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: 103376,1592759aa83d0d45 X-Google-Attributes: gid103376,public X-Google-ArrivalTime: 2003-05-26 03:07:37 PST Path: archiver1.google.com!news1.google.com!newsfeed.stanford.edu!news-spur1.maxwell.syr.edu!news.maxwell.syr.edu!newsfeed.icl.net!newsfeed.fjserv.net!colt.net!news.tele.dk!news.tele.dk!small.news.tele.dk!newsfeed1.e.nsc.no!nsc.no!nextra.com!uio.no!ntnu.no!not-for-mail From: Preben Randhol Newsgroups: comp.lang.ada Subject: Re: Suggestion for Ada 200x - Interface inheritance Date: Mon, 26 May 2003 10:07:37 +0000 (UTC) Organization: Norwegian university of science and technology Message-ID: References: <0Pxza.699607$OV.652508@rwcrnsc54> <5ad0dd8a.0305240435.337d9373@posting.google.com> <8khsab.h941.ln@skymaster> NNTP-Posting-Host: kiuk0152.chembio.ntnu.no X-Trace: tyfon.itea.ntnu.no 1053943657 15652 129.241.83.78 (26 May 2003 10:07:37 GMT) X-Complaints-To: usenet@itea.ntnu.no NNTP-Posting-Date: Mon, 26 May 2003 10:07:37 +0000 (UTC) User-Agent: slrn/0.9.7.4 (Linux) Xref: archiver1.google.com comp.lang.ada:37778 Date: 2003-05-26T10:07:37+00:00 List-Id: Jean-Pierre Rosen wrote: > Sigh... In the green language proposal, associations between formal > and actual used ":=" for in parameters, "=:" for out parameters, and > ":=:" for in out parameters. > > It was later dropped, I don't remember why, but presumably because it > was felt that the gain was not worth the extra complexity. I don't know why it was dropped, but I would say why I would drop it it would be that it has very low readability. := and =: are too similar and an error can easily be overlooked IMHO. At least I know *I* could easily do that mistake. -- Preben Randhol http://www.pvv.org/~randhol/