libstdc++: __gnu_cxx::__alloc_traits< _Alloc, typename > Struct Template Reference (original) (raw)
#include <[alloc_traits.h](a17891%5Fsource.html)>
| Public Types | |
|---|---|
| typedef std::allocator_traits< _Alloc > | _Base_type |
| typedef _Alloc | allocator_type |
| typedef _Base_type::const_pointer | const_pointer |
| typedef const value_type & | const_reference |
| using | const_void_pointer = typename _Ptr< __cv_pointer, const void >::type |
| typedef _Base_type::difference_type | difference_type |
| using | is_always_equal = typename __detected_or_t< is_empty< _Alloc >, __equal, _Alloc >::type |
| typedef _Base_type::pointer | pointer |
| using | propagate_on_container_copy_assignment = __detected_or_t< false_type, __pocca, _Alloc > |
| using | propagate_on_container_move_assignment = __detected_or_t< false_type, __pocma, _Alloc > |
| using | propagate_on_container_swap = __detected_or_t< false_type, __pocs, _Alloc > |
| template<typename _Tp > | |
| using | rebind_alloc = __alloc_rebind< _Alloc, _Tp > |
| template<typename _Tp > | |
| using | rebind_traits = allocator_traits< rebind_alloc< _Tp > > |
| typedef value_type & | reference |
| typedef _Base_type::size_type | size_type |
| typedef _Base_type::value_type | value_type |
| using | void_pointer = typename _Ptr< __v_pointer, void >::type |
| Static Public Member Functions | |
|---|---|
| static constexpr bool | _S_always_equal () |
| static constexpr bool | _S_nothrow_move () |
| static constexpr void | _S_on_swap (_Alloc &__a, _Alloc &__b) |
| static constexpr bool | _S_propagate_on_copy_assign () |
| static constexpr bool | _S_propagate_on_move_assign () |
| static constexpr bool | _S_propagate_on_swap () |
| static constexpr _Alloc | _S_select_on_copy (const _Alloc &__a) |
| static constexpr pointer | allocate (_Alloc &__a, size_type __n) |
| static constexpr pointer | allocate (_Alloc &__a, size_type __n) |
| static constexpr pointer | allocate (_Alloc &__a, size_type __n, const_void_pointer __hint) |
| static constexpr pointer | allocate (_Alloc &__a, size_type __n, const_void_pointer __hint) |
| template<typename _Ptr , typename... _Args> | |
| static constexpr std::__enable_if_t< __is_custom_pointer< _Ptr >::value > | construct (_Alloc &__a, _Ptr __p, _Args &&... __args) noexcept(noexcept(_Base_type::construct(__a, std::__to_address(__p), std::forward< _Args >(__args)...))) |
| template<typename _Tp , typename... _Args> requires __can_construct<_Alloc, _Tp, _Args...> | |
| static constexpr void | construct (_Alloc &__a, _Tp *__p, _Args &&... __args) noexcept(_S_nothrow_construct< _Tp, _Args... >()) |
| static constexpr void | deallocate (_Alloc &__a, pointer __p, size_type __n) |
| static constexpr void | deallocate (_Alloc &__a, pointer __p, size_type __n) |
| template<typename _Ptr > | |
| static constexpr std::__enable_if_t< __is_custom_pointer< _Ptr >::value > | destroy (_Alloc &__a, _Ptr __p) noexcept(noexcept(_Base_type::destroy(__a, std::__to_address(__p)))) |
| template<typename _Tp > | |
| static constexpr void | destroy (_Alloc &__a, _Tp *__p) noexcept(_S_nothrow_destroy< _Tp >()) |
| static constexpr size_type | max_size (const _Alloc &__a) noexcept |
| static constexpr _Alloc | select_on_container_copy_construction (const _Alloc &__rhs) |
template<typename _Alloc, typename = typename _Alloc::value_type>
struct __gnu_cxx::__alloc_traits< _Alloc, typename >
Uniform interface to C++98 and C++11 allocators.
Definition at line 45 of file ext/alloc_traits.h.
◆ _Base_type
template<typename _Alloc , typename = typename _Alloc::value_type>
◆ allocator_type
template<typename _Alloc , typename = typename _Alloc::value_type>
◆ const_pointer
template<typename _Alloc , typename = typename _Alloc::value_type>
◆ const_reference
template<typename _Alloc , typename = typename _Alloc::value_type>
◆ const_void_pointer
template<typename _Alloc >
| using std::allocator_traits< _Alloc >::const_void_pointer = typename _Ptr<__cv_pointer, const void>::type | inherited |
|---|
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 317 of file bits/alloc_traits.h.
◆ difference_type
template<typename _Alloc , typename = typename _Alloc::value_type>
◆ is_always_equal
template<typename _Alloc >
| using std::allocator_traits< _Alloc >::is_always_equal = typename __detected_or_t<is_empty<_Alloc>, __equal, _Alloc>::type | inherited |
|---|
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 368 of file bits/alloc_traits.h.
◆ pointer
template<typename _Alloc , typename = typename _Alloc::value_type>
◆ propagate_on_container_copy_assignment
template<typename _Alloc >
| using std::allocator_traits< _Alloc >::propagate_on_container_copy_assignment = __detected_or_t<false_type, __pocca, _Alloc> | inherited |
|---|
How the allocator is propagated on copy assignment.
Alloc::propagate_on_container_copy_assignment if that type exists, otherwise false_type
Definition at line 341 of file bits/alloc_traits.h.
◆ propagate_on_container_move_assignment
template<typename _Alloc >
| using std::allocator_traits< _Alloc >::propagate_on_container_move_assignment = __detected_or_t<false_type, __pocma, _Alloc> | inherited |
|---|
How the allocator is propagated on move assignment.
Alloc::propagate_on_container_move_assignment if that type exists, otherwise false_type
Definition at line 350 of file bits/alloc_traits.h.
◆ propagate_on_container_swap
template<typename _Alloc >
| using std::allocator_traits< _Alloc >::propagate_on_container_swap = __detected_or_t<false_type, __pocs, _Alloc> | inherited |
|---|
How the allocator is propagated on swap.
Alloc::propagate_on_container_swap if that type exists, otherwise false_type
Definition at line 359 of file bits/alloc_traits.h.
◆ rebind_alloc
template<typename _Alloc >
template<typename _Tp >
◆ rebind_traits
template<typename _Alloc >
template<typename _Tp >
template<typename _Alloc , typename = typename _Alloc::value_type>
◆ size_type
template<typename _Alloc , typename = typename _Alloc::value_type>
◆ value_type
template<typename _Alloc , typename = typename _Alloc::value_type>
◆ void_pointer
template<typename _Alloc >
The allocator's void pointer type.
Alloc::void_pointer if that type exists, otherwise pointer_traits<pointer>::rebind<void>
Definition at line 309 of file bits/alloc_traits.h.
◆ _S_always_equal()
template<typename _Alloc , typename = typename _Alloc::value_type>
◆ _S_nothrow_move()
template<typename _Alloc , typename = typename _Alloc::value_type>
◆ _S_on_swap()
template<typename _Alloc , typename = typename _Alloc::value_type>
| static constexpr void __gnu_cxx::__alloc_traits< _Alloc, typename >::_S_on_swap ( _Alloc & __a, _Alloc & __b ) | inlinestaticconstexpr |
|---|
◆ _S_propagate_on_copy_assign()
template<typename _Alloc , typename = typename _Alloc::value_type>
◆ _S_propagate_on_move_assign()
template<typename _Alloc , typename = typename _Alloc::value_type>
◆ _S_propagate_on_swap()
template<typename _Alloc , typename = typename _Alloc::value_type>
◆ _S_select_on_copy()
template<typename _Alloc , typename = typename _Alloc::value_type>
| static constexpr _Alloc __gnu_cxx::__alloc_traits< _Alloc, typename >::_S_select_on_copy ( const _Alloc & __a) | inlinestaticconstexpr |
|---|
◆ allocate() [1/4]
template<typename _Alloc >
Allocate memory.
Parameters
| __a | An allocator. |
|---|---|
| __n | The number of objects to allocate space for. |
Calls a.allocate(n)
Definition at line 384 of file bits/alloc_traits.h.
◆ allocate() [2/4]
template<typename _Alloc , typename = typename _Alloc::value_type>
| static constexpr pointer std::allocator_traits< _Alloc >::allocate ( _Alloc & __a, size_type __n ) | inlinestaticconstexpr |
|---|
Allocate memory.
Parameters
| __a | An allocator. |
|---|---|
| __n | The number of objects to allocate space for. |
Calls a.allocate(n)
Definition at line 384 of file bits/alloc_traits.h.
◆ allocate() [3/4]
template<typename _Alloc >
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 399 of file bits/alloc_traits.h.
◆ allocate() [4/4]
template<typename _Alloc , typename = typename _Alloc::value_type>
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 399 of file bits/alloc_traits.h.
◆ construct() [1/2]
template<typename _Alloc , typename = typename _Alloc::value_type>
template<typename _Ptr , typename... _Args>
| static constexpr std::__enable_if_t< __is_custom_pointer< _Ptr >::value > __gnu_cxx::__alloc_traits< _Alloc, typename >::construct ( _Alloc & __a, _Ptr __p, _Args &&... __args ) | inlinestaticconstexprnoexcept |
|---|
◆ construct() [2/2]
template<typename _Alloc , typename = typename _Alloc::value_type>
template<typename _Tp , typename... _Args>
requires __can_construct<_Alloc, _Tp, _Args...>
| static constexpr void std::allocator_traits< _Alloc >::construct ( _Alloc & __a, _Tp * __p, _Args &&... __args ) | inlinestaticconstexprnoexcept |
|---|
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 437 of file bits/alloc_traits.h.
◆ deallocate() [1/2]
template<typename _Alloc >
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 416 of file bits/alloc_traits.h.
◆ deallocate() [2/2]
template<typename _Alloc , typename = typename _Alloc::value_type>
| static constexpr void std::allocator_traits< _Alloc >::deallocate ( _Alloc & __a, pointer __p, size_type __n ) | inlinestaticconstexpr |
|---|
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 416 of file bits/alloc_traits.h.
◆ destroy() [1/2]
template<typename _Alloc , typename = typename _Alloc::value_type>
template<typename _Ptr >
| static constexpr std::__enable_if_t< __is_custom_pointer< _Ptr >::value > __gnu_cxx::__alloc_traits< _Alloc, typename >::destroy ( _Alloc & __a, _Ptr __p ) | inlinestaticconstexprnoexcept |
|---|
◆ destroy() [2/2]
template<typename _Alloc , typename = typename _Alloc::value_type>
template<typename _Tp >
| static constexpr void std::allocator_traits< _Alloc >::destroy ( _Alloc & __a, _Tp * __p ) | inlinestaticconstexprnoexcept |
|---|
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 456 of file bits/alloc_traits.h.
◆ max_size()
template<typename _Alloc , typename = typename _Alloc::value_type>
| static constexpr size_type std::allocator_traits< _Alloc >::max_size ( const _Alloc & __a) | inlinestaticconstexprnoexcept |
|---|
◆ select_on_container_copy_construction()
template<typename _Alloc >
| static constexpr _Alloc std::allocator_traits< _Alloc >::select_on_container_copy_construction ( const _Alloc & __rhs) | inlinestaticconstexprinherited |
|---|
Obtain an allocator to use when copying a container.
Parameters
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 494 of file bits/alloc_traits.h.
The documentation for this struct was generated from the following file: