What are common errors when using semaphores in C++?

What are common errors when using semaphores in C++?

Some common errors include forgetting to initialize semaphores, deadlocks, and improper semaphore usage in multi-threading.

Can you explain how to avoid deadlocks?

To avoid deadlocks, ensure that all threads acquire semaphores in a consistent order and use timeout mechanisms.

What happens if I forget to initialize a semaphore?

Forgetting to initialize a semaphore can lead to undefined behavior, causing your program to crash or behave unpredictably.

Are there any best practices for using semaphores?

Yes, always initialize semaphores, use them consistently, and consider using higher-level abstractions like mutexes when possible.