Sujet : Re: do { quit; } else { }
De : already5chosen (at) *nospam* yahoo.com (Michael S)
Groupes : comp.lang.cDate : 11. Apr 2025, 16:46:48
Autres entêtes
Organisation : A noiseless patient Spider
Message-ID : <20250411184648.00003bb9@yahoo.com>
References : 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
User-Agent : Claws Mail 4.1.1 (GTK 3.24.34; x86_64-w64-mingw32)
On Fri, 11 Apr 2025 15:24:43 GMT
scott@slp53.sl.home (Scott Lurndal) wrote:
scott@slp53.sl.home (Scott Lurndal) writes:
James Kuyper <jameskuyper@alumni.caltech.edu> writes:
On 4/10/25 18:49, Keith Thompson wrote:
...
Do you have a URL for a PDF C89 Rationale?
>
No, I have it on disk, but I have no idea where I downloaded it
from. As a general rule, I download documents like that after
seeing links to them posted in usenet messages. It's current name
is "C89.pdf", but I probably renamed it from something less
descriptive. Anyone who wants a copy of unknown provenance, let me
know.
>
google sez:
>
http://port70.net/%7Ensz/c/c89/
John Mashey's thread there on 'long long' is intresting, particularly
point 4) weighing LLP64 (Windows) vs LP64 (unix). We had several
discussions during the Large File Summit about 64-bit C data types,
somewhat heated at times - but the existing implementations at the
time were all LP64 which won.
He also touches on a future 64 bit -> 128 bit transition, which is
still as far away now as it was three decades ago :-)
Aug 1995:
"I think I have good reason to believe that 128-bit-integer
machines are 25 years away, i.e., longer than the existence of
C..."
- John Mashey
"|> nightmares. Thus, "long long" is attractive *now*, but will
cause |> problems
|> with 128-bit architectures. 32-bit machines started to arrive
around 1978 |> and 64-bit machines around 1991 (my dates are
approximate). 128-bit |> machines will become available around
2004."
- Frank Farance
Even if Moore's law was still in effect, the time distance between 64
and 128 is still twice longer than between 32 nad 64.
Besides, 32->64 was unusually quick. 4 times smaller 24->32 transition
took about the same time.
Of course, in reality Moore's low is not working for quite some time.
Or, may be, they were thinking about bitness not in terms of # bits in
directly accessible virtual address space?
do { quit; } else { }
Re: do { quit; } else { }