From mboxrd@z Thu Jan  1 00:00:00 1970
X-Spam-Checker-Version: SpamAssassin 3.4.5-pre1 (2020-06-20) on
	ip-172-31-74-118.ec2.internal
X-Spam-Level: 
X-Spam-Status: No, score=-1.9 required=3.0 tests=BAYES_00 autolearn=ham
	autolearn_force=no version=3.4.5-pre1
Path: eternal-september.org!reader02.eternal-september.org!news.szaf.org!weretis.net!feeder8.news.weretis.net!proxad.net!feeder1-2.proxad.net!cleanfeed1-a.proxad.net!nnrp1-1.free.fr!not-for-mail
Newsgroups: comp.lang.ada
References: <607b56f8$0$3721$426a34cc@news.free.fr>
 <s5gq77$110s$1@gioia.aioe.org>
From: DrPi <314@drpi.fr>
Subject: Re: Unchecked_Deallocation with tagged types
Date: Sun, 18 Apr 2021 11:13:05 +0200
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:78.0) Gecko/20100101
 Thunderbird/78.9.1
MIME-Version: 1.0
In-Reply-To: <s5gq77$110s$1@gioia.aioe.org>
Content-Type: text/plain; charset=utf-8; format=flowed
Content-Language: en-US
Content-Transfer-Encoding: 8bit
Message-ID: <607bf826$0$3733$426a74cc@news.free.fr>
Organization: Guest of ProXad - France
NNTP-Posting-Date: 18 Apr 2021 11:13:10 CEST
NNTP-Posting-Host: 82.65.30.55
X-Trace: 1618737190 news-1.free.fr 3733 82.65.30.55:64974
X-Complaints-To: abuse@proxad.net
Xref: reader02.eternal-september.org comp.lang.ada:61816
List-Id: <comp.lang.ada>

Le 18/04/2021 à 10:21, Dmitry A. Kazakov a écrit :
> On 2021-04-17 23:45, DrPi wrote:
> 
>> I have the following types :
>>
>>    type t_Element_Record is tagged null record;
>>    type t_Element is access all t_Element_Record'Class;
>>
>>    type t_Str_Record (Str_Length : Natural) is new t_Element_Record 
>> with record
>>       Str : String (1 .. Str_Length);
>>    end record;
>>    type t_Str is access all t_Str_Record'Class;
>>
>> Do I have to create a Unchecked_Deallocation procedure for each tagged 
>> type or only one for the root tagged type (and the compiler manages 
>> the effective tagged type) ?
> 
> You have Unchecked_Deallocation for the type you deallocate. In your 
> case the answer is neither. You instantiate Unchecked_Deallocation for 
> the class.
> 
>    procedure Free is
>       new Ada.Unchecked_Deallocation
>           (  t_Element_Record'Class,
>              t_Element
>           );
> 
Thanks

> P.S. Hungarian notation is evil. Using suffixes on top of Hungarian 
> notation is evil squared.
> 
I know Ada convention is to use Camel_Case_Syntax. Maybe there's also a 
convention for naming ?

What's the convention you use for naming ?