Re: q: nil in tables

[Sean Conner <sean@...>]

It was thus said that the Great ThePhD once stated:
> Having nil in tables is also an immense conceptual boon for people who work
> with the C API and userdata. Having a userdata-specific `nil` was extremely
> sad for when you wanted to store your userdata in a table, because it
> messed with usual language semantics of `if t[key] then ... end`. Now, it
> works out of the box and both pairs() and ipairs() behaves just fine, and
> `nil` can be used as a proper `nullptr`-alike value!

  I'm not following, and I'm someone who uses the C API and userdata.  Can
you give an example of the problem?

  -spc