_->value();
         }
 
@@ -217,23 +237,25 @@ namespace boost { namespace unordered { namespace iterator_detail {
             return tmp;
         }
 
-        bool operator==(iterator const& x) const {
+        bool operator==(iterator const& x) const BOOST_NOEXCEPT {
             return node_ == x.node_;
         }
 
-        bool operator!=(iterator const& x) const {
+        bool operator!=(iterator const& x) const BOOST_NOEXCEPT {
             return node_ != x.node_;
         }
     };
 
-    template <typename ConstNodePointer, typename NodePointer, typename Value>
+    template <typename Node, typename ConstNodePointer>
     struct c_iterator
         : public boost::iterator<
-            std::forward_iterator_tag, Value, std::ptrdiff_t,
-            ConstNodePointer, Value const&>
+            std::forward_iterator_tag,
+            typename Node::value_type,
+            std::ptrdiff_t,
+            ConstNodePointer,
+            typename Node::value_type const&>
     {
-        friend struct boost::unordered::iterator_detail::iterator<
-                NodePointer, Value>;
+        friend struct boost::unordered::iterator_detail::iterator<Node>;
 
 #if !defined(BOOST_NO_MEMBER_TEMPLATE_FRIENDS)
         template <typename>
@@ -245,26 +267,26 @@ namespace boost { namespace unordered { namespace iterator_detail {
 
     private:
 #endif
-
-        typedef NodePointer node_pointer;
-        typedef boost::unordered::iterator_detail::iterator<NodePointer, Value>
-            iterator;
+        typedef typename Node::node_pointer node_pointer;
+        typedef boost::unordered::iterator_detail::iterator<Node> iterator;
         node_pointer node_;
 
     public:
 
-        c_iterator() : node_() {}
+        typedef typename Node::value_type value_type;
 
-        explicit c_iterator(node_pointer const& x) : node_(x) {}
+        c_iterator() BOOST_NOEXCEPT : node_() {}
 
-        c_iterator(boost::unordered::iterator_detail::iterator<
-                NodePointer, Value> const& x) : node_(x.node_) {}
+        explicit c_iterator(typename Node::link_pointer x) BOOST_NOEXCEPT :
+            node_(static_cast<node_pointer>(x)) {}
 
-        Value const& operator*() const {
+        c_iterator(iterator const& x) BOOST_NOEXCEPT : node_(x.node_) {}
+
+        value_type const& operator*() const {
             return node_->value();
         }
 
-        Value const* operator->() const {
+        value_type const* operator->() const {
             return &node_->value();
         }
 
@@ -279,11 +301,15 @@ namespace boost { namespace unordered { namespace iterator_detail {
             return tmp;
         }
 
-        friend bool operator==(c_iterator const& x, c_iterator const& y) {
+        friend bool operator==(c_iterator const& x, c_iterator const& y)
+            BOOST_NOEXCEPT
+        {
             return x.node_ == y.node_;
         }
 
-        friend bool operator!=(c_iterator const& x, c_iterator const& y) {
+        friend bool operator!=(c_iterator const& x, c_iterator const& y)
+            BOOST_NOEXCEPT
+        {
             return x.node_ != y.node_;
         }
     };
@@ -310,9 +336,6 @@ namespace boost { namespace unordered { namespace detail {
     protected:
 
         node_allocator& alloc_;
-
-    private:
-
         node_pointer node_;
         bool node_constructed_;
         bool value_constructed_;
@@ -335,7 +358,7 @@ namespace boost { namespace unordered { namespace detail {
         void construct_with_value(BOOST_UNORDERED_EMPLACE_ARGS)
         {
             construct();
-            boost::unordered::detail::construct_value_impl(
+            boost::unordered::detail::func::construct_value_impl(
                 alloc_, node_->value_ptr(), BOOST_UNORDERED_EMPLACE_FORWARD);
             value_constructed_ = true;
         }
@@ -344,7 +367,7 @@ namespace boost { namespace unordered { namespace detail {
         void construct_with_value2(BOOST_FWD_REF(A0) a0)
         {
             construct();
-            boost::unordered::detail::construct_value_impl(
+            boost::unordered::detail::func::construct_value_impl(
                 alloc_, node_->value_ptr(),
                 BOOST_UNORDERED_EMPLACE_ARGS1(boost::forward<A0>(a0)));
             value_constructed_ = true;
@@ -374,12 +397,12 @@ namespace boost { namespace unordered { namespace detail {
     {
         if (node_) {
             if (value_constructed_) {
-                boost::unordered::detail::destroy_value_impl(alloc_,
+                boost::unordered::detail::func::destroy_value_impl(alloc_,
                     node_->value_ptr());
             }
 
             if (node_constructed_) {
-                node_allocator_traits::destroy(alloc_,
+                boost::unordered::detail::func::destroy(
                     boost::addressof(*node_));
             }
 
@@ -396,9 +419,8 @@ namespace boost { namespace unordered { namespace detail {
 
             node_ = node_allocator_traits::allocate(alloc_, 1);
 
-            node_allocator_traits::construct(alloc_,
-                boost::addressof(*node_), node());
-            node_->init(static_cast<typename node::link_pointer>(node_));
+            new ((void*) boost::addressof(*node_)) node();
+            node_->init(node_);
             node_constructed_ = true;
         }
         else {
@@ -406,7 +428,7 @@ namespace boost { namespace unordered { namespace detail {
 
             if (value_constructed_)
             {
-                boost::unordered::detail::destroy_value_impl(alloc_,
+                boost::unordered::detail::func::destroy_value_impl(alloc_,
                     node_->value_ptr());
                 value_constructed_ = false;
             }
@@ -432,8 +454,7 @@ namespace boost { namespace unordered { namespace detail {
         typedef typename node_allocator_traits::pointer node_pointer;
         typedef typename node::value_type value_type;
         typedef typename node::link_pointer link_pointer;
-        typedef boost::unordered::iterator_detail::
-            iterator<node_pointer, value_type> iterator;
+        typedef boost::unordered::iterator_detail::iterator<node> iterator;
 
         node_pointer nodes_;
 
@@ -445,7 +466,7 @@ namespace boost { namespace unordered { namespace detail {
             nodes_()
         {
             if (b.size_) {
-                typename Table::previous_pointer prev = b.get_previous_start();
+                typename Table::link_pointer prev = b.get_previous_start();
                 nodes_ = static_cast<node_pointer>(prev->next_);
                 prev->next_ = link_pointer();
                 b.size_ = 0;
@@ -454,60 +475,61 @@ namespace boost { namespace unordered { namespace detail {
 
         ~node_holder();
 
+        void node_for_assignment()
+        {
+            if (!this->node_ && nodes_) {
+                this->node_ = nodes_;
+                nodes_ = static_cast<node_pointer>(nodes_->next_);
+                this->node_->init(this->node_);
+                this->node_->next_ = link_pointer();
+
+                this->node_constructed_ = true;
+                this->value_constructed_ = true;
+            }
+        }
+
         template <typename T>
         inline void assign_impl(T const& v) {
-            nodes_->value() = v;
+            if (this->node_ && this->value_constructed_) {
+                this->node_->value() = v;
+            }
+            else {
+                this->construct_with_value2(v);
+            }
         }
 
         template <typename T1, typename T2>
         inline void assign_impl(std::pair<T1 const, T2> const& v) {
-            const_cast<T1&>(nodes_->value().first) = v.first;
-            nodes_->value().second = v.second;
+            this->construct_with_value2(v);
         }
 
         template <typename T>
         inline void move_assign_impl(T& v) {
-            nodes_->value() = boost::move(v);
+            if (this->node_ && this->value_constructed_) {
+                this->node_->value() = boost::move(v);
+            }
+            else {
+                this->construct_with_value2(boost::move(v));
+            }
         }
 
         template <typename T1, typename T2>
         inline void move_assign_impl(std::pair<T1 const, T2>& v) {
-            // TODO: Move key as well?
-            const_cast<T1&>(nodes_->value().first) =
-                boost::move(const_cast<T1&>(v.first));
-            nodes_->value().second = boost::move(v.second);
+            this->construct_with_value2(boost::move(v));
         }
 
         node_pointer copy_of(value_type const& v)
         {
-            if (nodes_) {
-                assign_impl(v);
-                node_pointer p = nodes_;
-                nodes_ = static_cast<node_pointer>(p->next_);
-                p->init(static_cast<typename node::link_pointer>(p));
-                p->next_ = link_pointer();
-                return p;
-            }
-            else {
-                this->construct_with_value2(v);
-                return base::release();
-            }
+            node_for_assignment();
+            assign_impl(v);
+            return base::release();
         }
 
         node_pointer move_copy_of(value_type& v)
         {
-            if (nodes_) {
-                move_assign_impl(v);
-                node_pointer p = nodes_;
-                nodes_ = static_cast<node_pointer>(p->next_);
-                p->init(static_cast<typename node::link_pointer>(p));
-                p->next_ = link_pointer();
-                return p;
-            }
-            else {
-                this->construct_with_value2(boost::move(v));
-                return base::release();
-            }
+            node_for_assignment();
+            move_assign_impl(v);
+            return base::release();
         }
 
         iterator begin() const
@@ -523,9 +545,9 @@ namespace boost { namespace unordered { namespace detail {
             node_pointer p = nodes_;
             nodes_ = static_cast<node_pointer>(p->next_);
 
-            boost::unordered::detail::destroy_value_impl(this->alloc_,
+            boost::unordered::detail::func::destroy_value_impl(this->alloc_,
                 p->value_ptr());
-            node_allocator_traits::destroy(this->alloc_, boost::addressof(*p));
+            boost::unordered::detail::func::destroy(boost::addressof(*p));
             node_allocator_traits::deallocate(this->alloc_, p, 1);
         }
     }
@@ -537,12 +559,12 @@ namespace boost { namespace unordered { namespace detail {
     template <typename NodePointer>
     struct bucket
     {
-        typedef NodePointer previous_pointer;
-        previous_pointer next_;
+        typedef NodePointer link_pointer;
+        link_pointer next_;
 
         bucket() : next_() {}
 
-        previous_pointer first_from_start()
+        link_pointer first_from_start()
         {
             return next_;
         }
@@ -552,12 +574,12 @@ namespace boost { namespace unordered { namespace detail {
 
     struct ptr_bucket
     {
-        typedef ptr_bucket* previous_pointer;
-        previous_pointer next_;
+        typedef ptr_bucket* link_pointer;
+        link_pointer next_;
 
         ptr_bucket() : next_(0) {}
 
-        previous_pointer first_from_start()
+        link_pointer first_from_start()
         {
             return this;
         }
@@ -568,8 +590,6 @@ namespace boost { namespace unordered { namespace detail {
     ///////////////////////////////////////////////////////////////////
     //
     // Hash Policy
-    //
-    // Don't really want table to derive from this, but will for now.
 
     template <typename SizeT>
     struct prime_policy
@@ -645,11 +665,51 @@ namespace boost { namespace unordered { namespace detail {
         typedef mix64_policy<std::size_t> type;
     };
 
+    template <typename T>
     struct pick_policy :
         pick_policy_impl<
             std::numeric_limits<std::size_t>::digits,
             std::numeric_limits<std::size_t>::radix> {};
 
+    // While the mix policy is generally faster, the prime policy is a lot
+    // faster when a large number consecutive integers are used, because
+    // there are no collisions. Since that is probably quite common, use
+    // prime policy for integeral types. But not the smaller ones, as they
+    // don't have enough unique values for this to be an issue.
+
+    template <>
+    struct pick_policy<int> {
+        typedef prime_policy<std::size_t> type;
+    };
+
+    template <>
+    struct pick_policy<unsigned int> {
+        typedef prime_policy<std::size_t> type;
+    };
+
+    template <>
+    struct pick_policy<long> {
+        typedef prime_policy<std::size_t> type;
+    };
+
+    template <>
+    struct pick_policy<unsigned long> {
+        typedef prime_policy<std::size_t> type;
+    };
+
+    // TODO: Maybe not if std::size_t is smaller than long long.
+#if !defined(BOOST_NO_LONG_LONG)
+    template <>
+    struct pick_policy<long long> {
+        typedef prime_policy<std::size_t> type;
+    };
+
+    template <>
+    struct pick_policy<unsigned long long> {
+        typedef prime_policy<std::size_t> type;
+    };
+#endif
+
     ////////////////////////////////////////////////////////////////////////////
     // Functions
 
@@ -664,12 +724,23 @@ namespace boost { namespace unordered { namespace detail {
     // atomically assigns the new function objects in a strongly
     // exception safe manner.
 
-    template <class H, class P> class set_hash_functions;
+    template <class H, class P, bool NoThrowMoveAssign>
+    class set_hash_functions;
 
     template <class H, class P>
     class functions
     {
-        friend class boost::unordered::detail::set_hash_functions<H, P>;
+    public:
+        static const bool nothrow_move_assignable =
+                boost::is_nothrow_move_assignable<H>::value &&
+                boost::is_nothrow_move_assignable<P>::value;
+        static const bool nothrow_move_constructible =
+                boost::is_nothrow_move_constructible<H>::value &&
+                boost::is_nothrow_move_constructible<P>::value;
+
+    private:
+        friend class boost::unordered::detail::set_hash_functions<H, P,
+               nothrow_move_assignable>;
         functions& operator=(functions const&);
 
         typedef compressed<H, P> function_pair;
@@ -686,23 +757,40 @@ namespace boost { namespace unordered { namespace detail {
                 static_cast<void const*>(&funcs_[current_]));
         }
 
+        function_pair& current() {
+            return *static_cast<function_pair*>(
+                static_cast<void*>(&funcs_[current_]));
+        }
+
         void construct(bool which, H const& hf, P const& eq)
         {
             new((void*) &funcs_[which]) function_pair(hf, eq);
         }
 
-        void construct(bool which, function_pair const& f)
+        void construct(bool which, function_pair const& f,
+                boost::unordered::detail::false_type =
+                    boost::unordered::detail::false_type())
         {
             new((void*) &funcs_[which]) function_pair(f);
         }
         
+        void construct(bool which, function_pair& f,
+                boost::unordered::detail::true_type)
+        {
+            new((void*) &funcs_[which]) function_pair(f,
+                boost::unordered::detail::move_tag());
+        }
+
         void destroy(bool which)
         {
-            boost::unordered::detail::destroy((function_pair*)(&funcs_[which]));
+            boost::unordered::detail::func::destroy((function_pair*)(&funcs_[which]));
         }
         
     public:
 
+        typedef boost::unordered::detail::set_hash_functions<H, P,
+                nothrow_move_assignable> set_hash_functions;
+
         functions(H const& hf, P const& eq)
             : current_(false)
         {
@@ -715,6 +803,14 @@ namespace boost { namespace unordered { namespace detail {
             construct(current_, bf.current());
         }
 
+        functions(functions& bf, boost::unordered::detail::move_tag)
+            : current_(false)
+        {
+            construct(current_, bf.current(),
+                boost::unordered::detail::integral_constant<bool,
+                    nothrow_move_constructible>());
+        }
+
         ~functions() {
             this->destroy(current_);
         }
@@ -727,26 +823,28 @@ namespace boost { namespace unordered { namespace detail {
             return current().second();
         }
     };
-    
+
     template <class H, class P>
-    class set_hash_functions
+    class set_hash_functions<H, P, false>
     {
         set_hash_functions(set_hash_functions const&);
         set_hash_functions& operator=(set_hash_functions const&);
+
+        typedef functions<H, P> functions_type;
     
-        functions<H,P>& functions_;
+        functions_type& functions_;
         bool tmp_functions_;
 
     public:
 
-        set_hash_functions(functions<H,P>& f, H const& h, P const& p)
+        set_hash_functions(functions_type& f, H const& h, P const& p)
           : functions_(f),
             tmp_functions_(!f.current_)
         {
             f.construct(tmp_functions_, h, p);
         }
 
-        set_hash_functions(functions<H,P>& f, functions<H,P> const& other)
+        set_hash_functions(functions_type& f, functions_type const& other)
           : functions_(f),
             tmp_functions_(!f.current_)
         {
@@ -765,11 +863,42 @@ namespace boost { namespace unordered { namespace detail {
         }
     };
 
+    template <class H, class P>
+    class set_hash_functions<H, P, true>
+    {
+        set_hash_functions(set_hash_functions const&);
+        set_hash_functions& operator=(set_hash_functions const&);
+
+        typedef functions<H, P> functions_type;
+
+        functions_type& functions_;
+        H hash_;
+        P pred_;
+    
+    public:
+
+        set_hash_functions(functions_type& f, H const& h, P const& p) :
+            functions_(f),
+            hash_(h),
+            pred_(p) {}
+
+        set_hash_functions(functions_type& f, functions_type const& other) :
+            functions_(f),
+            hash_(other.hash_function()),
+            pred_(other.key_eq()) {}
+
+        void commit()
+        {
+            functions_.current().first() = boost::move(hash_);
+            functions_.current().second() = boost::move(pred_);
+        }
+    };
+    
     ////////////////////////////////////////////////////////////////////////////
     // rvalue parameters when type can't be a BOOST_RV_REF(T) parameter
     // e.g. for int
 
-#if !defined(BOOST_NO_RVALUE_REFERENCES)
+#if !defined(BOOST_NO_CXX11_RVALUE_REFERENCES)
 #   define BOOST_UNORDERED_RV_REF(T) BOOST_RV_REF(T)
 #else
     struct please_ignore_this_overload {