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

[Gary Willoughby]

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