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: 103376,1116ece181be1aea X-Google-Attributes: gid103376,public X-Google-ArrivalTime: 2003-09-08 23:52:00 PST Path: archiver1.google.com!postnews1.google.com!not-for-mail From: aek@vib.usr.pu.ru (Alexander Kopilovitch) Newsgroups: comp.lang.ada Subject: Re: Is the Writing on the Wall for Ada? Date: 8 Sep 2003 23:51:59 -0700 Organization: http://groups.google.com/ Message-ID: References: NNTP-Posting-Host: 62.152.82.24 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 8bit X-Trace: posting.google.com 1063090320 22735 127.0.0.1 (9 Sep 2003 06:52:00 GMT) X-Complaints-To: groups-abuse@google.com NNTP-Posting-Date: 9 Sep 2003 06:52:00 GMT Xref: archiver1.google.com comp.lang.ada:42303 Date: 2003-09-09T06:52:00+00:00 List-Id: Hyman Rosen wrote: > Why should we limit to inheriting from one type? > What is it about one that makes it better than two or more? Just for better visualization -:) . There are various suitable visual controls for a tree, but tell me where I can find an affordable ActiveX or Delphi control or at least Java beam (of good quality) for a DAG (directed acyclic graph) ? Alexander Kopilovitch aek@vib.usr.pu.ru Saint-Petersburg Russia