Re: why tostring for number use LUA_NUMBER_FMT "%.14g", not "%.16g" ?

[Dirk Laurie <dirk.laurie@...>]

2013/9/8 Coda Highland <chighland@gmail.com>:

> while tostring(tonumber(x)) can't be a guaranteed round-trip,
> tonumber(tostring(x)) CAN be, by making tostring() output enough
> digits.

For a certain meaning of "enough", yes. Is "enough" 17 digits,
though? Interesting but decidedly non-trivial question!