public/subjects/reversebits.en.md

reversebits

WARNING! VERY IMPORTANT!

For this exercise a function will be tested with the exam own main. However the student still needs to submit a structured program:

This means that:

• The package needs to be named package main.
• The submitted code needs one declared function main(func main()) even if empty.
• The function main declared needs to also pass the Restrictions Checker(illegal functions tester). It is advised for the student to just empty the function main after its own testings are done.
• Every other rules are obviously the same than for a program.

Instructions

Write a function that takes a byte, reverses it bit by bit (as shown in the example) and returns the result.

Expected function

func ReverseBits(by byte) byte {

}

Usage

Here is a possible program to test your function :

package main

import (
	"fmt"
)

func main() {
	a := byte(0x26)
	fmt.Printf("%08b\n", a)
	fmt.Printf("%08b\n", ReverseBits(a))
}

and its output :

student@ubuntu:~/piscine-go/reversebits$ go build
student@ubuntu:~/piscine-go/reversebits$ ./reversebits
00100110
01100100
student@ubuntu:~/piscine-go/reversebits$