What is the difference between lock_guard and unique_lock?

Can you explain the difference between lock_guard and unique_lock in C++?

Sure! Both lock_guard and unique_lock are used for managing mutexes in C++, but they have some key differences.

What are those key differences?

lock_guard is a simpler RAII wrapper that locks a mutex when created and unlocks it when destroyed. unique_lock, on the other hand, offers more flexibility, allowing you to lock and unlock the mutex multiple times.

When should I use unique_lock instead of lock_guard?

You should use unique_lock when you need to defer locking, unlock before the unique_lock goes out of scope, or if you need to transfer ownership of the lock.

Can you give an example of when to use each?

Certainly! Use lock_guard for simple, scoped locking. Use unique_lock for more complex scenarios, like condition variables or when you need to lock/unlock multiple times.