From: Matthias Koeppe <mkoeppe@mail.math.uni-magdeburg.de>
Cc: guile-devel@gnu.org, marius.vollmer@uni-dortmund.de
Subject: Re: The new class fraction
Date: Wed, 26 Nov 2003 11:38:48 +0100 [thread overview]
Message-ID: <uw54qwrza6f.fsf@merkur.math.uni-magdeburg.de> (raw)
In-Reply-To: <xy7ptfg6s0l.fsf@chunk.mit.edu> (Mikael Djurfeldt's message of "Tue, 25 Nov 2003 16:46:18 -0500")
Mikael Djurfeldt <mdj@mit.edu> writes:
> Mikael Djurfeldt <mdj@mit.edu> writes:
>
>> 2003-11-18 Marius Vollmer <marius.vollmer@uni-dortmund.de>
>>
>> * objects.c (scm_class_fraction): New.
>>
>> It is great to have rational numbers in Guile's number tower.
>>
>> However, why have you chosen the type name "fraction" rather than
>> "rational" as is the name used in for example Common Lisp?
>>
>> I suggest quickly changing the name to <rational> before <fraction>
>> sticks.
>
> Hmm... on second consideration. Probably we should keep <fraction> as
> the concrete class representing fractions and introduce the abstract
> class <rational>, with subclasses <integer> and <fraction> so that
> membership of class <rational> is equivalent to the result of a call
> to the predicate rational?.
Actually, the name of the concrete class representing fractions is
called RATIO in Common Lisp. It is a subclass of RATIONAL.
--
Matthias Koeppe -- http://www.math.uni-magdeburg.de/~mkoeppe
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prev parent reply other threads:[~2003-11-26 10:38 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-11-25 21:23 The new class fraction Mikael Djurfeldt
2003-11-25 21:46 ` Mikael Djurfeldt
2003-11-26 10:38 ` Matthias Koeppe [this message]
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