Manpages - std_allocator_traits.3

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 constexpr pointer allocate (_Alloc &__a, size_type __n)
Allocate memory.

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

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)…))
Construct an object of type _Tp

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

template<typename _Tp > static constexpr void destroy (_Alloc &__a, _Tp *__p) noexcept(noexcept(_S_destroy(__a, __p, 0)))
Destroy an object of type _Tp.

static constexpr size_type max_size (const _Alloc &__a) noexcept
The maximum supported allocation size.

static constexpr _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 86 of file bits/alloc_traits.h.

std::__allocator_traits_base::__c_pointer = typename _Tp::const_pointer= [protected]=, = [inherited]= Definition at line 62 of file bits/alloc_traits.h.

std::__allocator_traits_base::__cv_pointer = typename _Tp::const_void_pointer= [protected]=, = [inherited]= Definition at line 66 of file bits/alloc_traits.h.

typename _Tp::is_always_equal= [protected]=, = [inherited]= Definition at line 74 of file bits/alloc_traits.h.

typename _Tp::propagate_on_container_copy_assignment= [protected]=, = [inherited]= Definition at line 68 of file bits/alloc_traits.h.

typename _Tp::propagate_on_container_move_assignment= [protected]=, = [inherited]= Definition at line 70 of file bits/alloc_traits.h.

typename _Tp::propagate_on_container_swap= [protected]=, = [inherited]= Definition at line 72 of file bits/alloc_traits.h.

= typename _Tp::pointer= [protected]=, = [inherited]= Definition at line 60 of file bits/alloc_traits.h.

std::__allocator_traits_base::__v_pointer = typename _Tp::void_pointer= [protected]=, = [inherited]= Definition at line 64 of file bits/alloc_traits.h.

_Alloc >::*allocator_type* The allocator type.

Definition at line 89 of file bits/alloc_traits.h.

>::*const_pointer* = typename _Ptr<__c_pointer, const *value_type*>::type The allocator’s const pointer type. Alloc::const_pointer if that type exists, otherwise = pointer_traits<pointer>::rebind<const value_type> =

Definition at line 138 of file bits/alloc_traits.h.

>::*const_void_pointer* = typename _Ptr<__cv_pointer, const void>::type 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 154 of file bits/alloc_traits.h.

>::*difference_type* = typename _Diff<_Alloc, *pointer*>::type The allocator’s difference type. Alloc::difference_type if that type exists, otherwise = pointer_traits<pointer>::difference_type =

Definition at line 162 of file bits/alloc_traits.h.

>::*is_always_equal* = __detected_or_t<typename *is_empty*<_Alloc>::type, __equal, _Alloc> 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 205 of file bits/alloc_traits.h.

>::*pointer* = __detected_or_t<*value_type**, __pointer, _Alloc> The allocator’s pointer type. Alloc::pointer if that type exists, otherwise value_type*

Definition at line 98 of file bits/alloc_traits.h.

>::*propagate_on_container_copy_assignment* = __detected_or_t<*false_type*, __pocca, _Alloc> How the allocator is propagated on copy assignment. Alloc::propagate_on_container_copy_assignment if that type exists, otherwise false_type

Definition at line 178 of file bits/alloc_traits.h.

>::*propagate_on_container_move_assignment* = __detected_or_t<*false_type*, __pocma, _Alloc> How the allocator is propagated on move assignment. Alloc::propagate_on_container_move_assignment if that type exists, otherwise false_type

Definition at line 187 of file bits/alloc_traits.h.

>::*propagate_on_container_swap* = __detected_or_t<*false_type*, __pocs, _Alloc> How the allocator is propagated on swap. Alloc::propagate_on_container_swap if that type exists, otherwise false_type

Definition at line 196 of file bits/alloc_traits.h.

std::allocator_traits*< _Alloc >::rebind_alloc = __alloc_rebind<_Alloc, _Tp> Definition at line *209 of file bits/alloc_traits.h.

std::allocator_traits*< _Alloc >::*rebind_traits = allocator_traits*<rebind_alloc<_Tp> > Definition at line *211 of file bits/alloc_traits.h.

>::*size_type* = typename _Size<_Alloc, *difference_type*>::type The allocator’s size type. Alloc::size_type if that type exists, otherwise = make_unsigned<difference_type>::type =

Definition at line 170 of file bits/alloc_traits.h.

std::allocator_traits*< _Alloc >::*value_type The allocated type.

Definition at line 91 of file bits/alloc_traits.h.

>::*void_pointer* = typename _Ptr<__v_pointer, void>::type The allocator’s void pointer type. Alloc::void_pointer if that type exists, otherwise = pointer_traits<pointer>::rebind<void> =

Definition at line 146 of file bits/alloc_traits.h.

std::allocator_traits*< _Alloc >::allocate (_Alloc & __a, *size_type __n)= [inline]=, = [static]=, = [constexpr]= Allocate memory.

Parameters

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

Calls a.allocate(n)

Definition at line 313 of file bits/alloc_traits.h.

Referenced by std::__allocate_guarded().

std::allocator_traits*< _Alloc >::allocate (_Alloc & __a, *size_type __n, const_void_pointer __hint)= [inline]=, = [static]=, = [constexpr]= 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 328 of file bits/alloc_traits.h.

_Args> static constexpr auto *std::allocator_traits*< _Alloc >::construct (_Alloc & __a, _Tp * __p, _Args &&… __args) -> decltype(_S_construct(__a, __p, *std::forward*<_Args>(__args)…)) = [inline]=, = [static]=, = [constexpr]=, = [noexcept]=“

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 356 of file bits/alloc_traits.h.

std::allocator_traits*< _Alloc >::deallocate (_Alloc & __a, *pointer __p, size_type __n)= [inline]=, = [static]=, = [constexpr]= 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 340 of file bits/alloc_traits.h.

Referenced by std::__allocated_ptr< _Alloc >::~__allocated_ptr().

void *std::allocator_traits*< _Alloc >::destroy (_Alloc & __a, _Tp * __p)= [inline]=, = [static]=, = [constexpr]=, = [noexcept]= 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 372 of file bits/alloc_traits.h.

Referenced by std::_Destroy().

*std::allocator_traits*< _Alloc >::max_size (const _Alloc & __a)= [inline]=, = [static]=, = [constexpr]=, = [noexcept]= 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 385 of file bits/alloc_traits.h.

*std::allocator_traits*< _Alloc >::select_on_container_copy_construction (const _Alloc & __rhs)= [inline]=, = [static]=, = [constexpr]= 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 397 of file bits/alloc_traits.h.