Bit Shutdown Panel - Turn Off the ith Bit

🔌 Shutdown Control

n & ~(1 << i) → Turn OFF bit i

Original Number (n) 0

Mask ~(1 << i) 0

Result (n & mask) 0

Number (n)

Bit Position (i)

📚 Turn OFF the ith Bit

To turn OFF (set to 0) the ith bit of a number, use AND with an inverted mask:

          result = n & ~(1 << i)

          // Example: Turn off bit 3 of 255

          // 255 = 11111111

          // 1 << 3 = 00001000

          // ~(1 << 3) = 11110111

          // AND -----------

          // 247 = 11110111

The inverted mask ~(1 << i) has all bits 1 except bit i. ANDing with this mask forces bit i to 0, leaving other bits unchanged.