Differentiate between function overloading and function overriding

Question

Differentiate between function overloading and function overriding in C++?

Answer 1

Function overloading may have different return types whereas function overriding must have same or matching return types.

Answer 2

Function overloading - functions with same name, but different number of arguments

Function overriding - concept of inheritance. Functions with same name and same number of arguments. Here the second function is said to have overridden the first

Answer 3

Overloading a method (or function) in C++ is the ability for functions of the same name to be defined as long as these methods have different signatures (different set of parameters). Method overriding is the ability of the inherited class rewriting the virtual method of the base class.

a) In overloading, there is a relationship between methods available in the same class whereas in overriding, there a is relationship between a superclass method and subclass method.

(b) Overloading does not block inheritance from the superclass whereas overriding blocks inheritance from the superclass.

(c) In overloading, separate methods share the same name whereas in overriding, subclass method replaces the superclass.

(d) Overloading must have different method signatures whereas overriding must have same signature.

Answer 4

1.Function Overloading is when multiple function with same name exist in a class. Function Overriding is when function have same prototype in base class as well as derived class.

2.Function Overloading can occur without inheritance. Function Overriding occurs when one class is inherited from another class.

3.Overloaded functions must differ in either number of parameters or type of parameters should be different. In Overridden function parameters must be same.

For more detail you can visit below link where you get more information about function overloading and overriding in c++ https://googleweblight.com/i?u=https://www.geeksforgeeks.org/function-overloading-vs-function-overriding-in-cpp/&hl=en-IN

Answer 5

Overloading means having methods with same name but different signature Overriding means rewriting the virtual method of the base class.............

Answer 6

In addition to the existing answers, Overridden functions are in different scopes; whereas overloaded functions are in same scope.