What is the difference between std::unique_lock and std::shared_lock?

Can you explain the difference between std::unique_lock and std::shared_lock in C++?

Sure! std::unique_lock provides exclusive ownership of a mutex, while std::shared_lock allows shared ownership.

When should I use std::unique_lock instead of std::shared_lock?

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

Are there any performance implications between the two?

Yes, std::shared_lock can introduce overhead due to managing shared ownership, while std::unique_lock is generally more efficient.

Can you give an example of when to use each?

Certainly! Use std::unique_lock for writing to a file, and std::shared_lock for reading from a shared data structure.