C++ Program to Demonstrate Operator Overloading

In this tutorial you will learn about the C++ Program to Demonstrate Operator Overloading and its application with practical example.

In this tutorial, we will learn to create a C++ program that will Demonstrate Operator Overloading in C++ programming.

Table Of Contents−

What are the operators?
Algorithm:-

Prerequisites.

Before starting with this tutorial we assume that you are best aware of the following C++ programming topics:

Operators in C++ Programming.
Basic Input and Output function in C++ Programming.
Basic C++ programming.

Classes and Objects in C++ programming.

What are the operators?

Operators are symbols with special meanings in a programming language for datatypes. The operators are used between one or more operands to perform the operations.

There are three types of operators

Operators in C++ can be categorized into 6 types:

1. Arithmetic Operators
2. Assignment Operators
3. Relational Operators
4. Logical Operators
5. Bitwise Operators
6. Other Operators

Operators in C++ can be categorized into 6 types:

1. Arithmetic Operators

2. Assignment Operators

3. Relational Operators

4. Logical Operators

5. Bitwise Operators

6. Other Operators

In this program, we will overload the Arithmetic operator i.e. “++”.

Algorithm:-

1. Starting the program.

2. Declaring the class that will overload the operator.

3. Declaring the variable required for the program.

4. Creating a Constructor to initialize count to 8.

5. Overloading the ++ when used as prefix.

6. Call the "void operator ++ ()" function.

7. Printing the data afteroverloading the ++ operator.

7. End program.

1. Starting the program.

2. Declaring the class that will overload the operator.

3. Declaring the variable required for the program.

4. Creating a Constructor to initialize count to 8.

5. Overloading the ++ when used as prefix.

6. Call the "void operator ++ ()" function.

7. Printing the data afteroverloading the ++ operator.

7. End program.

Program for Operator overloading:-

In this program, we will Overload the increment operator. We will use the operators to work for user-defined classes. It means we will use the operators with special meaning in the program for a data type.

Program to overload increment operator:-

// Overload ++ when used as prefix

#include <iostream>
using namespace std;
//declaring the class that will overload the operator  
class Count 
{
    //declaring the variable required for the program
   private:
    int i;

   public:

    // Creating a Constructor to initialize count to 8
    Count() : i(8) {}

    // Overloading the ++ when used as prefix
    void operator ++ () {
        ++i;
    }
    //printing the data afteroverloading the ++ operator
    void display() 
    {
        cout << "Count: " << i << endl;
    }
};

int main() {
    Count count1;

    // Call the "void operator ++ ()" function
    ++count1;

    count1.display();
    return 0;
}

// Overload ++ when used as prefix

#include <iostream>

using namespace std;

//declaring the class that will overload the operator

class Count

{

//declaring the variable required for the program

private:

int i;

public:

// Creating a Constructor to initialize count to 8

Count() : i(8) {}

// Overloading the ++ when used as prefix

void operator ++ () {

++i;

}

//printing the data afteroverloading the ++ operator

void display()

{

cout << "Count: " << i << endl;

}

};

int main() {

Count count1;

// Call the "void operator ++ ()" function

++count1;

count1.display();

return 0;

}

Output for increment:-

Declaring the required variables for the program.

Creating a constructor.

Overload operator.

Main function body.

Printing the outputs

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C++ Program to Demonstrate Operator Overloading