C++ Arithmetic Operators

C++ provides a set of arithmetic operators that allow us to perform mathematical operations on variables and constants. These operators are used to perform basic arithmetic operations such as addition, subtraction, multiplication, and division.

Table of Arithmetic Operators

The table below shows the different arithmetic operators available in C++

Operator	Name	Description	Example
+	Addition	Adds two operands	3 + 4 = 7
-	Subtraction	Subtracts the second operand from the first	7 - 4 = 3
*	Multiplication	Multiplies two operands	3 * 4 = 12
/	Division	Divides the first operand by the second	12 / 4 = 3
%	Modulo	Divides the first operand by the second and returns the remainder	12 % 5 = 2
++	Increment	Adds 1 to the operand	a++, ++a
--	Decrement	Subtracts 1 from the operand	a--, --a

Examples

Here are some examples of how to use arithmetic operators in C++:

1#include <iostream>
2
3int main()
4{
5    int a = 3;
6    int b = 4;
7
8    // Addition
9    int c = a + b;
10    std::cout << "a + b = " << c << std::endl;
11
12    // Subtraction
13    c = a - b;
14    std::cout << "a - b = " << c << std::endl;
15
16    // Multiplication
17    c = a * b;
18    std::cout << "a * b = " << c << std::endl;
19
20    // Division
21    c = a / b;
22    std::cout << "a / b = " << c << std::endl;
23
24    // Modulo
25    c = a % b;
26    std::cout << "a % b = " << c << std::endl;
27
28    // Increment
29    a++;
30    std::cout << "a++ = " << a << std::endl;
31
32    // Decrement
33    b--;
34    std::cout << "b-- = " << b << std::endl;
35
36    return 0;
37}

The output of the above program will be:

1a + b = 7
2a - b = -1
3a * b = 12
4a / b = 0
5a % b = 3
6a++ = 4
7b-- = 3

It is important to note that the order of operations (also known as operator precedence) determines the order in which operations are performed. For example, in the expression 3 + 4 * 5, the multiplication 4 * 5 is performed first and the result is then added to 3. The same rule applies to all other arithmetic operations.