Public Types
using	allocator_type = pmr::polymorphic_allocator< _Tp >

using	const_pointer = const _Tp *

using	const_void_pointer = const void *

using	difference_type = std::ptrdiff_t

using	is_always_equal = false_type

using	pointer = _Tp *

template<typename _Up >
using	rebind_alloc = pmr::polymorphic_allocator< _Up >

template<typename _Up >
using	rebind_traits = allocator_traits< pmr::polymorphic_allocator< _Up > >

using	size_type = std::size_t

using	value_type = _Tp

using	void_pointer = void *

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

static pointer	allocate (allocator_type &__a, size_type __n, const_void_pointer)

template<typename _Up , typename... _Args>
static void	construct (allocator_type &__a, _Up *__p, _Args &&... __args)

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

template<typename _Up >
static constexpr void	destroy (allocator_type &, _Up *__p) noexcept(is_nothrow_destructible< _Up >::value)

static constexpr size_type	max_size (const allocator_type &) noexcept

using	propagate_on_container_copy_assignment = false_type

using	propagate_on_container_move_assignment = false_type

using	propagate_on_container_swap = false_type

static allocator_type	select_on_container_copy_construction (const allocator_type &) noexcept

Detailed Description

template<typename _Tp>
struct std::allocator_traits< pmr::polymorphic_allocator< _Tp > >

Partial specialization for std::pmr::polymorphic_allocator.

Definition at line 425 of file memory_resource.

Member Typedef Documentation

◆ allocator_type

template<typename _Tp >

using std::allocator_traits< pmr::polymorphic_allocator< _Tp > >::allocator_type = pmr::polymorphic_allocator<_Tp>

The allocator type.

Definition at line 428 of file memory_resource.

◆ const_pointer

template<typename _Tp >

using std::allocator_traits< pmr::polymorphic_allocator< _Tp > >::const_pointer = const _Tp*

The allocator's const pointer type.

Definition at line 437 of file memory_resource.

◆ const_void_pointer

template<typename _Tp >

using std::allocator_traits< pmr::polymorphic_allocator< _Tp > >::const_void_pointer = const void*

The allocator's const void pointer type.

Definition at line 443 of file memory_resource.

◆ difference_type

template<typename _Tp >

using std::allocator_traits< pmr::polymorphic_allocator< _Tp > >::difference_type = std::ptrdiff_t

The allocator's difference type.

Definition at line 446 of file memory_resource.

◆ is_always_equal

template<typename _Tp >

using std::allocator_traits< pmr::polymorphic_allocator< _Tp > >::is_always_equal = false_type

Whether all instances of the allocator type compare equal.

Definition at line 465 of file memory_resource.

◆ pointer

template<typename _Tp >

using std::allocator_traits< pmr::polymorphic_allocator< _Tp > >::pointer = _Tp*

The allocator's pointer type.

Definition at line 434 of file memory_resource.

◆ propagate_on_container_copy_assignment

template<typename _Tp >

using std::allocator_traits< pmr::polymorphic_allocator< _Tp > >::propagate_on_container_copy_assignment = false_type

A polymorphic_allocator does not propagate when a container is copied, moved, or swapped.

Definition at line 455 of file memory_resource.

◆ propagate_on_container_move_assignment

template<typename _Tp >

using std::allocator_traits< pmr::polymorphic_allocator< _Tp > >::propagate_on_container_move_assignment = false_type

A polymorphic_allocator does not propagate when a container is copied, moved, or swapped.

Definition at line 456 of file memory_resource.

◆ propagate_on_container_swap

template<typename _Tp >

using std::allocator_traits< pmr::polymorphic_allocator< _Tp > >::propagate_on_container_swap = false_type

A polymorphic_allocator does not propagate when a container is copied, moved, or swapped.

Definition at line 457 of file memory_resource.

◆ rebind_alloc

template<typename _Tp >

template<typename _Up >

using std::allocator_traits< pmr::polymorphic_allocator< _Tp > >::rebind_alloc = pmr::polymorphic_allocator<_Up>

Definition at line 468 of file memory_resource.

◆ rebind_traits

template<typename _Tp >

template<typename _Up >

using std::allocator_traits< pmr::polymorphic_allocator< _Tp > >::rebind_traits = allocator_traits<pmr::polymorphic_allocator<_Up> >

Definition at line 471 of file memory_resource.

◆ size_type

template<typename _Tp >

using std::allocator_traits< pmr::polymorphic_allocator< _Tp > >::size_type = std::size_t

The allocator's size type.

Definition at line 449 of file memory_resource.

◆ value_type

template<typename _Tp >

using std::allocator_traits< pmr::polymorphic_allocator< _Tp > >::value_type = _Tp

The allocated type.

Definition at line 431 of file memory_resource.

◆ void_pointer

template<typename _Tp >

using std::allocator_traits< pmr::polymorphic_allocator< _Tp > >::void_pointer = void*

The allocator's void pointer type.

Definition at line 440 of file memory_resource.

Member Function Documentation

◆ allocate() [1/2]

template<typename _Tp >

static pointer std::allocator_traits< pmr::polymorphic_allocator< _Tp > >::allocate	(	allocator_type &	__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 481 of file memory_resource.

◆ allocate() [2/2]

template<typename _Tp >

static pointer std::allocator_traits< pmr::polymorphic_allocator< _Tp > >::allocate	(	allocator_type &	__a,
		size_type	__n,
		const_void_pointer
	)

inlinestatic

Allocate memory.

Parameters

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

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

The third parameter is ignored..

Returns a.allocate(n).

Definition at line 496 of file memory_resource.

◆ construct()

template<typename _Tp >

template<typename _Up , typename... _Args>

static void std::allocator_traits< pmr::polymorphic_allocator< _Tp > >::construct	(	allocator_type &	__a,
		_Up *	__p,
		_Args &&...	__args
	)

inlinestatic

Construct an object of type _Up

Parameters

__a	An allocator.
__p	Pointer to memory of suitable size and alignment for an object of type `_Up`.
__args	Constructor arguments.

Calls __a.construct(__p, std::forward<_Args>(__args)...) in C++11, C++14 and C++17. Changed in C++20 to call std::construct_at(__p, std::forward<_Args>(__args)...) instead.

Definition at line 524 of file memory_resource.

◆ deallocate()

template<typename _Tp >

static void std::allocator_traits< pmr::polymorphic_allocator< _Tp > >::deallocate	(	allocator_type &	__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 508 of file memory_resource.

◆ destroy()

template<typename _Tp >

template<typename _Up >

static constexpr void std::allocator_traits< pmr::polymorphic_allocator< _Tp > >::destroy	(	allocator_type &	,
		_Up *	__p
	)

inlinestaticconstexprnoexcept

Destroy an object of type _Up

Parameters

__a	An allocator.
__p	Pointer to the object to destroy

Calls p->_Up().

Definition at line 536 of file memory_resource.

◆ max_size()

template<typename _Tp >

static constexpr size_type std::allocator_traits< pmr::polymorphic_allocator< _Tp > >::max_size ( const allocator_type & )

inlinestaticconstexprnoexcept

The maximum supported allocation size.

Returns: numeric_limits<size_t>::max() / sizeof(value_type)

Definition at line 545 of file memory_resource.

◆ select_on_container_copy_construction()

template<typename _Tp >

static allocator_type std::allocator_traits< pmr::polymorphic_allocator< _Tp > >::select_on_container_copy_construction ( const allocator_type & )

inlinestaticnoexcept

A polymorphic_allocator does not propagate when a container is copied, moved, or swapped.

Definition at line 460 of file memory_resource.

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

memory_resource

Public Types

Static Public Member Functions

Detailed Description

Member Typedef Documentation

◆ allocator_type

◆ const_pointer

◆ const_void_pointer

◆ difference_type

◆ is_always_equal

◆ pointer

◆ propagate_on_container_copy_assignment

◆ propagate_on_container_move_assignment

◆ propagate_on_container_swap

◆ rebind_alloc

◆ rebind_traits

◆ size_type

◆ value_type

◆ void_pointer

Member Function Documentation

◆ allocate() [1/2]

◆ allocate() [2/2]

◆ construct()

◆ deallocate()

◆ destroy()

◆ max_size()

◆ select_on_container_copy_construction()