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- Subject: Re: use of gettop to change functionality
- From: Renato Maia <maia@<a href="/cgi-bin/echo.cgi?inf.puc-rio.br">...</a>>
- Date: Wed, 2 Mar 2011 08:51:50 -0300
On 2 Mar 2011, at 05:43, steve donovan wrote:
However, a simple C extension P could be written that could make 'for
i,v in P(...) do' pretty optimal - it's very efficient to access
multiple arguments in C.
I don't know about how optimal it is, but anyone interested can take a
look at library 'vararg' (http://luarocks.org/repositories/rocks/
#vararg) that allows you to do:
for i, v in vararg.pack(...) do
It creates an new closure for each call of 'vararg.pack' and the
number of elements in the '...' cannot exceed 254 elements.