std::pmr::new_delete_resource

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< cpp‎ | memory
Memory management library
(exposition only*)
Uninitialized memory algorithms
(C++17)
(C++17)
(C++17)
(C++20)
Constrained uninitialized
memory algorithms
(C++20)
C Library

Allocators
(C++11)
(C++11)
Memory resources
pmr::new_delete_resource
(C++17)
Garbage collection support
(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)
Uninitialized storage
(until C++20*)
(until C++20*)
(until C++20*)
Explicit lifetime management
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

Return value

Returns a pointer p to a static storage duration object of a type derived from std::pmr::memory_resource

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

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