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On 26 February 2011 10:55, HyperHacker <> wrote:

> It's interesting to note that lua_isnumber returns true for strings
> that can be converted to numbers, so perhaps lua_isnil should return
> true for "no value", thus fulfilling the expectation that missing
> arguments and nil arguments are the same? You'd still be able to do
> (lua_isnil(L, n) && !lua_isnone(L, n)) if you wanted to differentiate
> the two for some reason.

That's what lua_isnoneornil(L, n) is for :-)