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On Wed, Jul 22, 2009 at 10:15 PM, Luiz Henrique de
Figueiredo<lhf@tecgraf.puc-rio.br> wrote:
> On the other hand, a case can be made for allowing
> it and then return that value when accessing tbl[nil].
>

If nil is allowed as a table key, then next() would have to use some
other value for the beginning and end of a table.