Overloading the Plus(+) Operator in C++
To overload the plus operator, we have to create an operator+ function inside our class and define its behavior inside this function’s body. The following syntax shows how to do it:
myClass operator+ (const myClass& obj) const { // new behaviour }
C++ Program to Overload the Plus(+) Operator for a Class
C++
// C++ program to demonstrate operator overloading of plus // operator #include <iostream> using namespace std; // Class definition class MyClass { private : int value; public : // Constructors MyClass(): value(0){} MyClass( int val): value(val){} // Overloaded operator + MyClass operator+( const MyClass& other) const { MyClass result; result.value = this ->value + other.value; return result; } // Getter method int getValue() const { return value; } }; int main() { // Create objects MyClass obj1(5); MyClass obj2(10); // Use overloaded operator + MyClass result = obj1 + obj2; // Output result cout << "Result: " << result.getValue() << endl; return 0; } |
Output
Result: 15
To know more about operator overloading, refer to the article – Operator Overloading in C++
How to Overload the (+) Plus Operator in C++?
In C++, operator overloading is a feature of the OOPs concept that allows you to redefine the behavior for different operators when they are used with objects of user-defined classes. The plus operator (+) is a binary operator generally used for addition. In this article, we will learn how to overload the (+) plus operator in C++ for a user-defined class.