From: "Dmitry A. Kazakov" <mailbox@dmitry-kazakov.de>
Subject: Re: Calling inherited primitive operations in Ada
Date: Sat, 3 Sep 2022 10:23:01 +0200 [thread overview]
Message-ID: <tev2t6$1h1e$1@gioia.aioe.org> (raw)
In-Reply-To: teu65a$2m29q$1@dont-email.me
On 2022-09-03 02:12, Randy Brukardt wrote:
> "Dmitry A. Kazakov" <mailbox@dmitry-kazakov.de> wrote in message
> news:teso01$16gg$1@gioia.aioe.org...
>> On 2022-09-02 12:41, Jeffrey R.Carter wrote:
>>
>>> The only indefinite data structure that is needed seems to be holders.
>>
>> The language should support and encourage design that does not rely on
>> memory pools.
>>
>> In my view one of major advantages of Ada is that indefinite objects can
>> be handled without resorting to hidden or explicit pointers to pools.
>
> But they're implemented with some sort of hidden allocation. (GNAT uses a
> "secondary stack", whatever that is, but that is just a restricted form of
> pool). Janus/Ada uses built-in pools with cleanup for all such things to
> simplify the interface (the code for allocations and stand-alone objects is
> mostly shared, both within the compiler and at runtime).
For a programmer that does not matter. The problem with pools is
locking, non-determinism, issues with protected actions. If secondary or
primary stack is the program stack, nobody really cares.
BTW, merely doing pool tracing/bookkeeping becomes a sheer nightmare if
you cannot return a string from a function.
--
Regards,
Dmitry A. Kazakov
http://www.dmitry-kazakov.de
next prev parent reply other threads:[~2022-09-03 8:23 UTC|newest]
Thread overview: 37+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-08-31 8:15 Calling inherited primitive operations in Ada Emmanuel Briot
2022-08-31 17:11 ` DrPi
2022-08-31 19:13 ` Dmitry A. Kazakov
2022-09-01 6:56 ` Emmanuel Briot
[not found] ` <67b32db0-c4db-466c-ac13-e597e008c762n@googlegroups.com>
2022-09-01 10:02 ` Dmitry A. Kazakov
2022-09-01 11:59 ` Jeffrey R.Carter
2022-09-01 12:37 ` Dmitry A. Kazakov
2022-09-01 13:37 ` Jeffrey R.Carter
2022-09-01 14:10 ` Emmanuel Briot
2022-09-01 15:50 ` amo...@unizar.es
2022-09-01 16:03 ` Jeffrey R.Carter
2022-09-01 16:07 ` Emmanuel Briot
2022-09-01 16:17 ` Jeffrey R.Carter
2022-09-01 18:54 ` Emmanuel Briot
2022-09-01 21:33 ` Jeffrey R.Carter
2022-09-02 6:11 ` Emmanuel Briot
2022-09-02 10:55 ` Jeffrey R.Carter
2022-09-02 11:20 ` Emmanuel Briot
2022-09-02 14:28 ` Jeffrey R.Carter
2022-09-03 0:16 ` Randy Brukardt
2022-09-03 0:07 ` Randy Brukardt
2022-09-03 8:59 ` Jeffrey R.Carter
2022-09-07 0:42 ` Randy Brukardt
2022-09-03 19:00 ` Simon Wright
2022-09-05 6:56 ` Emmanuel Briot
2022-09-05 7:34 ` Dmitry A. Kazakov
2022-09-05 9:30 ` Jeffrey R.Carter
2022-09-07 0:51 ` Randy Brukardt
2022-09-02 8:35 ` amo...@unizar.es
2022-09-02 8:48 ` Dmitry A. Kazakov
[not found] ` <9484a755-f55d-407e-a40b-92421b0bcafbn@googlegroups.com>
2022-09-02 9:55 ` Dmitry A. Kazakov
2022-09-02 10:41 ` Jeffrey R.Carter
2022-09-02 11:04 ` Dmitry A. Kazakov
2022-09-03 0:12 ` Randy Brukardt
2022-09-03 8:23 ` Dmitry A. Kazakov [this message]
2022-09-03 0:01 ` Randy Brukardt
2022-09-05 8:53 ` amo...@unizar.es
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