Operator overloading c learn cpp pdf

An operator can be overloaded by defining a function to it. It means the behavior of operators when applied to objects of a class can be redefined. The operator is not a member of the class, it is a friend so. In this article, you will learn to implement operator overloading feature. Overloaded operators are functions with special names the keyword operator followed by the symbol for the operator being defined. Like any other function, an overloaded operator has a. The overloaded operator must be added as a member function of the left operand. Since they are not part of a class definition, they can only access the public members. It cannot be used for builtin types int, float, char etc.

It is similar to overloading functions except the function name is replaced by the keyword operator followed by the operator s symbol. The function for operator is declared by using the operator keyword followed by the operator. Operator overloading is a way of providing new implementation of existing operators to work with userdefined data types. Thus a programmer can use operators with userdefined types as well.

This tutorial has been prepared for the beginners to help them understand the basic to. Take the fraction class we wrote in the previous quiz listed below and add an overloaded operator operator to it. Later in the chapter, youll learn how to flush your own. By using function overloading on the operator functions, you can define your own versions of the operators that work with different data types including classes that youve written. Using function overloading to overload operators is called operator overloading. Overloading operator operator make it extremely easy to output your class to screen and accept user input from the console. By using function overloading on the operator functions, you can define your own versions of the operators that work with different data types including classes. You can also overload the operator for your own classes. Output streams use the insertion operator for standard types. Operator overloading allows you to redefine the way operator works for userdefined types only objects, structures. In this article we will look at another object oriented concept that makes operator handling easy.