__gnu_cxx::__alloc_traits< _Alloc, typename >(3)

NAME
__gnu_cxx::__alloc_traits< _Alloc, typename > - Uniform interface to C++98 and C++11 allocators.

SYNOPSIS

#include <alloc_traits.h>

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
using const_void_pointer = typename _Ptr< __cv_pointer, const void >::type
The allocator's const void pointer type.
typedef _Base_type::difference_type 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.
typedef _Base_type::pointer pointer
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 > >
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
The allocator's void pointer 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)
Allocate memory.
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.
static constexpr pointer allocate (_Alloc &__a, size_type __n, const_void_pointer __hint)
Allocate memory.
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> 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.
static constexpr void deallocate (_Alloc &__a, pointer __p, size_type __n)
Deallocate memory.
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(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.

  Protected Types
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

Detailed Description

  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 48 of file ext/alloc_traits.h.

Member Typedef Documentation

  template<typename _Tp > using std::__allocator_traits_base::__c_pointer = typename _Tp::const_pointer [protected], [inherited]

Definition at line 62 of file bits/alloc_traits.h.

  template<typename _Tp > using std::__allocator_traits_base::__cv_pointer = typename _Tp::const_void_pointer [protected], [inherited]

Definition at line 66 of file bits/alloc_traits.h.

  template<typename _Tp > using std::__allocator_traits_base::__equal = typename _Tp::is_always_equal [protected], [inherited]

Definition at line 74 of file bits/alloc_traits.h.

  template<typename _Tp > using std::__allocator_traits_base::__pocca = typename _Tp::propagate_on_container_copy_assignment [protected], [inherited]

Definition at line 68 of file bits/alloc_traits.h.

  template<typename _Tp > using std::__allocator_traits_base::__pocma = typename _Tp::propagate_on_container_move_assignment [protected], [inherited]

Definition at line 70 of file bits/alloc_traits.h.

  template<typename _Tp > using std::__allocator_traits_base::__pocs = typename _Tp::propagate_on_container_swap [protected], [inherited]

Definition at line 72 of file bits/alloc_traits.h.

  template<typename _Tp > using std::__allocator_traits_base::__pointer = typename _Tp::pointer [protected], [inherited]

Definition at line 60 of file bits/alloc_traits.h.

  template<typename _Tp > using std::__allocator_traits_base::__v_pointer = typename _Tp::void_pointer [protected], [inherited]

Definition at line 64 of file bits/alloc_traits.h.

  template<typename _Alloc , typename = typename _Alloc::value_type> typedef std::allocator_traits<_Alloc> __gnu_cxx::__alloc_traits< _Alloc, typename >::_Base_type

Definition at line 55 of file ext/alloc_traits.h.

  template<typename _Alloc , typename = typename _Alloc::value_type> typedef _Alloc __gnu_cxx::__alloc_traits< _Alloc, typename >::allocator_type

Definition at line 53 of file ext/alloc_traits.h.

  template<typename _Alloc , typename = typename _Alloc::value_type> typedef _Base_type::const_pointer __gnu_cxx::__alloc_traits< _Alloc, typename >::const_pointer

Definition at line 58 of file ext/alloc_traits.h.

  template<typename _Alloc , typename = typename _Alloc::value_type> typedef const value_type& __gnu_cxx::__alloc_traits< _Alloc, typename >::const_reference

Definition at line 63 of file ext/alloc_traits.h.

  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 154 of file bits/alloc_traits.h.

  template<typename _Alloc , typename = typename _Alloc::value_type> typedef _Base_type::difference_type __gnu_cxx::__alloc_traits< _Alloc, typename >::difference_type

Definition at line 60 of file ext/alloc_traits.h.

  template<typename _Alloc > using std::allocator_traits< _Alloc >::is_always_equal = __detected_or_t<typename is_empty<_Alloc>::type, __equal, _Alloc> [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 205 of file bits/alloc_traits.h.

  template<typename _Alloc , typename = typename _Alloc::value_type> typedef _Base_type::pointer __gnu_cxx::__alloc_traits< _Alloc, typename >::pointer

Definition at line 57 of file ext/alloc_traits.h.

  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 178 of file bits/alloc_traits.h.

  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 187 of file bits/alloc_traits.h.

  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 196 of file bits/alloc_traits.h.

  template<typename _Alloc > template<typename _Tp > using std::allocator_traits< _Alloc >::rebind_alloc = __alloc_rebind<_Alloc, _Tp> [inherited]

Definition at line 209 of file bits/alloc_traits.h.

  template<typename _Alloc > template<typename _Tp > using std::allocator_traits< _Alloc >::rebind_traits = allocator_traits<rebind_alloc<_Tp> > [inherited]

Definition at line 211 of file bits/alloc_traits.h.

  template<typename _Alloc , typename = typename _Alloc::value_type> typedef value_type& __gnu_cxx::__alloc_traits< _Alloc, typename >::reference

Definition at line 62 of file ext/alloc_traits.h.

  template<typename _Alloc , typename = typename _Alloc::value_type> typedef _Base_type::size_type __gnu_cxx::__alloc_traits< _Alloc, typename >::size_type

Definition at line 59 of file ext/alloc_traits.h.

  template<typename _Alloc , typename = typename _Alloc::value_type> typedef _Base_type::value_type __gnu_cxx::__alloc_traits< _Alloc, typename >::value_type

Definition at line 56 of file ext/alloc_traits.h.

  template<typename _Alloc > using std::allocator_traits< _Alloc >::void_pointer = typename _Ptr<__v_pointer, void>::type [inherited]

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.

Member Function Documentation

  template<typename _Alloc , typename = typename _Alloc::value_type> static constexpr bool __gnu_cxx::__alloc_traits< _Alloc, typename >::_S_always_equal () [inline], [static], [constexpr]

Definition at line 112 of file ext/alloc_traits.h.

  template<typename _Alloc , typename = typename _Alloc::value_type> static constexpr bool __gnu_cxx::__alloc_traits< _Alloc, typename >::_S_nothrow_move () [inline], [static], [constexpr]

Definition at line 115 of file ext/alloc_traits.h.

  template<typename _Alloc , typename = typename _Alloc::value_type> static constexpr void __gnu_cxx::__alloc_traits< _Alloc, typename >::_S_on_swap (_Alloc & __a, _Alloc & __b) [inline], [static], [constexpr]

Definition at line 100 of file ext/alloc_traits.h.

  template<typename _Alloc , typename = typename _Alloc::value_type> static constexpr bool __gnu_cxx::__alloc_traits< _Alloc, typename >::_S_propagate_on_copy_assign () [inline], [static], [constexpr]

Definition at line 103 of file ext/alloc_traits.h.

  template<typename _Alloc , typename = typename _Alloc::value_type> static constexpr bool __gnu_cxx::__alloc_traits< _Alloc, typename >::_S_propagate_on_move_assign () [inline], [static], [constexpr]

Definition at line 106 of file ext/alloc_traits.h.

  template<typename _Alloc , typename = typename _Alloc::value_type> static constexpr bool __gnu_cxx::__alloc_traits< _Alloc, typename >::_S_propagate_on_swap () [inline], [static], [constexpr]

Definition at line 109 of file ext/alloc_traits.h.

  template<typename _Alloc , typename = typename _Alloc::value_type> static constexpr _Alloc __gnu_cxx::__alloc_traits< _Alloc, typename >::_S_select_on_copy (const _Alloc & __a) [inline], [static], [constexpr]

Definition at line 97 of file ext/alloc_traits.h.

  template<typename _Alloc > static constexpr pointer std::allocator_traits< _Alloc >::allocate (_Alloc & __a, size_type __n) [inline], [static], [constexpr], [inherited]

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().

  template<typename _Alloc , typename = typename _Alloc::value_type> static constexpr pointer 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.

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

  template<typename _Alloc , typename = typename _Alloc::value_type> static constexpr pointer 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.

  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) [inline], [static], [constexpr], [noexcept]

Definition at line 81 of file ext/alloc_traits.h.

  template<typename _Alloc , typename = typename _Alloc::value_type> template<typename _Tp , typename... _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.

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

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

  template<typename _Alloc , typename = typename _Alloc::value_type> static constexpr void 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.

  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) [inline], [static], [constexpr], [noexcept]

Definition at line 93 of file ext/alloc_traits.h.

  template<typename _Alloc , typename = typename _Alloc::value_type> template<typename _Tp > static constexpr 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.

  template<typename _Alloc , typename = typename _Alloc::value_type> static constexpr size_type 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.

Referenced by std::forward_list< _Tp, _Alloc >::max_size(), and std::list< _Tp, _Alloc >::max_size().

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

Author

Generated automatically by Doxygen for libstdc++ from the source code.