def gz.fextra

bend-kit-zlib@0.5.1.0 · zlib.bend:570

import Base
import bend-kit-bytes@0.3.3.0/bytes.bend as Bytes

570def gz.fextra(on: Bool, r: Bytes.Bytes & Maybe<&2, U32>) -> Bytes.Bytes & Maybe<&2, U32>:
571  match on:
572    case False{}:
573      r
574    case True{}:
575      (b, m) = r
576      gz.fextra.at(m, b)