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__gnu_cxx::__alloc_traits< _Alloc >(3cxx) __gnu_cxx::__alloc_traits< _Alloc >(3cxx)

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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Fri Dec 19 2014 libstdc++