From: Richard Jones <rich@annexia.org>
To: Selentek 24331-03 <epifanov@komset.ru>
Cc: caml-list@inria.fr
Subject: Re: [Caml-list] optional arguments
Date: Mon, 17 Nov 2003 10:13:17 +0000 [thread overview]
Message-ID: <20031117101317.GA21166@redhat.com> (raw)
In-Reply-To: <20031117085249.GA11793@inv_machine>
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.
--
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next prev parent reply other threads:[~2003-11-17 10:13 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-11-17 8:52 Selentek 24331-03
2003-11-17 10:13 ` Richard Jones [this message]
2003-11-17 10:44 ` Selentek 24331-03
2003-11-17 10:13 ` Artem Prisyznuk
2003-11-17 17:24 ` Brian Hurt
2008-11-09 19:17 Optional arguments malc
2008-11-09 19:51 ` [Caml-list] " David Teller
2008-11-10 20:52 ` malc
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