Question

C++
Give an example of overloading by implementing a function square(x), which calculates the square of x, (also known as x*x or x 2 ) where the input can be int or double.

Answer 1

• Below is the detailed implementation of the above problem in C++ with code and output shown.
• For better understading please read the comments mentioned in the code.
• In the code shown below function overloading is shown by the use of square() function where we use two functions of same name and same return type i.e, void square() but we pass different type of parameter to them i.e, int and double. So this is a kind of polymorphism which is using of functions(in this case) of same name as different kinds.
• So function is overloaded here, if you call square(x) where x is integer then the first function will be called but if x is of double type second function will be called.
• CODE:

#include<iostream>
using namespace std;

//function which will calculate and print the area of square with side of type int
void square(int x){
int result=x*x;
cout<<"Area of square with side "<<x<<" is "<<result<<endl;
return;
}
//function which will calculate and print the area of square with side of type double
void square(double x){
double result=x*x;
cout<<"Area of square with side "<<x<<" is "<<result<<endl;
return;
}
//driver function
int main(){

//calling square with data type as int
square(2);
//calling square with data type as double
square(2.3);

return 0;
}

• OUTPUT:

Area of square with side 2 is 4
Area of square with side 2.3 is 5.29

• Below are the screenshot attached for the code and input/output for better clarity and understanding.

CODE

INPUT/OUTPUT

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