libstdc++
std::allocator_traits< allocator< void > > Struct Reference
Utilities » Memory » Allocators

#include <memory>

Public Types

using allocator_type
using const_pointer
using const_void_pointer
using difference_type
using is_always_equal
using pointer
using propagate_on_container_copy_assignment
using propagate_on_container_move_assignment
using propagate_on_container_swap
template<typename _Up>
using rebind_alloc
template<typename _Up>
using rebind_traits
using size_type
using value_type
using void_pointer

Static Public Member Functions

static void * allocate (allocator_type &, size_type, const void *=nullptr)=delete
template<typename _Up, typename... _Args>
static constexpr void construct (allocator_type &, _Up *__p, _Args &&... __args) noexcept(__is_nothrow_new_constructible< _Up, _Args... >)
static void deallocate (allocator_type &, void *, size_type)=delete
template<typename _Up>
static constexpr void destroy (allocator_type &, _Up *__p) noexcept(is_nothrow_destructible< _Up >::value)
static size_type max_size (const allocator_type &)=delete
static constexpr allocator_type select_on_container_copy_construction (const allocator_type &__rhs)

Detailed Description

Explicit specialization for std::allocator<void>

Since
C++11
See also
std::allocator_traits

Definition at line 777 of file bits/alloc_traits.h.

Member Typedef Documentation

◆ allocator_type

using std::allocator_traits< allocator< void > >::allocator_type

The allocator type.

Definition at line 780 of file bits/alloc_traits.h.

◆ const_pointer

using std::allocator_traits< allocator< void > >::const_pointer

The allocator's const pointer type.

Definition at line 789 of file bits/alloc_traits.h.

◆ const_void_pointer

using std::allocator_traits< allocator< void > >::const_void_pointer

The allocator's const void pointer type.

Definition at line 795 of file bits/alloc_traits.h.

◆ difference_type

using std::allocator_traits< allocator< void > >::difference_type

The allocator's difference type.

Definition at line 798 of file bits/alloc_traits.h.

◆ is_always_equal

using std::allocator_traits< allocator< void > >::is_always_equal

Whether all instances of the allocator type compare equal.

Definition at line 813 of file bits/alloc_traits.h.

◆ pointer

using std::allocator_traits< allocator< void > >::pointer

The allocator's pointer type.

Definition at line 786 of file bits/alloc_traits.h.

◆ propagate_on_container_copy_assignment

using std::allocator_traits< allocator< void > >::propagate_on_container_copy_assignment

How the allocator is propagated on copy assignment.

Definition at line 804 of file bits/alloc_traits.h.

◆ propagate_on_container_move_assignment

using std::allocator_traits< allocator< void > >::propagate_on_container_move_assignment

How the allocator is propagated on move assignment.

Definition at line 807 of file bits/alloc_traits.h.

◆ propagate_on_container_swap

using std::allocator_traits< allocator< void > >::propagate_on_container_swap

How the allocator is propagated on swap.

Definition at line 810 of file bits/alloc_traits.h.

◆ rebind_alloc

template<typename _Up>
using std::allocator_traits< allocator< void > >::rebind_alloc

Definition at line 816 of file bits/alloc_traits.h.

◆ rebind_traits

template<typename _Up>
using std::allocator_traits< allocator< void > >::rebind_traits

Definition at line 819 of file bits/alloc_traits.h.

◆ size_type

using std::allocator_traits< allocator< void > >::size_type

The allocator's size type.

Definition at line 801 of file bits/alloc_traits.h.

◆ value_type

using std::allocator_traits< allocator< void > >::value_type

The allocated type.

Definition at line 783 of file bits/alloc_traits.h.

◆ void_pointer

using std::allocator_traits< allocator< void > >::void_pointer

The allocator's void pointer type.

Definition at line 792 of file bits/alloc_traits.h.

Member Function Documentation

◆ allocate()

void * std::allocator_traits< allocator< void > >::allocate ( allocator_type & ,
size_type ,
const void * = nullptr )
staticdelete

allocate is ill-formed for allocator<void>

◆ construct()

template<typename _Up, typename... _Args>
constexpr void std::allocator_traits< allocator< void > >::construct ( allocator_type & ,
_Up * __p,
_Args &&... __args )
inlinestaticconstexprnoexcept

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 843 of file bits/alloc_traits.h.

References std::_Construct(), and std::forward().

◆ deallocate()

void std::allocator_traits< allocator< void > >::deallocate ( allocator_type & ,
void * ,
size_type  )
staticdelete

deallocate is ill-formed for allocator<void>

◆ destroy()

template<typename _Up>
constexpr void std::allocator_traits< allocator< void > >::destroy ( allocator_type & ,
_Up * __p )
inlinestaticconstexprnoexcept

Destroy an object of type _Up

Parameters
__aAn allocator.
__pPointer to the object to destroy

Invokes the destructor for *__p.

Definition at line 857 of file bits/alloc_traits.h.

References std::_Destroy().

◆ max_size()

size_type std::allocator_traits< allocator< void > >::max_size ( const allocator_type & )
staticdelete

max_size is ill-formed for allocator<void>

◆ select_on_container_copy_construction()

constexpr allocator_type std::allocator_traits< allocator< void > >::select_on_container_copy_construction ( const allocator_type & __rhs)
inlinestaticconstexpr

Obtain an allocator to use when copying a container.

Parameters
__rhsAn allocator.
Returns
__rhs

Definition at line 872 of file bits/alloc_traits.h.

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