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, REPLYTO_WITHOUT_TO_CC autolearn=no 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!news.eternal-september.org!feeder.eternal-september.org!aioe.org!.POSTED!not-for-mail From: "Dmitry A. Kazakov" Newsgroups: comp.lang.ada Subject: Re: Making sense of predicates Date: Tue, 22 Oct 2013 21:26:28 +0200 Organization: cbb software GmbH Message-ID: <1d57t46pwft4z$.ktho2ymc6bso$.dlg@40tude.net> References: <87iowprctp.fsf@adaheads.sparre-andersen.dk> <7d18f68a-f15e-4e81-bbbe-22010c513a84@googlegroups.com> <0eb80b2f-696e-45cd-9e6c-724ce3866f79@googlegroups.com> Reply-To: mailbox@dmitry-kazakov.de NNTP-Posting-Host: GYYt8Fzv3ax+aWVyAAu7jw.user.speranza.aioe.org Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit X-Complaints-To: abuse@aioe.org User-Agent: 40tude_Dialog/2.0.15.1 X-Notice: Filtered by postfilter v. 0.8.2 Xref: news.eternal-september.org comp.lang.ada:17506 Date: 2013-10-22T21:26:28+02:00 List-Id: On Tue, 22 Oct 2013 10:15:13 -0700 (PDT), Dan'l Miller wrote: > On Tuesday, October 22, 2013 11:30:30 AM UTC-5, Dmitry A. Kazakov wrote: >> The goal should be a leaner and more powerful type system with the present >> type system implemented on top of it at the library level, 100% backward >> compatible. > > Ahhhh, you seek effectively the C++ vision, No idea what makes you think so. Anyway C++ is beyond repair because it conflates class-wide and specific types. Keeping them apart is essential to the consistency of the types system. > What you seek is a better way of layering the compiler and extending the compiler, I seek a better types system because of problems the current one causes, like overuse of generics and run-time checks. I, as a programmer, need more static checks, more reuse, far less debugging. >> P.S. Putting up such lists is a completely wasted time, as nothing will >> ever happen, until somebody with the influence of Ichbiah or Taft will nuke >> the swamp again. > > Your pessimism here presumes that neither Tucker Taft nor anyone else of > visionary influence reads comp.lang.ada, which I suspect is entirely > false. ARG's decisions are not influenced by the noise generated here in c.l.a. > Hence, when good ideas are well-formed, they might inspire those > on the ISO standardization committee (or at AdaCore & the like) to work on > such goals. Ideas are secondary to a vision of the language as a whole and the direction it has to evolve. This is vision is absent now. -- Regards, Dmitry A. Kazakov http://www.dmitry-kazakov.de