From: Dylan William Hardison <dylan@hardison.net>
To: caml-list@yquem.inria.fr
Subject: Re: [Caml-list] "OCaml gives you only monomorphic methods in classes."
Date: Fri, 28 Dec 2007 23:31:02 -0500 [thread overview]
Message-ID: <20071229043102.GA22870@hardison.net> (raw)
In-Reply-To: <200712282337.23952.jon@ffconsultancy.com>
Spake Jon Harrop on Friday, December 28, 2007 at 11:37PM +0000:
>
> I just read this quote and I do not understand what it means:
>
> "In particular, the Hindley/Milner style of type inference used in languages
> such as OCaml or Haskell is incompatible with lots of assumptions of OO
> languages. One incompatibility is with overloading. That's why OCaml does not
> let you write + for both integer and floating point addition. Another
> incompatibility is with higher order polymorphism. That's why OCaml gives you
> only monomorphic methods in classes." - Martin Odersky
This seems correct for O'Caml (and SML?) but not Haskell.
Haskell's type system is extended with type classes, which allow + and such to
be overloaded...
--
"Regardless of the legal speed limit, your Buick must be operated at
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next prev parent reply other threads:[~2007-12-29 4:31 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-12-28 23:37 Jon Harrop
2007-12-28 23:55 ` [Caml-list] " Gordon Henriksen
2007-12-29 0:27 ` Jon Harrop
2007-12-29 1:19 ` Gordon Henriksen
2007-12-29 1:30 ` Jon Harrop
2007-12-31 14:02 ` Kuba Ober
2007-12-29 4:31 ` Dylan William Hardison [this message]
2007-12-29 7:09 ` Jon Harrop
2007-12-29 6:30 ` brogoff
2007-12-29 7:11 ` Jon Harrop
2007-12-29 16:57 ` brogoff
2008-01-08 2:30 ` Jacques Garrigue
2008-01-08 9:42 ` Jon Harrop
2008-01-08 13:45 ` Peng Zang
2008-01-08 17:29 ` brogoff
2008-01-08 21:25 ` Paolo Donadeo
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