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!.POSTED!not-for-mail From: Simon Wright Newsgroups: comp.lang.ada Subject: Re: Why are Ada compilers difficult to write ? Date: Sat, 23 Jun 2018 20:35:45 +0100 Organization: A noiseless patient Spider Message-ID: References: <584564c2-9f64-4965-b045-535cdaf899c0@googlegroups.com> <7cb22c58-3009-47f0-8fe7-62f3cd61785d@googlegroups.com> <2d617160-ac33-40e6-a06a-97cc0b53062d@googlegroups.com> <6f103699-811e-45e2-83ee-3b3606239cd8@googlegroups.com> <59ea4fa7-f1e7-41c8-b386-c76cf7f6d788@googlegroups.com> <35485cb1-7411-4843-a0b5-b87d79b9a93f@googlegroups.com> Mime-Version: 1.0 Content-Type: text/plain Injection-Info: reader02.eternal-september.org; posting-host="f17ff325a11ce261ed1721ba6e96943b"; logging-data="1521"; mail-complaints-to="abuse@eternal-september.org"; posting-account="U2FsdGVkX1/8QpRepoPA7sMO4el1m3lf6NtHHiqf4z8=" User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/25.3 (darwin) Cancel-Lock: sha1:QbUCyilz6Xmwuh4j+E4XTmP23Q8= sha1:12yyfZnGpSPSPhO8SCTjLE8MIgw= Xref: reader02.eternal-september.org comp.lang.ada:53273 Date: 2018-06-23T20:35:45+01:00 List-Id: Shark8 writes: > On Saturday, June 23, 2018 at 12:12:37 PM UTC-6, Dan'l Miller wrote: >> On Saturday, June 23, 2018 at 11:14:53 AM UTC-5, Shark8 wrote: >> > >> > SPARK is better than Rust in terms of safety/reliability; there >> > was a [possible] proposed extension to >> > SPARK to allow access-types in certain, controlled conditions that >> > was shown to the ARG. (They asked >> > that we not promulgate it, I think because they wanted to >> > publish/present it for their academic career.) >> >> Don't say any more. It might have been embargoed for a patent >> application not yet submitted. > > I wasn't going to; just saying that there are efforts to bring safe, > provable access-types into SPARK. (And, actually, I'm certain there's > several publicly available papers on the general topic; I've come > across a few... probably here: http://spark-2014.org/ ) https://arxiv.org/abs/1805.05576 (was posted on reddit/r/ada)