| std::allocator_traits< _Alloc >(3cxx) | std::allocator_traits< _Alloc >(3cxx) |
std::allocator_traits< _Alloc > - Uniform interface to all allocator types.
#include <alloc_traits.h>
Inherits std::__allocator_traits_base.
Inherited by __gnu_cxx::__alloc_traits< _Tp_alloc_type >, and __gnu_cxx::__alloc_traits< _Alloc, typename >.
typedef _Alloc allocator_type
The allocator type. using const_pointer = typename
_Ptr< __c_pointer, const value_type >::type
The allocator's const pointer type. using const_void_pointer =
typename _Ptr< __cv_pointer, const void >::type
The allocator's const void pointer type. using difference_type =
typename _Diff< _Alloc, pointer >::type
The allocator's difference type. using is_always_equal =
__detected_or_t< typename is_empty< _Alloc >::type,
__equal, _Alloc >
Whether all instances of the allocator type compare equal. using
pointer = __detected_or_t< value_type *, __pointer, _Alloc
>
The allocator's pointer type. using
propagate_on_container_copy_assignment = __detected_or_t<
false_type, __pocca, _Alloc >
How the allocator is propagated on copy assignment. using
propagate_on_container_move_assignment = __detected_or_t<
false_type, __pocma, _Alloc >
How the allocator is propagated on move assignment. using
propagate_on_container_swap = __detected_or_t< false_type,
__pocs, _Alloc >
How the allocator is propagated on swap. template<typename _Tp >
using rebind_alloc = __alloc_rebind< _Alloc, _Tp >
template<typename _Tp > using rebind_traits =
allocator_traits< rebind_alloc< _Tp > >
using size_type = typename _Size< _Alloc,
difference_type >::type
The allocator's size type. typedef _Alloc::value_type value_type
The allocated type. using void_pointer = typename
_Ptr< __v_pointer, void >::type
The allocator's void pointer type.
static _GLIBCXX_NODISCARD pointer allocate
(_Alloc &__a, size_type __n)
Allocate memory. static _GLIBCXX_NODISCARD pointer
allocate (_Alloc &__a, size_type __n,
const_void_pointer __hint)
Allocate memory. template<typename _Tp , typename... _Args>
static 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)...))
Construct an object of type `_Tp`. static void deallocate
(_Alloc &__a, pointer __p, size_type __n)
Deallocate memory. template<typename _Tp > static
void destroy (_Alloc &__a, _Tp *__p)
noexcept(noexcept(_S_destroy(__a, __p, 0)))
Destroy an object of type _Tp. static size_type
max_size (const _Alloc &__a) noexcept
The maximum supported allocation size. static _Alloc
select_on_container_copy_construction (const _Alloc
&__rhs)
Obtain an allocator to use when copying a container.
template<typename _Tp > using
__c_pointer = typename _Tp::const_pointer
template<typename _Tp > using __cv_pointer =
typename _Tp::const_void_pointer
template<typename _Tp > using __equal =
typename _Tp::is_always_equal
template<typename _Tp > using __pocca =
typename _Tp::propagate_on_container_copy_assignment
template<typename _Tp > using __pocma =
typename _Tp::propagate_on_container_move_assignment
template<typename _Tp > using __pocs =
typename _Tp::propagate_on_container_swap
template<typename _Tp > using __pointer =
typename _Tp::pointer
template<typename _Tp > using __v_pointer =
typename _Tp::void_pointer
struct std::allocator_traits< _Alloc >"Uniform interface to all allocator types.
Definition at line 83 of file bits/alloc_traits.h.
Definition at line 59 of file bits/alloc_traits.h.
Definition at line 63 of file bits/alloc_traits.h.
Definition at line 71 of file bits/alloc_traits.h.
Definition at line 65 of file bits/alloc_traits.h.
Definition at line 67 of file bits/alloc_traits.h.
Definition at line 69 of file bits/alloc_traits.h.
Definition at line 57 of file bits/alloc_traits.h.
Definition at line 61 of file bits/alloc_traits.h.
The allocator type.
Definition at line 86 of file bits/alloc_traits.h.
The allocator's const pointer type. Alloc::const_pointer if that type exists, otherwise pointer_traits<pointer>::rebind<const value_type>
Definition at line 135 of file bits/alloc_traits.h.
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 151 of file bits/alloc_traits.h.
The allocator's difference type. Alloc::difference_type if that type exists, otherwise pointer_traits<pointer>::difference_type
Definition at line 159 of file bits/alloc_traits.h.
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 202 of file bits/alloc_traits.h.
The allocator's pointer type. Alloc::pointer if that type exists, otherwise value_type*
Definition at line 95 of file bits/alloc_traits.h.
How the allocator is propagated on copy assignment. Alloc::propagate_on_container_copy_assignment if that type exists, otherwise false_type
Definition at line 175 of file bits/alloc_traits.h.
How the allocator is propagated on move assignment. Alloc::propagate_on_container_move_assignment if that type exists, otherwise false_type
Definition at line 184 of file bits/alloc_traits.h.
How the allocator is propagated on swap. Alloc::propagate_on_container_swap if that type exists, otherwise false_type
Definition at line 193 of file bits/alloc_traits.h.
Definition at line 206 of file bits/alloc_traits.h.
Definition at line 208 of file bits/alloc_traits.h.
The allocator's size type. Alloc::size_type if that type exists, otherwise make_unsigned<difference_type>::type
Definition at line 167 of file bits/alloc_traits.h.
The allocated type.
Definition at line 88 of file bits/alloc_traits.h.
The allocator's void pointer type. Alloc::void_pointer if that type exists, otherwise pointer_traits<pointer>::rebind<void>
Definition at line 143 of file bits/alloc_traits.h.
Allocate memory.
Parameters
Calls a.allocate(n)
Definition at line 304 of file bits/alloc_traits.h.
Referenced by std::__allocate_guarded().
Allocate memory.
Parameters
Returns
Returns a.allocate(n, hint) if that expression is well-formed, otherwise returns a.allocate(n)
Definition at line 319 of file bits/alloc_traits.h.
[inline], [static], [noexcept]"
Construct an object of type `_Tp`.
Parameters
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 346 of file bits/alloc_traits.h.
Deallocate memory.
Parameters
Calls a.deallocate(p, n)
Definition at line 331 of file bits/alloc_traits.h.
Referenced by std::__allocated_ptr< _Alloc >::~__allocated_ptr().
Destroy an object of type _Tp.
Parameters
Calls __a.destroy(__p) if that expression is well-formed, otherwise calls __p->~_Tp()
Definition at line 361 of file bits/alloc_traits.h.
The maximum supported allocation size.
Parameters
Returns
Returns __a.max_size() if that expression is well-formed, otherwise returns numeric_limits<size_type>::max()
Definition at line 373 of file bits/alloc_traits.h.
Obtain an allocator to use when copying a container.
Parameters
Returns
Returns __rhs.select_on_container_copy_construction() if that expression is well-formed, otherwise returns __rhs
Definition at line 385 of file bits/alloc_traits.h.
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