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=-1.9 required=5.0 tests=BAYES_00 autolearn=ham autolearn_force=no version=3.4.4 X-Google-Thread: 103376,703c4f68db81387d X-Google-Thread: 109fba,703c4f68db81387d X-Google-Thread: 115aec,703c4f68db81387d X-Google-Thread: f43e6,703c4f68db81387d X-Google-Attributes: gid103376,gid109fba,gid115aec,gidf43e6,public X-Google-Language: ENGLISH,ASCII-7-bit Path: g2news1.google.com!news1.google.com!newsread.com!news-xfer.newsread.com!news.glorb.com!cyclone1.gnilink.net!spamkiller2.gnilink.net!gnilink.net!trndny01.POSTED!c2bfcbcf!not-for-mail Subject: Re: Teaching new tricks to an old dog (C++ -->Ada) Newsgroups: comp.lang.ada,comp.lang.c++,comp.realtime,comp.software-eng References: <4229bad9$0$1019$afc38c87@news.optusnet.com.au> From: "Ed Falis" Content-Type: text/plain; format=flowed; delsp=yes; charset=us-ascii MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Message-ID: User-Agent: Opera M2(BETA1)/8.00 (Linux, build 913) Date: Sat, 05 Mar 2005 19:11:14 GMT NNTP-Posting-Host: 70.19.208.151 X-Complaints-To: abuse@verizon.net X-Trace: trndny01 1110049874 70.19.208.151 (Sat, 05 Mar 2005 14:11:14 EST) NNTP-Posting-Date: Sat, 05 Mar 2005 14:11:14 EST Xref: g2news1.google.com comp.lang.ada:8658 comp.lang.c++:44192 comp.realtime:942 comp.software-eng:4473 Date: 2005-03-05T19:11:14+00:00 List-Id: On Sat, 05 Mar 2005 10:24:19 -0500, Jeff C wrote: > Finally, I recommend that after about 48/72 hours you put this thread in > a kill file because I find it hard to believe that a cross-posted > question like this is not going to turn into a flame fest. Interestingly, it hasn't so far. Since I'm in the business of providing Ada for safety-critical apps, I'll make few comments just to try to redeem that last one. One of the big issues with both Java and C++ for safety-critical apps seems to be that there hasn't been much accomplished to define suitable subsets for high levels of certification. (I'm aware of the embedded C++ effort, and of some work on the Java side - someone from Aonix may want to comment on the latter). In contrast, a lot was done in Ada based on projects like the Boeing 777 in the early 90's, and Ada subset definition is currently in a "second generation" that is less restrictive, more amenable to reuse of existing code bases (despite more strict interpretation of certification standards), and often oriented towards IMA architectures (a la ARINC-653). Anyway, the upshot is that there's a lot of experience fielding applications written in Ada at high levels of safety certification, and that should count for something. - Ed