What are the different types of hash functions in C++11?

What are the different types of hash functions in C++11?

In C++11, there are several types of hash functions, including std::hash, custom hash functions, and hash functions for specific types.

Can you explain how std::hash works?

Sure! std::hash is a template class that provides a default hash function for various types, allowing you to use it in hash tables.

What about custom hash functions? How do I create one?

To create a custom hash function, you can define a struct with an operator() that takes your type as input and returns a size_t hash value.

Are there any specific hash functions for strings?

Yes, std::hashstd::string is commonly used for hashing strings in C++11, providing a good balance between speed and distribution.