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std::shared_lock<Mutex>:: operator=

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std::shared_lock
shared_lock & operator = ( shared_lock && other ) noexcept ;
(since C++14)

Move assignment operator. Equivalent to shared_lock { std :: move ( other ) } . swap ( * this ) ; return * this ; .

If other is the same object as * this , there is no effect.

Otherwise, if prior to this call * this has an associated mutex (( mutex() returns a non-null pointer) and has acquired ownership of it ( owns() returns true ), the mutex is unlocked by calling unlock_shared() . After this call, other has no associated mutex.

Parameters

other - another shared_lock to replace the state with

Return value

* this

Defect reports

The following behavior-changing defect reports were applied retroactively to previously published C++ standards.

DR Applied to Behavior as published Correct behavior
LWG 4172 C++14 self-move-assignment of shared_lock was incorrectly specified respecified as no-op