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-Language: ENGLISH,ASCII-7-bit X-Google-Thread: 103376,c4190027f6de5b93 X-Google-Attributes: gid103376,public X-Google-ArrivalTime: 2001-01-27 10:47:01 PST Path: supernews.google.com!sn-xit-02!supernews.com!isdnet!newsfeed.icl.net!ldn-newsfeed.speedport.net!newsfeed.speedport.net!newspeer.clara.net!news.clara.net!news2.vas-net.net!server2.netnews.ja.net!server6.netnews.ja.net!server4.netnews.ja.net!news5-gui.server.ntli.net!ntli.net!news2-win.server.ntlworld.com.POSTED!not-for-mail Message-ID: <3A7316F6.87EDF50B@ntlworld.com> From: "martin.m.dowie" Reply-To: martin.m.dowie@ntlworld.com X-Mailer: Mozilla 4.72 [en] (Win95; U) X-Accept-Language: en MIME-Version: 1.0 Newsgroups: comp.lang.ada Subject: Re: Computation of exception handling References: <94jr16$j2q$1@nnrp1.deja.com> <94ki0n$j4d$1@usenet.rational.com> <3a6ef4d9$1@pull.gecm.com> <3a7188ec$1@pull.gecm.com> <94s4ov$qfo$1@nnrp1.deja.com> Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Date: Sat, 27 Jan 2001 18:44:06 +0000 NNTP-Posting-Host: 213.104.120.17 X-Complaints-To: abuse@ntlworld.com X-Trace: news2-win.server.ntlworld.com 980621121 213.104.120.17 (Sat, 27 Jan 2001 18:45:21 GMT) NNTP-Posting-Date: Sat, 27 Jan 2001 18:45:21 GMT Organization: ntlworld News Service Xref: supernews.google.com comp.lang.ada:4608 Date: 2001-01-27T18:44:06+00:00 List-Id: i've yet to come across any definitions of a safe subset of Ada that don't exclude exceptions - do you know of any, or are they normally excluded because it makes life (much) easier from a proof/certification stand point? Robert Dewar wrote: > This is only true if the definition of 'safe' arbitrarily > says that exceptions are not allowed, in which case it is > simply restating this definition. > > There is no technical principle that makes exceptions > inherently unsafe in any reasonable technical meaning > of the term.