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From: "Dmitry A. Kazakov" <mailbox@dmitry-kazakov.de>
Newsgroups: comp.lang.ada
Subject: Re: Reprise: 'in out' parameters for functions
Date: Sat, 10 Apr 2004 15:26:41 +0200
Organization: At home
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Date: 2004-04-10T15:26:41+02:00
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Florian Weimer wrote:

> "Dmitry A. Kazakov" <mailbox@dmitry-kazakov.de> writes:
> 
>> > Well, this is solution is obviously quite bad because "procedure" and
>> > "function" are now almost (but not quite) interchangeable.
>> 
>> Isn't an access parameter almost interchangeable with an "in out"
>> parameter?
> 
> No, it isn't.  You can't obtain an access value for most objects.

So what? The only reasonable use of an access parameter is to have "in out"
where it is not allowed. [I do not count circumventing by-copy parameter
passing for reasonable]

>> Let me use your argument: what would be the difference between "function"
>> and "procedure" then?
> 
> Its use.  A procedure call is a statement, a function call is a name
> (and thus part of an expression).

Expression is a part of a statement, so I see as much difference as between
+ and "+".

-- 
Regards,
Dmitry A. Kazakov
www.dmitry-kazakov.de