Simple example for scodec BitVector unfold

Unfolder.scala

import scodec.bits._

object Unfolder extends App {

  case class S(size:Int) {
    def next:Option[(BitVector,S)] = 
       if (size > 0)
          Some((BitVector(size), S(size-1)))
       else
          None
  }


  val bv = BitVector.unfold(S(10)){_.next }

  println(bv)
}