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[Caml-list] assertions or exceptions?
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Date: -- (:)
From: John Prevost <j.prevost@g...>
Subject: Re: [Caml-list] Unboxing options, was RE: assertions or exceptions?
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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