def ch.next
import bend-kit-zlib@0.5.1.0/zlib.bend as Zlibimport Base
897def ch.next(r: Array<U32> & U32, src: Array<U32>, head: Array<U32>, +i: U32, +max: U32, +blen: U32, +bdist: U32) -> Ch:
898 (prev, +c) = r
899 Ch{Lz{src, head, prev}, i, c, max, blen, bdist, ch.ok(i, c, max, blen)}