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> Although 5.2 now allows '#' operator overloading on public interfaces
> of table-based objects via __len, I'm not seeing why this change [1]
> also affected the table library, whose low-level functions have not
> been applicable to those public interfaces.  What is the use case for
> the table library change?  The only reasons I can think of are (low
> level) algorithmic ones of questionable utility:

The main motivation is to allow what Rapin just suggested in a message
to this thread.

-- Roberto