From: Dan Cross <crossd@gmail.com>
To: Clem Cole <clemc@ccc.com>
Cc: The Eunuchs Hysterical Society <tuhs@tuhs.org>, ak@akkartik.com
Subject: Re: [TUHS] v7 K&R C
Date: Sat, 25 Apr 2020 09:17:55 -0400 [thread overview]
Message-ID: <CAEoi9W5s7no_t=LJ5Crc+4juEMzNir=-RLEGFjZkELbt=tkhWA@mail.gmail.com> (raw)
In-Reply-To: <CAC20D2Nj204+EsOye_R-sVX-m6VT4QYNFR46fEqgBZJLSqVdPw@mail.gmail.com>
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On Fri, Apr 24, 2020 at 11:31 PM Clem Cole <clemc@ccc.com> wrote:
> Amen bro. I always felt that they got added because pascal had something
> that C didn’t, and yet it really was not the same. I always felt they were
> a feature that was only partly implemented and if they were not going to
> be fully typed then just leave them out and use cpp like we had always done
> before.
>
Aww shucks; I actually kinda like enums. When creating sequentially
numbered constants, they're convenient.
That said, the typing issues I have a lot of sympathy for. For true
constants, it's a shame that `const` didn't make it in earlier, though we
have it now. Abusing enum to define constants certainly feels like, well,
abuse.
- Dan C.
On Fri, Apr 24, 2020 at 11:05 PM Larry McVoy <lm@mcvoy.com> wrote:
>
>> I hate enums. I thought they would be type checked and they are just
>> ints.
>> I love C but enums suck.
>>
>> On Sat, Apr 25, 2020 at 12:54:27PM +1000, Rob Pike wrote:
>> > Another debate at the time was caused by a disagreement between pcc and
>> cc
>> > regarding enums: are they a type or just a way to declare constant? I
>> > remember getting annoyed by pcc not letting me declare a constant with
>> an
>> > enum and use it as an int. I protested to scj and dmr and after some
>> to-ing
>> > and fro-ing Steve changed pcc to treat them as constants.
>> >
>> > Not sure it was the right decision, but C desperately wanted a non-macro
>> > way to define a constant. I'd probably argue the same way today. The
>> real
>> > lesson is how propinquity affects progress.
>> >
>> > -rbo
>> >
>> >
>> > On Sat, Apr 25, 2020 at 12:51 PM Rob Pike <robpike@gmail.com> wrote:
>> >
>> > > The ability to call a function pointer fp with the syntax fp() rather
>> than
>> > > (*fp)() came rather late, I think at Bjarne's suggestion or example.
>> Pretty
>> > > sure it was not in v7 C, as you observe.
>> > >
>> > > Convenient though the shorthand may be, it always bothered me as
>> > > inconsistent and misleading. (I am pretty sure I used it sometimes
>> > > regardless.)
>> > >
>> > > -rob
>> > >
>> > >
>> > > On Sat, Apr 25, 2020 at 12:48 PM Adam Thornton <athornton@gmail.com>
>> > > wrote:
>> > >
>> > >>
>> > >>
>> > >> On Apr 24, 2020, at 7:37 PM, Charles Anthony <
>> charles.unix.pro@gmail.com>
>> > >> wrote:
>> > >>
>> > >>
>> > >>
>> > >> On Fri, Apr 24, 2020 at 7:00 PM Adam Thornton <athornton@gmail.com>
>> > >> wrote:
>> > >>
>> > >>> This doesn???t like the function pointer.
>> > >>>
>> > >>
>> > >>> $ cc -c choparg.c
>> > >>> choparg.c:11: Call of non-function
>> > >>>
>> > >>> Perhaps:
>> > >>
>> > >> (*fcn)(arg);
>> > >>
>> > >>
>> > >> We have a winner!
>> > >>
>> > >> Also, Kartik, dunno where it is on the net, but if you install a v7
>> > >> system, /usr/src/cmd/c
>> > >>
>> > >> Adam
>> > >>
>> > >>
>>
>> --
>> ---
>> Larry McVoy lm at mcvoy.com
>> http://www.mcvoy.com/lm
>>
> --
> Sent from a handheld expect more typos than usual
>
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next prev parent reply other threads:[~2020-04-25 13:19 UTC|newest]
Thread overview: 153+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-04-25 1:59 Adam Thornton
2020-04-25 2:37 ` Charles Anthony
2020-04-25 2:47 ` Adam Thornton
2020-04-25 2:51 ` Rob Pike
2020-04-25 2:54 ` Rob Pike
2020-04-25 3:04 ` Larry McVoy
2020-04-25 3:30 ` Clem Cole
2020-04-25 3:43 ` Larry McVoy
2020-04-25 3:54 ` Jon Steinhart
2020-04-25 11:44 ` Michael Kjörling
2020-04-25 13:17 ` Dan Cross [this message]
2020-05-11 0:28 ` scj
2020-05-11 0:32 ` Rob Pike
2020-05-11 0:57 ` Larry McVoy
2020-05-11 17:32 ` Greg A. Woods
2020-05-11 18:25 ` Paul Winalski
2020-05-11 18:37 ` Clem Cole
2020-05-11 19:12 ` Paul Winalski
2020-05-11 19:57 ` joe mcguckin
2020-05-11 20:25 ` Larry McVoy
2020-05-12 17:23 ` Paul Winalski
2020-05-12 17:35 ` ron
2020-05-12 17:42 ` Larry McVoy
2020-05-12 18:36 ` Paul Winalski
2020-05-13 23:36 ` Dave Horsfall
2020-05-14 0:42 ` John P. Linderman
2020-05-14 2:44 ` Rich Morin
2020-05-14 3:09 ` Charles Anthony
2020-05-14 12:27 ` ron
2020-05-14 12:27 ` ron
2020-05-14 12:27 ` ron
2020-05-14 7:38 ` Dave Horsfall
2020-05-14 12:25 ` ron
2020-05-14 17:13 ` Paul Winalski
2020-05-14 17:21 ` Larry McVoy
2020-05-17 16:34 ` Derek Fawcus
2020-05-14 4:21 ` Greg A. Woods
2020-05-14 4:40 ` Warner Losh
2020-05-14 17:32 ` Larry McVoy
2020-05-14 22:32 ` Tony Finch
2020-05-16 23:53 ` Steffen Nurpmeso
2020-05-16 23:59 ` [TUHS] v7 K&R C [really lexers] Jon Steinhart
2020-05-17 0:04 ` Brantley Coile
2020-05-17 1:23 ` Warner Losh
2020-05-17 1:36 ` Brantley Coile
2020-06-13 21:24 ` scj
2020-06-14 8:47 ` arnold
2020-06-14 12:52 ` Richard Salz
2020-06-14 14:03 ` Ralph Corderoy
2020-06-14 14:26 ` arnold
2020-06-14 14:48 ` Ralph Corderoy
2020-06-15 1:12 ` Warren Toomey
2020-06-15 1:29 ` Warren Toomey
2020-06-15 6:06 ` arnold
2020-05-17 16:31 ` Paul Winalski
2020-05-17 0:35 ` [TUHS] v7 K&R C Larry McVoy
2020-05-11 18:37 ` Larry McVoy
2020-05-11 2:08 ` Lawrence Stewart
2020-05-11 11:36 ` Michael Kjörling
2020-04-25 3:37 ` Dave Horsfall
2020-04-27 13:19 ` Tony Finch
2020-04-25 2:50 ` Adam Thornton
2020-04-25 5:59 ` Lars Brinkhoff
2020-04-25 13:11 Noel Chiappa
2020-04-25 13:18 ` Rob Pike
2020-04-25 14:57 ` Warner Losh
2020-04-25 18:03 ` Noel Chiappa
2020-04-25 20:11 ` Michael Kjörling
2020-04-25 21:27 ` Brian L. Stuart
2020-04-26 0:07 ` emanuel stiebler
2020-04-26 0:54 ` Rob Pike
2020-04-26 19:37 ` Derek Fawcus
2020-04-26 20:10 ` Derek Fawcus
2020-04-26 21:59 ` Rich Morin
2020-04-26 22:38 ` Noel Hunt
2020-04-26 23:57 ` Nemo Nusquam
2020-04-27 3:38 ` Rob Pike
2020-04-25 13:35 ` Hellwig Geisse
2020-04-25 13:59 ` Richard Salz
2020-04-25 19:01 ` Brian L. Stuart
2020-04-25 20:07 ` Michael Kjörling
2020-04-25 21:34 ` Brian L. Stuart
2020-04-26 6:40 ` arnold
2020-04-25 19:41 Noel Chiappa
2020-04-25 20:27 ` Steffen Nurpmeso
2020-04-27 17:45 Noel Chiappa
2020-04-27 17:56 ` Richard Salz
2020-04-27 18:02 ` Brantley Coile
2020-04-27 18:47 ` Derek Fawcus
[not found] <mailman.1.1589421601.13778.tuhs@minnie.tuhs.org>
2020-05-14 3:02 ` Paul McJones
2020-05-14 17:08 ` Paul Winalski
2020-05-14 17:58 ` Clem Cole
2020-05-14 18:41 Doug McIlroy
2020-05-14 18:45 ` Richard Salz
2020-05-14 20:54 ` Clem Cole
2020-05-15 2:44 ` Rob Pike
2020-05-15 3:57 ` Rich Morin
2020-05-15 7:55 ` Dr Iain Maoileoin
2020-05-15 15:01 ` Larry McVoy
2020-05-15 15:36 ` John P. Linderman
2020-05-15 20:01 ` ron
2020-05-15 20:03 ` Larry McVoy
2020-05-15 20:05 ` Clem Cole
2020-05-15 20:18 ` ron
2020-05-15 20:24 ` Clem Cole
2020-05-16 0:57 ` Brantley Coile
2020-05-16 16:14 ` Dan Cross
2020-05-15 20:56 ` Steve Nickolas
2020-05-16 0:31 ` Peter Jeremy
2020-05-16 8:30 ` Steve Nickolas
2020-05-16 0:43 ` John P. Linderman
2020-05-16 16:28 ` Paul Winalski
2020-05-16 17:39 ` Warner Losh
2020-05-19 19:45 ` Peter Pentchev
2020-05-20 3:52 ` Rich Morin
2020-05-21 15:06 ` Dave Horsfall
2020-05-15 20:34 Doug McIlroy
2020-05-15 20:40 ` Warner Losh
2020-05-15 21:31 Richard Tobin
2020-05-15 21:53 ` Steve Nickolas
2020-05-15 22:33 ` ron
2020-05-15 23:34 ` Steffen Nurpmeso
2020-05-16 1:26 ` Larry McVoy
2020-05-16 21:59 ` Ronald Natalie
2020-05-16 23:26 ` Steffen Nurpmeso
2020-05-17 16:24 ` Paul Winalski
2020-05-17 16:29 ` ron
2020-05-17 16:38 ` Paul Winalski
2020-05-17 20:08 ` Clem Cole
2020-05-18 8:46 ` Peter Jeremy
2020-05-19 7:41 ` Dave Horsfall
2020-05-18 12:04 ` Tony Finch
2020-05-18 13:10 ` Clem Cole
2020-05-18 15:13 ` Rich Morin
2020-05-18 15:51 ` Brantley Coile
2020-05-18 16:11 ` Dan Cross
2020-05-18 21:18 ` ron
2020-05-17 16:10 ` Derek Fawcus
2020-05-17 16:14 ` ron
2020-05-16 0:15 Nelson H. F. Beebe
2020-05-16 0:28 ` Steffen Nurpmeso
2020-05-16 1:52 ` Warner Losh
2020-05-16 16:31 ` Paul Winalski
2020-05-16 20:35 ` Brad Spencer
2020-05-16 20:37 ` Warner Losh
2020-05-18 12:25 ` Tony Finch
2020-05-16 18:45 Richard Tobin
2020-05-16 21:55 ` Ronald Natalie
2020-05-18 13:58 Doug McIlroy
2020-05-18 14:33 Doug McIlroy
2020-05-19 2:29 Doug McIlroy
2020-05-19 3:20 ` Steve Nickolas
2020-05-19 12:29 Noel Chiappa
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