What is the C++11 hashing library?

Can you explain what the C++11 hashing library is?

The C++11 hashing library provides a set of functions and classes for creating hash values, which are useful for data structures like hash tables.

What are some common hash functions included in this library?

Common hash functions in the C++11 library include std::hash, which can be used for various data types like integers, strings, and pointers.

How do I use std::hash in my code?

You can use std::hash by including the <functional> header and creating an instance of std::hash for your data type. For example: std::hash<int> hashFunc; size_t hashValue = hashFunc(42);.

Are there any performance considerations I should be aware of?

Yes, the performance of hash functions can vary. It's important to choose a hash function that minimizes collisions for your specific data set.