Polymorphic allocator library

 

C++

Language

Standard library headers

Concepts

Utilities library

Strings library

Containers library

Algorithms library

Iterators library

Numerics library

Input/output library

Localizations library

Regular expressions library (C++11)

Atomic operations library (C++11)

Thread support library (C++11)

 

Experimental libraries

Experimental standard libraries

optional (library fundamentals TS)

any (library fundamentals TS)

basic_string_view (library fundamentals TS)

Polymorphic allocator library (library fundamentals TS)

Filesystem library (filesystem TS)

 

Polymorphic allocator library

Classes

memory_resource

polymorphic_allocator

resource_adaptor

synchronized_pool_resourceunsynchronized_pool_resource

 

The C++ Extensions for Library Fundamentals includes classes for providing allocator type erasure and runtime polymorphism.

std::experimental::pmr::memory_resource

The memory_resource class is an abstract interface for classes that encapsulate memory resources.

The library provides the following concrete classes:

Defined in header <experimental/memory_resource>
Class	Description
std::experimental::pmr::synchronized_pool_resource std::experimental::pmr::unsynchronized_pool_resource	Pool resources are a type of memory_resource for managing allocations in pools of different block sizes. The library provides both a thread-safe and unsafe pool resource.
std::experimental::pmr::monotonic_buffer_resource	A special-purpose memory_resource intended for very fast memory allocations in situations where memory is used to build up a few objects and then is released all at once when the buffer is destroyed.

std::experimental::pmr::polymorphic_allocator

Using a specialization of the class template pmr::polymorphic_allocator with an allocator-aware class allows allocators to be used polymorphically at run time.

std::experimental::pmr::resource_adaptor

The template alias resource_adaptor wraps a memory_resource interface around an allocator.