Sweave - print \n ?

Hi,

this is probably quite stupid but I have no clue
what's wrong. Let's say I write the function
hline <- function() {
  cat("\\hline \n") 
}
and call hline() from within a Sweave chunk. Why is
there no carriage return after the \hline in the
resulting tex file? 

if I call hline() hline() in the chunk, then I get
\hline \hline 
in the tex code without a linebreak in between.

Thanks for any hints,
  Werner


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