From: Ville-Pertti Keinonen <will@exomi.com>
To: Danny Yoo <dyoo@hkn.eecs.berkeley.edu>
Cc: "Rafael 'Dido' Sevilla" <dido@imperium.ph>,
John Goerzen <jgoerzen@complete.org>,
caml-list@inria.fr
Subject: Re: [Caml-list] Observations on OCaml vs. Haskell
Date: Tue, 28 Sep 2004 10:22:51 +0300 [thread overview]
Message-ID: <4159114B.7030200@exomi.com> (raw)
In-Reply-To: <Pine.LNX.4.44.0409271417390.20651-100000@hkn.eecs.berkeley.edu>
Danny Yoo wrote:
>only ints. I think OCaml's arithmetic operators are monomophic to avoid
>the cost of polymorphism.
>
>
I'm fairly certain that type safety is a significant part of the reason;
if they were polymorphic, they'd accept any kind of arguments, not just
numbers. What's the product of two strings? A run-time type error?
Haskell doesn't suffer from this because it has type classes.
There are other type-safe ways to address the issue - SML uses
overloading, with a fallback type of int for cases where the type of the
expression can't be determined:
- fun f x y = x + y;
val f = fn : int -> int -> int
- fun f (x : real) y = x + y;
val f = fn : real -> real -> real
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next prev parent reply other threads:[~2004-09-28 7:23 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-09-27 19:08 John Goerzen
2004-09-27 20:24 ` Rafael 'Dido' Sevilla
2004-09-27 21:34 ` Danny Yoo
2004-09-28 7:22 ` Ville-Pertti Keinonen [this message]
2004-09-28 18:02 ` Jon Harrop
2004-09-29 14:26 ` Brian Hurt
2004-09-29 14:20 ` Jon Harrop
2004-09-29 15:03 ` Dmitry Lomov
2004-09-28 10:10 ` [Caml-list] Caml monomorphisation (was Observations on OCaml vs. Haskell) Diego Olivier Fernandez Pons
2004-09-28 12:01 ` Richard Jones
2004-09-28 17:50 ` Jon Harrop
2004-09-28 1:56 ` [Caml-list] Observations on OCaml vs. Haskell skaller
2004-09-28 9:31 ` Keith Wansbrough
2004-09-28 9:55 ` Rafael 'Dido' Sevilla
2004-09-27 21:11 ` Christophe TROESTLER
2004-09-28 1:32 ` Jacques GARRIGUE
2004-09-28 1:46 ` skaller
2004-09-28 8:27 ` Richard Jones
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