Re: [Json] -0.0

[John Cowan <[e-mail]>]

Tim Bray scripsit:

> Hm, I bet that there are languages that look at the JSON number and
> if there's no exp or frac parts, jam it into an integer; do modern
> *integer* implementations preserve negative zero?

By definition, no language that provides a exact representation of
numbers (whether fixed-point or integral) can differentiate 0 and -0.
It is because floating-point values represent *ranges* of numbers that
it makes sense to differentiate between too-small numbers that cannot
be negative (0.0) and too-large numbers that cannot be positive (-0.0).

-- 
John Cowan  [e-mail]  http://ccil.org/~cowan
The competent programmer is fully aware of the strictly limited size of his own
skull; therefore he approaches the programming task in full humility, and among
other things he avoids clever tricks like the plague.  --Edsger Dijkstra