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: 103376,8eff44ec1bcf8433 X-Google-Attributes: gid103376,public X-Google-ArrivalTime: 2001-10-19 19:44:59 PST Path: archiver1.google.com!news1.google.com!newsfeed.stanford.edu!news-spur1.maxwell.syr.edu!news.maxwell.syr.edu!netnews.com!xfer02.netnews.com!newsfeed2.earthlink.net!newsfeed.earthlink.net!newsmaster1.prod.itd.earthlink.net!newsread1.prod.itd.earthlink.net.POSTED!not-for-mail Message-ID: <3BD0E523.E23FB134@acm.org> From: Jeffrey Carter X-Mailer: Mozilla 4.7 [en] (Win98; U) X-Accept-Language: en MIME-Version: 1.0 Newsgroups: comp.lang.ada Subject: Re: Container reqs References: <9qctpn$lil$1@news.huji.ac.il> <3nCy7.29644$ev2.35903@www.newsranger.com> <9qfgla$7sb$3@news.huji.ac.il> <9qnflg$pm$1@news.huji.ac.il> <3BCF57C8.DE99D9C@boeing.com> Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Date: Sat, 20 Oct 2001 02:44:57 GMT NNTP-Posting-Host: 158.252.147.31 X-Complaints-To: abuse@earthlink.net X-Trace: newsread1.prod.itd.earthlink.net 1003545897 158.252.147.31 (Fri, 19 Oct 2001 19:44:57 PDT) NNTP-Posting-Date: Fri, 19 Oct 2001 19:44:57 PDT Organization: EarthLink Inc. -- http://www.EarthLink.net X-Received-Date: Fri, 19 Oct 2001 19:41:15 PDT (newsmaster1.prod.itd.earthlink.net) Xref: archiver1.google.com comp.lang.ada:14952 Date: 2001-10-20T02:44:57+00:00 List-Id: Stephen Leake wrote: > > Jeffrey Carter writes: > > > Ehud Lamm wrote: > > > > > > What I dodn't like is the need for several, possibly nested, instantiations > > > simply to get a simple queue or hash table. > > > > I wholeheartedly agree. Wright's posting here a few days ago of the > > sequence of instantiations needed to obtain a simple structure with the > > Booch components clearly indicates that they fail this requirement. > > This is easy to say. But can you provide an alternative, that still > allows the container to handle all reasonable Ada types? I refer you to the PragmAda Reusable Components as an example of a component library that provides single instantiations for simple structures that handle all reasonable Ada types. http://home.earthlink.net/~jrcarter010/pragmarc.htm -- Jeffrey R. Carter PragmAda Software Engineering