]> On 17.11.2003 16:23, chris.danx wrote: > let insert item dl = > match dl with > {l = _; compare = _; in_order = true} -> Hint: you do not have to mention the fiends that you are not interested in. So you could just use ... match dl with { in_order = true } -> ... > {merge dl.compare (dl.l, [item]), dl.compare, true} You have to use the explicit field names when you construct records: { l = merge dl.compare (dl.l, [item]); compare = dl.compare; in_order = true } Hint: if you want to create a new record that only slightly differs from an existing one, use the "with" construction: { dl with l = merge dl.compare (dl.l, [item]) } > | {l = _; compare = _; in_order = false} -> > {item::dl.l, dl.compare, false};; Hint: it is IMHO a bad style to use "match" expressions simply to check on a boolean value - it's much more intuitive to use "if/then/else" for that. P.S. Here is how I would have written the insert function above: let insert item dl = { dl with l = if dl.in_order then merge dl.compare (dl.l, [item]) else item::dl.l } -- Aleksey Nogin Home Page: http://nogin.org/ E-Mail: nogin@cs.caltech.edu (office), aleksey@nogin.org (personal) Office: Jorgensen 70, tel: (626) 395-2907 ------------------- To unsubscribe, mail caml-list-request@inria.fr Archives: http://caml.inria.fr Bug reports: http://caml.inria.fr/bin/caml-bugs FAQ: http://caml.inria.fr/FAQ/ Beginner's list: http://groups.yahoo.com/group/ocaml_beginners