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,c406e0c4a6eb74ed X-Google-Attributes: gid103376,public X-Google-Language: ENGLISH,ASCII-7-bit Path: g2news1.google.com!news1.google.com!news.glorb.com!news.zanker.org!border2.nntp.ams.giganews.com!border1.nntp.ams.giganews.com!nntp.giganews.com!feeder2.news.jippii.net!feeder1.news.jippii.net!news.cc.tut.fi!newsfeed1.funet.fi!newsfeeds.funet.fi!newsfeed.sunet.se!news01.sunet.se!dd.chalmers.se!legolas.gidenstam.org!nobody From: anders@legolas.gidenstam.se (Anders Gidenstam) Newsgroups: comp.lang.ada Subject: Re: ADA Popularity Discussion Request Date: Sun, 12 Sep 2004 17:20:51 +0200 Organization: Chalmers University of Technology, Sweden Message-ID: References: <49dc98cf.0408110556.18ae7df@posting.google.com> <1198227.gWQ0keDDOY@linux1.krischik.com> Reply-To: anders-www@gidenstam.org NNTP-Posting-Host: zsh.cs.chalmers.se Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii X-Newsreader: knews 1.0b.1 Xref: g2news1.google.com comp.lang.ada:3618 Date: 2004-09-12T17:20:51+02:00 List-Id: In article , Simon Wright writes: > anders@legolas.gidenstam.se (Anders Gidenstam) writes: > >> In article , >> Simon Wright writes: >> > The reference (after a _very_ strange compilation problem) loops with >> > 3.16a1; with 5.02a1 it does something which looks not unreasonable... > [...] >> Btw, I suppose you meant "does something which looks unreasonable" >> above, right? :) >> (Or does it work with 5.02a?! That would be a suprise..) > > Since I don't know what it is supposed to do I can't tell whether what > it seems to do is right. The program terminates without an exception > after printing out progress messages .. that's all I meant. Well, the small test program should output something like this when it works: # ./test_finalization_anywhere Tjo! Controlled_Local: Finalized 3221223464. (Dummy => 1, Bepa => 12) # On GNAT 3.15p it gets stuck in a loop and keeps calling Finalize. The cause seems to be that the part of the Limited_Controlled_Component belonging to Ada.Finalization.Controlled does not get initialized when the Limited_Controlled_Component, which is derived from it, is. The relevant part of the code in the package Add_Finalization.Anywhere.To_Limited_Uncontrolled: type Limited_Controlled is abstract new Uncontrolled with record Controller : Limited_Controlled_Component := Limited_Controlled_Component' (Ada.Finalization.Controlled with Object => To_Raw (Limited_Controlled'Unchecked_Access), Initialize => To_Operation (Raw_Initialize'Access), Finalize => To_Operation (Raw_Finalize'Access)); ... end record; What I try to do is to connect the real controlled type to the non-library level type, but with 3.15p the Ada.Finalization.Controlled part does not get initialized properly (it did with GNAT 3.11p). Does anyone know if it is possible to successfully initialize the Limited_Controlled_Component with the values above while at the same time ensuring that the Ada.Finalization.Controlled part is also initialized? (The full code is available here: http://www.gidenstam.org/Ada/add_finalization_anywhere20031106.tar.gz ) Best Regards, Anders Gidenstam -- "Luck is my middle name," said Rincewind, indistinctly. "Mind you, my first name is Bad." -- (Terry Pratchett, Interesting Times)