Re: vararg asymmetry

["John Belmonte" <jvb@...>]

Michael Flad wrote:
> may not be the fastest way, but a recursive unpack should
> work?

"Wow, I didn't realize...".  The recursion is unfortunate however since the
stack is already being chewed up passing the list.  I still think expand is
useful enough to warrant an efficient implementation in the library.
Besides return arguments, it is also useful in place of call (when
protection is not required) because it's more readable.  Consider:

    call(myfunc, args)

versus

   myfunc(expand(args))


Thanks for the tip,
-John


function expand_r(table, from, to)
    if from < to then
        return table[from], expand_r(table, from+1, to)
    else
        return table[from]
    end
end

function expand(table)
    return expand_r(table, 1, getn(table))
end

print(expand({"hey", 2, {}}))