From: yoann padioleau <padator@wanadoo.fr>
To: spiralvoice <spiralvoice@hotmail.com>
Cc: caml-list@inria.fr
Subject: Re: [Caml-list] Difference between != and <>
Date: Wed, 31 Aug 2005 00:00:54 +0200 [thread overview]
Message-ID: <514F89ED-DF61-4B98-86B5-FC81D2ABEC43@wanadoo.fr> (raw)
In-Reply-To: <df2k84$8kh$1@sea.gmane.org>
On 30 août 05, at 23:49, spiralvoice wrote:
> Hi,
>
> is there a difference between != and <> in Ocaml code?
Yes, the same kind of difference that between = and ==
"toto" <> "toto"
=> false
"toto" != "toto
=> true
let x = "toto" in x != x
=> false
It is a difference between structural equality (deep equality) and
physical equality (shallow equality, or "pointer" equality).
By the way, one wonderful thing with computer science is that you can
ask many questions to the machine :)
>
> Greetings, spiralvoice
>
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>
prev parent reply other threads:[~2005-08-30 22:07 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-08-30 21:49 spiralvoice
2005-08-30 22:00 ` yoann padioleau [this message]
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