From: Brian Hurt <bhurt@spnz.org>
To: Jacques Garrigue <garrigue@kurims.kyoto-u.ac.jp>
Cc: skaller@tpg.com.au, <caml-list@inria.fr>
Subject: Re: [Caml-list] Stupid question
Date: Thu, 15 Jan 2004 20:35:56 -0600 (CST) [thread overview]
Message-ID: <Pine.LNX.4.44.0401152031190.4373-100000@localhost.localdomain> (raw)
In-Reply-To: <20040116094357V.garrigue@kurims.kyoto-u.ac.jp>
On Fri, 16 Jan 2004, Jacques Garrigue wrote:
> From: skaller <skaller@tpg.com.au>
> Yes indeed.
> But the compiler is clever enough to use specific comparison functions
> when the type is known to be int or float.
> Since bool looks like a subset of int, one might expect it to be
> optimised also. However, bool is just a normal sum type, and since
> some sum types have non-constant constructors, in general sum types
> require a recursive comparison operation.
> For types where constructors are constant, this might be optimised...
OK. This makes more sense. Well, except for the nitpicking detail that
true and false are not valid variant type identifiers, they should be True
and False.
--
"Usenet is like a herd of performing elephants with diarrhea -- massive,
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- Gene Spafford
Brian
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next prev parent reply other threads:[~2004-01-16 1:34 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-01-15 0:03 Brian Hurt
2004-01-15 3:57 ` skaller
2004-01-15 6:13 ` Brian Hurt
2004-01-15 8:37 ` Christophe Raffalli
2004-01-16 0:43 ` Jacques Garrigue
2004-01-16 2:35 ` Brian Hurt [this message]
2004-01-16 8:40 ` Hendrik Tews
2004-01-16 10:25 ` Frederic van der Plancke
2004-01-16 12:07 ` Alex Baretta
2004-01-16 5:41 ` Nicolas Cannasse
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