(********************************************************************)
(*  OCaml code from the book ``Learn Programming with OCaml''       *)
(*  See https://usr.lmf.cnrs.fr/lpo/                                *)
(*                                                                  *)
(*  Sylvain Conchon and Jean-Christophe Filliâtre                   *)
(*  Copyright 2025 Université Paris-Saclay and CNRS                 *)
(*                                                                  *)
(*  Openly licensed via CC BY SA 4.0                                *)
(*  See https://creativecommons.org/licenses/by-sa/4.0/deed.en      *)
(********************************************************************)

(* Program 53 on page 251
   Searching in a Patricia Tree *)

let zero_bit x b =
  x land b == 0

let rec mem x = function
  | Empty -> false
  | Leaf j -> x = j
  | Node (_, b, l, r) -> mem x (if zero_bit x b then l else r)

This document was generated using caml2html