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,FREEMAIL_FROM, WEIRD_PORT autolearn=unavailable autolearn_force=no version=3.4.4 X-Received: by 2002:a02:1a8a:: with SMTP id 132mr1111254jai.14.1549134320362; Sat, 02 Feb 2019 11:05:20 -0800 (PST) X-Received: by 2002:aca:5395:: with SMTP id h143mr365940oib.6.1549134320088; Sat, 02 Feb 2019 11:05:20 -0800 (PST) Path: eternal-september.org!reader01.eternal-september.org!feeder.eternal-september.org!news.gegeweb.eu!gegeweb.org!fdn.fr!proxad.net!feeder1-2.proxad.net!209.85.166.215.MISMATCH!k10no431580itk.0!news-out.google.com!v71ni598ita.0!nntp.google.com!q69no432584itb.0!postnews.google.com!glegroupsg2000goo.googlegroups.com!not-for-mail Newsgroups: comp.lang.ada Date: Sat, 2 Feb 2019 11:05:19 -0800 (PST) In-Reply-To: <2qb5E.172675$592.78651@fx16.am4> Complaints-To: groups-abuse@google.com Injection-Info: glegroupsg2000goo.googlegroups.com; posting-host=85.168.19.89; posting-account=O_NgcgoAAABs6pgCjroQBmOBL5ZZGPUc NNTP-Posting-Host: 85.168.19.89 References: <987a6ff2-32d0-45a0-b90a-be9fbf1ff47b@googlegroups.com> <048a6dce-ee26-4850-a1db-980fef58e8a2@googlegroups.com> <2qb5E.172675$592.78651@fx16.am4> User-Agent: G2/1.0 MIME-Version: 1.0 Message-ID: <1af84a62-9236-403e-a87b-59f1a82cb3a5@googlegroups.com> Subject: Re: Yet another gnat bug From: George Shapovalov Injection-Date: Sat, 02 Feb 2019 19:05:20 +0000 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable Xref: reader01.eternal-september.org comp.lang.ada:55433 Date: 2019-02-02T11:05:19-08:00 List-Id: On Saturday, February 2, 2019 at 8:13:04 AM UTC+1, Per Sandberg wrote: > I did put some effort to reduce the problem and the workaround is quite= =20 > simple, in file "wann-nets.ads:69" mark the procedure Del_Neuron as=20 > abstract instead of null. >=20 > Here is the small reproducible i ended up with after stripping the code: Wow, thank you for your time! Looking at how that final code is so small and basic, and thtat snippet of = gnat internals that was dug out on another comment above, it looks like gna= t does not implement null primitives in full.. (which is a pity, as null me= thod makes more sense there than abstract, but well..) Once I am completely back from Fosdem I'll play with this a bit more, to se= e if that's package hierarchy, generics or combination thereof that is trig= gering it and submit a bug with final details.. Thanks again!