On Jan 2, 2008 8:16 AM, Reuben Thomas <rrt@sc3d.org> wrote:

`It would make it easier to write portable code for Lua if there
``were maxima
``and minima for the number types, say LUA_NUMBER_MAX,
``LUA_NUMBER_MIN &c. For
`a default configured system, one can of course use the limits for the

`default types, ptrdiff_t and double respectively, but that's not
``portable to
`systems using non-default types.
--
http://rrt.sc3d.org/

`memoir, n. a lie that flatters the author's ego and the reader's
``intellect
`

The maximum value, as in highest possible exponent, or highest
possible integer mantissa? The two are noticably different. With 64
bit double-precision, the maximum number is 1.7976931348623157 x
10^308, however the 53 bit mantissa loses resolution about
9007199254740991.
A nice way to verify that second number would be this:
function maxluanumber()
local x = 1
while x < x +1 do
x = x * 2
end
return x
end