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Newsgroups: comp.lang.ada
Date: Sat, 23 Jun 2018 11:12:35 -0700 (PDT)
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Subject: Re: Why are Ada compilers difficult to write ?
From: "Dan'l Miller" <optikos@verizon.net>
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Xref: reader02.eternal-september.org comp.lang.ada:53271
Date: 2018-06-23T11:12:35-07:00
List-Id: <comp.lang.ada>

On Saturday, June 23, 2018 at 11:14:53 AM UTC-5, Shark8 wrote:
> On Saturday, June 23, 2018 at 6:44:41 AM UTC-6, Dan'l Miller wrote:
> > On Saturday, June 23, 2018 at 12:56:43 AM UTC-5, J-P. Rosen wrote:
> > > Le 22/06/2018 =C3=A0 18:10, Simon Clubley a =C3=A9crit=C2=A0:
> > > > 3.10.2 (according to Randy)
> > > >=20
> > > > Personally, I don't think it's something to be proud of however.
> > > >=20
> > > > When a language is used in the critical environments that Ada is us=
ed in,
> > > > it shouldn't have anything in it which is that difficult to underst=
and.
> > >=20
> > > Well, it is an attempt at making pointers safer, and this is inherent=
ly
> > > difficult. Other languages didn't even try...
> >=20
> > Except Rust nowadays, and hopefully Ada2020 will catch up
>=20
> SPARK is better than Rust in terms of safety/reliability; there was a [po=
ssible] proposed extension to
> SPARK to allow access-types in certain, controlled conditions that was sh=
own 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.