comp.lang.ada
 help / color / mirror / Atom feed
From: "Dmitry A. Kazakov" <mailbox@dmitry-kazakov.de>
Subject: Re: Is this actually possible?
Date: Wed, 11 Dec 2019 22:34:12 +0100
Date: 2019-12-11T22:34:12+01:00	[thread overview]
Message-ID: <qsrncj$u95$1@gioia.aioe.org> (raw)
In-Reply-To: a3717ecc-6ce1-4f8b-a026-7355757bc78f@googlegroups.com

On 2019-12-11 22:12, Lucretia wrote:
> On Wednesday, 11 December 2019 19:58:54 UTC, Dmitry A. Kazakov  wrote:

>> If you need objects that could be packed into C arrays use a variant
>> record with the choice discriminant having a default.
> 
> But in my cases, a variant cannot be used.

Why? You must know all variants in order to compute the array element 
size. In Ada you cannot have it either:

    type Not_an_Array is array (Positive range <>) of T'Class;

This is illegal.

Are you sure you want an array of objects, rather than an array of 
pointers to objects?

-- 
Regards,
Dmitry A. Kazakov
http://www.dmitry-kazakov.de


  reply	other threads:[~2019-12-11 21:34 UTC|newest]

Thread overview: 21+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-12-11 16:43 Is this actually possible? Lucretia
2019-12-11 17:38 ` Dmitry A. Kazakov
2019-12-11 17:54   ` Lucretia
2019-12-11 19:55     ` Randy Brukardt
2019-12-11 19:58     ` Dmitry A. Kazakov
2019-12-11 21:12       ` Lucretia
2019-12-11 21:34         ` Dmitry A. Kazakov [this message]
2019-12-12  2:00           ` Randy Brukardt
2019-12-12  9:26             ` Niklas Holsti
2020-04-08 16:10             ` Alejandro R. Mosteo
2019-12-12 10:17           ` Lucretia
2019-12-12 14:32             ` Dmitry A. Kazakov
2019-12-12 15:14               ` Lucretia
2019-12-12 15:15                 ` Lucretia
2019-12-12 18:24                   ` Dmitry A. Kazakov
2019-12-12 18:30                     ` Lucretia
2019-12-12 19:09                       ` Dmitry A. Kazakov
2019-12-12 20:54                         ` Lucretia
2019-12-12 21:12                           ` Dmitry A. Kazakov
2019-12-13 11:11                             ` Lucretia
2019-12-11 19:59 ` Randy Brukardt
replies disabled

This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox