From: Niklas Holsti <niklas.holsti@tidorum.invalid>
Subject: Re: How can one record component be local and another not?
Date: Tue, 5 May 2020 22:04:51 +0300
Date: 2020-05-05T22:04:51+03:00 [thread overview]
Message-ID: <hhdrmkFk1kgU1@mid.individual.net> (raw)
In-Reply-To: <hhdma5Fitq9U1@mid.individual.net>
On 2020-05-05 20:32, hreba wrote:
> Ok, with all your hints I came to the following solution:
>
> --
> package Aux is
> type Integer_P is access all Integer;
> type Rec is limited record
> a: aliased Integer;
> p: Integer_P;
> end record;
>
> procedure Init (r: access Rec);
> end Aux;
> --
> package body Aux is
> procedure Init (r: access Rec) is
> begin
> r.p:= r.a'Access;
> end Init;
> end Aux;
> --
> with Aux;
> procedure Test is
> r: aliased Aux.Rec;
> begin
> Aux.Init (r'Access);
> end Test;
> --
>
> It compiles nicely, and then:
>
> frank@pc-frank:~/Temp/Test0$ ./test
> raised PROGRAM_ERROR : aux.adb:4 accessibility check failed
>
> #@!!0ßx*~@!!!
Ok, apologies if I led you down the wrong path. I admit I did not build
a running program to check my suggestion of the "access" parameter, and
I have not myself often used this kind of code.
You should be able to get rid of this error by using
r.a'Unchecked_Access instead of r.a'Access, and then (I think) you can
return to using an "in out" parameter mode instead of "access" mode.
--
Niklas Holsti
Tidorum Ltd
niklas holsti tidorum fi
. @ .
next prev parent reply other threads:[~2020-05-05 19:04 UTC|newest]
Thread overview: 39+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-05-05 11:04 How can one record component be local and another not? hreba
2020-05-05 11:33 ` AdaMagica
2020-05-05 11:38 ` AdaMagica
2020-05-05 12:59 ` hreba
2020-05-05 13:19 ` J-P. Rosen
2020-05-05 13:37 ` Jere
2020-05-05 14:28 ` hreba
2020-05-05 15:18 ` AdaMagica
2020-05-05 14:32 ` hreba
2020-05-05 11:43 ` AdaMagica
2020-05-05 12:55 ` hreba
2020-05-05 11:46 ` Simon Wright
2020-05-05 13:07 ` hreba
2020-05-05 17:00 ` Dmitry A. Kazakov
2020-05-05 11:48 ` Niklas Holsti
2020-05-05 13:44 ` hreba
2020-05-05 15:45 ` Jeffrey R. Carter
2020-05-05 17:17 ` hreba
2020-05-05 19:08 ` Niklas Holsti
2020-05-06 19:31 ` hreba
2020-05-09 19:43 ` Niklas Holsti
2020-05-10 15:10 ` hreba
2020-05-05 19:19 ` Jere
2020-05-06 6:42 ` Mark Lorenzen
2020-05-06 8:26 ` Simon Wright
2020-05-06 8:33 ` Mark Lorenzen
2020-05-05 17:32 ` hreba
2020-05-05 19:04 ` Niklas Holsti [this message]
2020-05-05 20:11 ` Niklas Holsti
2020-05-06 13:13 ` hreba
2020-05-06 17:30 ` Niklas Holsti
2020-05-06 18:28 ` Jere
2020-05-06 19:09 ` Niklas Holsti
2020-05-07 9:07 ` J-P. Rosen
2020-05-07 10:15 ` Niklas Holsti
2020-05-07 13:00 ` Egil H H
2020-05-07 13:25 ` Simon Wright
2020-05-07 10:31 ` Stefan.Lucks
2020-05-07 11:58 ` J-P. Rosen
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