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2014-04-23 11:53 GMT+02:00 Lukas Prokop <admin@lukas-prokop.at>:

> Now my point is that we can use this as indices.

I misunderstood your point. You mean indices for the string library,
not indexing in a table. In that case, indices are converted to integers.

    The Lua value must be an integer, or a number or string convertible
    to an integer (see §3.4.3); otherwise, lua_tointegerx returns 0.

Since infinity is not an integer, it is treated as 0.