std::unique_lock::operator bool

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< cpplrm; | threadlrm; | unique lock
Thread support library
Threads
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this_thread namespace
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Mutual exclusion
(C++11)
Generic lock management
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(C++11)(C++11)(C++11)
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Condition variables
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Futures
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(C++11)
explicit operator bool() const noexcept;
(since C++11)

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 ownership of it, false otherwise.

See also

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