C++ Addition Assignment (+=) Operator

In this C++ tutorial, you shall learn about Addition Assignment operator, its syntax, and how to use this operator, with examples.

C++ Addition Assignment

In C++, Addition Assignment Operator is used to add a value (right operand) to this variable (left operand) and assign the result back to this variable (left operand).

The syntax to add a value of 2 to variable x and assign the result to x using Addition Assignment Operator is

x += 2

Example

In the following example, we take a variable x with an initial value of 5, add a value of 2 to x and assign the result to x, using Addition Assignment Operator.

main.cpp

#include <iostream>
using namespace std;

int main() {
    int x = 5;
    x += 2;
    cout << "x : " << x << endl;
}

Output

x : 7
Program ended with exit code: 0

Conclusion

In this C++ Tutorial, we learned about Addition Assignment Operator in C++, with examples.