From: john.nospam@nospamassen.nospamdemon.co.uk (John McCabe)
Subject: Re: array of operations
Date: Thu, 12 Sep 2002 16:15:55 GMT
Date: 2002-09-12T16:15:55+00:00 [thread overview]
Message-ID: <3d80bd8d.30112108@news.demon.co.uk> (raw)
In-Reply-To: 3D80A553.5030208@attbi.com
On Thu, 12 Sep 2002 14:32:10 GMT, Mark Biggar
<mark.a.biggar@attbi.com> wrote:
>Ehud Lamm wrote:
>>>Not true. Since it is always OK to take 'Unchecked_Access of a parameter
>>>of a tagged type in Ada 95, you generally do not need to explicitly use
>>>"aliased". Claw uses this extensively to provide an interface which is
>>>mostly without access types, yet internally everything is linked
>>>together. (Claw uses finalization to prevent dangling pointers in this
>>>case).
>
>> Sure. You can rephrase what I wrote, "You usually need to decalre aliased
>> objects, or use 'Unchecked_Access." :-)
>
>um, tagged objects are by definition aliased, see ARM 3.10(9). No need
>for an explisit declaration.
Do you mean this bit:
"and a formal parameter or generic formal object of a tagged type are
defined to be aliased"?
Note the word "generic". As far as I can see, you are mistaken.
next prev parent reply other threads:[~2002-09-12 16:15 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-09-10 13:45 array of operations marco
2002-09-10 15:28 ` Mark Biggar
2002-09-10 17:09 ` Ehud Lamm
2002-09-11 7:43 ` Ole-Hjalmar Kristensen
2002-09-11 10:10 ` Ehud Lamm
2002-09-11 23:43 ` Randy Brukardt
2002-09-12 9:01 ` Ehud Lamm
2002-09-12 14:32 ` Mark Biggar
2002-09-12 16:15 ` John McCabe [this message]
2002-09-12 16:37 ` David C. Hoos
2002-09-12 17:45 ` John McCabe
2002-09-11 2:17 ` Ted Dennison
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