C++11 std::hash vs Boost Hash

What are the main differences between std::hash and Boost Hash in C++?

The main differences include performance, flexibility, and the types they support. std::hash is part of the C++11 standard library, while Boost Hash is part of the Boost library and offers more customization.

Can you give examples of when to use each?

Use std::hash for standard types and when you want portability. Use Boost Hash for custom types or when you need advanced hashing features.

Is one faster than the other?

Performance can vary based on the implementation and use case. Generally, std::hash is optimized for standard types, while Boost Hash may be slower due to its flexibility.

Are there any specific scenarios where Boost Hash outperforms std::hash?

Yes, in scenarios requiring complex data structures or custom types, Boost Hash can provide better distribution and fewer collisions.