🔴 Advanced · Lesson 43

Bitwise Operations

Bitwise Operators

Bitwise operators work at the binary bit level. They are used in low-level programming, flags, masks and performance-sensitive code.

Operators

Operator	Name	Example
`&`	AND	1 & 1 = 1
`\|`	OR	1 \| 0 = 1
`^`	XOR	1 ^ 1 = 0
`~`	NOT	Flips bits
`<<`	Left Shift	x << 1 means x*2
`>>`	Right Shift	x >> 1 means x/2

Examples

C Language

#include <stdio.h>

int main() {
    int a = 5, b = 3;  // 5 = 0101, 3 = 0011

    printf("a & b = %d\n", a & b);
    printf("a | b = %d\n", a | b);
    printf("a ^ b = %d\n", a ^ b);
    printf("a << 1 = %d\n", a << 1);
    printf("a >> 1 = %d", a >> 1);
    return 0;
}

a & b = 1 a | b = 7 a ^ b = 6 a << 1 = 10 a >> 1 = 2

Bit Tricks

C Language

// Check if nth bit is set
if(num & (1 << n)) printf("Set");

// Set nth bit
num = num | (1 << n);

// Clear nth bit
num = num & ~(1 << n);

// Toggle nth bit
num = num ^ (1 << n);

// Check even/odd
if(num & 1) printf("Odd"); else printf("Even");

Summary

Bitwise operators work on binary bits
AND, OR, XOR and NOT are common bit operators
Left shift often multiplies by powers of 2
Right shift often divides by powers of 2
Bit masks help check, set, clear and toggle bits

Bitwise Operators

Bitwise operators binary bits पर काम करते हैं। ये flags, masks और low-level programming में useful होते हैं।

Operators

Operator	Name
`&`	AND
`\|`	OR
`^`	XOR
`~`	NOT
`<<`	Left Shift
`>>`	Right Shift

Examples

C Language

int a = 5, b = 3;
printf("%d", a & b);  // 1
printf("%d", a | b);  // 7
printf("%d", a ^ b);  // 6

Bit Tricks

C Language

num & (1 << n);      // check nth bit
num | (1 << n);      // set nth bit
num & ~(1 << n);     // clear nth bit
num ^ (1 << n);      // toggle nth bit

सारांश

Bitwise operators binary level पर काम करते हैं
AND, OR, XOR, NOT common हैं
Left shift multiply जैसा काम कर सकता है
Right shift divide जैसा काम कर सकता है
Bit mask से bits check/set/clear कर सकते हैं

← Back to C Tutorial