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Newsgroups: comp.lang.ada
Date: Wed, 21 Feb 2018 13:42:12 -0800 (PST)
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Subject: Re: non record limited type
From: Jere <jhb.chat@gmail.com>
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Xref: reader02.eternal-september.org comp.lang.ada:50526
Date: 2018-02-21T13:42:12-08:00
List-Id: <comp.lang.ada>

On Wednesday, February 21, 2018 at 10:58:18 AM UTC-5, Mehdi Saada wrote:
> 
> Also, another question: if only the public view is limited, what about the parameter passing ? Is it by reference or copy, when such copy are made in the body ? I would guess by copy, but I prefer to ask

I can't answer why on your first question, but on this one:
The RM in section 6.2 specifies how parameter passing is done based on the type.

http://www.ada-auth.org/standards/12rm/html/RM-6-2.html#I3382

Based on that, your limited private which is really an integer would still be
a by-copy-type.  I don't know the RM's intention but the wording suggests that
at least.  Note you can also used the "aliased" keyword in a function/procedure
signature to enforce an aliased variable which will be passed by reference
as well:

-- Object is passed by reference
procedure Do_Something(Object : aliased in out Some_Type);