Strange counter-performance in an alternative `decimalLength9` function

[Stefan Koch]

On Wednesday, 26 February 2020 at 00:50:35 UTC, Basile B. wrote:
> So after reading the translation of RYU I was interested too 
> see if the decimalLength() function can be written to be 
> faster, as it cascades up to 8 CMP.
>
> [...]

It can be made faster using binary search. Not by much though.

You'll get ceil(log2(numberofplaces)) cmps.