Faster printing of floats; is this something that D could benefit from?

[Eugene Wissner]

On Saturday, 28 July 2018 at 16:02:22 UTC, Gary Willoughby wrote:
> I just saw this on hacker news:
>
>> We present Ryū, a new routine to convert binary floating point 
>> numbers to their decimal representations using only fixed-size 
>> integer operations, and prove its correctness. Ryū is simpler 
>> and approximately three times faster than the previously 
>> fastest implementation.
>
> Links:
>
> https://pldi18.sigplan.org/event/pldi-2018-papers-ry-fast-float-to-string-conversion
> https://www.youtube.com/watch?v=kw-U6smcLzk
> https://github.com/ulfjack/ryu

Thanks, it looks very interesting (and hey, it is a bit too late, 
I've just finished to implement errol in D today :)).

After a fast look at the texts, I can't find information about 
the optimality. They compare ryu mostly to grisu and grisu 
produces always correct, but not always optimal results, so it 
fallbacks to a slower algorithm for some values.
It would be also nice to have some paper; I see only videos. 
Maybe a paper will come soon.