libstdc++
std::allocator_traits< pmr::polymorphic_allocator< _Tp > > Struct Template Reference

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
__aAn allocator.
__nThe 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
__aAn allocator.
__nThe 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
__aAn allocator.
__pPointer to memory of suitable size and alignment for an object of type _Up.
__argsConstructor 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
__aAn allocator.
__pPointer to the memory to deallocate.
__nThe 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
__aAn allocator.
__pPointer 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: