Inheritance diagram for std::allocator_traits< _Alloc >:

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Public Types
typedef _Alloc	allocator_type

typedef __const_pointer	const_pointer

typedef __const_void_pointer	const_void_pointer

typedef __difference_type	difference_type

typedef __pointer	pointer

typedef __propagate_on_container_copy_assignment	propagate_on_container_copy_assignment

typedef __propagate_on_container_move_assignment	propagate_on_container_move_assignment

typedef __propagate_on_container_swap	propagate_on_container_swap

template<typename _Tp >
using	rebind_alloc = typename __alloctr_rebind< _Alloc, _Tp >::__type

template<typename _Tp >
using	rebind_traits = allocator_traits< rebind_alloc< _Tp >>

typedef __size_type	size_type

typedef _Alloc::value_type	value_type

typedef __void_pointer	void_pointer

Static Public Member Functions
static pointer	allocate (_Alloc &__a, size_type __n)

static pointer	allocate (_Alloc &__a, size_type __n, const_void_pointer __hint)

template<typename _Tp , typename... _Args>
static auto	construct (_Alloc &__a, _Tp *__p, _Args &&...__args) -> decltype(_S_construct(__a, __p, std::forward< _Args >(__args)...))

static void	deallocate (_Alloc &__a, pointer __p, size_type __n)

template<class _Tp >
static void	destroy (_Alloc &__a, _Tp *__p)

static size_type	max_size (const _Alloc &__a) noexcept

static _Alloc	select_on_container_copy_construction (const _Alloc &__rhs)

Detailed Description

template<typename _Alloc>
struct std::allocator_traits< _Alloc >

Uniform interface to all allocator types.

Definition at line 85 of file bits/alloc_traits.h.

Member Typedef Documentation

template<typename _Alloc>

typedef _Alloc std::allocator_traits< _Alloc >::allocator_type

The allocator type.

Definition at line 88 of file bits/alloc_traits.h.

template<typename _Alloc>

typedef __const_pointer std::allocator_traits< _Alloc >::const_pointer

The allocator's const pointer type.

Alloc::const_pointer if that type exists, otherwise pointer_traits<pointer>::rebind<const value_type>

Definition at line 118 of file bits/alloc_traits.h.

template<typename _Alloc>

typedef __const_void_pointer std::allocator_traits< _Alloc >::const_void_pointer

The allocator's const void pointer type.

Alloc::const_void_pointer if that type exists, otherwise pointer_traits<pointer>::rebind<const void>

Definition at line 140 of file bits/alloc_traits.h.

template<typename _Alloc>

typedef __difference_type std::allocator_traits< _Alloc >::difference_type

The allocator's difference type.

Alloc::difference_type if that type exists, otherwise pointer_traits<pointer>::difference_type

Definition at line 151 of file bits/alloc_traits.h.

template<typename _Alloc>

typedef __pointer std::allocator_traits< _Alloc >::pointer

The allocator's pointer type.

Alloc::pointer if that type exists, otherwise value_type*

Definition at line 107 of file bits/alloc_traits.h.

template<typename _Alloc>

typedef __propagate_on_container_copy_assignment std::allocator_traits< _Alloc >::propagate_on_container_copy_assignment

How the allocator is propagated on copy assignment.

Alloc::propagate_on_container_copy_assignment if that type exists, otherwise false_type

Definition at line 174 of file bits/alloc_traits.h.

template<typename _Alloc>

typedef __propagate_on_container_move_assignment std::allocator_traits< _Alloc >::propagate_on_container_move_assignment

How the allocator is propagated on move assignment.

Alloc::propagate_on_container_move_assignment if that type exists, otherwise false_type

Definition at line 186 of file bits/alloc_traits.h.

template<typename _Alloc>

typedef __propagate_on_container_swap std::allocator_traits< _Alloc >::propagate_on_container_swap

How the allocator is propagated on swap.

Alloc::propagate_on_container_swap if that type exists, otherwise false_type

Definition at line 197 of file bits/alloc_traits.h.

template<typename _Alloc>

typedef __size_type std::allocator_traits< _Alloc >::size_type

The allocator's size type.

Alloc::size_type if that type exists, otherwise make_unsigned<difference_type>::type

Definition at line 162 of file bits/alloc_traits.h.

template<typename _Alloc>

typedef _Alloc::value_type std::allocator_traits< _Alloc >::value_type

The allocated type.

Definition at line 90 of file bits/alloc_traits.h.

template<typename _Alloc>

typedef __void_pointer std::allocator_traits< _Alloc >::void_pointer

The allocator's void pointer type.

Alloc::void_pointer if that type exists, otherwise pointer_traits<pointer>::rebind<void>

Definition at line 129 of file bits/alloc_traits.h.

Member Function Documentation

template<typename _Alloc>

static pointer std::allocator_traits< _Alloc >::allocate	(	_Alloc &	__a,
		size_type	__n
	)

inlinestatic

Allocate memory.

Parameters

__a	An allocator.
__n	The number of objects to allocate space for.

Calls a.allocate(n)

Definition at line 350 of file bits/alloc_traits.h.

template<typename _Alloc>

static pointer std::allocator_traits< _Alloc >::allocate	(	_Alloc &	__a,
		size_type	__n,
		const_void_pointer	__hint
	)

inlinestatic

Allocate memory.

Parameters

__a	An allocator.
__n	The number of objects to allocate space for.
__hint	Aid to locality.

Returns: Memory of suitable size and alignment for n objects of type value_type

Returns a.allocate(n, hint) if that expression is well-formed, otherwise returns a.allocate(n)

Definition at line 365 of file bits/alloc_traits.h.

template<typename _Alloc>

template<typename _Tp , typename... _Args>

static auto std::allocator_traits< _Alloc >::construct	(	_Alloc &	__a,
		_Tp *	__p,
		_Args &&...	__args
	)		-> decltype(_S_construct(__a, __p, std::forward<_Args>(__args)...))

inlinestatic

Construct an object of type _Tp.

Parameters

__a	An allocator.
__p	Pointer to memory of suitable size and alignment for Tp
__args	Constructor arguments.

Calls __a.construct(__p, std::forward<Args>(__args)...) if that expression is well-formed, otherwise uses placement-new to construct an object of type _Tp at location __p from the arguments __args...

Definition at line 391 of file bits/alloc_traits.h.

template<typename _Alloc>

static void std::allocator_traits< _Alloc >::deallocate	(	_Alloc &	__a,
		pointer	__p,
		size_type	__n
	)

inlinestatic

Deallocate memory.

Parameters

__a	An allocator.
__p	Pointer to the memory to deallocate.
__n	The number of objects space was allocated for.

Calls a.deallocate(p, n)

Definition at line 376 of file bits/alloc_traits.h.

template<typename _Alloc>

template<class _Tp >

static void std::allocator_traits< _Alloc >::destroy	(	_Alloc &	__a,
		_Tp *	__p
	)

inlinestatic

Destroy an object of type _Tp.

Parameters

__a	An allocator.
__p	Pointer to the object to destroy

Calls __a.destroy(__p) if that expression is well-formed, otherwise calls __p->~_Tp()

Definition at line 404 of file bits/alloc_traits.h.

template<typename _Alloc>

static size_type std::allocator_traits< _Alloc >::max_size ( const _Alloc & __a )

inlinestaticnoexcept

The maximum supported allocation size.

Parameters

__a	An allocator.

Returns: __a.max_size() or numeric_limits<size_type>::max()

Returns __a.max_size() if that expression is well-formed, otherwise returns numeric_limits<size_type>::max()

Definition at line 415 of file bits/alloc_traits.h.

Referenced by std::forward_list< _Tp, _Alloc >::max_size().

template<typename _Alloc>

static _Alloc std::allocator_traits< _Alloc >::select_on_container_copy_construction ( const _Alloc & __rhs )

inlinestatic

Obtain an allocator to use when copying a container.

Parameters

__rhs An allocator.

Returns: __rhs.select_on_container_copy_construction() or __rhs

Returns __rhs.select_on_container_copy_construction() if that expression is well-formed, otherwise returns __rhs

Definition at line 427 of file bits/alloc_traits.h.

The documentation for this struct was generated from the following file:

bits/alloc_traits.h

Public Types

Static Public Member Functions

Detailed Description

template<typename _Alloc> struct std::allocator_traits< _Alloc >

Member Typedef Documentation

Member Function Documentation

template<typename _Alloc>
struct std::allocator_traits< _Alloc >