std::allocator< _Tp > Class Template Reference

#include <memory>

Inheritance diagram for std::allocator< _Tp >:

Public Types
typedef ptrdiff_t	difference_type
using	is_always_equal = true_type
using	propagate_on_container_move_assignment = true_type
typedef size_t	size_type
typedef _Tp	value_type

Public Member Functions
constexpr	allocator (const allocator &__a) noexcept
template<typename _Tp1 >
constexpr	allocator (const allocator< _Tp1 > &) noexcept
constexpr _Tp *	allocate (size_t __n)
_Tp *	allocate (size_type __n, const void *=static_cast< const void * >(0))
constexpr void	deallocate (_Tp *__p, size_t __n)
allocator &	operator= (const allocator &)=default

Friends
constexpr bool	operator== (const allocator &, const allocator &) noexcept

Related Functions
(Note that these are not member functions.)
template<typename _T1 , typename _T2 >
constexpr bool	operator== (const allocator< _T1 > &, const allocator< _T2 > &) noexcept

Detailed Description

template<typename _Tp>
class std::allocator< _Tp >

The standard allocator, as per C++03 [20.4.1].

See https://gcc.gnu.org/onlinedocs/libstdc++/manual/memory.html#std.util.memory.allocator for further details.

Template Parameters

_Tp	Type of allocated object.

Definition at line 130 of file allocator.h.

Member Typedef Documentation

difference_type

template<typename _Tp >

typedef ptrdiff_t std::allocator< _Tp >::difference_type

Definition at line 135 of file allocator.h.

is_always_equal

template<typename _Tp >

using std::allocator< _Tp >::is_always_equal = true_type

Definition at line 154 of file allocator.h.

propagate_on_container_move_assignment

template<typename _Tp >

using std::allocator< _Tp >::propagate_on_container_move_assignment = true_type

Definition at line 152 of file allocator.h.

size_type

template<typename _Tp >

typedef size_t std::allocator< _Tp >::size_type

Definition at line 134 of file allocator.h.

value_type

template<typename _Tp >

typedef _Tp std::allocator< _Tp >::value_type

Definition at line 133 of file allocator.h.

Constructor & Destructor Documentation

allocator() [1/3]

template<typename _Tp >

constexpr std::allocator< _Tp >::allocator ( )

inlineconstexprnoexcept

Definition at line 163 of file allocator.h.

allocator() [2/3]

template<typename _Tp >

constexpr std::allocator< _Tp >::allocator ( const allocator< _Tp > &  __a )

inlineconstexprnoexcept

Definition at line 167 of file allocator.h.

allocator() [3/3]

template<typename _Tp >

template<typename _Tp1 >

constexpr std::allocator< _Tp >::allocator ( const allocator< _Tp1 > &  )

inlineconstexprnoexcept

Definition at line 178 of file allocator.h.

~allocator()

template<typename _Tp >

constexpr std::allocator< _Tp >::~allocator ( )

inlineconstexprnoexcept

Definition at line 184 of file allocator.h.

Member Function Documentation

allocate() [1/2]

template<typename _Tp >

constexpr _Tp * std::allocator< _Tp >::allocate ( size_t  __n )

inlineconstexpr

Definition at line 189 of file allocator.h.

allocate() [2/2]

template<typename _Tp >

_Tp * std::__new_allocator< _Tp >::allocate ( size_type  __n, const void *  = static_cast<const void*>(0)  )

inlineinherited

Definition at line 122 of file bits/new_allocator.h.

deallocate()

template<typename _Tp >

constexpr void std::allocator< _Tp >::deallocate ( _Tp *  __p, size_t  __n  )

inlineconstexpr

Definition at line 203 of file allocator.h.

Friends And Related Function Documentation

operator==

template<typename _Tp >

constexpr bool operator== ( const allocator< _Tp > &  , const allocator< _Tp > &    )

friend

Definition at line 216 of file allocator.h.

---

The documentation for this class was generated from the following file:

• allocator.h