What are the threading synchronization features in C++14?

What are the new threading synchronization features introduced in C++14?

C++14 introduced several enhancements for threading, including improvements to std::thread and std::mutex, as well as new features like std::shared_mutex for shared ownership.

Can you explain how std::shared_mutex works?

Sure! std::shared_mutex allows multiple threads to read data simultaneously while ensuring exclusive access for writing. This improves performance in read-heavy scenarios.

What are the advantages of using std::shared_mutex over std::mutex?

The main advantage is that std::shared_mutex allows multiple readers to access the resource concurrently, which can significantly improve performance in situations where reads are more frequent than writes.

Are there any drawbacks to using std::shared_mutex?

Yes, the main drawback is that it can introduce complexity and potential for deadlocks if not managed carefully. Additionally, it may have higher overhead compared to std::mutex in write-heavy scenarios.