Converting several bytes in an array to another type in Go

Question

I just started yesterday with Go so I apologise in advance for the silly question.

Imagine that I have a byte array such as:

func main(){
    arrayOfByt         


        

Answer 1

Look at encoding/binary, as well as bytes.Buffer

TL;DR version:

import (
    "encoding/binary"
    "bytes"
)

func main() {
    var s eightByteType
    binary.Read(bytes.NewBuffer(array[:]), binary.LittleEndian, &s)
}

A few things to note here: we pass array[:], alternatively you could declare your array as a slice instead ([]byte{1, 2, 3, 4, 5}) and let the compiler worry about sizes, etc, and eightByteType won't work as is (IIRC) because binary.Read won't touch private fields. This would work:

type eightByteType struct {
    A, B uint32
}