Inheritance diagram for __gnu_cxx::__alloc_traits< _Alloc, typename >:

[legend]

Public Types
typedef std::allocator_traits< _Alloc >	_Base_type

typedef _Alloc	allocator_type

typedef _Base_type::const_pointer	const_pointer

typedef const value_type &	const_reference

using	const_void_pointer = typename _Ptr< __cv_pointer, const void >::type

typedef _Base_type::difference_type	difference_type

using	is_always_equal = __detected_or_t< typename is_empty< _Alloc >::type, __equal, _Alloc >

typedef _Base_type::pointer	pointer

using	propagate_on_container_copy_assignment = __detected_or_t< false_type, __pocca, _Alloc >

using	propagate_on_container_move_assignment = __detected_or_t< false_type, __pocma, _Alloc >

using	propagate_on_container_swap = __detected_or_t< false_type, __pocs, _Alloc >

template<typename _Tp >
using	rebind_alloc = __alloc_rebind< _Alloc, _Tp >

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

typedef value_type &	reference

typedef _Base_type::size_type	size_type

typedef _Base_type::value_type	value_type

using	void_pointer = typename _Ptr< __v_pointer, void >::type

Static Public Member Functions
static constexpr bool	_S_always_equal ()

static constexpr bool	_S_nothrow_move ()

static constexpr void	_S_on_swap (_Alloc &__a, _Alloc &__b)

static constexpr bool	_S_propagate_on_copy_assign ()

static constexpr bool	_S_propagate_on_move_assign ()

static constexpr bool	_S_propagate_on_swap ()

static constexpr _Alloc	_S_select_on_copy (const _Alloc &__a)

static constexpr pointer	allocate (_Alloc &__a, size_type __n)

static constexpr pointer	allocate (_Alloc &__a, size_type __n)

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

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

template<typename _Ptr , typename... _Args>
static constexpr std::__enable_if_t< __is_custom_pointer< _Ptr >::value >	construct (_Alloc &__a, _Ptr __p, _Args &&... __args) noexcept(noexcept(_Base_type::construct(__a, std::__to_address(__p), std::forward< _Args >(__args)...)))

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

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

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

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

template<typename _Ptr >
static constexpr std::__enable_if_t< __is_custom_pointer< _Ptr >::value >	destroy (_Alloc &__a, _Ptr __p) noexcept(noexcept(_Base_type::destroy(__a, std::__to_address(__p))))

template<typename _Tp >
static constexpr void	destroy (_Alloc &__a, _Tp *__p) noexcept(noexcept(_S_destroy(__a, __p, 0)))

template<typename _Tp >
static constexpr void	destroy (_Alloc &__a, _Tp *__p) noexcept(noexcept(_S_destroy(__a, __p, 0)))

static constexpr size_type	max_size (const _Alloc &__a) noexcept

static constexpr size_type	max_size (const _Alloc &__a) noexcept

static constexpr _Alloc	select_on_container_copy_construction (const _Alloc &__rhs)

Detailed Description

template<typename _Alloc, typename = typename _Alloc::value_type>
struct __gnu_cxx::__alloc_traits< _Alloc, typename >

Uniform interface to C++98 and C++11 allocators.

Definition at line 48 of file ext/alloc_traits.h.

Member Typedef Documentation

◆ const_void_pointer

template<typename _Alloc >

using std::allocator_traits< _Alloc >::const_void_pointer = typename _Ptr<__cv_pointer, const void>::type

inherited

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 158 of file bits/alloc_traits.h.

◆ is_always_equal

template<typename _Alloc >

using std::allocator_traits< _Alloc >::is_always_equal = __detected_or_t<typename is_empty<_Alloc>::type, __equal, _Alloc>

inherited

Whether all instances of the allocator type compare equal.

Alloc::is_always_equal if that type exists, otherwise is_empty<Alloc>::type

Definition at line 209 of file bits/alloc_traits.h.

◆ propagate_on_container_copy_assignment

template<typename _Alloc >

using std::allocator_traits< _Alloc >::propagate_on_container_copy_assignment = __detected_or_t<false_type, __pocca, _Alloc>

inherited

How the allocator is propagated on copy assignment.

Alloc::propagate_on_container_copy_assignment if that type exists, otherwise false_type

Definition at line 182 of file bits/alloc_traits.h.

◆ propagate_on_container_move_assignment

template<typename _Alloc >

using std::allocator_traits< _Alloc >::propagate_on_container_move_assignment = __detected_or_t<false_type, __pocma, _Alloc>

inherited

How the allocator is propagated on move assignment.

Alloc::propagate_on_container_move_assignment if that type exists, otherwise false_type

Definition at line 191 of file bits/alloc_traits.h.

◆ propagate_on_container_swap

template<typename _Alloc >

using std::allocator_traits< _Alloc >::propagate_on_container_swap = __detected_or_t<false_type, __pocs, _Alloc>

inherited

How the allocator is propagated on swap.

Alloc::propagate_on_container_swap if that type exists, otherwise false_type

Definition at line 200 of file bits/alloc_traits.h.

◆ void_pointer

template<typename _Alloc >

using std::allocator_traits< _Alloc >::void_pointer = typename _Ptr<__v_pointer, void>::type

inherited

The allocator's void pointer type.

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

Definition at line 150 of file bits/alloc_traits.h.

Member Function Documentation

◆ allocate() [1/4]

template<typename _Alloc >

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

inlinestaticconstexprinherited

Allocate memory.

Parameters

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

Calls a.allocate(n)

Definition at line 317 of file bits/alloc_traits.h.

◆ allocate() [2/4]

template<typename _Alloc , typename = typename _Alloc::value_type>

static constexpr pointer std::allocator_traits< _Alloc >::allocate

inlinestaticconstexpr

Allocate memory.

Parameters

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

Calls a.allocate(n)

Definition at line 317 of file bits/alloc_traits.h.

◆ allocate() [3/4]

template<typename _Alloc >

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

inlinestaticconstexprinherited

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 332 of file bits/alloc_traits.h.

◆ allocate() [4/4]

template<typename _Alloc , typename = typename _Alloc::value_type>

static constexpr pointer std::allocator_traits< _Alloc >::allocate

inlinestaticconstexpr

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 332 of file bits/alloc_traits.h.

◆ construct() [1/2]

template<typename _Alloc >

template<typename _Tp , typename... _Args>

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

inlinestaticconstexprnoexceptinherited

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 360 of file bits/alloc_traits.h.

◆ construct() [2/2]

template<typename _Alloc , typename = typename _Alloc::value_type>

template<typename _Tp , typename... _Args>

static constexpr auto std::allocator_traits< _Alloc >::construct	(	typename _Tp	,
		typename...	_Args
	)

inlinestaticconstexprnoexcept

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 360 of file bits/alloc_traits.h.

◆ deallocate() [1/2]

template<typename _Alloc >

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

inlinestaticconstexprinherited

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 344 of file bits/alloc_traits.h.

◆ deallocate() [2/2]

template<typename _Alloc , typename = typename _Alloc::value_type>

static constexpr void std::allocator_traits< _Alloc >::deallocate

inlinestaticconstexpr

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 344 of file bits/alloc_traits.h.

◆ destroy() [1/2]

template<typename _Alloc >

template<typename _Tp >

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

inlinestaticconstexprnoexceptinherited

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 376 of file bits/alloc_traits.h.

Referenced by std::_Destroy().

◆ destroy() [2/2]

template<typename _Alloc , typename = typename _Alloc::value_type>

template<typename _Tp >

static constexpr void std::allocator_traits< _Alloc >::destroy ( typename _Tp )

inlinestaticconstexprnoexcept

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 376 of file bits/alloc_traits.h.

◆ max_size() [1/2]

template<typename _Alloc >

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

inlinestaticconstexprnoexceptinherited

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 389 of file bits/alloc_traits.h.

◆ max_size() [2/2]

template<typename _Alloc , typename = typename _Alloc::value_type>

static constexpr size_type std::allocator_traits< _Alloc >::max_size

inlinestaticconstexprnoexcept

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 389 of file bits/alloc_traits.h.

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

◆ select_on_container_copy_construction()

template<typename _Alloc >

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

inlinestaticconstexprinherited

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 401 of file bits/alloc_traits.h.

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

ext/alloc_traits.h

Public Types

Static Public Member Functions

Detailed Description

template<typename _Alloc, typename = typename _Alloc::value_type> struct __gnu_cxx::__alloc_traits< _Alloc, typename >

Member Typedef Documentation

◆ const_void_pointer

◆ is_always_equal

◆ propagate_on_container_copy_assignment

◆ propagate_on_container_move_assignment

◆ propagate_on_container_swap

◆ void_pointer

Member Function Documentation

◆ allocate() [1/4]

◆ allocate() [2/4]

◆ allocate() [3/4]

◆ allocate() [4/4]

◆ construct() [1/2]

◆ construct() [2/2]

◆ deallocate() [1/2]

◆ deallocate() [2/2]

◆ destroy() [1/2]

◆ destroy() [2/2]

◆ max_size() [1/2]

◆ max_size() [2/2]

◆ select_on_container_copy_construction()

template<typename _Alloc, typename = typename _Alloc::value_type>
struct __gnu_cxx::__alloc_traits< _Alloc, typename >