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=-2.9 required=5.0 tests=BAYES_00,MAILING_LIST_MULTI
	autolearn=unavailable autolearn_force=no version=3.4.4
X-Google-Thread: 103376,c3f9348279bab80c,start
X-Google-Attributes: gid103376,public
X-Google-Language: ENGLISH,ASCII-7-bit
Path: 
 g2news2.google.com!news3.google.com!news2.google.com!news.maxwell.syr.edu!newsfeed.icl.net!proxad.net!cleanfeed3-a.proxad.net!nnrp6-2.free.fr!not-for-mail
Return-Path: <Christoph.Grein@eurocopter.com>
Date: Wed, 07 Feb 2007 07:38:48 +0100
From: "Grein, Christoph (Fa. ESG)" <Christoph.Grein@eurocopter.com>
Subject: WG: Static vs dynamic evaluation anomaly?
To: comp.lang.ada@ada-france.org
MIME-version: 1.0
X-MIMEOLE: Produced By Microsoft Exchange V6.5
Content-type: text/plain; charset=us-ascii
Content-transfer-encoding: 7BIT
Content-class: urn:content-classes:message
Thread-topic: Static vs dynamic evaluation anomaly?
Thread-index: AcdKKtjRYg3mETFwTpOVAWjLhAu1UgAVPo+AAACxJmA=
X-MS-Has-Attach: 
X-MS-TNEF-Correlator: 
X-OriginalArrivalTime: 07 Feb 2007 06:38:12.0946 (UTC)
	FILETIME=[8A46FB20:01C74A82]
X-Virus-Scanned: amavisd-new at ada-france.org
X-BeenThere: comp.lang.ada@ada-france.org
X-Mailman-Version: 2.1.9rc1
Precedence: list
List-Id: "Gateway to the comp.lang.ada Usenet newsgroup"
	<comp.lang.ada.ada-france.org>
List-Unsubscribe: <http://www.ada-france.org/mailman/listinfo/comp.lang.ada>,
	<mailto:comp.lang.ada-request@ada-france.org?subject=unsubscribe>
List-Post: <mailto:comp.lang.ada@ada-france.org>
List-Help: <mailto:comp.lang.ada-request@ada-france.org?subject=help>
List-Subscribe: <http://www.ada-france.org/mailman/listinfo/comp.lang.ada>,
	<mailto:comp.lang.ada-request@ada-france.org?subject=subscribe>
Newsgroups: comp.lang.ada
Message-ID: <mailman.77.1170830303.18371.comp.lang.ada@ada-france.org>
X-Leafnode-NNTP-Posting-Host: 88.191.17.134
Organization: Guest of ProXad - France
NNTP-Posting-Date: 07 Feb 2007 07:40:01 MET
NNTP-Posting-Host: 88.191.14.223
X-Trace: 1170830401 news-4.free.fr 2071 88.191.14.223:60491
X-Complaints-To: abuse@proxad.net
Xref: g2news2.google.com comp.lang.ada:9048
Date: 2007-02-07T07:40:01+01:00

No, this program is absolute correct. Modular types do not overflow,
they use modular arithmetic.

with Ada.Text_IO;
use  Ada.Text_IO;
procedure test271 is
  type Six_Bits is mod 2**6;
  X: constant Six_Bits := 31;
  Z: constant Integer  := 31;
begin
  for J in 0..5 loop
    Put_Line (Integer 'Image         (J) &
              Six_Bits'Image  (X * 2**J) &
              Integer 'Image ((X * 2**J) mod Six_Bit'Modulus));
  end loop;
end test271;