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!feeder.eternal-september.org!nntp-feed.chiark.greenend.org.uk!ewrotcd!newsfeed.xs3.de!io.xs3.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: How to get Ada to ?cross the chasm?? Date: Wed, 9 May 2018 16:57:16 -0500 Organization: JSA Research & Innovation Message-ID: References: <1c73f159-eae4-4ae7-a348-03964b007197@googlegroups.com> <87k1su7nag.fsf@nightsong.com> <87po2la2qt.fsf@nightsong.com> <87in8buttb.fsf@jacob-sparre.dk> <87wowqpowu.fsf@nightsong.com> <16406268-83df-4564-8855-9bd0fe9caac0@googlegroups.com> <87o9i2pkcr.fsf@nightsong.com> <87in88m43h.fsf@nightsong.com> <87efiuope8.fsf@nightsong.com> <322f9b26-01de-4753-bb50-6ef2f3d993d8@googlegroups.com> <87a7th9pd1.fsf@nightsong.com> <87h8no1nli.fsf@nightsong.com> <78ca61a2-5d11-46f4-9ce7-7fce500ca1dd@googlegroups.com> Injection-Date: Wed, 9 May 2018 21:57:18 -0000 (UTC) Injection-Info: franka.jacob-sparre.dk; posting-host="rrsoftware.com:24.196.82.226"; logging-data="29349"; 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 V6.00.2900.7246 Xref: reader02.eternal-september.org comp.lang.ada:52175 Date: 2018-05-09T16:57:16-05:00 List-Id: "Egil H H" wrote in message news:78ca61a2-5d11-46f4-9ce7-7fce500ca1dd@googlegroups.com... > On Tuesday, May 8, 2018 at 10:41:33 PM UTC+2, Niklas Holsti wrote: >> On 18-05-04 01:27 , Randy Brukardt wrote: >> >> [snip] >> >> > There is no realistic chance that Ada will >> > ever be changed enough to make it amenable to GC. >> >> Ouch and wow, when did that direction change? >> >> As I remember it, for a long time the mantra was that Ada (83, 95, ...) >> was compatible with GC, but vendors did not implement GC because there >> was no immediate demand from the current users (chicken and egg >> situation). >> > > Indeed, > RM 4.8(15/3): > "27 {AI05-0229-1} Implementations are permitted, but not required, to > provide garbage collection." Yes, it's permitted -- but nothing says that it can be useful. :-) It could be useful on types that have no subcomponents that need finalization -- but that rules out most of the Ada library and a good percentage of the open source libraries out there as well. Randy.