std::shared_lock<Mutex>::owns_lock
 bool owns_lock() const noexcept;  |  (since C++14) | 
Checks whether *this owns a locked mutex or not.
Parameters
(none).
Return value
true if *this has an associated mutex and has acquired shared ownership of it, false otherwise.
See also
|  tests whether the lock owns its associated mutex  (public member function)  | 
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