__gnu_cxx::__alloc_traits<; _Alloc >(3) __gnu_cxx::__alloc_traits< _Alloc >(3)
NAME
__gnu_cxx::__alloc_traits< _Alloc > -
SYNOPSIS
Inherits std::allocator_traits< _Alloc >.
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
typedef __const_void_pointer const_void_pointer
typedef _Base_type::difference_type difference_type
typedef _Base_type::pointer pointer
typedef
__propagate_on_container_copy_assignment
propagate_on_container_copy_assignment"
typedef
__propagate_on_container_move_assignment
propagate_on_container_move_assignment"
typedef
__propagate_on_container_swap propagate_on_container_swap"
template<typename _Tp > using rebind_alloc = typename __alloctr_rebind<
_Alloc, _Tp >::__type
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
typedef __void_pointer void_pointer
Static Public Member Functions
static constexpr bool _S_always_equal ()
static constexpr bool _S_nothrow_move ()
static constexpr bool _S_nothrow_swap ()
static 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 _Alloc _S_select_on_copy (const _Alloc &__a)
static pointer allocate (_Alloc &__a, size_type __n)
static pointer allocate (_Alloc &__a, size_type __n, const_void_pointer
__hint)
template<typename _Ptr , typename... _Args> static std::enable_if
< __is_custom_pointer< _Ptr >
::value >::type construct (_Alloc &__a, _Ptr __p, _Args
&&...__args)"
template<typename _Tp , typename... _Args> static auto construct
(_Alloc &__a, _Tp *__p, _Args &&...__args) ->
decltype(_S_construct(__a, __p, std::forward< _Args >(__args)...))
static void deallocate (_Alloc &__a, pointer __p, size_type __n)
template<typename _Ptr > static std::enable_if
< __is_custom_pointer< _Ptr >
::value >::type destroy (_Alloc &__a, _Ptr __p)"
template<class _Tp > static void destroy (_Alloc &__a, _Tp *__p)
static size_type max_size (const _Alloc &__a)
static _Alloc select_on_container_copy_construction (const _Alloc
&__rhs)
Detailed Description
template<typename _Alloc>struct __gnu_cxx::__alloc_traits< _Alloc >
Uniform interface to C++98 and C++0x allocators.
Definition at line 121 of file ext/alloc_traits.h.
Member Typedef Documentation
template<typename _Alloc> typedef __const_void_pointer
std::allocator_traits< _Alloc >::const_void_pointer [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 140 of file bits/alloc_traits.h.
template<typename _Alloc> typedef __propagate_on_container_copy_assignment
std::allocator_traits< _Alloc >::propagate_on_container_copy_assignment
[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 174 of file bits/alloc_traits.h.
template<typename _Alloc> typedef __propagate_on_container_move_assignment
std::allocator_traits< _Alloc >::propagate_on_container_move_assignment
[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 186 of file bits/alloc_traits.h.
template<typename _Alloc> typedef __propagate_on_container_swap
std::allocator_traits< _Alloc >::propagate_on_container_swap
[inherited]
How the allocator is propagated on swap.
Alloc::propagate_on_container_swap if that type exists, otherwise
false_type
Definition at line 197 of file bits/alloc_traits.h.
template<typename _Alloc> typedef __void_pointer std::allocator_traits<
_Alloc >::void_pointer [inherited]
The allocator's void pointer type. Alloc::void_pointer if that type
exists, otherwise pointer_traits<pointer>::rebind<void>
Definition at line 129 of file bits/alloc_traits.h.
Member Function Documentation
template<typename _Alloc> static pointer std::allocator_traits< _Alloc
>::allocate (_Alloc &__a, size_type__n) [inline], [static],
[inherited]
Allocate memory.
Parameters:
__a An allocator.
__n The number of objects to allocate space for.
Calls a.allocate(n)
Definition at line 350 of file bits/alloc_traits.h.
template<typename _Alloc> static pointer std::allocator_traits< _Alloc
>::allocate (_Alloc &__a, size_type__n, const_void_pointer__hint)
[inline], [static], [inherited]
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 365 of file bits/alloc_traits.h.
template<typename _Alloc> template<typename _Tp , typename... _Args> static
auto std::allocator_traits< _Alloc >::construct (_Alloc &__a, _Tp *__p,
_Args &&...__args) -> decltype(_S_construct(__a, __p,
std::forward<_Args>(__args)...))
[inline], [static], [inherited]"
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 391 of file bits/alloc_traits.h.
template<typename _Alloc> static void std::allocator_traits< _Alloc
>::deallocate (_Alloc &__a, pointer__p, size_type__n) [inline],
[static], [inherited]
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 376 of file bits/alloc_traits.h.
template<typename _Alloc> template<class _Tp > static void
std::allocator_traits< _Alloc >::destroy (_Alloc &__a, _Tp *__p)
[inline], [static], [inherited]
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 404 of file bits/alloc_traits.h.
template<typename _Alloc> static size_type std::allocator_traits< _Alloc
>::max_size (const _Alloc &__a) [inline], [static], [inherited]
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 415 of file bits/alloc_traits.h.
Referenced by std::forward_list< _Tp, _Alloc >::max_size().
template<typename _Alloc> static _Alloc std::allocator_traits< _Alloc
>::select_on_container_copy_construction (const _Alloc &__rhs)
[inline], [static], [inherited]
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 427 of file bits/alloc_traits.h.
Author
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