File: evenodd.ml

package info (click to toggle)
js-of-ocaml 5.9.1-1
  • links: PTS, VCS
  • area: main
  • in suites: forky, sid, trixie
  • size: 32,020 kB
  • sloc: ml: 91,250; javascript: 57,289; ansic: 315; makefile: 271; lisp: 23; sh: 6; perl: 4
file content (22 lines) | stat: -rw-r--r-- 398 bytes parent folder | download 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
 
(* TEST
 *)

open Effect
open Effect.Deep

type _ t += E : unit t

let rec even n =
  if n = 0 then true
  else try_with odd (n-1)
       { effc = fun (type a) (e : a t) ->
           match e with
           | E -> Some (fun k -> assert false)
           | _ -> None }
and odd n =
  if n = 0 then false
  else even (n-1)

let _ =
  let n = 100_000 in
  Printf.printf "even %d is %B\n%!" n (even n)