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=-0.3 required=5.0 tests=BAYES_00,
	REPLYTO_WITHOUT_TO_CC autolearn=no autolearn_force=no version=3.4.4
Path: 
 eternal-september.org!reader01.eternal-september.org!reader02.eternal-september.org!news.eternal-september.org!news.eternal-september.org!news.eternal-september.org!feeder.eternal-september.org!aioe.org!.POSTED!not-for-mail
From: "Dmitry A. Kazakov" <mailbox@dmitry-kazakov.de>
Newsgroups: comp.lang.ada
Subject: Re: Warning: Storage error
Date: Sat, 9 Aug 2014 18:21:01 +0200
Organization: cbb software GmbH
Message-ID: <i8yvg5kk5925.1301xxfmaixuw$.dlg@40tude.net>
References: <ls5e8r$373$1@speranza.aioe.org>
Reply-To: mailbox@dmitry-kazakov.de
NNTP-Posting-Host: pFv5JukiA5DRwd1gSNRC4g.user.speranza.aioe.org
Mime-Version: 1.0
Content-Type: text/plain; charset="us-ascii"
Content-Transfer-Encoding: 7bit
X-Complaints-To: abuse@aioe.org
User-Agent: 40tude_Dialog/2.0.15.1
X-Notice: Filtered by postfilter v. 0.8.2
Xref: news.eternal-september.org comp.lang.ada:21614
Date: 2014-08-09T18:21:01+02:00
List-Id: <comp.lang.ada>

On Sat, 09 Aug 2014 18:20:57 +0300, Victor Porton wrote:

>    type My_String (Length: Integer := 0) is 
>       record
>          Str: String(1..Length);
>       end record;
>    
> warning: creation of "My_String" object may raise Storage_Error
> 
> Why this warning?

Because you provided a default value.

It should have been:

   type My_String (Length: Natural) is record
      Str: String (1..Length);
   end record;

Or in the case of a varying length string with an upper bound:

   type My_String Size: Natural) is record
      Length : Natural := 0;
      Str: String (1..Size);
   end record;

-- 
Regards,
Dmitry A. Kazakov
http://www.dmitry-kazakov.de