Yvon Thoraval <yvon.thoravalNO-SPAM / free.fr> wrote:

> 
> then the question is to know if the line "datas << myCols" returns an
> Array of Array or simply an concataneted Array ???

I'm sure now datas is an Array of Arrays (by printing size) the the
error is comin from elsewhere...
-- 
yt