From mboxrd@z Thu Jan 1 00:00:00 1970 Received: (from majordomo@localhost) by pauillac.inria.fr (8.7.6/8.7.3) id UAA31094; Fri, 23 Apr 2004 20:28:06 +0200 (MET DST) X-Authentication-Warning: pauillac.inria.fr: majordomo set sender to owner-caml-list@pauillac.inria.fr using -f Received: from nez-perce.inria.fr (nez-perce.inria.fr [192.93.2.78]) by pauillac.inria.fr (8.7.6/8.7.3) with ESMTP id UAA31236 for ; Fri, 23 Apr 2004 20:28:04 +0200 (MET DST) Received: from gatekeeper.elmer.external.excelhustler.com (gatekeeper.excelhustler.com [68.99.114.105]) by nez-perce.inria.fr (8.12.10/8.12.10) with ESMTP id i3NIS3jq008971 for ; Fri, 23 Apr 2004 20:28:03 +0200 Received: from chatterbox.elmer.internal.excelhustler.com (unknown [192.168.0.12]) (using TLSv1 with cipher EDH-RSA-DES-CBC3-SHA (168/168 bits)) (Client CN "chatterbox.elmer.internal.excelhustler.com", Issuer "excelhustler.com" (not verified)) by gatekeeper.elmer.external.excelhustler.com (Postfix) with ESMTP id 56042E016C; Fri, 23 Apr 2004 13:28:02 -0500 (CDT) Received: from localhost (localhost [127.0.0.1]) by chatterbox.elmer.internal.excelhustler.com (Postfix) with ESMTP id 2218D5C006; Fri, 23 Apr 2004 13:28:02 -0500 (CDT) Received: from wile.internal.excelhustler.com (wile.internal.excelhustler.com [192.168.1.34]) by chatterbox.elmer.internal.excelhustler.com (Postfix) with ESMTP id EE75C5C005; Fri, 23 Apr 2004 13:28:01 -0500 (CDT) Received: by wile.internal.excelhustler.com (Postfix, from userid 1000) id E7EDE3608C; Fri, 23 Apr 2004 13:28:01 -0500 (CDT) Date: Fri, 23 Apr 2004 13:28:01 -0500 From: John Goerzen To: Oliver Bandel Cc: caml-list@inria.fr Subject: Re: [Caml-list] Should be INSIDE STANDARD-LIB: Hashtbl.keys Message-ID: <20040423182801.GA4117@excelhustler.com> References: <20040421011904.GA1411@first.in-berlin.de> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20040421011904.GA1411@first.in-berlin.de> User-Agent: Mutt/1.5.5.1+cvs20040105i X-Scanned-By: clamscan at chatterbox.elmer.internal.excelhustler.com X-Miltered: at nez-perce by Joe's j-chkmail ("http://j-chkmail.ensmp.fr")! X-Loop: caml-list@inria.fr X-Spam: no; 0.00; caml-list:01 hashtbl:01 2004:99 oliver:01 bandel:01 hash:01 hashtbl:01 hash:01 0200,:01 module:03 wrote:03 let:04 let:04 fold:07 fun:08 Sender: owner-caml-list@pauillac.inria.fr Precedence: bulk On Wed, Apr 21, 2004 at 03:19:04AM +0200, Oliver Bandel wrote: > I only think, this is such an often used function, that > it should be integrated into the Hastbl-module. You may be interested that Missinglib, which I will announce here shortly, has this in its Hashtblutil module: let map f hash = Hashtbl.fold (fun key value l -> (f key value) :: l) hash [];; let keys hash = map (fun key value -> key) hash;; let values hash = map (fun key value -> value) hash;; let items hash = map (fun key value -> key, value) hash;; let length hash = List.length (keys hash);; ------------------- To unsubscribe, mail caml-list-request@inria.fr Archives: http://caml.inria.fr Bug reports: http://caml.inria.fr/bin/caml-bugs FAQ: http://caml.inria.fr/FAQ/ Beginner's list: http://groups.yahoo.com/group/ocaml_beginners