std::unique_lock::operator bool
From cppreference.com
< cpp | thread | unique lock
| explicit operator bool() const; |
(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.
Exceptions
noexcept specification:
noexcept
See also
| tests whether the lock owns its associated mutex (public member function) |