Re: [Caml-list] optional arguments

[Selentek 24331-03 <epifanov@komset.ru>]

YES! Thanks for information.

On 10:13 Mon 17 Nov     , Richard Jones wrote:
> On Mon, Nov 17, 2003 at 11:52:49AM +0300, Selentek 24331-03 wrote:
> [...]
> 
> Like this?
> 
> # let f ?v () =
>   match v with
>   | Some i -> i + 1
>   | None   -> 0      ;;
> val f : ?v:int -> unit -> int = <fun>
> 
> # let v = Some 1;;
> val v : int option = Some 1
> 
> # f ?v ();;
> - : int = 2
> 
> # let v = None;;
> val v : 'a option = None
> 
> # f ?v ();;
> - : int = 0
> 
> Rich.
> 
> -- 
> Richard Jones. http://www.annexia.org/ http://freshmeat.net/users/rwmj
> Merjis Ltd. http://www.merjis.com/ - improving website return on investment
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