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
using	propagate_on_container_move_assignment
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
_Tp *	allocate (size_type __n, const void *=static_cast< const void * >(0))
constexpr _Tp *	allocate (size_t __n)
constexpr void	deallocate (_Tp *__p, size_t __n)
allocator &	operator= (const allocator &)=default

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

Related Symbols
(Note that these are not member symbols.)
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 133 of file allocator.h.

Member Typedef Documentation

difference_type

template<typename _Tp>

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

Definition at line 138 of file allocator.h.

is_always_equal

template<typename _Tp>

using std::allocator< _Tp >::is_always_equal

Definition at line 158 of file allocator.h.

propagate_on_container_move_assignment

template<typename _Tp>

using std::allocator< _Tp >::propagate_on_container_move_assignment

Definition at line 155 of file allocator.h.

size_type

template<typename _Tp>

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

Definition at line 137 of file allocator.h.

value_type

template<typename _Tp>

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

Definition at line 136 of file allocator.h.

Constructor & Destructor Documentation

allocator() [1/3]

template<typename _Tp>

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

inlineconstexprnoexcept

Definition at line 166 of file allocator.h.

allocator() [2/3]

template<typename _Tp>

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

inlineconstexprnoexcept

Definition at line 170 of file allocator.h.

allocator() [3/3]

template<typename _Tp>

template<typename _Tp1>

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

inlineconstexprnoexcept

Definition at line 181 of file allocator.h.

~allocator()

template<typename _Tp>

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

inlineconstexprnoexcept

Definition at line 187 of file allocator.h.

Member Function Documentation

allocate() [1/2]

template<typename _Tp>

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

inlinenodiscardinherited

Definition at line 126 of file bits/new_allocator.h.

allocate() [2/2]

template<typename _Tp>

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

inlinenodiscardconstexpr

Definition at line 192 of file allocator.h.

deallocate()

template<typename _Tp>

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

inlineconstexpr

Definition at line 206 of file allocator.h.

Friends And Related Symbol Documentation

operator==

template<typename _Tp>

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

friend

Definition at line 219 of file allocator.h.

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

• allocator.h