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: 103376,1a52c822fc0dbb23 X-Google-Attributes: gid103376,public X-Google-Language: ENGLISH,ASCII-7-bit Path: g2news1.google.com!news4.google.com!proxad.net!nerim.net!oleane.net!oleane!news.ecp.fr!news.jacob-sparre.dk!pnx.dk!not-for-mail From: "Randy Brukardt" Newsgroups: comp.lang.ada Subject: Re: Rational for not making cursor tagged in Containers Date: Fri, 20 Apr 2007 14:55:34 -0500 Organization: Jacob's private Usenet server Message-ID: References: <1176998738.656903.141250@q75g2000hsh.googlegroups.com> <1177010938.200523.325290@p77g2000hsh.googlegroups.com> <1a8y2vakorfhx.225uqh4hifpd$.dlg@40tude.net> <1xmzi7newnilp.23m3zze8h9yi.dlg@40tude.net> <1177066583.5876.30.camel@localhost.localdomain> <1177080147.5876.87.camel@localhost.localdomain> <1q1kx2jlcvnuj.ck0711mj4few$.dlg@40tude.net> <1177097829.26685.36.camel@localhost.localdomain> NNTP-Posting-Host: static-69-95-181-76.mad.choiceone.net X-Trace: jacob-sparre.dk 1177098819 1098 69.95.181.76 (20 Apr 2007 19:53:39 GMT) X-Complaints-To: news@jacob-sparre.dk NNTP-Posting-Date: Fri, 20 Apr 2007 19:53:39 +0000 (UTC) X-Priority: 3 X-MSMail-Priority: Normal X-Newsreader: Microsoft Outlook Express 6.00.2800.1807 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1807 Xref: g2news1.google.com comp.lang.ada:15168 Date: 2007-04-20T14:55:34-05:00 List-Id: "Georg Bauhaus" wrote in message news:1177097829.26685.36.camel@localhost.localdomain... ... > By analogy, and consistent with the desired record interfaces, > I will be asking for task type interfaces (no, not really). Ada already has task interfaces, so you don't need to ask. ;-) Which is why Dmitry's point is reasonable. There are things you can't do (or can't do safely) with private types, and why not? Shouldn't it be possible to create a complete abstraction that works like the built-in ones? After all, it's not about the syntax: X := Y; looks simple, but I've had to debug as much as 1K of machine code that actually implements it. There can be a lot of complexity hidden behind the two characters ":=". There is no reason to think that it would be a problem if '.' or '(' or '"' had similar complexity. (Indeed, there are cases where they do, you just can't write such cases yourself.) Randy.