std::pmr:: memory_resource

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uninitialized_copy
uninitialized_fill
uninitialized_move (C++17)
uninitialized_default_construct (C++17)
uninitialized_value_construct (C++17)
destroy (C++17)
destroy_at (C++17)
voidify (C++20)

uninitialized_copy_n (C++11)
uninitialized_fill_n
uninitialized_move_n (C++17)
uninitialized_default_construct_n (C++17)
uninitialized_value_construct_n (C++17)
destroy_n (C++17)
construct_at (C++20)

Constrained uninitialized memory algorithms

ranges::uninitialized_copy (C++20)
ranges::uninitialized_fill (C++20)
ranges::uninitialized_move (C++20)
ranges::construct_at (C++20)
ranges::destroy (C++20)
ranges::destroy_n (C++20)
ranges::destroy_at (C++20)

ranges::uninitialized_copy_n (C++20)
ranges::uninitialized_fill_n (C++20)
ranges::uninitialized_move_n (C++20)
ranges::uninitialized_default_construct (C++20)
ranges::uninitialized_value_construct (C++20)
ranges::uninitialized_default_construct_n (C++20)
ranges::uninitialized_value_construct_n (C++20)

Allocators

allocator
allocator_traits (C++11)
allocation_result (C++23)
allocator_arg (C++11)
uses_allocator (C++11)

uses_allocator_construction_args (C++20)
make_obj_using_allocator (C++20)
uninitialized_construct_using_allocator (C++20)
scoped_allocator_adaptor (C++11)
pmr::polymorphic_allocator (C++17)

Memory resources
pmr::memory_resource (C++17)
pmr::get_default_resource (C++17)
pmr::set_default_resource (C++17)
pmr::new_delete_resource (C++17)
pmr::null_memory_resource (C++17)
pmr::synchronized_pool_resource (C++17)
pmr::unsynchronized_pool_resource (C++17)
pmr::monotonic_buffer_resource (C++17)
pmr::pool_options (C++17)

Garbage collection support
declare_reachable (C++11) (until C++23)
undeclare_reachable (C++11) (until C++23)
declare_no_pointers (C++11) (until C++23)
undeclare_no_pointers (C++11) (until C++23)
pointer_safety (C++11) (until C++23)
get_pointer_safety (C++11) (until C++23)

Uninitialized storage
raw_storage_iterator ( until C++20* )
get_temporary_buffer ( until C++20* )
return_temporary_buffer ( until C++20* )

Explicit lifetime management
start_lifetime_as start_lifetime_as_array (C++23) (C++23)

Smart pointers

unique_ptr

(C++11)

shared_ptr

(C++11)

weak_ptr

(C++11)

auto_ptr

( until C++17* )

owner_less

(C++11)

owner_less<void>

(C++17)

owner_hash

(C++26)

owner_equal

(C++26)

enable_shared_from_this

(C++11)

bad_weak_ptr

(C++11)

default_delete

(C++11)

out_ptr_t

(C++23)

inout_ptr_t

(C++23)

Low level memory
management

operator new

operator new[]

operator delete

operator delete[]

get_new_handler

(C++11)

set_new_handler

launder

(C++17)

bad_alloc

bad_array_new_length

(C++11)

nothrow_t

align_val_t

(C++17)

destroying_delete_t

(C++20)

new_handler

nothrow

Miscellaneous

pointer_traits

(C++11)

to_address

(C++20)

addressof

(C++11)

align

(C++11)

assume_aligned

(C++20)

C Library

malloc
calloc
realloc

aligned_alloc (C++17)
free

Defined in header `<memory_resource>`
class memory_resource ;		(since C++17)

The class std::pmr::memory_resource is an abstract interface to an unbounded set of classes encapsulating memory resources.

Member functions

(constructor) (implicitly declared)	constructs a new `memory_resource` (public member function)
(destructor) [virtual]	destructs a `memory_resource` (virtual public member function)
operator= (implicitly declared)	Implicitly declared copy assignment operator (public member function)
Public member functions
allocate	allocates memory (public member function)
deallocate	deallocates memory (public member function)
is_equal	compare for equality with another `memory_resource` (public member function)
Private member functions
do_allocate [virtual]	allocates memory (virtual private member function)
do_deallocate [virtual]	deallocates memory (virtual private member function)
do_is_equal [virtual]	compare for equality with another `memory_resource` (virtual private member function)

Non-member-functions

operator== operator!=

(removed in C++20)

compare two


          memory_resource

s
(function)

Notes

Feature-test macro	Value	Std	Feature
`__cpp_lib_memory_resource`	201603L	(C++17)	`std::pmr::memory_resource`

Retrieved from " https://en.cppreference.com/mwiki/index.php?title=cpp/memory/memory_resource&oldid=155180 "

Compiler support
Freestanding and hosted
Language
Standard library
Standard library headers
Named requirements
Feature test macros (C++20)
Language support library
Concepts library (C++20)
Metaprogramming library (C++11)
Diagnostics library
General utilities library
Strings library
Containers library
Iterators library
Ranges library (C++20)
Algorithms library
Numerics library
Localizations library
Input/output library
Filesystem library (C++17)
Regular expressions library (C++11)
Concurrency support library (C++11)
Execution support library (C++26)
Technical specifications
Symbols index
External libraries

memory_resource::memory_resource
Public member functions
memory_resource::allocate
memory_resource::deallocate
memory_resource::is_equal
Private member functions
memory_resource::do_allocate
memory_resource::do_deallocate
memory_resource::do_is_equal
Non-member functions
operator== operator!= (until C++20)

std::pmr:: memory_resource

Member functions

Public member functions

Private member functions

Non-member-functions

Notes

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