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: 103376,5ac1c1813029999b X-Google-Attributes: gid103376,public X-Google-ArrivalTime: 2002-11-18 02:24:46 PST Path: archiver1.google.com!postnews1.google.com!not-for-mail From: wojtek@power.com.pl (Wojtek Narczynski) Newsgroups: comp.lang.ada Subject: Re: A bunch of questions that come after "Hello world" Date: 18 Nov 2002 02:24:46 -0800 Organization: http://groups.google.com/ Message-ID: <5ad0dd8a.0211180224.1895e8ea@posting.google.com> References: <5ad0dd8a.0211131244.42603699@posting.google.com> <5ad0dd8a.0211140218.6d48be15@posting.google.com> <5ad0dd8a.0211150950.4d550163@posting.google.com> NNTP-Posting-Host: 217.98.138.16 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 8bit X-Trace: posting.google.com 1037615086 26585 127.0.0.1 (18 Nov 2002 10:24:46 GMT) X-Complaints-To: groups-abuse@google.com NNTP-Posting-Date: 18 Nov 2002 10:24:46 GMT Xref: archiver1.google.com comp.lang.ada:31030 Date: 2002-11-18T10:24:46+00:00 List-Id: Robert A Duff wrote in message news:... > Part of the reason for these things is history. Ada tasks were > originally just tasks -- there were no task types. Similar to the way > packages are not "objects" -- there are no "package types". This was > around 1980 or so. Task types were added before the 1983 standard. > Protected types (added in Ada 95) were somewhat modeled after tasks, > and so inherited some of the oddities. Thanks for the explanation. I will have to keep the evolutionary nature of Ada syntax in mind. > Ada does not support multi-dispatch. If you have two controlling > operands, they both have to have the same tag. What do you mean? procedure( X: Type1'Class; Y: Type2'Class); Compiles for me. Thanks, Wojtek