Can lua_next() error?

[Tom Sutcliffe <tomsci@...>]

Hi list,

I've been reviewing some of my native code for safety and noticed that I've been assuming lua_next() will not raise arbitrary errors. In the 5.3 documentation however, lua_next is listed as 'e' meaning it can.

I couldn't think of any obvious reason how it could error, since there is no metamethod to override a next iteration, and I couldn't see anything in the implementation that would trigger an __index. Am I missing something or is the documentation incorrect?

Thanks,

Tom