std::allocator - Man Page

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

Synopsis

#include <memory>

Inherits std::__new_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

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 124 of file memory.

Member Typedef Documentation

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

Definition at line 129 of file memory.

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

Definition at line 148 of file memory.

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

Definition at line 146 of file memory.

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

Definition at line 128 of file memory.

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

Definition at line 127 of file memory.

Constructor & Destructor Documentation

template<typename _Tp > constexpr std::allocator< _Tp >::allocator () [inline], [constexpr], [noexcept]

Definition at line 156 of file memory.

template<typename _Tp > constexpr std::allocator< _Tp >::allocator (const allocator< _Tp > & __a) [inline], [constexpr], [noexcept]

Definition at line 159 of file memory.

template<typename _Tp > template<typename _Tp1 > constexpr std::allocator< _Tp >::allocator (const allocator< _Tp1 > &) [inline], [constexpr], [noexcept]

Definition at line 169 of file memory.

template<typename _Tp > constexpr std::allocator< _Tp >::~allocator () [inline], [constexpr], [noexcept]

Definition at line 174 of file memory.

Member Function Documentation

template<typename _Tp > constexpr _Tp * std::allocator< _Tp >::allocate (size_t __n) [inline], [constexpr]

Definition at line 179 of file memory.

template<typename _Tp > _Tp * std::__new_allocator< _Tp >::allocate (size_type __n, const void * = static_cast<const void*>(0)) [inline], [inherited]

Definition at line 112 of file bits/new_memory.

template<typename _Tp > constexpr void std::allocator< _Tp >::deallocate (_Tp * __p, size_t __n) [inline], [constexpr]

Definition at line 193 of file memory.

Author

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Info

Mon Nov 21 2022 libstdc++