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- Subject: Re: When was the __pairs metamethod introduced?
- From: Marc Balmer <marc@...>
- Date: Tue, 12 Apr 2016 14:10:15 +0200
> Am 12.04.2016 um 14:05 schrieb Luiz Henrique de Figueiredo <lhf@tecgraf.puc-rio.br>:
>
>> Oh, I see. So there is __ipairs, too. Maybe that could be noted in the doc as well, http://www.lua.org/manual/5.3/manual.html#pdf-ipairs does not mention it, while http://www.lua.org/manual/5.3/manual.html#pdf-pairs does.
>
> In Lua 5.3, there is no __ipairs, though it is present for compatibility.
>
> http://www.lua.org/manual/5.3/readme.html#changes says:
>
> Libraries
> - ipairs and the table library respect metamethods
>
I see. Will the __ipairs metamethod eventually be removed? Should it be avoided in new code? Is the way to go to implement __pairs, __index, and, __newindex?
