Increment (++) And Decrement (--)Operator Overloading In C++| Increment (++) And Decrement (--)Operator Overloading In C++ In Hindi

 

Increment (++) And Decrement (--)Operator  Overloading  In  C++

Operator overloading is a feature in object-oriented programming which allows a programmer to redefine a built-in operator to work with user-defined data types.

Overloading the increment operator

The operator symbol for both prefix(++i) and postfix(i++) are the same. Hence, we need two different function definitions to distinguish between them.

Overloading the decrement operator

 Overload the decrement operator (--) decrement and here is program

Fig: Increment (++) And Decrement (--)Operator  Overloading  In  C++

 

Program:

 

#include<iostream.h>

#include<conio.h>

class num

{

private:

int n;

public:

void getnum(int x)

{

n=x;

}

void dispnum(void)

{

cout<<”value of n is: “<<n;

}

void operator++(void)

{

n=++n;

}

Void operator—(void)

{

n=--n;

}

};

int main()

{

num a1;

a1.getnum(10);

++a1;

cout<<”after increment-“;

a1.dispnum();

cout<<endl;

--a1;

cout<<”after decrement-“;

a1.dispnum();

cout<<endl;

return 0;

}

 

Output:

After increment- value of n is:11

After decrement-value of n is:10