Arithmetic Operators in C++¶

What are Arithmetic Operators?¶

Arithmetic operators are used to perform mathematical calculations like addition, subtraction, and multiplication. They are the most basic building blocks of programming logic.

Operator	Operation	Description
`+`	Addition	Adds two values together
`-`	Subtraction	Subtracts the right value from the left value
`*`	Multiplication	Multiplies two values
`/`	Division	Divides the left value by the right value
`%`	Modulus	Returns the remainder after division

Note: While the basic behavior is the same across languages, how they handle things like "Integer Division" (e.g., 5 / 2) can vary.

C++ Specific Behavior¶

Like C and Java, C++ performs integer division when both operands are integers.

Operator	Operation	Description
`++`	Increment	Increases the value by 1
`--`	Decrement	Decreases the value by 1

Code Example¶

#include <iostream>
using namespace std;

int main() {
    int a = 10;
    int b = 3;

    cout << (a + b) << endl;    // 13
    cout << (a / b) << endl;    // 3 (Integer Division)

    a++;
    cout << a << endl;          // 11

    return 0;
}