From: Martin Jambon <martin_jambon@emailuser.net>
To: caml-list@inria.fr
Subject: Re: [Caml-list] Suggestion: Pervasives.identity
Date: Fri, 23 Apr 2004 21:26:20 +0800 (HKT) [thread overview]
Message-ID: <Pine.LNX.4.44.0404232101110.2204-100000@localhost> (raw)
In-Reply-To: <20040423145614.C3686@pauillac.inria.fr>
On Fri, 23 Apr 2004, Xavier Leroy wrote:
> Even if you define
> external identity: 'a -> 'a = "%identity"
> references to "identity" will be compiled like "fun x -> x".
> It's only direct applications of "identity", e.g. "identity 3", that
> would be more efficient than with the definition
> let identity x = x
> But I hope your programs don't contain calls like "identity x"...
My problem was:
(* something.mli *)
type key
(* something.ml *)
type key = int
let key_of_int = identity (** what should I write here? **)
(* other.ml *)
let key = Something.key_of_int 1
Sure, there are more important problems in the world...
Martin
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next prev parent reply other threads:[~2004-04-23 13:26 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-04-23 12:18 Martin Jambon
2004-04-23 12:56 ` Xavier Leroy
2004-04-23 13:26 ` Martin Jambon [this message]
2004-04-23 15:48 ` Brian Hurt
2004-04-23 16:26 ` Richard Jones
2004-04-24 2:09 ` skaller
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