10 Mar
2023
10 Mar
'23
2:08 a.m.
On Thu, Mar 9, 2023, 5:55 PM segaloco <segaloco(a)protonmail.com> wrote:
I guess I hadn't considered deeply nested loops.
I contort myself into a
mental pretzel figuring out how to avoid GOTOs sometimes, maybe I could
stand to embrace one every once in a while myself...
Yea. I recall a proposal to add break label; and the label could only be at
the end of a loop. The objection was why bloat the compiler with another
goto... I developed my restricted lack of fear after a stint in Java with
its multilevel break...
Warner
Now doing some research, more languages support GOTO than I thought,
including C#, PHP, even Rust for all its safety
orientation appears to at
least muster a GOTO-ish construct. If people keep doing it, it must still
be wanted, needed, and useful. I stand corrected on my never-GOTO attitude.
Now to slip a GOTO into a work project and see how long it takes to get
chastised :)
- Matt G.
------- Original Message -------
On Thursday, March 9th, 2023 at 3:54 PM, Warner Losh <imp(a)bsdimp.com>
wrote:
Oh also sometimes for breaking out of multiple levels of while/for loops.
The alternatives are often worse.
Warner
On Thu, Mar 9, 2023, 4:31 PM Luther Johnson <luther(a)makerlisp.com> wrote:
I agree, unless I use setjmp/longjmp for that.
Besides error recovery,
there are occasionally other times when we want to locally "return" to a
common state and start "from the top" again. I find such uses very clear in
their intent, and if commented well, not hard to follow at all - as long as
there is not more than one "top" :)
On 03/09/2023 04:21 PM, Warner Losh wrote:
On Thu, Mar 9, 2023, 4:18 PM segaloco via TUHS <tuhs(a)tuhs.org> wrote:
GOTO is one of those paradoxical things where I
would only trust the
most sophisticated engineer to know when it's acceptable to use a GOTO but
on the flip side would be suspicious of anyone claiming to be an engineer
that uses any amount of GOTOs...
Were any of the various GOTOs in languages ever meant to be any more
than providing the same level of control that branch statements in assembly
do? Was there ever some vision anyone's aware of concerning a
sophisticated, dependable use of GOTOs? Since my first days poking around
learning C GOTO has been mentally filed away as an assembly vestige for
folks in transition, not a dependable construct in its own right. Any
alternative camps out there?
In C I use it all the time to do goto err for common error recovery
because C doesn't have anything better.
Warner
- Matt G.
------- Original Message -------
On Thursday, March 9th, 2023 at 3:01 PM, Steffen Nurpmeso <
steffen(a)sdaoden.eu> wrote:
I wonder if Pink Floyd's Summer68 maybe
refers to this.
Other than that i am addicted and could not live without it.
The other (terrible) song is from 1984 (east southern US).
--steffen
|
|Der Kragenbaer, The moon bear,
|der holt sich munter he cheerfully and one by one
|einen nach dem anderen runter wa.ks himself off
|(By Robert Gernhardt)