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,FREEMAIL_FROM autolearn=ham autolearn_force=no version=3.4.4 X-Google-Thread: 103376,fc52c633190162e0 X-Google-Attributes: gid103376,public X-Google-Language: ENGLISH,ASCII-7-bit Path: g2news1.google.com!news3.google.com!out03b.usenetserver.com!news.usenetserver.com!in04.usenetserver.com!news.usenetserver.com!nx01.iad01.newshosting.com!newshosting.com!130.81.64.211.MISMATCH!cycny01.gnilink.net!spamkiller2.gnilink.net!gnilink.net!trndny03.POSTED!0e8a908a!not-for-mail From: Hyman Rosen User-Agent: Thunderbird 1.5.0.10 (Windows/20070221) MIME-Version: 1.0 Newsgroups: comp.lang.ada Subject: Re: why learn C? References: <1172144043.746296.44680@m58g2000cwm.googlegroups.com> <1172161751.573558.24140@h3g2000cwc.googlegroups.com> <546qkhF1tr7dtU1@mid.individual.net> <5ZULh.48$YL5.40@newssvr29.news.prodigy.net> <1175215906.645110.217810@e65g2000hsc.googlegroups.com> <1175230352.808212.15550@e65g2000hsc.googlegroups.com> <1175236212.771445.135460@y66g2000hsf.googlegroups.com> <1175308871.266257.77460@e65g2000hsc.googlegroups.com> <1175499821.557815.303270@y80g2000hsf.googlegroups.com> <1175511246.9702.24.camel@localhost> In-Reply-To: <1175511246.9702.24.camel@localhost> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Message-ID: Date: Thu, 12 Apr 2007 16:05:00 GMT NNTP-Posting-Host: 162.84.197.141 X-Complaints-To: abuse@verizon.net X-Trace: trndny03 1176393900 162.84.197.141 (Thu, 12 Apr 2007 12:05:00 EDT) NNTP-Posting-Date: Thu, 12 Apr 2007 12:05:00 EDT Xref: g2news1.google.com comp.lang.ada:14944 Date: 2007-04-12T16:05:00+00:00 List-Id: Georg Bauhaus wrote: > And then, unfortunately, C++ doesn't have dynamic types > (unless I'm missing something): > > template > int foo(int n) > { > typedef class RangedInt Int; You are correct that C++ does not support this, but incorrect that it is unfortunate. The purely static types of C++ is what permits automatic instantiation to work. Having dynamic types is what leads to Ada's requirement of explicit instantiation.