Coroutines vs Threads in C++20

What are the main differences between coroutines and threads in C++20?

Coroutines are lightweight, allowing for asynchronous programming without blocking, while threads are heavier and run concurrently.

Can you explain how coroutines improve performance in C++20?

Coroutines allow for non-blocking operations, which can lead to better resource utilization and reduced context switching overhead.

Are there any specific use cases where coroutines are preferred over threads?

Yes, coroutines are ideal for I/O-bound tasks, like network requests, where waiting for responses can be done without blocking.

How do I implement a simple coroutine in C++20?

You can implement a coroutine using the co_await, co_return, and co_yield keywords. Would you like a code example?