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2016-05-16 14:47 GMT+02:00 Roberto Ierusalimschy <>:
>> > IMO, both Lua parser and tonumber() function should return correct
>> > float values in case of integer overflow.
>> > This can be done safely as it does not break the main feature of integers:
>> > integers will stay integers after tonumber(tostring(x)) conversion cycle.
>> Or nil.
> Some time ago I suggested 'inf' for these cases.

That would also be good. The test
    math.type(tonumber(inputstring)) == 'integer'
could be used to verify input.