Skip to main content

Function overloading in c++.

Hello friends, in this post today, we learn about what is function overloading in c++. so lets start...

Function overloading in c++, overloading
Function overloading 



Function overloading:-

Function overloading is the part of compile time polymorphism.

Function overloading refers to creating numbers of functions with the same name which performs different tasks. Function overloading is also known as function polymorphism.

It is accomplish within a class.

The same function name will be used with different number of parameters and parameters of different type.

Overloading of functions with different return types is not allowed.

Compiler identifies which function should be called out of many using the type and number of arguments.

A function is overloaded when same name is given to different functions.

However, the two functions with the same name must differ in at least one of the following,

a) The number of parameters

b) The data type of parameters


Example:-

//function overloading 
#include <iostream>
using namespace std;


int Add(int num1, int num2) //Function 1
{
  return(num1+num2);
}

float Add(float a, float b) //Function 2
{
  return(a+b);
}

int Add(int num1, int num2, int num3) //Function 3
{
  return(num1+num2+num3);
}


int main()
{ 

  cout<<"Addition of two integer="<<(4,5)<<endl;
  cout<<"Addition of two floats="<<(7.6,1.58)<<endl;
  cout<<"Addition of three integer="<<(4,9,5)<<endl;
  return 0;
}

Output:-

Addition of two integer=5
Addition of two floats=1.58
Addition of three integer=5


I hope that whatever information I have given in this post today, you have liked it and you have understood it.so keep learning and wait for the next post that will help you to increase your knowledge with something new information .


Thank you so much for reading. And take care about yourself and your family.


Labels:

Comments

Post a Comment

Popular posts from this blog

Constructor in c++

Hello friends, in this post today, we learn about  what is constructor in c++ and types of constructor . so lets start... Constructor in c++ Constructor:-   A constructor is a “special” member function which initializes the objects of class.  Constructor is used to solve problem of initialization. Properties of constructor:- Constructors are used to construct the object of the class. Constructor name must be same as class name. Constructor is invoked automatically when objects of the class are created. The constructors are always declared in the public section. If declared in the private section then objects are can only be created inside the member functions but serve no purpose. It must be an instance member function , that is, it can never be static. Constructors  do not have any return type not even void so they cannot return any value. Constructor can also be overloaded. Constructors cannot be inherited, but they can be called from the constructors of...
Post a Comment
Recent Post's

Function with Default arguments in c++

Hello friends, i n this post today, we learn about   Function with Default arguments in c++ .  so lets start... Function with default arguments  Function with default arguments:- In C ++ it is possible for a function not to specify all its arguments. Some of the arguments  may be specified their default values at the time of declaring the function.   Default values are specified when the function is declared. We must add default arguments from right to left. We cannot provide a default value to a particular argument in the middle of an argument list. Default arguments are useful in situations where some arguments always have the same value. For Example, passing marks. In a function with default argument, if one argument is default, all successive arguments  must be default. We cannot provide default values in the middle of the arguments or towards  l eft side. We provide few examples: 1. void fun(int x, int y = 20, int z=35); (valid) 2. void fun(int x,...
Post a Comment
Recent Post's

Pure virtual function in c++

Hello friends, i n this post today, we learn about what is pure virtual  function in c++ and how to use pure virtual function  in c++ .  so lets start... Pure virtual function in c++ Pure virtual function:- A pure virtual function is a function which has its body set to 0 i.e., the pure virtual function  does not have any body. A pure virtual function means ‘do nothing’ function. A function declared in a way: Syntax:- virtual void display() = 0;  is known as pure virtual function. Here = 0 does not mean that function show is equal  to 0. It simply means that the virtual function show has no body.  The pure virtual function act  as an interface and any class which inherits the class in which pure virtual function is present,  has to provide the implementation for the function show. We can say empty function. A pure virtual function has no definition relative to the base class. Programmers have to redefine pure virtual function in derived clas...
Post a Comment
Recent Post's