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=unavailable autolearn_force=no version=3.4.4 Path: eternal-september.org!reader01.eternal-september.org!reader02.eternal-september.org!news.eternal-september.org!news.eternal-september.org!feeder.eternal-september.org!gandalf.srv.welterde.de!news.jacob-sparre.dk!franka.jacob-sparre.dk!pnx.dk!.POSTED.rrsoftware.com!not-for-mail From: "Randy Brukardt" Newsgroups: comp.lang.ada Subject: Re: Why doesn't Ada allow user-defined attributes? Date: Thu, 20 Jul 2017 13:53:58 -0500 Organization: JSA Research & Innovation Message-ID: References: Injection-Date: Thu, 20 Jul 2017 18:53:59 -0000 (UTC) Injection-Info: franka.jacob-sparre.dk; posting-host="rrsoftware.com:24.196.82.226"; logging-data="10342"; mail-complaints-to="news@jacob-sparre.dk" X-Priority: 3 X-MSMail-Priority: Normal X-Newsreader: Microsoft Outlook Express 6.00.2900.5931 X-RFC2646: Format=Flowed; Original X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.6157 Xref: news.eternal-september.org comp.lang.ada:47475 Date: 2017-07-20T13:53:58-05:00 List-Id: I recall we considered this once, or maybe even twice. You can probably find some discussion in the development of Ada 2005 (that is, in the Ada 95 AIs) and the associated minutes. I don't really remember what the issues were and I have too much to do today to spend time looking it up for you. Good luck... - Randy "Shark8" wrote in message news:f8aceb25-018f-4248-bc1b-d3a145108e93@googlegroups.com... While reading up on VHDL I found out about its user-defined attributes and got to wondering why Ada doesn't have them. I can see how restricting them to those defined in the standard can keep the code "clean" and certainly [mostly] uniform... though the allowance of implementation-defined attributes undermines the last portion of that argument. -- Does anyone know?