def fit.eq
import bend-parallel@0.1.0.0/histogram.bend as Histogramimport Base
76# t when it holds exactly 2^d entries, else a new one.
77def fit.eq(+d: Nat, r: Array<U32> & U32) -> Array<U32>:
78 (t, +n) = r
79 fit.pick(U32.is_eq(n, U32.shln(1, d)), d, t)