A scala-cli script for the "1 Billion nested loop iterations" experiment

Index.scala

//> platform native

@scala.annotation.tailrec
def loop(n: Int, i: Int = 0)(f: Int => Any): Unit =
  if i < n then
    f(i)
    loop(n, i + 1)(f)
  else ()

@main def run(u: Int) =
  val r = scala.util.Random.nextInt(10000)
  val a = Array.fill(10000)(0)
  loop(10_000) { i =>
    loop(100_000) { j =>
      a(i) += u
    }
    a(i) += r
  }
  println(s"${a(r)}")

Compiled using:

$ scala-cli --power package Index.scala -o Index
Wrote /Users/regiskuckaertz/code/loops/Index, run it with
  ./Index