To create a objeect for the hash class we have to follow the following procedure: hash object_name So by default a hash class is a template class. It is such a class that can be constructed in a more dafault way which in others words means that any user who intends to use the hash class can constuct the objects without any given initial values and arguments. Std::hash is a class in C++ Standard Template Library (STL). The basis of mapping comes from the hashcode generation and the hash function. Basically the key-value pairs that we use in a map, multimap, unordered_map etc are mapped with each other. When we use any associative container we unknowingly use an hash function. In this article, we will cover how hashing is natively supported in C++ through STL (std:hash) and how we can use it to generate hash of any object in C++. Reading time: 25 minutes | Coding time: 5 minutes
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