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 RAA08083; Wed, 10 Jul 2002 17:39:49 +0200 (MET DST) X-Authentication-Warning: pauillac.inria.fr: majordomo set sender to owner-caml-list@pauillac.inria.fr using -f Received: from concorde.inria.fr (concorde.inria.fr [192.93.2.39]) by pauillac.inria.fr (8.7.6/8.7.3) with ESMTP id RAA08079 for ; Wed, 10 Jul 2002 17:39:48 +0200 (MET DST) Received: from sunny.pacific.net.au (sunny.pacific.net.au [203.25.148.40]) by concorde.inria.fr (8.11.1/8.11.1) with ESMTP id g6AFdkn01845 for ; Wed, 10 Jul 2002 17:39:47 +0200 (MET DST) Received: from wisma.pacific.net.au (wisma.pacific.net.au [210.23.129.72]) by sunny.pacific.net.au with ESMTP id g6AFdgSs012070; Thu, 11 Jul 2002 01:39:42 +1000 (EST) Received: from ozemail.com.au (ppp210.dyn17.pacific.net.au [61.8.17.210]) by wisma.pacific.net.au with ESMTP id BAA24762; Thu, 11 Jul 2002 01:39:36 +1000 (EST) Message-ID: <3D2C5538.2090901@ozemail.com.au> Date: Thu, 11 Jul 2002 01:39:36 +1000 From: John Max Skaller User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:0.9.2.1) Gecko/20010901 X-Accept-Language: en-us MIME-Version: 1.0 To: Oleg CC: caml-list@inria.fr Subject: Re: [Caml-list] productivity improvement References: <200207081952.PAA28813@hickory.cc.columbia.edu> Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit Sender: owner-caml-list@pauillac.inria.fr Precedence: bulk Oleg wrote: >What are the _simplest_ examples that demonstrate considerable (> 2:1) O'Caml >vs C++ productivity improvement (in terms of program size) and where can I >find them? > Try doing this in C++: type 'a node = Leaf of 'a | Unop of ('a->'a) * node | Binop of ('a * 'a -> 'a) let rec eval n = match n with | Leaf i -> i | Unop (f,n) -> f (eval n) | Binop (f,n1,n2) -> f ((eval n1), (eval n2)) [Hint: it cannot be done without one of: a) casts, or b) serious difficulties wth memory management ] -- John Max Skaller, mailto:skaller@ozemail.com.au snail:10/1 Toxteth Rd, Glebe, NSW 2037, Australia. voice:61-2-9660-0850 ------------------- 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