ref: 62a0866a13cb0e7d0f982b1681be85ae1040f8c1
dir: /test/fib.myr/
use std /* checks if recursive functions work. should return 21. */ const fib = {n if n <= 0 -> 0 elif n == 1 -> 1 else -> fib(n - 1) + fib(n - 2) ;; } const main = { std.exit(fib(8)) }