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Re: The new class fraction

From: Matthias Koeppe
Subject: Re: The new class fraction
Date: Wed, 26 Nov 2003 11:38:48 +0100
User-agent: Gnus/5.090024 (Oort Gnus v0.24) Emacs/21.3.50 (usg-unix-v)

Mikael Djurfeldt <address@hidden> writes:

> Mikael Djurfeldt <address@hidden> writes:
>> 2003-11-18  Marius Vollmer  <address@hidden>
>>      * 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 --

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