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From: Yaron Minsky <yminsky@gmail.com>
To: Caml Mailing List <caml-list@inria.fr>
Subject: When is a function polymorphic?
Date: Wed, 30 Mar 2005 17:31:02 -0500	[thread overview]
Message-ID: <891bd33905033014311636570a@mail.gmail.com> (raw)

I don't understand the following results.  It seems like these two
examples should have the same type.  In this example, there isn't much
of a difference between the two cases, but there are cases where this
idiom is quite convenient.  Any idea how to salvage it?

# function Some x -> Some () | None as x -> x;;
- : 'a option -> unit option = <fun>
# function Some x -> Some () | x -> x;;
- : unit option -> unit option = <fun>


Yaron


             reply	other threads:[~2005-03-30 22:31 UTC|newest]

Thread overview: 12+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2005-03-30 22:31 Yaron Minsky [this message]
2005-03-31  0:37 ` [Caml-list] " Jacques Garrigue
2005-03-31  0:51   ` Yaron Minsky
2005-03-31  1:15     ` Eric Cooper
2005-03-31  1:26     ` Martin Jambon
2005-03-31  2:42     ` Jacques Garrigue
2005-03-31  4:04       ` Yaron Minsky
2005-03-31  8:32         ` Jacques Garrigue
2005-03-31 12:04           ` Yaron Minsky
2005-03-31 12:48             ` Fermin Reig
2005-03-31 12:16           ` Jon Harrop
2005-04-01 16:26           ` Luc Maranget

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