From: Niklas Holsti <niklas.holsti@tidorum.invalid>
Subject: Re: How can one record component be local and another not?
Date: Thu, 7 May 2020 13:15:05 +0300
Date: 2020-05-07T13:15:05+03:00 [thread overview]
Message-ID: <hhi5d9Fh49hU1@mid.individual.net> (raw)
In-Reply-To: <r90j4m$rhq$1@dont-email.me>
On 2020-05-07 12:07, J-P. Rosen wrote:
> Le 06/05/2020 à 19:30, Niklas Holsti a écrit :
>> Note that, although "Test" here is no doubt the program's main
>> subprogram and so its call (assuming it is not recursive) lasts almost
>> as long as the execution of the program, the compiler does not make use
>> of this fact to determine the life-times of types and objects in "Test".
>
> No, tasks declared in library packages could survive the main program.
And the environment task, yes. I know, which is why I said "almost as
long as". The example program we were discussing had no library tasks.
> You may even have a "begin null; end" main program, and do all the work
> with library tasks.
Yes, but not for this example program. But I should have been clearer, I
admit.
> Moreover, there is no rule in Ada that makes the main subprogram "special".
Indeed, I was trying to make that point, but evidently not clearly enough.
Sometimes this is a little annoying, where one wants to write a small
program with some library-level stuff, but must then separate those
declarations into a package. An option to have a "main package" instead
of a "main subprogram" would sometimes be neat (and now somebody will
tell me that Gnat already has that...)
--
Niklas Holsti
Tidorum Ltd
niklas holsti tidorum fi
. @ .
next prev parent reply other threads:[~2020-05-07 10:15 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
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 [this message]
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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