What is the role of const in C++ regarding thread safety?

What is the role of const in C++ regarding thread safety?

In C++, the const keyword indicates that a variable's value cannot be modified after initialization. This can enhance thread safety by ensuring that shared data remains unchanged, preventing race conditions.

Can you give an example of how const can help in a multithreaded environment?

Sure! If you have a const object shared between threads, one thread can read its data without worrying about another thread modifying it, thus avoiding potential data corruption.

Are there any limitations to using const for thread safety?

Yes, while const helps prevent modifications, it doesn't protect against issues like data races if multiple threads are writing to non-const shared data. Proper synchronization mechanisms are still needed.

What synchronization methods should I use in conjunction with const?

You can use mutexes, locks, or atomic operations to synchronize access to shared data, ensuring that even non-const data is safely accessed by multiple threads.