def W2.shl.big
import bend-kit-f64@0.1.0.0/f64.bend as F64import Base
138def W2.shl.big(big: Bool, +k: U32, w: W2) -> W2:
139 match big w:
140 case True{} W2{hi, lo}:
141 W2{(lo << U32.to_nat((k - 32 : U32)) : U32), 0}
142 case False{} W2{hi, lo}:
143 W2.shl.small(U32.is_zero(k), k, hi, lo)