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From: "Randy Brukardt" <randy@rrsoftware.com>
Newsgroups: comp.lang.ada
Subject: Re: Custom Storage Pool questions
Date: Mon, 20 Sep 2021 19:30:41 -0500
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"Dmitry A. Kazakov" <mailbox@dmitry-kazakov.de> wrote in message 
news:si77kd$rka$1@gioia.aioe.org...
> On 2021-09-19 12:36, Niklas Holsti wrote:
...
>> Local variables declared in a subprogram are also not explicitly freed 
>> (deallocated), yet they are automatically finalized when the subprogram 
>> returns.
>
> Local objects are certainly freed. Explicit or not, aggregated or not, is 
> irrelevant.

OK...

>> My understanding of Ada semantic principles is that any object that is 
>> initialized should also be finalized.
>
> IFF deallocated.

...as you note above for stack objects, all objects are conceptually 
deallocated. Whether the memory is actually returned to a storage pool is 
irrelevant.

The original Ada model was that Unchecked_Deallocation is something to be 
avoided if at all possible (thus the name), one would never want to tie 
finalization to such a thing.

                         Randy.