--Jens     [via iPhone]

> On Apr 15, 2016, at 4:26 PM, Dmitri Gribenko <griboz...@gmail.com> wrote:
> 
> The distance is signed so that we can represent negative distances.
> r.distance(from:to:) should be able to measure distances backwards.

Yeah, makes sense in general, just not for this particular case...
> 
> We are aware of this issue, but we don't know of a good solution.
> We'd appreciate your suggestions.

Add Int128! ;-)

Ok, maybe that just pushes the problem further down the road. How about making 
Distance be Double? ;-)

--Jens

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