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> That seems to work. The original test finishes normally with it. When I
> tried to insert more than 0x7ffffff values, the process quickly allocated
> so much memory that the OS started to page very busily, so after 10-15
> minutes of waiting I interrupted that. I then tried to use the # operator,
> which gave me a negative number: -2147483615. Then I scanned the table in a
> loop looking for the max key value, and I found it was 2147483681. This is
> the unsigned 32-bit interpretation of the same binary value. Given this, I
> suspect that # uses a signed 32-bit integer internally, so if I had much
> more RAM, I would probably make that overflow even more, into a small
> positive number.

The problem seems to be simply the return types of 'luaH_getn' and
'unbound_search'. (Again, I have no way to test it.) Both operate
internally with unsigned integers, but are returning signed integers.

-- Roberto