From: "David Allsopp" <dra-news@metastack.com>
To: <luc.maranget@inria.fr>
Cc: "'bluestorm'" <bluestorm.dylc@gmail.com>,
<caml-list@yquem.inria.fr>,
"'W Dan Meyer'" <wojciech.meyer@googlemail.com>
Subject: RE: [Caml-list] Converting variants with only constant constructors to integers
Date: Tue, 8 Jun 2010 10:45:20 +0100 [thread overview]
Message-ID: <015f01cb06ef$500b4f60$f021ee20$@romulus.metastack.com> (raw)
In-Reply-To: <20100608093651.GA8296@yquem.inria.fr>
Luc Maranget wrote:
> Of course, if you have the following:
> >
> > type t = A | B | C
> > let int_of_t = function
> > A -> 0
> > | B -> 1
> > | C -> 2
> >
> > Then in fact I believe that the compiler already converts that to a
> > hashtable lookup instead of a sequence of jumps..
>
> The compiler does not convert the above code to 'hashtable lookup'.
Is there a point where the compiler does do a table lookup for matches
rather than jumps or have I clearly just dreamt that? :o)
David
next prev parent reply other threads:[~2010-06-08 9:45 UTC|newest]
Thread overview: 23+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-06-07 18:07 Török Edwin
2010-06-07 18:25 ` [Caml-list] " W Dan Meyer
2010-06-07 18:45 ` bluestorm
[not found] ` <87sk4y7lc7.fsf@gmail.com>
[not found] ` <4C0D3B0F.4060502@gmail.com>
2010-06-07 18:32 ` Török Edwin
2010-06-07 18:50 ` W Dan Meyer
2010-06-07 18:48 ` David Allsopp
2010-06-07 19:46 ` Török Edwin
2010-06-07 19:56 ` bluestorm
2010-06-07 22:51 ` W Dan Meyer
2010-06-08 7:42 ` David Allsopp
2010-06-08 7:59 ` bluestorm
2010-06-08 9:14 ` David Allsopp
2010-06-08 9:36 ` Luc Maranget
2010-06-08 9:45 ` David Allsopp [this message]
2010-06-08 9:51 ` Luc Maranget
2010-06-08 10:21 ` David Allsopp
2010-06-08 10:21 ` Dario Teixeira
2010-06-08 11:28 ` Kaustuv Chaudhuri
2010-06-08 11:40 ` bluestorm
2010-06-08 14:37 ` Jacques Garrigue
2010-06-08 18:22 ` Kaustuv Chaudhuri
2010-06-09 1:34 ` Jacques Garrigue
2010-08-23 14:36 ` Damien Doligez
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