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: 103376,e859f774bbb3dfb3 X-Google-Attributes: gid103376,domainid0,public,usenet X-Google-Language: ENGLISH,ASCII-7-bit Path: g2news1.google.com!postnews.google.com!w5g2000prd.googlegroups.com!not-for-mail From: Adam Beneschan Newsgroups: comp.lang.ada Subject: Re: another way to shoot yourself in the foot? Date: Wed, 25 Jun 2008 08:07:10 -0700 (PDT) Organization: http://groups.google.com Message-ID: References: <54157920-377a-441b-9b0b-f0c4f9ddffec@f36g2000hsa.googlegroups.com> <54435596-5e7f-4686-a2b7-1e22d7c4b186@p25g2000hsf.googlegroups.com> <483ugmvkl2ea.1hrqsq7ru4t1x$.dlg@40tude.net> <12dhu8e1w5ac9.1s9hzkf9d2rsy$.dlg@40tude.net> <21d80cc3-a3fb-49f5-a46e-6056bbef2ba7@y21g2000hsf.googlegroups.com> <1lbujyle8itjn$.vffs9far1ob9.dlg@40tude.net> NNTP-Posting-Host: 66.126.103.122 Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit X-Trace: posting.google.com 1214406430 21880 127.0.0.1 (25 Jun 2008 15:07:10 GMT) X-Complaints-To: groups-abuse@google.com NNTP-Posting-Date: Wed, 25 Jun 2008 15:07:10 +0000 (UTC) Complaints-To: groups-abuse@google.com Injection-Info: w5g2000prd.googlegroups.com; posting-host=66.126.103.122; posting-account=duW0ogkAAABjRdnxgLGXDfna0Gc6XqmQ User-Agent: G2/1.0 X-HTTP-UserAgent: Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv:1.7.12) Gecko/20050922 Fedora/1.7.12-1.3.1,gzip(gfe),gzip(gfe) Xref: g2news1.google.com comp.lang.ada:871 Date: 2008-06-25T08:07:10-07:00 List-Id: On Jun 24, 1:31 pm, Robert A Duff wrote: > where F returns limited, you are not passing a limited object, > but an implicit reference to some object that already existed before the > call to F. You can do that more clearly by having F return > an access type. I really think return-by-ref was a mistake. > Too bad we didn't think of it in 1992. For that matter, too > bad JDI didn't think of it in 1980. ;-) For that matter, too bad Grace Hopper didn't think of packages, procedures with parameters, etc., in 1959! :-) Unfortunately, sometimes progress only comes by learning from our screwups. I think I can state with certainty that there is some absolutely essential feature X such that a comp.lang.ada poster will legitimately be able to say, at some point in the future, "too bad Taft, Brukardt, Duff, et al. didn't think of X in 2005". Oh, well... -- Adam