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From: anon@att.net
Newsgroups: comp.lang.ada
Subject: Re: Legit Warnings or not
Date: Thu, 21 Jul 2011 14:17:48 +0000 (UTC)
Organization: Aioe.org NNTP Server
Message-ID: <j09ceb$fbq$1@speranza.aioe.org>
References: 
 <531193e0-3305-4292-9ed8-0176226c1d00@x12g2000yql.googlegroups.com>
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Date: 2011-07-21T14:17:48+00:00
List-Id: <comp.lang.ada>

This is funny. Because if you add definition of Positive

   subtype Positive is Integer range 1 .. Integer'Last ;                           

-- or 
  
  -- copied from created standard ( gnat standard )
   subtype Positive is Integer range 1 .. +(2 ** 31 - 1);

it stops the warning message. So, its a compile error. Even 
GNAT 3.10 .. 2007 | 2011 has this error so this one goes back 
a few years.



In <531193e0-3305-4292-9ed8-0176226c1d00@x12g2000yql.googlegroups.com>, Anh Vo <anhvofrcaus@gmail.com> writes:
>package Warnings_Legit is
>
>   type Warned_Person (Size : Positive := 10) is -- Warnings issued
>here
>      record
>         Name : String (1 .. Size);
>      end record;
>
>   type Acceptable_Person (Size : Positive) is
>      record
>         Name : String (1 .. Size);
>      end record;
>
>end Warnings_Legit;
>
>The code segment above triggers a warnings message 'creation of
>"Warned_Person" object may raise Storage_Error' at line 3 as marked.
>However, no warnings is issued at line 8. The difference between them
>is default discriminant. I am using GNAT-GPL-2011.
>
>Is this warnings legitimate? If yes, why line 8 is OK. Otherwise,
>should it be a bug?
>
>Anh Vo