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std::pmr:: new_delete_resource

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C++
Memory management library
( exposition only* )
Allocators
Uninitialized memory algorithms
Constrained uninitialized memory algorithms
Memory resources
Uninitialized storage (until C++20)
( until C++20* )
( until C++20* )
( until C++20* )

Garbage collector support (until C++23)
(C++11) (until C++23)
(C++11) (until C++23)
(C++11) (until C++23)
(C++11) (until C++23)
(C++11) (until C++23)
(C++11) (until C++23)
Defined in header <memory_resource>
std:: pmr :: memory_resource * new_delete_resource ( ) noexcept ;
(since C++17)

Returns a pointer to a memory_resource that uses the global operator new and operator delete to allocate memory.

Return value

Returns a pointer p to a static storage duration object of a type derived from std::pmr::memory_resource , with the following properties:

  • its allocate() function uses :: operator new to allocate memory;
  • its deallocate() function uses :: operator delete to deallocate memory;
  • for any memory_resource r , p - > is_equal ( r ) returns & r == p .

The same value is returned every time this function is called.