def ii_k
import bend-collections@1.0.0.0/src/math/f64.bend as F64import Base
import bend-collections@1.0.0.0/src/math/u64.bend as W
import bend-collections@1.0.0.0/src/math/w64.bend as X
1016def ii_k(+w: W.U64, +k: Nat, small: Bool) -> Bool:
1017 match small:
1018 case True{}:
1019 X.eq(X.shl(X.shr(w, k), k), w)
1020 case False{}:
1021 X.is_zero(w)