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std::shared_lock<Mutex>:: operator bool

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std::shared_lock
explicit operator bool ( ) const noexcept ;
(since C++14)

Checks whether * this owns a locked mutex or not. Effectively calls owns_lock() .

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)