Upon thinking about it, I think the case for `echo num.formatFloat(ffDecimial,
0)` is incorrect, and should be changed to be consistent with the intent of the
function.
The `0` option should produce a value (currently it would be `rounded`) with no
digits displayed.
`echo (10.456).formatFloat(ffDecimal, 0) -> 10`
`echo (10.556).formatFloat(ffDecimal, 0) -> 11`
Also, its current behavior is redundant, as it mimics the behavior of `echo
num.formatFloat()`. Thus, currently there is no way to use this function to
display no ('0') digits, which is inconsistent (and undocumented) with what a
user would expect of its behavior.
import strutils
let num = 10.5678
echo num.formatFloat()
echo num.formatFloat(ffDecimal, 0)
These revelations about how this one little function actually works, have all
been illuminated because of the effort we've engaged in to document it. How
much more will be revealed about all the other parts of the language once you
begin creating `full case tested` documentation?
