What are concurrency conditions in C++?

What are concurrency conditions in C++?

Concurrency conditions in C++ refer to the scenarios that arise when multiple threads access shared resources. This can lead to issues like race conditions, deadlocks, and resource contention.

Can you explain race conditions with an example?

Sure! A race condition occurs when two or more threads attempt to modify shared data at the same time. For example, if two threads increment a shared counter without proper synchronization, the final value may not reflect all increments.

How can I prevent race conditions in my code?

You can prevent race conditions by using synchronization mechanisms like mutexes, locks, or atomic operations to ensure that only one thread can access the shared resource at a time.

What is a deadlock and how does it happen?

A deadlock occurs when two or more threads are waiting for each other to release resources, causing them to be stuck indefinitely. This often happens when threads acquire locks in different orders.