Re: FW: lua_isnumber modifying variables

[RLake@...]

> I can work around this by calling lua_type instead of lua_isnumber, but
it
> doesn't seem right that lua_isnumber should modify the variable it is
> testing - is this behaviour correct?

Yes, it is "correct" and it is documented.

The idea is that most functions which are looking for a number would like
to use the Lua coercion protocol, so lua_isnumber implements that. Calling
lua_type is the indicated solution.