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: 103376,7a3b1c6915ea1273 X-Google-NewGroupId: yes X-Google-Attributes: gida07f3367d7,domainid0,public,usenet X-Google-Language: ENGLISH,ASCII-7-bit Received: by 10.68.196.130 with SMTP id im2mr2383884pbc.3.1326508861801; Fri, 13 Jan 2012 18:41:01 -0800 (PST) Path: lh20ni179584pbb.0!nntp.google.com!news1.google.com!news2.google.com!newsfeed2.dallas1.level3.net!news.level3.com!bloom-beacon.mit.edu!newsswitch.lcs.mit.edu!nntp.TheWorld.com!not-for-mail From: Robert A Duff Newsgroups: comp.lang.ada Subject: Re: How many Ada compiler bugs are here? Date: Fri, 13 Jan 2012 21:41:01 -0500 Organization: The World Public Access UNIX, Brookline, MA Message-ID: References: <01dd6341-9c3c-4dcb-90f8-6ac66c65eb66@z1g2000vbx.googlegroups.com> <98adc34c-deed-4190-9e10-755cb886984f@n39g2000yqh.googlegroups.com> <5cm1d9xlavps$.1tjtc88r9ze21$.dlg@40tude.net> <6d352870-d204-4137-a562-5a0b67db1f80@h13g2000vbn.googlegroups.com> <15d37z3l8zllg$.3z2pj9cy5kvq.dlg@40tude.net> <7610c0ee-db98-4530-afab-f29e187ee7d0@h3g2000yqe.googlegroups.com> <1swdtf9umcv6h.1abrhg4hr4tdd$.dlg@40tude.net> <189376d3-eab5-44a2-a7fc-8a227d1f6d70@k10g2000yqk.googlegroups.com> <11extopcf5hsy.qk7psu30kjrp.dlg@40tude.net> NNTP-Posting-Host: shell01.theworld.com Mime-Version: 1.0 X-Trace: pcls6.std.com 1326508861 14305 192.74.137.71 (14 Jan 2012 02:41:01 GMT) X-Complaints-To: abuse@TheWorld.com NNTP-Posting-Date: Sat, 14 Jan 2012 02:41:01 +0000 (UTC) User-Agent: Gnus/5.1008 (Gnus v5.10.8) Emacs/21.3 (irix) Cancel-Lock: sha1:wA4USgRpBXhQ80Ax7Cgv/D9eTAk= Content-Type: text/plain; charset=us-ascii Date: 2012-01-13T21:41:01-05:00 List-Id: "Dmitry A. Kazakov" writes: > Cool! I never thought about that. Thanks! You're welcome! >>> BTW, I always wondered why cannot we have multiple parents of a package in >>> Ada? >> >> Sounds hugely complicated. > > Why? The only complicated thing would naming of the files. Tree structures are easier to understand than more-complicated graphs. I think it would make the visibility rules more complicated for users (and harder to implement). I'm not sure how to deal with private vs. public children. Probably other stuff I haven't thought of. Isn't Ada 2012 complicated enough? ;-) > Instantiation of multiple parent's generic child must be fun, but no more > than generic child already is. Yeah, well, generics multiply the complexity of anything they interact with. - Bob