Re: luaL_checkudata for invalid index?

[Philipp Janda <siffiejoe@...>]

Am 21.02.2013 22:42, schrieb Sean Conner:
> [...]
>
>    -spc (So, why does it trigger on parameter 3 first?  Because of the rules
> 	of C when evaluating parameters of a function---they're evaluated
> 	from right to left.  Why that way?  I'll leave that as an exercise
> 	for the reader ... )

That was a trick question, of course. And the answer is: Bad Luck!
According to C89, 3.3.2.2 "Function calls":
> [...]
>    The order of evaluation of the function designator, the arguments,
> and subexpressions within the arguments is unspecified, but there is a
> sequence point before the actual call.

Philipp