Hello, all.

 I suppose the following problem concerns "weak" types, but i don't see
 the reason (I have no assignment at all in this definitions !)

let toto =
  let id x = x
  in id id;;
(*
 val toto : '_a -> '_a = <fun>
             ^      ^

             why not " 'a " ?  
             
*)

toto 5;;
(* ok *)

toto (fun z -> z);;

(*
This expression has type 'a -> 'a but is here used with type int
*)

If i  remember Xavier's works, the "weak" types were necessary for
dealing with references, continuations/exceptions, and i/o streams,....

What's the problem with these gentle purely functional top-level 
definitions  ?



Pre Scriptum :

 I (still )  work with Objective Caml version 1.03

-- 
Pierre Casteran,

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[Serge Halimi, in "Les nouveaux chiens de garde" (Liber, ed.)]