The C++ Modulus Operator [mod or % operator]
The C++ language provides a built-in mechanism, the modulus operator (mod or %), that computes the remainder that results from performing integer division.
Operator Overloading in C++
Operator Overloading enables us to make the standard operators, like +, -, * etc, to work with the objects of our own data types or classes. We can write a function which redefines a particular operator so that it performs a specific operation when it is used with the object of a class.