> the sign is useful, eg: I was referring to the output of the function, once the float number is converted to string.
Example:
fmtFloat(-0.0, 2) == "0.00"
Run
> decimalSep: should be char, not string
Yes, I was going to use chars for the separators but I used strings to have the
option of using as separators unicode symbols if necessary, very remote case,
not sure if it's really necessary...
