Re: negative exponents

Hi Nigel,


>    Date: Mon, 3 Nov 2003 10:48:04 +1000
>    From: [email protected]
> Subject: negative exponents in negative doubles
>
> why does in IDE
> (setf z 4.0D-5)
> echo
> 4.0d-5
>
> while
> (setf zz -4.0D-5)
> echo
> -4.0d0

	Whoa... I reproduced your example.  An even simpler version is:

	Try evaluating

-1e+5
echo
0.0

	It seems that any negative number for the mantissa will fail, 
regardless of the exponent.

	This is really bad!  I'm hoping to do some scientific computing in 
CormanLisp.

	Any patches or suggestions?  My problem is my code might accidently 
parse text data with -1e+5 without my knowing, and without returning an 
error, and then evaluating it to 0.0.

Sincerely,
--Anthony Yan


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