From mboxrd@z Thu Jan  1 00:00:00 1970
X-Spam-Checker-Version: SpamAssassin 3.4.4 (2020-01-24) on polar.synack.me
X-Spam-Level: 
X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00
	autolearn=unavailable autolearn_force=no version=3.4.4
Path: 
 eternal-september.org!reader01.eternal-september.org!reader02.eternal-september.org!news.eternal-september.org!mx02.eternal-september.org!.POSTED!not-for-mail
From: "Jeffrey R. Carter" <spam.jrcarter.not@spam.not.acm.org>
Newsgroups: comp.lang.ada
Subject: Re: Warning "others choice is redundant" on tagged object
 initialization
Date: Wed, 1 Jun 2016 11:27:17 -0700
Organization: Also freenews.netfront.net; news.tornevall.net;
 news.eternal-september.org
Message-ID: <nin9e9$9jc$1@dont-email.me>
References: <99182741-11ea-4892-96e9-3e086bdb93a1@googlegroups.com>
Mime-Version: 1.0
Content-Type: text/plain; charset=utf-8
Content-Transfer-Encoding: 7bit
Injection-Date: Wed, 1 Jun 2016 18:27:23 -0000 (UTC)
Injection-Info: mx02.eternal-september.org;
 posting-host="48b46be33beed75863f69afa437f956b";
	logging-data="9836"; mail-complaints-to="abuse@eternal-september.org";
	posting-account="U2FsdGVkX1+R12UL+2ghnrkCOdJLCRWsC8pqczUcG8Y="
User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:38.0) Gecko/20100101
 Thunderbird/38.8.0
In-Reply-To: <99182741-11ea-4892-96e9-3e086bdb93a1@googlegroups.com>
Cancel-Lock: sha1:yl7SsrFX+MtPgJFahXimanzIFCU=
X-Enigmail-Draft-Status: N1110
Xref: news.eternal-september.org comp.lang.ada:30544
Date: 2016-06-01T11:27:17-07:00
List-Id: <comp.lang.ada>

On 06/01/2016 11:13 AM, pascal.malaise@gmail.com wrote:
> 
>   type Timer_Id is new Smart_Timer_Mng.Handle with null record;
>   No_Timer : constant Timer_Id
>            := (Smart_Timer_Mng.Null_Handle with others => <>);
> 
> timers.ads:140:56: warning: others choice is redundant
> timers.ads:140:56: warning: previous choices cover all components
> 
> I thought that this was the only way to initialize a sub-object "with null".
> Am I missing something?

ARM 4.3.2(9) says

"If all components of the value of the extension_aggregate are determined by the
ancestor_part, then the record_component_association_list is required to be
simply null record."

So perhaps you should replace "others => <>" with "null record".

-- 
Jeff Carter
"In the frozen land of Nador they were forced to
eat Robin's minstrels, and there was much rejoicing."
Monty Python & the Holy Grail
70