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-Language: ENGLISH,ASCII-7-bit X-Google-Thread: 103376,7001494ace46eea7 X-Google-Attributes: gid103376,public X-Google-ArrivalTime: 2002-09-18 10:15:05 PST Path: archiver1.google.com!news1.google.com!newsfeed.stanford.edu!canoe.uoregon.edu!arclight.uoregon.edu!newsfeed.mathworks.com!cyclone.swbell.net!bos-service1.ext.raytheon.com!dfw-service2.ext.raytheon.com.POSTED!not-for-mail Message-ID: <3D88ADF6.302824D8@raytheon.com> From: Mark Johnson X-Mailer: Mozilla 4.76 [en] (Windows NT 5.0; U) X-Accept-Language: en MIME-Version: 1.0 Newsgroups: comp.lang.ada Subject: Re: Overriding discriminants perplexes GNAT 3.14p References: Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Date: Wed, 18 Sep 2002 11:46:46 -0500 NNTP-Posting-Host: 192.27.48.39 X-Complaints-To: news@ext.ray.com X-Trace: dfw-service2.ext.raytheon.com 1032367635 192.27.48.39 (Wed, 18 Sep 2002 11:47:15 CDT) NNTP-Posting-Date: Wed, 18 Sep 2002 11:47:15 CDT Organization: Raytheon Company Xref: archiver1.google.com comp.lang.ada:29119 Date: 2002-09-18T11:46:46-05:00 List-Id: "Dmitry A.Kazakov" wrote: > > Hi! > The following primitive code causes "GNAT bug detected" report: > [snip example program] > This results in a bug report (crash) under Windows. > Hmm. I'm running GNAT on Linux. I ran gnatchop on your source and it compiles just fine for me. I suggest you submit a bug report to ACT. > What wonders me is which sort of validation uses ACT if such bugs go > through? People rightly criticize MS VC++, but the situation with Ada > compilers isn't much better. I judge from my experience with GNAT and > Object Ada. It is a permanent battle of finding work-arounds for countless > compiler bugs. Is there any good Ada compilers since DEC gone? > Quite a bit of validation actually. My experience with a "formal release" is a several week freeze period where their full test suite is exercised on a variety of platforms and only critical bugs are fixed. We brought over a couple million lines of code from VADS and Apex w/ only a handful of compiler bugs (and far more of our own bugs...). As a paying customer of ACT, I am pretty satisfied with both the product and support provided. If I have some novel situation such as you do, they provide... - almost immediate acknowledgment of the problem - a work around usually within hours - a version of the compiler w/ a permanent fix, usually within a day or two - sometimes a little longer The project has stabilized on one of the formal releases though I expect to step up to a newer version as GPS gets through the beta process (to get full support). --Mark