25 Apr
2020
25 Apr
'20
7:17 p.m.
On Fri, Apr 24, 2020 at 11:31 PM Clem Cole <clemc(a)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(a)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:
--
Sent from a handheld expect more typos than usual
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(a)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(a)gmail.com>
> wrote:
>
>>
>>
>> On Apr 24, 2020, at 7:37 PM, Charles Anthony <
charles.unix.pro(a)gmail.com>
>> wrote:
>>
>>
>>
>> On Fri, Apr 24, 2020 at 7:00 PM Adam Thornton <athornton(a)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