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 X-Google-Thread: 103376,b78c363353551702 X-Google-NewGroupId: yes X-Google-Attributes: gida07f3367d7,domainid0,public,usenet X-Google-Language: ENGLISH,ASCII-7-bit Received: by 10.68.196.232 with SMTP id ip8mr23404928pbc.6.1340216938555; Wed, 20 Jun 2012 11:28:58 -0700 (PDT) Path: l9ni73245pbj.0!nntp.google.com!news1.google.com!goblin3!goblin.stu.neva.ru!usenet.pasdenom.info!aioe.org!.POSTED!not-for-mail From: "Dmitry A. Kazakov" Newsgroups: comp.lang.ada Subject: Re: about the new Ada 2012 pre/post conditions Date: Wed, 20 Jun 2012 20:28:52 +0200 Organization: cbb software GmbH Message-ID: <1p5lwrwtci3a0.1j0x5y8hwx5oa.dlg@40tude.net> References: <1hgo6aks03zy.by4pq4xbjsgf$.dlg@40tude.net> <4fe2022d$0$9517$9b4e6d93@newsspool1.arcor-online.net> Reply-To: mailbox@dmitry-kazakov.de NNTP-Posting-Host: 4RFYTQ6jM/dAKFJoI0fUkg.user.speranza.aioe.org Mime-Version: 1.0 X-Complaints-To: abuse@aioe.org User-Agent: 40tude_Dialog/2.0.15.1 X-Notice: Filtered by postfilter v. 0.8.2 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Date: 2012-06-20T20:28:52+02:00 List-Id: On Wed, 20 Jun 2012 19:02:37 +0200, Georg Bauhaus wrote: > On 20.06.12 16:37, Dmitry A. Kazakov wrote: > >> Correctness to be checked statically or dynamically by an *independent* >> program. > > Yes, the independent program that checks the assertions is us, > fixing bugs (a.k.a. correcting partial proofs). Yes, of course. This process is called "code review." > Nevertheless, if conditions/assumptions/assertions are > formally expressible, and *determinable* for the checker being considered. -- Regards, Dmitry A. Kazakov http://www.dmitry-kazakov.de