Golang でバイトから個々のビットを抽出するにはどうすればよいでしょうか?

if (b & m) != 0 {
    // nth bit is set to 1
}

<code class="go">package main

import "fmt"

func hamming(a, b []byte) (int, error) {
    if len(a) != len(b) {
        return 0, errors.New("a, b are not the same length")
    }

    diff := 0
    for i := 0; i < len(a); i++ {
        b1 := a[i]
        b2 := b[i]
        for j := 0; j < 8; j++ {
            // Create a mask to check the (j+1)th bit
            mask := byte(1 << uint(j))
            if (b1 & mask) != (b2 & mask) {
                diff++
            }
        }
    }
    return diff, nil
}

func main() {
    // Example: Compute the Hamming distance between two bytes
    b1 := byte(255) // 11111111
    b2 := byte(0) // 00000000
    distance, err := hamming([]byte{b1}, []byte{b2})
    if err != nil {
        fmt.Println(err)
        return
    }
    fmt.Println("Hamming distance:", distance) // Outputs: 8
}</code>