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From: Julien Blond <julien.blond@gmail.com>
To: OCaml mailing-list <caml-list@inria.fr>
Subject: [Caml-list] Empty polymorphic variant set
Date: Fri, 25 Nov 2016 09:39:18 +0100	[thread overview]
Message-ID: <CAG3nF7UywqZo6t5PRi4WHhYcQn+qe7qmUR5FZBGyWz-DWqtNPw@mail.gmail.com> (raw)

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Hi,

Let's try something :

$ ocaml
        OCaml version 4.03.0

# let _ : [] list = [];;
Characters 9-10:
  let _ : [] list = [];;

Error: Syntax error
# type empty = [];;
type empty = []
# let _ : empty list = [];;
- : empty list = []
#

Does anyone know if there is a reason to forbid the empty polymorphic
variant set in type expressions or if it's a bug ?

Regards,

-- Julien Blond

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             reply	other threads:[~2016-11-25  8:39 UTC|newest]

Thread overview: 14+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-11-25  8:39 Julien Blond [this message]
2016-11-25  9:19 ` Ben Millwood
2016-11-25  9:20 ` Julien Blond
2016-11-25 11:22   ` David Allsopp
2016-11-25 13:01     ` Julien Blond
2016-11-25 13:46       ` Gabriel Scherer
2016-11-25 13:52         ` Andreas Rossberg
2016-11-25 15:42           ` Markus Mottl
2016-11-25 15:46           ` Gabriel Scherer
2016-11-25 15:59             ` Yaron Minsky
2016-11-25 16:42               ` Markus Mottl
2016-11-25 17:11                 ` Gabriel Scherer
2016-11-25 16:50           ` Stephen Dolan
2016-11-25 16:59             ` Jeremy Yallop

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