How to Manipulate Individual Bits in Go: Setting, Clearing, and Checking?

How to Manipulate Bits in Go

Working with individual bits in an integer is a common task in programming. In Go, there are several ways to achieve this, including the following:

Setting a Bit

To set a particular bit in an integer, you can use the bitwise OR operator (|). For instance:

// Sets the 7th bit in the integer n.
func setBit(n int, pos uint) int {
    return n | (1 << pos)
}

Clearing a Bit

To clear a bit, you can use the bitwise AND operator (&) with a mask. Here's an example:

// Clears the 7th bit in the integer n.
func clearBit(n int, pos uint) int {
    mask := ^(1 << pos)
    return n & mask
}

Checking if a Bit is Set

To check if a particular bit is set, you can use the bitwise AND operator again:

// Returns true if the 7th bit is set in the integer n, false otherwise.
func hasBit(n int, pos uint) bool {
    return (n & (1 << pos)) > 0
}

These functions provide a flexible and efficient way to manipulate individual bits in Go, enabling you to perform bitwise operations with precision.

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