def all_zeros

bend-toon-codec@0.1.0.0 · src/num.bend:52

import Base

52# True when the string is empty or all zeros.
53def all_zeros(+s: String) -> Bool:
54  match s:
55    case SNil{}:
56      True{}
57    case SCon{c, t}:
58      is_zero_char(c) && all_zeros(t)