I actually always liked C, maybe because its original simplicity
reminded me of Assembler. I mean, what other language can you goof up a
length value or pointer and overwrite a bunch of other data areas by
mistake? Oh yeah, Assembler!
On 4/2/2023 9:29 PM, Clem Clarke wrote:
In my mind, Gary
Comments inline (reply) below (without leading >; I don't seem to have that
feature available).
From: IBM Mainframe Discussion List on behalf of
Paul Gilmartin <042bfe9c879d-dmarc-requ...@listserv.ua.edu>
Sent: Sunday, April 2, 2023 5:32 PM
To:
In my mind, Gary Kildall was a genius. Not only for his operating
systems, but he also had PL/I running on PCs when everyone else said it
was impossible. Now, we are stuck with "C".
Also, Kildall had a GUI called GEM out years before Windows.
Unfortunately, the same man that effectively
On Mon, 3 Apr 2023 01:48:31 +0200, Bernd Oppolzer wrote:
>>
>C only supports call by value;
>if you want other things like call by reference or "call by content", as
>defined by COBOL,
>you have do simulate them by passing pointers by value explicitly
>(and in the case of call by content, by
Growing up in the 50's people could only fantasise about billions and
millions. These numbers just seemed far far from reality.
A good friend of mine boasted to me that his Dad was "a thousandaire". I
was impressed.
On Sun, Apr 2, 2023 at 10:35 PM Rupert Reynolds wrote:
> Oh yes. Only slightly
Now I'll try an answer to the other question(s), see below ...
Am 03.04.2023 um 01:32 schrieb Paul Gilmartin:
Are the external semantics (not examining the generated assembly) of
"pass by content" any different from "pass by value"? How?
maybe not
It would seem more efficient for the
Am 03.04.2023 um 00:37 schrieb Frank Swarbrick:
Something to note, and it's not supported by C as far as I am aware, is neither of these are
"pass by content". Pass by content is "pass address of a copy of the field".
So a copy is done, as with fun2, but the parameter list pointed to by R1
I will try to answer one of your questions, see below ... kind regards /
Bernd
Am 03.04.2023 um 01:32 schrieb Paul Gilmartin:
On Sun, 2 Apr 2023 22:37:53 +, Frank Swarbrick wrote:
I'm just going to put this out there... Dingus has an online test C compiler,
which outputs the generated
On Sun, 2 Apr 2023 22:37:53 +, Frank Swarbrick wrote:
>I'm just going to put this out there... Dingus has an online test C compiler,
>which outputs the generated assembler. You can find it at
>http://www.dignus.com/dcc/compileit.html.
>
Thanks.
>I ran the following program through it.
>
I'm just going to put this out there... Dingus has an online test C compiler,
which outputs the generated assembler. You can find it at
http://www.dignus.com/dcc/compileit.html.
I ran the following program through it.
#include
typedef struct tester {
char c;
int i;
Whenever I get an error I try to dump the relevant data. SDUMP gives the
whole 9 yards a lot of which I don't need in addition I like looking at the
data ISPF Browse rather than IPCS
SNAPX you must supply a DCB SDUMPX you enter a DCB only if you want
(optionally)
The DCB info for SNAPX is
I understand.
I just re-read the comments next to SDWASRSV while SDWASRGSV Is regs at time
of error for ESTAE for an FRR it SDWASR00 anyway I use a register update
block
thanks
-Original Message-
From: IBM Mainframe Discussion List On Behalf Of
Peter Relson
Sent: Sunday, April 2,
I don't know enough COBOL to contribute much more on that score. But I can
now recall some of the COBOL programmer's words, "ALTER GOTO is the only
sensible support for structured programming" which sounds like an eccentric
view, if not actually mad :-)
He was clearly good at his job, though, and
It just came to my mind that for C programmers I have to add the
following remark:
it is not easy to pass arrays (vectors) by value in C, in contrast to -
for example - Pascal.
Because in C the name of a vector is equivalent to the address of the
element of its element zero,
this means that,
"people were using" is not the same as "the language only has". There are far
too many people who treat software as static, and only use what they learned
initially.
I, OTOH, am OCD about what has changed in the software that I am using. It's
amazing who many times someone tells me that, e.g.,
Am 02.04.2023 um 16:29 schrieb Seymour J Metz:
Regardless of the implementation, call by reference is about more than
efficiency; sometimes a subroutine is required to alter one of its parameters,
and call by value doesn't allow that.
That's well known;
most C textbooks tell that call by
Regardless of the implementation, call by reference is about more than
efficiency; sometimes a subroutine is required to alter one of its parameters,
and call by value doesn't allow that.
--
Shmuel (Seymour J.) Metz
http://mason.gmu.edu/~smetz3
From:
The registers in the SDWA related to RB or linkage stack entry are not time of
error. There are many rules involved with when those registers are saved.
If you want registers for retry, then you should save them in a work area that
you can locate via the ESTAE parameter or the FRR parameter
Oh yes. Only slightly ambiguous when the speaker had alergies and a blocked
nose :-)
Roops
On Sun, 2 Apr 2023, 11:18 Lennie Dymoke-Bradshaw, <
032fff1be9b4-dmarc-requ...@listserv.ua.edu> wrote:
> We used to have the Milliard as well.
> https://www.dictionary.com/browse/milliard
>
> Lennie
>
We used to have the Milliard as well.
https://www.dictionary.com/browse/milliard
Lennie
-Original Message-
From: IBM Mainframe Discussion List On Behalf Of
Rupert Reynolds
Sent: 02 April 2023 04:05
To: IBM-MAIN@LISTSERV.UA.EDU
Subject: Re: Subject: Re: Currency format suggestions,
Does this mean that,
in the cases where the argument fits within the width of the parameter
list,
PL/X passes the actual value somehow? (which IMO means: the value goes
into the parameter list).
Or does it also in these cases only rely to the interface definition
(and calls by reference)?
21 matches
Mail list logo
