From: Jacques Garrigue <garrigue@kurims.kyoto-u.ac.jp>
To: vsl@ontil.ihep.su
Cc: caml-list@inria.fr
Subject: Re: [Caml-list] Strange error message
Date: Thu, 16 Jan 2003 16:48:16 +0900 [thread overview]
Message-ID: <20030116164816M.garrigue@kurims.kyoto-u.ac.jp> (raw)
In-Reply-To: <Pine.LNX.4.52L.0301152247380.29295@ontil.ihep.su>
From: Vitaly Lugovsky <vsl@ontil.ihep.su>
> I just got a strange error message, never seen before.
> Ocaml 3.06.
>
> The implementation lisp.ml does not match the interface lisp.cmi:
> Values do not match:
> val execute :
> int * (string, '_a Lispt.ctv) Hashtbl.t ->
> '_a Lispt.llist list -> int * (string, '_a Lispt.ctv) Hashtbl.t
> is not included in
> val execute :
> int * (string, 'a Lispt.ctv) Hashtbl.t ->
> 'a Lispt.llist list -> int * (string, 'a Lispt.ctv) Hashtbl.t
That's just the nth variant of the value polymorphism problem. You
should probably eta-expand the definition of execute, because
currently it has a monorphic type (as shown by the '_a), while the
interface requires it to be polymorphic.
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Jacques Garrigue Kyoto University garrigue at kurims.kyoto-u.ac.jp
<A HREF=http://wwwfun.kurims.kyoto-u.ac.jp/~garrigue/>JG</A>
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next prev parent reply other threads:[~2003-01-16 7:48 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-01-15 19:49 Vitaly Lugovsky
2003-01-16 7:48 ` Jacques Garrigue [this message]
2003-01-19 14:52 ` Pierre Weis
2003-01-20 14:17 ` Vitaly Lugovsky
2003-01-20 16:06 ` Pierre Weis
2003-01-21 23:51 ` Jacques Garrigue
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