From: John Prevost <j.prevost@gmail.com>
To: Brian Hurt <bhurt@spnz.org>
Cc: Ocaml Mailing List <caml-list@inria.fr>
Subject: Re: [Caml-list] Unboxing options, was RE: assertions or exceptions?
Date: Thu, 15 Jul 2004 13:20:00 -0400 [thread overview]
Message-ID: <d849ad2a0407151020725c3fb9@mail.gmail.com> (raw)
In-Reply-To: <Pine.LNX.4.44.0407151015180.4202-100000@localhost.localdomain>
On Thu, 15 Jul 2004 10:38:14 -0500 (CDT), Brian Hurt <bhurt@spnz.org> wrote:
> One of the problems with returning error conditions instead of throwing
> exceptions is the cost of boxing a 'a option. I'd like to advocate for
> the idea of unboxing 'a options.
This has been discussed before. The essential problem is this:
Currently:
type 'a option is not the same as type 'a option option
Some Some 1 is not the same as Some 1
Some None is not the same as None
With unboxed options:
type 'a option is the same as type 'a option option
Some Some 1 is identical to Some 1
Some None is identical to None
John.
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next prev parent reply other threads:[~2004-07-15 17:20 UTC|newest]
Thread overview: 35+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-07-15 8:03 [Caml-list] " Radu Grigore
2004-07-15 10:18 ` Richard Jones
2004-07-15 10:28 ` Daniel Andor
2004-07-15 12:49 ` Radu Grigore
2004-07-15 13:33 ` Richard Jones
2004-07-15 13:58 ` Radu Grigore
2004-07-16 18:53 ` Aleksey Nogin
2004-07-17 2:55 ` John Prevost
2004-07-17 14:24 ` David MENTRE
2004-07-15 12:35 ` Jon Harrop
2004-07-15 13:45 ` Radu Grigore
2004-07-15 14:33 ` Jon Harrop
2004-07-15 15:05 ` Radu Grigore
2004-07-15 16:24 ` skaller
2004-07-15 15:38 ` [Caml-list] Unboxing options, was " Brian Hurt
2004-07-15 16:25 ` John Hughes
2004-07-15 17:00 ` Brian Hurt
2004-07-15 17:20 ` John Prevost [this message]
2004-07-15 19:14 ` Radu Grigore
2004-07-15 19:56 ` John Carr
2004-07-15 20:48 ` Brian Hurt
2004-07-15 20:49 ` John Carr
2004-07-15 21:15 ` John Prevost
2004-07-15 21:15 ` Karl Zilles
2004-07-15 21:26 ` Brian Hurt
2004-07-15 21:04 ` John Prevost
2004-07-15 21:17 ` skaller
2004-07-15 21:35 ` Brian Hurt
2004-07-15 21:51 ` skaller
2004-07-15 21:42 ` skaller
2004-07-16 0:35 ` Jacques GARRIGUE
2004-07-16 1:03 ` John Prevost
2004-07-16 2:00 ` Jacques GARRIGUE
2004-07-16 16:40 ` Xavier Leroy
2004-07-19 8:58 ` Damien Doligez
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