What are some examples of thread safety in C++?

What are some examples of thread safety in C++?

Thread safety in C++ refers to the practice of writing code that functions correctly during simultaneous execution by multiple threads. Examples include using mutexes, atomic operations, and thread-safe data structures.

Can you explain how mutexes work in C++?

Mutexes, or mutual exclusions, are synchronization primitives that prevent multiple threads from accessing a shared resource simultaneously. In C++, you can use std::mutex to lock a section of code, ensuring that only one thread can execute it at a time.

What are atomic operations?

Atomic operations are operations that complete in a single step relative to other threads. In C++, you can use std::atomic to perform operations like incrementing a counter without the need for locks, ensuring thread safety.

Are there any thread-safe data structures in C++?

Yes, C++ provides several thread-safe data structures, such as std::queue and std::stack when used with mutexes. Additionally, libraries like Intel TBB offer concurrent containers that are designed for multi-threaded environments.