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[Caml-list] static variables in a function
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Date: -- (:)
From: Yutaka OIWA <oiwa@y...>
Subject: Re: [Caml-list] static variables in a function
>> On Fri, 14 Jun 2002 10:08:30 -0700 (PDT), Shannon --jj Behrens <jjinux@yahoo.com> said:

Shannon> Hi,
Shannon> What is the correct OCAML idiom for achieving the
Shannon> following psuedocode?

Shannon> let get_chunk () =
Shannon>   static chunks_list;

Shannon>   if List.is_empty chunks_list
Shannon>   then chunks_list = get_more_chunks ();
Shannon>   shift chunks_list
Shannon> ;;

How about this?

let get_chunk =
  let chunks_list = ref [] in
  fun () ->
    ...

-- 
Yutaka Oiwa              Yonezawa Lab., Dept. of Computer Science,
      Graduate School of Information Sci. & Tech., Univ. of Tokyo.
      <oiwa@yl.is.s.u-tokyo.ac.jp>, <yutaka@oiwa.shibuya.tokyo.jp>
PGP fingerprint = C9 8D 5C B8 86 ED D8 07  EA 59 34 D8 F4 65 53 61
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