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std::shared_lock<Mutex>::operator bool

From cppreference.com
< cpp‎ | thread‎ | shared lock
 
 
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explicit operator bool() const noexcept;
(since C++14)

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

[edit] Parameters

(none)

[edit] Return value

true if *this has an associated mutex and has acquired shared ownership of it, false otherwise.

[edit] See also

tests whether the lock owns its associated mutex
(public member function) [edit]