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=-0.3 required=5.0 tests=BAYES_00,FREEMAIL_FROM, REPLYTO_WITHOUT_TO_CC autolearn=no autolearn_force=no version=3.4.4 X-Google-Language: ENGLISH,ASCII-7-bit X-Google-Thread: 103376,cda33fc7f63c2885 X-Google-Attributes: gid103376,public X-Google-ArrivalTime: 2002-01-10 00:47:23 PST Path: archiver1.google.com!news1.google.com!newsfeed.stanford.edu!logbridge.uoregon.edu!newsengine.sol.net!wn1feed!wn2feed!worldnet.att.net!164.128.36.58!newsfeed-zh.ip-plus.net!news.ip-plus.net!not-for-mail From: Thomas Wolf Newsgroups: comp.lang.ada Subject: Re: list strawman Date: Thu, 10 Jan 2002 09:47:20 +0100 Organization: --- Message-ID: References: <6i%_7.8890$fG.50588@rwcrnsc51.ops.asp.att.net> <3C3CAFEC.D24955EC@acm.org> Reply-To: t_wolf@angelfire.com NNTP-Posting-Host: pargate2.paranor.ch X-Trace: rex.ip-plus.net 1010652442 9611 195.65.4.190 (10 Jan 2002 08:47:22 GMT) X-Complaints-To: abuse@ip-plus.net NNTP-Posting-Date: Thu, 10 Jan 2002 08:47:22 +0000 (UTC) X-Newsreader: MicroPlanet Gravity v2.50 Xref: archiver1.google.com comp.lang.ada:18729 Date: 2002-01-10T09:47:20+01:00 List-Id: jrcarter@acm.org wrote: > I realize I've been away for a while and may not have seen some minor > changes to the functionality, but "=" for Elements is not needed to > implement a list. "=" is not used, so there's no need to specify it in > the generic formal part. Yes, element equality is need to implement list equality. And if it really were not used, it should be made explicitly unavailable to avoid mistakenly using a re-emerging predefined equality all the same by declaring it as abstract in the private part. -- ----------------------------------------------------------------- Thomas Wolf e-mail: t_wolf@angelfire.com