From: Andreas Rossberg <rossberg@ps.uni-sb.de>
To: caml-list@inria.fr
Cc: Don Syme <dsyme@microsoft.com>
Subject: Re: arrays and type variables...
Date: Thu, 26 Nov 1998 17:03:57 +0100 [thread overview]
Message-ID: <365D7BED.3D876FFB@ps.uni-sb.de> (raw)
In-Reply-To: <39ADCF833E74D111A2D700805F1951EF0B2EF63B@RED-MSG-06>
Don Syme wrote:
>
> Shouldn't "[| [] |]" count as a value??
>
> # let x = [| [] |];;
> val x : '_a list array = [|[]|]
> # let x = [];;
> val x : 'a list = []
> # let x = [| |];;
> val x : 'a array = [||]
No, because you can assign to arrays:
# let x = [| [] |];;
val x : '_a list array = [|[]|]
# x.(0) <- [1];;
- : unit = ()
# x;;
- : int list array = [|[1]|]
You cannot assign anything to the empty array [| |], however.
Regards,
- Andreas
--
Andreas Rossberg, rossberg@ps.uni-sb.de
:: be declarative. be functional. just be. ::
prev parent reply other threads:[~1998-11-26 16:09 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
1998-11-25 13:57 Don Syme
1998-11-26 15:33 ` Pierre Weis
1998-11-26 16:03 ` Andreas Rossberg [this message]
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