Re: ipairs in Lua 5.3.0-alpha

[Sean Conner <sean@...>]

It was thus said that the Great Dirk Laurie once stated:
> 2014-08-19 18:45 GMT+02:00 Sean Conner <sean@conman.org>:
> >   Now, __pairs or __ipairs don't exist in Lua 5.1 and of the two, I regret
                                              ^^^^^^^

> > not having __pairs.  I can work around __ipairs with
> >
> >         for i = 1 , #userdata do ... end
> >
> > __pairs, not so much [1].
> >
> >   -spc
> >
> > [1]     Okay, I can work around it with a very clumsy:
> >
> >                 udindex = { 'foo' , 'bar' , 'baz' }
> >                 for _,idx in ipairs(udindex) do
> >                   local item = userdata[idx]
> >                   ...
> >                 end
> 
> Doesn't
> 
>    for k,v in userdata:__pairs() do
> 
> where __pairs sits in you userdata's __index, do it?

  -spc (Lua 5.1 only for now ... )