def at

bend-kit-archive@0.5.1.0 · archive.bend:44

import Base

44def at(xs: List<&2, U32>, +i: U32) -> U32:
45  match xs:
46    case Nil{}:
47      0
48    case Con{h, t}:
49      Bool.pick(U32, U32.is_zero(i), h, at(t, (i - 1 : U32)))