From mboxrd@z Thu Jan  1 00:00:00 1970
X-Spam-Checker-Version: SpamAssassin 3.4.4 (2020-01-24) on polar.synack.me
X-Spam-Level: 
X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00,FREEMAIL_FROM
	autolearn=ham autolearn_force=no version=3.4.4
X-Google-Language: ENGLISH,ASCII-7-bit
X-Google-Thread: 103376,38b27bed88e97415,start
X-Google-Attributes: gid103376,public
X-Google-ArrivalTime: 2003-02-20 00:06:15 PST
Path: archiver1.google.com!postnews1.google.com!not-for-mail
From: papand0pul0@yahoo.com (Papandopulo)
Newsgroups: comp.lang.ada
Subject: Question: Combination of Access and Constraining
Date: 20 Feb 2003 00:06:15 -0800
Organization: http://groups.google.com/
Message-ID: <1d13e1b4.0302200006.70207b86@posting.google.com>
NNTP-Posting-Host: 63.215.236.155
Content-Type: text/plain; charset=ISO-8859-1
Content-Transfer-Encoding: 8bit
X-Trace: posting.google.com 1045728375 3139 127.0.0.1 (20 Feb 2003 08:06:15
 GMT)
X-Complaints-To: groups-abuse@google.com
NNTP-Posting-Date: 20 Feb 2003 08:06:15 GMT
Xref: archiver1.google.com comp.lang.ada:34254
Date: 2003-02-20T08:06:15+00:00
List-Id: <comp.lang.ada>

Small Ada question:

I need one function to accept
an array of unknown size of Boolean,
so I declare type and function:

type Tp is array (Positive range <>) of Boolean;
type Tp_Access is access all Tp;

function Fn (Arg : in Tp_Access) return Natural;

Now I try to call it with the constrained array:

declare
  type TpCon is new Tp(1..1);
  Arr : aliased TpCon;
begin
  Arr(1) := True;
  Res := Fn (Arr'Access);
end;

Compiler says on the invocation line:
expected type: Tp_Access defined at ...
found type TpCon defined at ...

I think that access to constrained
type should be convertible to access
to unconstrained type.

So where I am going wrong here ?

Thanx,
George