From: Optikos <optikos@verizon.net>
Subject: Re: Intervention needed?
Date: Fri, 22 Mar 2019 15:36:00 -0700 (PDT)
Date: 2019-03-22T15:36:00-07:00 [thread overview]
Message-ID: <3787cc29-ce65-4e26-a018-64b655202695@googlegroups.com> (raw)
In-Reply-To: <87sgvekeb4.fsf@nightsong.com>
On Friday, March 22, 2019 at 1:29:53 PM UTC-4, Paul Rubin wrote:
> "Jeffrey R. Carter" <spam.jrcarter.not@spam.not.acm.org> writes:
> > In the late 1980s-early 1990s... in Ada, the compiler knew what was
> > aliased and what wasn't, while in C everything is implicitly aliased,
> > and this allowed optimizations of Ada that could not be done for C.
>
> C later got the "restrict" keyword to help deal with this.
But is the restrict keyword actually utilized in industrial practice outside of benchmarks and perhaps high-performance numerical processing? (I thought that the HPC people were all migrating to Julia as the new darling, btw.)
> Also by the
> late 1980s ANSI C was standardized saying that objects of differing
> types couldn't be aliased, or the notorious UB would result. That
> probably made some uses of pointer casting illegal, that may have been
> common in programs back then.
By Jeffrey Carter's mentioning of early 1990s, K&R C had died a quick death in industrial practice by the early 1990s—mainly because industrial practice was utilizing C compilers •other than• AT&T issue3, issue4, or issue5 authentic reference-implementation compilers, so everyone was utilizing poor knock-offs of AT&T-issue K&R C. Nearly every programmer and manager wanted to throw K&R C in the trashcan ASAP to flee from the compiler bugs & odd features/hacks that ANSI C corrected (ANSI C 1988's & ISO C 1990's trigraph & digraph abominations notwithstanding).
Conversely, in the early 1990s nearly 100% Ada83 compilers were from companies other than the authors of GNAT. NYU's/Dewar's/Schonberg's EduAda83 was still an interpreter back then (and had no association with FSF GCC yet), so there was little interest in EduAda83 outside of university classrooms.
next prev parent reply other threads:[~2019-03-22 22:36 UTC|newest]
Thread overview: 146+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-03-08 16:43 Intervention needed? Olivier Henley
2019-03-08 16:58 ` Dmitry A. Kazakov
2019-03-08 17:31 ` gautier_niouzes
2019-03-11 14:31 ` antispam
2019-03-11 15:07 ` gautier_niouzes
2019-03-11 17:19 ` Dmitry A. Kazakov
2019-03-11 15:34 ` Lucretia
2019-03-11 17:30 ` Simon Wright
2019-03-11 17:42 ` Dmitry A. Kazakov
2019-03-11 18:14 ` AdaMagica
2019-03-11 19:52 ` Olivier Henley
2019-03-11 20:04 ` Lucretia
2019-03-11 22:08 ` Jeffrey R. Carter
2019-03-12 2:04 ` Lucretia
2019-03-12 13:17 ` Olivier Henley
2019-03-12 16:32 ` Jeffrey R. Carter
2019-03-12 16:56 ` Lucretia
2019-03-12 17:20 ` Lucretia
2019-03-12 18:14 ` Olivier Henley
2019-03-12 19:21 ` Lucretia
2019-03-12 21:53 ` Randy Brukardt
2019-03-13 10:50 ` Jere
2019-03-17 12:52 ` Optikos
2019-03-17 16:37 ` Luke A. Guest
2019-03-17 16:48 ` Paul Rubin
2019-03-20 0:49 ` Optikos
2019-03-20 1:04 ` Paul Rubin
2019-03-20 1:19 ` Optikos
2019-03-18 23:36 ` Randy Brukardt
2019-03-19 2:18 ` Optikos
2019-03-19 8:44 ` Dmitry A. Kazakov
2019-03-19 9:53 ` Optikos
2019-03-19 22:13 ` Randy Brukardt
2019-03-19 22:26 ` Paul Rubin
2019-03-20 1:08 ` Jere
2019-03-22 2:26 ` Randy Brukardt
2019-03-23 15:56 ` Jeffrey R. Carter
2019-03-23 21:38 ` Paul Rubin
2019-03-19 22:36 ` Optikos
2019-03-19 23:13 ` Randy Brukardt
2019-03-20 1:28 ` Jere
2019-03-20 8:42 ` Dmitry A. Kazakov
2019-03-22 2:00 ` Randy Brukardt
2019-03-22 11:10 ` Jere
2019-03-23 8:03 ` Randy Brukardt
2019-03-23 21:32 ` Jere
2019-03-20 7:59 ` Optikos
2019-03-22 2:16 ` Randy Brukardt
2019-03-22 8:38 ` Optikos
2019-03-22 10:54 ` Jere
2019-03-23 7:53 ` Randy Brukardt
2019-03-23 13:59 ` Jere
2019-03-23 21:19 ` Jere
2019-03-23 21:29 ` Paul Rubin
2019-03-26 8:09 ` Optikos
2019-03-20 1:20 ` Jere
2019-03-22 2:30 ` Randy Brukardt
2019-03-22 9:08 ` Dmitry A. Kazakov
2019-03-22 22:23 ` Optikos
2019-03-27 19:20 ` G. B.
2019-03-27 21:02 ` Paul Rubin
2019-03-28 7:01 ` Maciej Sobczak
2019-03-28 7:17 ` Paul Rubin
2019-03-28 8:39 ` Simon Wright
2019-03-30 4:31 ` Paul Rubin
2019-03-30 22:14 ` Robert A Duff
2019-03-30 22:55 ` Paul Rubin
2019-03-28 9:06 ` Dmitry A. Kazakov
2019-03-28 20:48 ` G. B.
2019-03-29 5:13 ` Bojan Bozovic
2019-03-29 8:13 ` Dmitry A. Kazakov
2019-03-29 6:57 ` Maciej Sobczak
2019-03-29 7:13 ` Paul Rubin
2019-03-29 8:39 ` Dmitry A. Kazakov
2019-04-01 15:13 ` Optikos
2019-04-01 16:51 ` Dmitry A. Kazakov
2019-04-01 21:42 ` Randy Brukardt
2019-04-02 8:30 ` Dmitry A. Kazakov
2019-04-02 15:53 ` Anh Vo
2019-03-19 22:04 ` Randy Brukardt
2019-03-19 22:22 ` Paul Rubin
2019-03-19 23:01 ` Randy Brukardt
2019-03-19 9:37 ` Optikos
2019-03-19 22:21 ` Randy Brukardt
2019-03-29 17:56 ` Florian Weimer
2019-03-29 22:17 ` Randy Brukardt
2019-03-29 22:35 ` Florian Weimer
2019-04-01 21:17 ` Randy Brukardt
2019-03-29 17:41 ` Florian Weimer
2019-03-29 22:16 ` Randy Brukardt
2019-03-29 22:43 ` Florian Weimer
2019-04-01 21:29 ` Randy Brukardt
2019-04-01 22:14 ` Simon Wright
2019-04-02 21:55 ` Randy Brukardt
2019-04-04 15:07 ` Simon Wright
2019-03-12 21:41 ` Randy Brukardt
2019-03-13 9:10 ` Maciej Sobczak
2019-03-13 11:08 ` Jere
2019-03-13 11:11 ` Jere
2019-03-13 11:59 ` Jere
2019-03-13 13:44 ` Olivier Henley
2019-03-13 15:56 ` Simon Wright
2019-03-13 16:25 ` Olivier Henley
2019-03-14 0:40 ` Simon Wright
2019-03-13 16:27 ` Olivier Henley
2019-03-14 22:41 ` Randy Brukardt
2019-03-16 21:30 ` Olivier Henley
2019-03-29 17:38 ` Florian Weimer
2019-03-13 13:23 ` Olivier Henley
2019-03-22 11:10 ` Lucretia
2019-03-22 14:09 ` J-P. Rosen
2019-03-22 16:41 ` Jeffrey R. Carter
2019-03-22 17:29 ` Paul Rubin
2019-03-22 22:36 ` Optikos [this message]
2019-04-01 7:28 ` gautier_niouzes
-- strict thread matches above, loose matches on Subject: below --
2019-03-25 19:14 Randy Brukardt
2019-03-25 20:44 ` Dmitry A. Kazakov
2019-03-28 0:48 ` Jere
2019-04-02 22:07 Randy Brukardt
2019-04-03 7:29 ` Dmitry A. Kazakov
2019-04-03 14:31 ` Optikos
2019-04-03 14:54 ` Dmitry A. Kazakov
2019-04-03 15:29 ` Optikos
2019-04-03 16:16 ` Simon Wright
2019-04-03 17:15 ` Dmitry A. Kazakov
2019-04-03 21:12 ` Simon Wright
2019-04-04 7:09 ` Dmitry A. Kazakov
2019-04-04 5:44 ` Maciej Sobczak
2019-04-04 7:17 ` Dmitry A. Kazakov
2019-04-04 7:22 ` Paul Rubin
2019-04-04 8:37 ` Niklas Holsti
2019-04-05 0:13 ` Randy Brukardt
2019-04-05 5:45 ` Maciej Sobczak
2019-04-05 15:17 ` Optikos
2019-04-06 1:38 ` Jere
2019-04-06 4:25 ` alby.gamper
2019-04-06 6:49 ` Jere
2019-04-06 8:24 ` alby.gamper
2019-04-04 12:28 ` Simon Wright
2019-04-04 16:17 ` Optikos
2019-04-03 15:07 ` Lucretia
2019-04-03 16:15 ` Simon Wright
2019-04-03 17:23 ` Niklas Holsti
2019-04-03 17:48 ` Bill Findlay
2019-04-03 21:01 ` Simon Wright
2019-04-03 18:58 ` Dennis Lee Bieber
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