The hash class is default constructible, which means that one can construct this object without any arguments or initialization values. It is used to get the hash value of the argument that is being passed to it. If the argument doesn’t change, the value doesn’t change either.
template <class T> struct hash;
Syntax to create object:
hash<class template> object-name
Member functions: This Hash class only has one member function:
- operator(): It returns hashed value for given argument.
Below is the implementation of the hash class:
String hash values: 4457761756728957899 Bitset 10101 hash value: 17123654466142159564 Vector
hash value: 16935082123893034051 Char hash values: 97
- How to convert a class to another class type in C++?
- std::any Class in C++
- Array class in C++
- std::string class in C++
- Structure vs class in C++
- std::uniform_int_distribution class in C++
- std:: valarray class in C++
- How to implement our own Vector Class in C++?
- Virtual base class in C++
- Friend class and function in C++
- C++ String Class and its Applications | Set 2
- C++ string class and its applications
- Difference between namespace and class
- Why is the size of an empty class not zero in C++?
- Can a C++ class have an object of self type?
If you like GeeksforGeeks and would like to contribute, you can also write an article using contribute.geeksforgeeks.org or mail your article to firstname.lastname@example.org. See your article appearing on the GeeksforGeeks main page and help other Geeks.
Please Improve this article if you find anything incorrect by clicking on the "Improve Article" button below.