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Re: Immediate doubles (up to 2^256) and rationals coming to Guile 3


From: tomas
Subject: Re: Immediate doubles (up to 2^256) and rationals coming to Guile 3
Date: Thu, 6 Jun 2019 22:09:03 +0200
User-agent: Mutt/1.5.21 (2010-09-15)

On Thu, Jun 06, 2019 at 05:40:39AM -0400, Mark H Weaver wrote:
> I've found a way to efficiently support both immediate IEEE binary-64
> doubles up to ~1.158e77 (with larger ones transparently allocated on the
> heap), and also immediate exact rationals with up to 54 binary digits
> (~16 decimal digits), without restricting the 64-bit pointer space at
> all, and without any loss of arithmetic precision.

[...]

Impressive bitfiddling feat. Thanks for the enjoyable explanation, too!

Cheers
-- t

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