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Date: Fri, 18 Jan 2008 18:08:52 +0100
From: Christian Sternagel <Christian.Sternagel@uibk.ac.at>
To: caml-list@yquem.inria.fr
Subject: camlp4
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X-Spam: no; 0.00; camlp:01 camlp:01 flatten:01 appends:01 cheers:01 preprocessor:01 optimization:03 naive:03 cons:04 translation:07 fun:08 fun:08 minimize:10 resulting:11 using:15 

When using `camlp4o -parser Camlp4ListComprehension' as preprocessor,
is the resulting code the naive translation, like in,

 [(x, y) | x <- xs, even xs, y <- ys]

=>

 List.flatten (
  List.map (fun x -> List.map (fun y -> (x, y)) ys) (List.filter even xs)
 )

or is there an optimization in order to avoid appends and minimize the
number of cons?

cheers

christian