Re: select("#", ...) idiom

[Michael Roth <mroth@...>]

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Rici Lake wrote:

> In any event, there are few use cases for finding the argument count which
> do not involve iterating over the arguments; I would far rather have:
>
>   for i, arg in ieach(...) do process(arg) end

Hmm, could not be written with the ... operator but a table (classic
'arg' style) must be created:


  function ieach(...)
    local function f(arg, index)
      if index < arg.n then
        index = index + 1
        return index, arg[index]
      end
    end
    return f, arg, 0
  end


The above code should work with both 5.0.2 and 5.1-alpha.


cu

Michael
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