From: David Baelde <david.baelde@gmail.com>
To: Martin Koch <mak@issuu.com>
Cc: Mihamina Rakotomandimby <mihamina@rktmb.org>, caml-list@inria.fr
Subject: Re: [Caml-list] polymorphism in general
Date: Tue, 27 Dec 2011 08:44:40 +0100 [thread overview]
Message-ID: <CAFqqUFEuyTFnvM4DLZX1ZiQje+bRMp=Fyag7o6aSVpBtGT2K4g@mail.gmail.com> (raw)
In-Reply-To: <CACyk+CLz1SUo9QqAK+3id2A7J9VyR=aWBaAnZXFLiiYNPbdK8Q@mail.gmail.com>
Hi,
I would say that any value whose type contains a generalized type
variable ('a, 'b, etc.) is polymorphic.
The empty list (of type 'a list) is polymorphic:
let empty = [] in (1::empty, "2"::empty)
And so is the function always returning the empty list, even though it
has no polymorphic argument:
let empty () = []
My 2 cents,
--
David
prev parent reply other threads:[~2011-12-27 7:45 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-12-23 8:30 Mihamina Rakotomandimby
2011-12-23 10:07 ` Martin Koch
2011-12-27 7:44 ` David Baelde [this message]
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