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Re: [PATCH] Complex numbers with inexact zero imaginary part, etc


From: Andy Wingo
Subject: Re: [PATCH] Complex numbers with inexact zero imaginary part, etc
Date: Wed, 02 Feb 2011 21:30:38 +0100
User-agent: Gnus/5.13 (Gnus v5.13) Emacs/23.2 (gnu/linux)

Hi,

I just sent a mail I didn't mean to send, I said:

On Wed 02 Feb 2011 12:25, Mark H Weaver <address@hidden> writes:

> * libguile/numbers.c (scm_abs): (abs -0.0) now returns 0.0.
> Previously it returned -0.0.

I questioned this, but I think it's pretty fine, obviously; I meant to
ask about:

>   (scm_difference): (- 0 0.0) now returns -0.0.  Previously it returned
>   0.0.  Also make sure that (- 0 0.0+0.0i) will return -0.0-0.0i.

Is this right?  I can convince myself both ways.

Regards,

Andy
-- 
http://wingolog.org/



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