From: Neil Jerram <neil@ossau.uklinux.net>
To: Mark H Weaver <mhw@netris.org>
Cc: guile-devel <guile-devel@gnu.org>
Subject: Re: The cube of lisp booleans (#f nil () #t)
Date: Thu, 17 Sep 2009 23:17:40 +0100 [thread overview]
Message-ID: <87eiq5gqrf.fsf@ossau.uklinux.net> (raw)
In-Reply-To: <87ab1hql0j.fsf@netris.org> (Mark H. Weaver's message of "Sun, 30 Aug 2009 13:17:16 -0400")
Mark H Weaver <mhw@netris.org> writes:
> I wrote up a little summary about the new representation of lisp
> booleans. Maybe something like it will end up in the documentation of
> guile internals.
Really nice! Do you have ideas/preference for where this should go, or
would you like me to suggest?
> The pictures below are based on representing a value of N bits as an
> N-dimensional hypercube. In this scheme, the entire space of IFLAGS
> is currently a 4-dimensional hypercube, of which the lisp booleans are
> a 3-dimensional "slice". Fortunately, we need only think in
> 3-dimensions as long as we only consider the lisp booleans.
This description gives me confidence that your arrangement is the best
possible one. (As opposed to just being better than what we had
before.)
Regards,
Neil
prev parent reply other threads:[~2009-09-17 22:17 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-08-30 17:17 The cube of lisp booleans (#f nil () #t) Mark H Weaver
2009-09-17 22:17 ` Neil Jerram [this message]
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