std::shared_mutex:: native_handle

From cppreference.com

Concurrency support library
Threads
(C++11)
(C++20)
this_thread namespace
(C++11)
(C++11)
Cooperative cancellation
Mutual exclusion
Generic lock management
Condition variables
(C++11)
Semaphores
Latches and Barriers
(C++20)
(C++20)
Futures
(C++11)
(C++11)
(C++11)
Safe Reclamation
Hazard Pointers
Atomic types
(C++11)
(C++20)
Initialization of atomic types
(C++11) (deprecated in C++20)
(C++11) (deprecated in C++20)
Memory ordering
Free functions for atomic operations
Free functions for atomic flags
native_handle_type native_handle ( ) ;
(since C++17)
(not always present)

Returns the underlying implementation-defined native handle object.

Parameters

(none)

Return value

Implementation-defined native handle object.

Exceptions

Implementation-defined.

Example