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-Thread: a07f3367d7,f135b0b2991e6686 X-Google-Attributes: gida07f3367d7,public,usenet X-Google-NewGroupId: yes X-Google-Language: ENGLISH,ASCII Path: g2news2.google.com!postnews.google.com!g19g2000yqo.googlegroups.com!not-for-mail From: Martin Newsgroups: comp.lang.ada Subject: Re: C++0x : no 'concepts' Date: Wed, 9 Sep 2009 05:15:56 -0700 (PDT) Organization: http://groups.google.com Message-ID: <4526de47-31b6-46ec-8d58-bcbfbd294668@g19g2000yqo.googlegroups.com> References: <0157a9fd-a1b2-473d-bc85-f84911720520@o41g2000yqb.googlegroups.com> <4aa79ba6$0$32663$9b4e6d93@newsspool2.arcor-online.net> NNTP-Posting-Host: 20.133.0.8 Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable X-Trace: posting.google.com 1252498556 24170 127.0.0.1 (9 Sep 2009 12:15:56 GMT) X-Complaints-To: groups-abuse@google.com NNTP-Posting-Date: Wed, 9 Sep 2009 12:15:56 +0000 (UTC) Complaints-To: groups-abuse@google.com Injection-Info: g19g2000yqo.googlegroups.com; posting-host=20.133.0.8; posting-account=g4n69woAAACHKbpceNrvOhHWViIbdQ9G User-Agent: G2/1.0 X-HTTP-UserAgent: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-GB; rv:1.9.1.3) Gecko/20090824 Firefox/3.5.3,gzip(gfe),gzip(gfe) Xref: g2news2.google.com comp.lang.ada:8246 Date: 2009-09-09T05:15:56-07:00 List-Id: On Sep 9, 1:12=A0pm, Georg Bauhaus wrote: > Martin schrieb: > > > Crickey! How glad am Ada has strong typing and a generic contract > > model!! > > >http://www.ddj.com/cpp/218600111 > > > And that was going to make life 'simpler'!?!?!? > > Just saw this, addressing the question: > > "The current definition of concepts and requirements for use drowns the > programmer in complexities of a magnitude not warranted by the need to > express type-checked 9constrained) generic programming." > > From: Simplifying the use of concepts, linked in the article. > > - > > Fantasizing, could we have, in Ada, > > - recursive instantiations of pure generics? > - an optional Compiler package? Similarly, there was a paper on 'implicit instantiations' - I can think of times when that might have been v.handy... Cheers -- Martin