On Sun, Nov 19, 2006 at 09:01:14PM -0000, drehman27 wrote:
> Warning U: this match case is unused.
> match h with
> (uid, rat) ->
> output_binary_int movies_data (pack_user_rating uid rat);
>; write_user_ratings t movies_data
> | _ -> failwith "There is a mistake in the movies ratings!"
You didn't show us the full example, but we can assume that h is a
tuple of two somethings.
So the first match clause [(uid, rat) ->] matches 'h' every time, and
the second [_ ->] is unused.
The more common way to write this is:
let uid, rat = h in
output_binary_int [etc...]
Rich.
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.