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Edit File: allocator_traits.hpp

//////////////////////////////////////////////////////////////////////////////
//
// (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 2011-2013. 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/container for documentation.
//
//////////////////////////////////////////////////////////////////////////////
#ifndef BOOST_CONTAINER_ALLOCATOR_ALLOCATOR_TRAITS_HPP
#define BOOST_CONTAINER_ALLOCATOR_ALLOCATOR_TRAITS_HPP

#ifndef BOOST_CONFIG_HPP
# include <boost/config.hpp>
#endif

#if defined(BOOST_HAS_PRAGMA_ONCE)
#  pragma once
#endif

#include <boost/container/detail/config_begin.hpp>
#include <boost/container/detail/workaround.hpp>

// container
#include <boost/container/container_fwd.hpp>
#include <boost/container/detail/mpl.hpp>
#include <boost/container/detail/type_traits.hpp> //is_empty
#include <boost/container/detail/placement_new.hpp>
#ifndef BOOST_CONTAINER_DETAIL_STD_FWD_HPP
#include <boost/container/detail/std_fwd.hpp>
#endif
// intrusive
#include <boost/intrusive/pointer_traits.hpp>
#include <boost/intrusive/detail/mpl.hpp>
// move
#include <boost/move/utility_core.hpp>
// move/detail
#if defined(BOOST_NO_CXX11_VARIADIC_TEMPLATES)
#include <boost/move/detail/fwd_macros.hpp>
#endif
// other boost
#include <boost/static_assert.hpp>

#ifndef BOOST_CONTAINER_DOXYGEN_INVOKED

#define BOOST_INTRUSIVE_HAS_MEMBER_FUNCTION_CALLABLE_WITH_FUNCNAME allocate
#define BOOST_INTRUSIVE_HAS_MEMBER_FUNCTION_CALLABLE_WITH_NS_BEG namespace boost { namespace container { namespace dtl {
#define BOOST_INTRUSIVE_HAS_MEMBER_FUNCTION_CALLABLE_WITH_NS_END }}}
#define BOOST_INTRUSIVE_HAS_MEMBER_FUNCTION_CALLABLE_WITH_MIN 2
#define BOOST_INTRUSIVE_HAS_MEMBER_FUNCTION_CALLABLE_WITH_MAX 2
#include <boost/intrusive/detail/has_member_function_callable_with.hpp>

#define BOOST_INTRUSIVE_HAS_MEMBER_FUNCTION_CALLABLE_WITH_FUNCNAME destroy
#define BOOST_INTRUSIVE_HAS_MEMBER_FUNCTION_CALLABLE_WITH_NS_BEG namespace boost { namespace container { namespace dtl {
#define BOOST_INTRUSIVE_HAS_MEMBER_FUNCTION_CALLABLE_WITH_NS_END }}}
#define BOOST_INTRUSIVE_HAS_MEMBER_FUNCTION_CALLABLE_WITH_MIN 1
#define BOOST_INTRUSIVE_HAS_MEMBER_FUNCTION_CALLABLE_WITH_MAX 1
#include <boost/intrusive/detail/has_member_function_callable_with.hpp>

#define BOOST_INTRUSIVE_HAS_MEMBER_FUNCTION_CALLABLE_WITH_FUNCNAME construct
#define BOOST_INTRUSIVE_HAS_MEMBER_FUNCTION_CALLABLE_WITH_NS_BEG namespace boost { namespace container { namespace dtl {
#define BOOST_INTRUSIVE_HAS_MEMBER_FUNCTION_CALLABLE_WITH_NS_END }}}
#define BOOST_INTRUSIVE_HAS_MEMBER_FUNCTION_CALLABLE_WITH_MIN 1
#define BOOST_INTRUSIVE_HAS_MEMBER_FUNCTION_CALLABLE_WITH_MAX 9
#include <boost/intrusive/detail/has_member_function_callable_with.hpp>

#endif   //#ifndef BOOST_CONTAINER_DOXYGEN_INVOKED

namespace boost {
namespace container {

#ifndef BOOST_CONTAINER_DOXYGEN_INVOKED

template<class T, class VoidAllocator, class Options>
class small_vector_allocator;

namespace allocator_traits_detail {

BOOST_INTRUSIVE_HAS_STATIC_MEMBER_FUNC_SIGNATURE(has_max_size, max_size)
BOOST_INTRUSIVE_HAS_STATIC_MEMBER_FUNC_SIGNATURE(has_select_on_container_copy_construction, select_on_container_copy_construction)

}  //namespace allocator_traits_detail {

namespace dtl {

//workaround needed for C++03 compilers with no construct()
//supporting rvalue references
template<class Allocator>
struct is_std_allocator
{ static const bool value = false; };

template<class T>
struct is_std_allocator< std::allocator<T> >
{ static const bool value = true; };

template<class T, class Options>
struct is_std_allocator< small_vector_allocator<T, std::allocator<T>, Options > >
{ static const bool value = true; };

template<class Allocator>
struct is_not_std_allocator
{ static const bool value = !is_std_allocator<Allocator>::value; };

BOOST_INTRUSIVE_INSTANTIATE_DEFAULT_TYPE_TMPLT(pointer)
BOOST_INTRUSIVE_INSTANTIATE_EVAL_DEFAULT_TYPE_TMPLT(const_pointer)
BOOST_INTRUSIVE_INSTANTIATE_DEFAULT_TYPE_TMPLT(reference)
BOOST_INTRUSIVE_INSTANTIATE_DEFAULT_TYPE_TMPLT(const_reference)
BOOST_INTRUSIVE_INSTANTIATE_EVAL_DEFAULT_TYPE_TMPLT(void_pointer)
BOOST_INTRUSIVE_INSTANTIATE_EVAL_DEFAULT_TYPE_TMPLT(const_void_pointer)
BOOST_INTRUSIVE_INSTANTIATE_DEFAULT_TYPE_TMPLT(size_type)
BOOST_INTRUSIVE_INSTANTIATE_DEFAULT_TYPE_TMPLT(propagate_on_container_copy_assignment)
BOOST_INTRUSIVE_INSTANTIATE_DEFAULT_TYPE_TMPLT(propagate_on_container_move_assignment)
BOOST_INTRUSIVE_INSTANTIATE_DEFAULT_TYPE_TMPLT(propagate_on_container_swap)
BOOST_INTRUSIVE_INSTANTIATE_DEFAULT_TYPE_TMPLT(is_always_equal)
BOOST_INTRUSIVE_INSTANTIATE_DEFAULT_TYPE_TMPLT(difference_type)
BOOST_INTRUSIVE_INSTANTIATE_DEFAULT_TYPE_TMPLT(is_partially_propagable)

}  //namespace dtl {

#endif   //#ifndef BOOST_CONTAINER_DOXYGEN_INVOKED

//! The class template allocator_traits supplies a uniform interface to all allocator types.
//! This class is a C++03-compatible implementation of std::allocator_traits
template <typename Allocator>
struct allocator_traits
{
 //allocator_type
 typedef Allocator allocator_type;
 //value_type
 typedef typename allocator_type::value_type value_type;

#if defined(BOOST_CONTAINER_DOXYGEN_INVOKED)
 //! Allocator::pointer if such a type exists; otherwise, value_type*
 //!
 typedef unspecified pointer;
 //! Allocator::const_pointer if such a type exists ; otherwise, pointer_traits<pointer>::rebind<const
 //!
 typedef see_documentation const_pointer;
 //! Non-standard extension
 //! Allocator::reference if such a type exists; otherwise, value_type&
 typedef see_documentation reference;
 //! Non-standard extension
 //! Allocator::const_reference if such a type exists ; otherwise, const value_type&
 typedef see_documentation const_reference;
 //! Allocator::void_pointer if such a type exists ; otherwise, pointer_traits<pointer>::rebind<void>.
 //!
 typedef see_documentation void_pointer;
 //! Allocator::const_void_pointer if such a type exists ; otherwise, pointer_traits<pointer>::rebind<const
 //!
 typedef see_documentation const_void_pointer;
 //! Allocator::difference_type if such a type exists ; otherwise, pointer_traits<pointer>::difference_type.
 //!
 typedef see_documentation difference_type;
 //! Allocator::size_type if such a type exists ; otherwise, make_unsigned<difference_type>::type
 //!
 typedef see_documentation size_type;
 //! Allocator::propagate_on_container_copy_assignment if such a type exists, otherwise a type
 //! with an internal constant static boolean member <code>value</code> == false.
 typedef see_documentation propagate_on_container_copy_assignment;
 //! Allocator::propagate_on_container_move_assignment if such a type exists, otherwise a type
 //! with an internal constant static boolean member <code>value</code> == false.
 typedef see_documentation propagate_on_container_move_assignment;
 //! Allocator::propagate_on_container_swap if such a type exists, otherwise a type
 //! with an internal constant static boolean member <code>value</code> == false.
 typedef see_documentation propagate_on_container_swap;
 //! Allocator::is_always_equal if such a type exists, otherwise a type
 //! with an internal constant static boolean member <code>value</code> == is_empty<Allocator>::value
 typedef see_documentation is_always_equal;
 //! Allocator::is_partially_propagable if such a type exists, otherwise a type
 //! with an internal constant static boolean member <code>value</code> == false
 //! Note: Non-standard extension used to implement `small_vector_allocator`.
 typedef see_documentation is_partially_propagable;
 //! Defines an allocator: Allocator::rebind<T>::other if such a type exists; otherwise, Allocator<T, Args>
 //! if Allocator is a class template instantiation of the form Allocator<U, Args>, where Args is zero or
 //! more type arguments ; otherwise, the instantiation of rebind_alloc is ill-formed.
 //!
 //! In C++03 compilers <code>rebind_alloc</code> is a struct derived from an allocator
 //! deduced by previously detailed rules.
 template <class T> using rebind_alloc = see_documentation;

//! In C++03 compilers <code>rebind_traits</code> is a struct derived from
 //! <code>allocator_traits<OtherAlloc></code>, where <code>OtherAlloc</code> is
 //! the allocator deduced by rules explained in <code>rebind_alloc</code>.
 template <class T> using rebind_traits = allocator_traits<rebind_alloc<T> >;

//! Non-standard extension: Portable allocator rebind for C++03 and C++11 compilers.
 //! <code>type</code> is an allocator related to Allocator deduced deduced by rules explained in <code>rebind_alloc</code>.
 template <class T>
 struct portable_rebind_alloc
 { typedef see_documentation type; };
 #else
 //pointer
 typedef BOOST_INTRUSIVE_OBTAIN_TYPE_WITH_DEFAULT(boost::container::dtl::, Allocator,
 pointer, value_type*)
 pointer;
 //const_pointer
 typedef BOOST_INTRUSIVE_OBTAIN_TYPE_WITH_EVAL_DEFAULT(boost::container::dtl::, Allocator,
 const_pointer, typename boost::intrusive::pointer_traits<pointer>::template
 rebind_pointer<const value_type>)
 const_pointer;
 //reference
 typedef BOOST_INTRUSIVE_OBTAIN_TYPE_WITH_DEFAULT(boost::container::dtl::, Allocator,
 reference, typename dtl::unvoid_ref<value_type>::type)
 reference;
 //const_reference
 typedef BOOST_INTRUSIVE_OBTAIN_TYPE_WITH_DEFAULT(boost::container::dtl::, Allocator,
 const_reference, typename dtl::unvoid_ref<const value_type>::type)
 const_reference;
 //void_pointer
 typedef BOOST_INTRUSIVE_OBTAIN_TYPE_WITH_EVAL_DEFAULT(boost::container::dtl::, Allocator,
 void_pointer, typename boost::intrusive::pointer_traits<pointer>::template
 rebind_pointer<void>)
 void_pointer;
 //const_void_pointer
 typedef BOOST_INTRUSIVE_OBTAIN_TYPE_WITH_EVAL_DEFAULT(boost::container::dtl::, Allocator,
 const_void_pointer, typename boost::intrusive::pointer_traits<pointer>::template
 rebind_pointer<const void>)
 const_void_pointer;
 //difference_type
 typedef BOOST_INTRUSIVE_OBTAIN_TYPE_WITH_DEFAULT(boost::container::dtl::, Allocator,
 difference_type, std::ptrdiff_t)
 difference_type;
 //size_type
 typedef BOOST_INTRUSIVE_OBTAIN_TYPE_WITH_DEFAULT(boost::container::dtl::, Allocator,
 size_type, std::size_t)
 size_type;
 //propagate_on_container_copy_assignment
 typedef BOOST_INTRUSIVE_OBTAIN_TYPE_WITH_DEFAULT(boost::container::dtl::, Allocator,
 propagate_on_container_copy_assignment, dtl::false_type)
 propagate_on_container_copy_assignment;
 //propagate_on_container_move_assignment
 typedef BOOST_INTRUSIVE_OBTAIN_TYPE_WITH_DEFAULT(boost::container::dtl::, Allocator,
 propagate_on_container_move_assignment, dtl::false_type)
 propagate_on_container_move_assignment;
 //propagate_on_container_swap
 typedef BOOST_INTRUSIVE_OBTAIN_TYPE_WITH_DEFAULT(boost::container::dtl::, Allocator,
 propagate_on_container_swap, dtl::false_type)
 propagate_on_container_swap;
 //is_always_equal
 typedef BOOST_INTRUSIVE_OBTAIN_TYPE_WITH_DEFAULT(boost::container::dtl::, Allocator,
 is_always_equal, dtl::is_empty<Allocator>)
 is_always_equal;
 //is_partially_propagable
 typedef BOOST_INTRUSIVE_OBTAIN_TYPE_WITH_DEFAULT(boost::container::dtl::, Allocator,
 is_partially_propagable, dtl::false_type)
 is_partially_propagable;

//rebind_alloc & rebind_traits
 #if !defined(BOOST_NO_CXX11_TEMPLATE_ALIASES)
 //C++11
 template <typename T> using rebind_alloc = typename boost::intrusive::pointer_rebind<Allocator, T>::type;
 template <typename T> using rebind_traits = allocator_traits< rebind_alloc<T> >;
 #else // #if !defined(BOOST_NO_CXX11_TEMPLATE_ALIASES)
 //Some workaround for C++03 or C++11 compilers with no template aliases
 template <typename T>
 struct rebind_alloc : boost::intrusive::pointer_rebind<Allocator,T>::type
 {
 typedef typename boost::intrusive::pointer_rebind<Allocator,T>::type Base;
 #if !defined(BOOST_NO_CXX11_VARIADIC_TEMPLATES)
 template <typename... Args>
 rebind_alloc(BOOST_FWD_REF(Args)... args) : Base(boost::forward<Args>(args)...) {}
 #else // #if !defined(BOOST_NO_CXX11_VARIADIC_TEMPLATES)
 #define BOOST_CONTAINER_ALLOCATOR_TRAITS_REBIND_ALLOC(N) \
 BOOST_MOVE_TMPL_LT##N BOOST_MOVE_CLASS##N BOOST_MOVE_GT##N\
 explicit rebind_alloc(BOOST_MOVE_UREF##N) : Base(BOOST_MOVE_FWD##N){}\
 //
 BOOST_MOVE_ITERATE_0TO9(BOOST_CONTAINER_ALLOCATOR_TRAITS_REBIND_ALLOC)
 #undef BOOST_CONTAINER_ALLOCATOR_TRAITS_REBIND_ALLOC
 #endif // #if !defined(BOOST_NO_CXX11_VARIADIC_TEMPLATES)
 };

template <typename T>
 struct rebind_traits
 : allocator_traits<typename boost::intrusive::pointer_rebind<Allocator, T>::type>
 {};
 #endif // #if !defined(BOOST_NO_CXX11_TEMPLATE_ALIASES)

//portable_rebind_alloc
 template <class T>
 struct portable_rebind_alloc
 { typedef typename boost::intrusive::pointer_rebind<Allocator, T>::type type; };
 #endif //BOOST_CONTAINER_DOXYGEN_INVOKED

//! Returns: <code>a.allocate(n)</code>
 //!
 BOOST_CONTAINER_FORCEINLINE static pointer allocate(Allocator &a, size_type n)
 { return a.allocate(n); }

//! Returns: <code>a.deallocate(p, n)</code>
 //!
 //! Throws: Nothing
 BOOST_CONTAINER_FORCEINLINE static void deallocate(Allocator &a, pointer p, size_type n)
 { a.deallocate(p, n); }

//! Effects: calls <code>a.allocate(n, p)</code> if that call is well-formed;
 //! otherwise, invokes <code>a.allocate(n)</code>
 BOOST_CONTAINER_FORCEINLINE static pointer allocate(Allocator &a, size_type n, const_void_pointer p)
 {
 const bool value = boost::container::dtl::
 has_member_function_callable_with_allocate
 <Allocator, const size_type, const const_void_pointer>::value;
 dtl::bool_<value> flag;
 return allocator_traits::priv_allocate(flag, a, n, p);
 }

//! Effects: calls <code>a.destroy(p)</code> if that call is well-formed;
 //! otherwise, invokes <code>p->~T()</code>.
 template<class T>
 BOOST_CONTAINER_FORCEINLINE static void destroy(Allocator &a, T*p) BOOST_NOEXCEPT_OR_NOTHROW
 {
 typedef T* destroy_pointer;
 const bool value = boost::container::dtl::
 has_member_function_callable_with_destroy
 <Allocator, const destroy_pointer>::value;
 dtl::bool_<value> flag;
 allocator_traits::priv_destroy(flag, a, p);
 }

//! Returns: <code>a.max_size()</code> if that expression is well-formed; otherwise,
 //! <code>numeric_limits<size_type>::max()</code>.
 BOOST_CONTAINER_FORCEINLINE static size_type max_size(const Allocator &a) BOOST_NOEXCEPT_OR_NOTHROW
 {
 const bool value = allocator_traits_detail::has_max_size<Allocator, size_type (Allocator::*)() const>::value;
 dtl::bool_<value> flag;
 return allocator_traits::priv_max_size(flag, a);
 }

//! Returns: <code>a.select_on_container_copy_construction()</code> if that expression is well-formed;
 //! otherwise, a.
 BOOST_CONTAINER_FORCEINLINE static BOOST_CONTAINER_DOC1ST(Allocator,
 typename dtl::if_c
 < allocator_traits_detail::has_select_on_container_copy_construction<Allocator BOOST_MOVE_I Allocator (Allocator::*)() const>::value
 BOOST_MOVE_I Allocator BOOST_MOVE_I const Allocator & >::type)
 select_on_container_copy_construction(const Allocator &a)
 {
 const bool value = allocator_traits_detail::has_select_on_container_copy_construction
 <Allocator, Allocator (Allocator::*)() const>::value;
 dtl::bool_<value> flag;
 return allocator_traits::priv_select_on_container_copy_construction(flag, a);
 }

#if !defined(BOOST_NO_CXX11_VARIADIC_TEMPLATES) || defined(BOOST_CONTAINER_DOXYGEN_INVOKED)
 //! Effects: calls <code>a.construct(p, std::forward<Args>(args)...)</code> if that call is well-formed;
 //! otherwise, invokes <code>`placement new` (static_cast<void*>(p)) T(std::forward<Args>(args)...)</code>
 template <class T, class ...Args>
 BOOST_CONTAINER_FORCEINLINE static void construct(Allocator & a, T* p, BOOST_FWD_REF(Args)... args)
 {
 static const bool value = ::boost::move_detail::and_
 < dtl::is_not_std_allocator<Allocator>
 , boost::container::dtl::has_member_function_callable_with_construct
 < Allocator, T*, Args... >
 >::value;
 dtl::bool_<value> flag;
 allocator_traits::priv_construct(flag, a, p, ::boost::forward<Args>(args)...);
 }
 #endif

//! Returns: <code>a.storage_is_unpropagable(p)</code> if is_partially_propagable::value is true; otherwise,
 //! <code>false</code>.
 BOOST_CONTAINER_FORCEINLINE static bool storage_is_unpropagable(const Allocator &a, pointer p) BOOST_NOEXCEPT_OR_NOTHROW
 {
 dtl::bool_<is_partially_propagable::value> flag;
 return allocator_traits::priv_storage_is_unpropagable(flag, a, p);
 }

//! Returns: <code>true</code> if <code>is_always_equal::value == true</code>, otherwise,
 //! <code>a == b</code>.
 BOOST_CONTAINER_FORCEINLINE static bool equal(const Allocator &a, const Allocator &b) BOOST_NOEXCEPT_OR_NOTHROW
 {
 dtl::bool_<is_always_equal::value> flag;
 return allocator_traits::priv_equal(flag, a, b);
 }

#if !defined(BOOST_CONTAINER_DOXYGEN_INVOKED)
   private:
   BOOST_CONTAINER_FORCEINLINE static pointer priv_allocate(dtl::true_type, Allocator &a, size_type n, const_void_pointer p)
   {  return a.allocate(n, p);  }

BOOST_CONTAINER_FORCEINLINE static pointer priv_allocate(dtl::false_type, Allocator &a, size_type n, const_void_pointer)
   {  return a.allocate(n);  }

template<class T>
 BOOST_CONTAINER_FORCEINLINE static void priv_destroy(dtl::true_type, Allocator &a, T* p) BOOST_NOEXCEPT_OR_NOTHROW
 { a.destroy(p); }

template<class T>
 BOOST_CONTAINER_FORCEINLINE static void priv_destroy(dtl::false_type, Allocator &, T* p) BOOST_NOEXCEPT_OR_NOTHROW
 { p->~T(); (void)p; }

BOOST_CONTAINER_FORCEINLINE static size_type priv_max_size(dtl::true_type, const Allocator &a) BOOST_NOEXCEPT_OR_NOTHROW
   {  return a.max_size();  }

BOOST_CONTAINER_FORCEINLINE static size_type priv_max_size(dtl::false_type, const Allocator &) BOOST_NOEXCEPT_OR_NOTHROW
   {  return size_type(-1)/sizeof(value_type);  }

BOOST_CONTAINER_FORCEINLINE static Allocator priv_select_on_container_copy_construction(dtl::true_type, const Allocator &a)
   {  return a.select_on_container_copy_construction();  }

BOOST_CONTAINER_FORCEINLINE static const Allocator &priv_select_on_container_copy_construction(dtl::false_type, const Allocator &a) BOOST_NOEXCEPT_OR_NOTHROW
   {  return a;  }

#if !defined(BOOST_NO_CXX11_VARIADIC_TEMPLATES)
 template<class T, class ...Args>
 BOOST_CONTAINER_FORCEINLINE static void priv_construct(dtl::true_type, Allocator &a, T *p, BOOST_FWD_REF(Args) ...args)
 { a.construct( p, ::boost::forward<Args>(args)...); }

template<class T, class ...Args>
 BOOST_CONTAINER_FORCEINLINE static void priv_construct(dtl::false_type, Allocator &, T *p, BOOST_FWD_REF(Args) ...args)
 { ::new((void*)p, boost_container_new_t()) T(::boost::forward<Args>(args)...); }
 #else // #if !defined(BOOST_NO_CXX11_VARIADIC_TEMPLATES)
 public:

#define BOOST_CONTAINER_ALLOCATOR_TRAITS_CONSTRUCT_IMPL(N) \
 template<class T BOOST_MOVE_I##N BOOST_MOVE_CLASS##N >\
 BOOST_CONTAINER_FORCEINLINE static void construct(Allocator &a, T *p BOOST_MOVE_I##N BOOST_MOVE_UREF##N)\
 {\
 static const bool value = ::boost::move_detail::and_ \
 < dtl::is_not_std_allocator<Allocator> \
 , boost::container::dtl::has_member_function_callable_with_construct \
 < Allocator, T* BOOST_MOVE_I##N BOOST_MOVE_FWD_T##N > \
 >::value; \
 dtl::bool_<value> flag;\
 (priv_construct)(flag, a, p BOOST_MOVE_I##N BOOST_MOVE_FWD##N);\
 }\
 //
 BOOST_MOVE_ITERATE_0TO8(BOOST_CONTAINER_ALLOCATOR_TRAITS_CONSTRUCT_IMPL)
 #undef BOOST_CONTAINER_ALLOCATOR_TRAITS_CONSTRUCT_IMPL

private:
 /////////////////////////////////
 // priv_construct
 /////////////////////////////////
 #define BOOST_CONTAINER_ALLOCATOR_TRAITS_PRIV_CONSTRUCT_IMPL(N) \
 template<class T BOOST_MOVE_I##N BOOST_MOVE_CLASS##N >\
 BOOST_CONTAINER_FORCEINLINE static void priv_construct(dtl::true_type, Allocator &a, T *p BOOST_MOVE_I##N BOOST_MOVE_UREF##N)\
 { a.construct( p BOOST_MOVE_I##N BOOST_MOVE_FWD##N ); }\
 \
 template<class T BOOST_MOVE_I##N BOOST_MOVE_CLASS##N >\
 BOOST_CONTAINER_FORCEINLINE static void priv_construct(dtl::false_type, Allocator &, T *p BOOST_MOVE_I##N BOOST_MOVE_UREF##N)\
 { ::new((void*)p, boost_container_new_t()) T(BOOST_MOVE_FWD##N); }\
 //
 BOOST_MOVE_ITERATE_0TO8(BOOST_CONTAINER_ALLOCATOR_TRAITS_PRIV_CONSTRUCT_IMPL)
 #undef BOOST_CONTAINER_ALLOCATOR_TRAITS_PRIV_CONSTRUCT_IMPL

#endif   // #if !defined(BOOST_NO_CXX11_VARIADIC_TEMPLATES)

template<class T>
 BOOST_CONTAINER_FORCEINLINE static void priv_construct(dtl::false_type, Allocator &, T *p, const ::boost::container::default_init_t&)
 { ::new((void*)p, boost_container_new_t()) T; }

BOOST_CONTAINER_FORCEINLINE static bool priv_storage_is_unpropagable(dtl::true_type, const Allocator &a, pointer p)
   {  return a.storage_is_unpropagable(p);  }

BOOST_CONTAINER_FORCEINLINE static bool priv_storage_is_unpropagable(dtl::false_type, const Allocator &, pointer)
   {  return false;  }

BOOST_CONTAINER_FORCEINLINE static bool priv_equal(dtl::true_type,  const Allocator &, const Allocator &)
   {  return true;  }

BOOST_CONTAINER_FORCEINLINE static bool priv_equal(dtl::false_type, const Allocator &a, const Allocator &b)
   {  return a == b;  }

#endif   //#if defined(BOOST_CONTAINER_DOXYGEN_INVOKED)
};

#if !defined(BOOST_CONTAINER_DOXYGEN_INVOKED)

template<class T, class AllocatorOrVoid>
struct real_allocator
{
 typedef AllocatorOrVoid type;
};

template<class T>
struct real_allocator<T, void>
{
 typedef new_allocator<T> type;
};

#endif   //#if defined(BOOST_CONTAINER_DOXYGEN_INVOKED)

}  //namespace container {
}  //namespace boost {

#include <boost/container/detail/config_end.hpp>

#endif // ! defined(BOOST_CONTAINER_ALLOCATOR_ALLOCATOR_TRAITS_HPP)