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- Subject: Re: [Lua5.2] __len meta-method has two operand?
- From: Dirk Laurie <dirk.laurie@...>
- Date: Thu, 13 Oct 2011 08:35:37 +0200
2011/10/13 Xavier Wang <email@example.com>:
> Hi list :)
> I had notice a incompatible with Lua5.1 and Lua5.2-beta, that is in
> Lua 5.2 beta, the __len meta-method has two operand! though they are
> the same one (the userdata I used # operator),
The manual says:
> "len": the # operation.
> function len_event (op)
Why do you say the __len metamethod has two operands?