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Date: Tue, 14 Sep 2021 17:21:04 -0700 (PDT)
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Subject: Re: Custom Storage Pool questions
From: Jere <jhb.chat@gmail.com>
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On Tuesday, September 14, 2021 at 2:23:15 AM UTC-4, Dmitry A. Kazakov wrote:
> On 2021-09-14 02:48, Jere wrote: 
> 
> > Yes, but if you look at that blog, they are allocating space for the /user/ data 
> > and for the Next/Prev for controlled types and First/Last for unconstrained 
> > arrays in addition to the size specified by allocate.
> I do not understand your concern. The blog discusses how to add service 
> data to the objects allocated in the pool. 
> 
I tried to better articulate my concern in my response to egilhh if you want
to take a quick look at that and see if it clarifies better.  

> I use such pools extensively in Simple Components. E.g. linked lists are 
> implemented this way. The list links are allocated in front of list 
> elements which can be of any type, unconstrained arrays included. 
> 
The blog I saw was old, so it is completely possible it no longer is 
true that GNAT does what the blog suggests.  I'll take a look at your
storage pools and see how they handle things like this.