Operators in C

An operator is a symbol that tells the compiler to perform a specific operation on operands.

---

Categories of Operators

1. Arithmetic Operators

2. Relational Operators

3. Logical Operators

4. Assignment Operators

a = 5;    /* simple assignment */
a += 3;   /* a = a + 3 */
a -= 2;   /* a = a - 2 */
a *= 4;   /* a = a * 4 */
a /= 2;   /* a = a / 2 */
a %= 3;   /* a = a % 3 */

5. Increment and Decrement

int a = 5;
printf("%d", ++a);  /* pre-increment: prints 6, a = 6 */
printf("%d", a++);  /* post-increment: prints 6, a = 7 */
printf("%d", --a);  /* pre-decrement: prints 6, a = 6 */
printf("%d", a--);  /* post-decrement: prints 6, a = 5 */

6. Bitwise Operators

7. Conditional (Ternary) Operator

int max = (a > b) ? a : b;
/* If a > b, max = a, else max = b */

8. sizeof Operator

printf("%zu", sizeof(int));    /* prints 4 */
printf("%zu", sizeof(char));   /* prints 1 */

---

Operator Precedence (High to Low)