Implement the "unum" representation in D ?

[Ivan Kazmenko]

On Saturday, 22 February 2014 at 14:17:23 UTC, Ivan Kazmenko 
wrote:
> Sometimes there is a non-degenerate pre-period part before the 
> period:
> 13/10 = 1.0100110011 = 1.0(1001) as a binary fraction, the 
> "1.0" part being the pre-period and the "(1001)" part the 
> period.  The same goes for decimal fractions.

Sorry, I meant 13/10 = 1.0100110011..., that is, the "1001" part 
repeating forever - as opposed to just stopping at 10-th bit of 
the fraction.