Re: Using unpack() twice in a single function call

["Aaron Brown" <arundelo@...>]

Hugo wrote:

>     F(unpack(a), unpack(b))

> Is there any way to use more than one unpack() in a single
> function call?

As Andreas pointed out, everything but the last expression
gets adjusted to one value.

You might find something like this useful:

-- Like unpack, but accepts multiple arguments:
function multunpack(...)
 local ret = {}
 for i = 1, select("#", ...) do
   for _, rec in ipairs(select(i, ...)) do
     ret[#ret + 1] = rec
   end -- _, rec
 end -- i
 return unpack(ret)
end -- multunpack

> print(multunpack({23, 45}, {-1, -2}))
23      45      -1      -2

--
Aaron