Re: Return a variable number of values from function

[Thiago Conde Figueiro <thiago@...>]

On Mon, 19 Nov 2001 01:11:38 +0100, "Matthias Gall" <matthias@sechsta-sinn.de> wrote:

MG> So, I tried this with a C function, which is registered properly. It pushes
MG> some random values and returns the number of values (lua_pushnumber(MyState,
MG> iRandomNumber); ... return iNumOfNumbers;). Using getn on the result of this
MG> function leads to a LUA_ERRRUN. Any suggestions?

	Yes.  What getn() really does it look up the table for a field named "n".

>   return {6, "hello", {}, 32}

	No field name 'n' on that table, so getn() fails.  Instead you should do something like

function foo()
local RetVal = {}
while (getting return values) do
	tinsert(RetVal, ReturnValueN)
end
return RetVal
end

	Now getn(foo()) will work.  I think. :)

Regards,

-- 
Thiago Conde Figueiró
Infraestrutura
Cipher Technology
http://www.ciphertech.com.br/

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