What are the differences between unique_lock and shared_lock?

What are the differences between unique_lock and shared_lock in C++?

Unique_lock allows exclusive ownership of a mutex, while shared_lock allows multiple threads to read but not write.

Can you explain when to use each of them?

Use unique_lock when you need exclusive access to a resource, and shared_lock when multiple threads can read simultaneously.

Are there any performance implications between the two?

Yes, unique_lock can be more efficient for write operations, while shared_lock can improve performance in read-heavy scenarios.

What about their constructors and destructors?

Unique_lock has a more complex constructor for ownership transfer, while shared_lock is simpler, focusing on shared access.