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Re: Rational

From: Hans Åberg
Subject: Re: Rational
Date: Tue, 22 May 2018 21:45:03 +0200

> On 22 May 2018, at 21:10, Hans Åberg <address@hidden> wrote:
>> On 22 May 2018, at 20:45, David Kastrup <address@hidden> wrote:
>> LilyPond's "rational" type should indeed get replaced
>> by Guile's rational types which would seriously shift the threshold
>> where things start breaking apart at the cost of efficiency.
>> That's quite a lot of tedious work (I have some started patches for
>> different approaches to that) but of course if its seminal for someone's
>> _own_ work, the motivation for finishing that might be larger.
> Guile uses GMP internally, and it might be fairly easy to change the class 
> Rational to use GMP. Have you considered that?

Actually, I wrote an C++ interface for Guile [1], which includes the numbers, 
exact and inexact. The root class holds a reference to a SCM object. In Guile, 
integers and rational numbers are merged, so that should probably be so in such 
an interface.


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