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: 103376,79bbf7e359159d0d X-Google-Attributes: gid103376,public X-Google-ArrivalTime: 2001-04-13 09:18:19 PST Path: supernews.google.com!sn-xit-03!supernews.com!newsfeed.wirehub.nl!feed2.onemain.com!feed1.onemain.com!newsfeed.icl.net!newspeer.clara.net!news.clara.net!news5-gui.server.ntli.net!ntli.net!news11-gui.server.ntli.net.POSTED!not-for-mail Sender: mjw@golux Newsgroups: comp.lang.ada Subject: Re: newbie can't get exceptions to work! References: <3ACDB29E.45B91316@earthlink.net> <9ao1if$cq9$1@taliesin.netcom.net.uk> <3ACFC902.115624A1@mindspring.com> From: Matthew Woodcraft Message-ID: <87u23shj8s.fsf@chiark.greenend.org.uk> User-Agent: Gnus/5.0803 (Gnus v5.8.3) Emacs/20.7 MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Date: 13 Apr 2001 17:12:03 +0100 NNTP-Posting-Host: 62.253.132.90 X-Complaints-To: abuse@ntlworld.com X-Trace: news11-gui.server.ntli.net 987178316 62.253.132.90 (Fri, 13 Apr 2001 17:11:56 BST) NNTP-Posting-Date: Fri, 13 Apr 2001 17:11:56 BST Organization: ntl Cablemodem News Service Xref: supernews.google.com comp.lang.ada:6863 Date: 2001-04-13T17:12:03+01:00 List-Id: Brian Rogoff writes: > My recollection is that the last time this was discussed Robert Dewar > confirmed the statement that there was no discussion of using [] as array > brackets at all, the choice of () had to do with the DoD requirements on > the character set to support (now) obsolete machines. All of this singing > and dancing about the virtues of this choice are post facto > rationalizations. But it does allow an interesting possibility for a language extension: [] could be allowed as a user-defined 'operator' for array-like types, without any fear of introducing ambiguities with the existing forms of array reference. Not very elegant, maybe, but practical and safe. -M-