Operators in C: A Complete Guide to Arithmetic, Relational, and Logical Operators and More

Operators in C
Operators in C are symbols that perform operations on variables and values. C
supports a variety of operators that allow you to manipulate data, perform
arithmetic, logical operations, and more. Understanding how to use operators
effectively is essential to writing functional and efficient code.

1. Types of Operators in C
Operators in C can be categorized into several types:

1.1 Arithmetic Operators

These operators perform basic arithmetic operations like addition, subtraction,
multiplication, division, and modulus (remainder).

 +: Addition
 -: Subtraction
 *: Multiplication
 /: Division
 %: Modulus (remainder of division)

Example:

#include <stdio.h>

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

printf("Addition: %d\n", a + b); // 10 + 3 = 13
printf("Subtraction: %d\n", a - b); // 10 - 3 = 7
printf("Multiplication: %d\n", a * b); // 10 * 3 = 30
printf("Division: %d\n", a / b); // = 3 (integer division)
printf("Modulus: %d\n", a % b); // 10 % 3 = 1

return 0;
}

, 1.2 Relational Operators

These operators are used to compare two values. They return either true (1) or
false (0) based on the result of the comparison.

 ==: Equal to
 !=: Not equal to
 >: Greater than
 <: Less than
 >=: Greater than or equal to
 <=: Less than or equal to

Example:

#include <stdio.h>

int main() {
int x = 5, y = 10;

printf("x == y: %d\n", x == y); // 5 == 10 (False)
printf("x != y: %d\n", x != y); // 5 != 10 (True)
printf("x > y: %d\n", x > y); // 5 > 10 (False)
printf("x < y: %d\n", x < y); // 5 < 10 (True)

return 0;
}

1.3 Logical Operators

Logical operators are used to perform logical operations on expressions. They are
often used in decision-making structures like if statements.

 &&: Logical AND
 ||: Logical OR
 !: Logical NOT

Example:

#include <stdio.h>