Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]
| From | glen herrmannsfeldt <gah@ugcs.caltech.edu> |
|---|---|
| Newsgroups | comp.lang.c |
| Subject | Re: C Programming Language 2nd Ed, Exercise 1.9 and 1.12, Solution suggestion. |
| Date | 2014-06-10 00:17 +0000 |
| Organization | Aioe.org NNTP Server |
| Message-ID | <ln5iq5$1n9$1@speranza.aioe.org> (permalink) |
| References | <7128848c-179a-44d1-b2a8-cf8163bf6d2c@googlegroups.com> <C-20140609212332@ram.dialup.fu-berlin.de> <lnioo9n7gz.fsf@nuthaus.mib.org> <ln58jv$b7s$1@speranza.aioe.org> <20140609143511.131@kylheku.com> |
Kaz Kylheku <kaz@kylheku.com> wrote:
(snip, I wrote)
>> Since C's main is supposed to have arguments (usually argc and argv)
>> but it is usual not to put them in if I am not using them, I prefer
>> the () form, with the (void) form when there are never any arguments.
(snip)
> "I abandoned the use of void as an argument type meaning
> "no arguments" after Dennis Ritchie and Doug McIlroy strongly
> condemned it as "an abomination." Instead, I adopted the obvious
> notation for taking no arguments, an empty pair of parentheses."
> ["Sibling Rivalry: C and C++", 2.4, Stroustrup,
> http://www.stroustrup.com/sibling_rivalry.pdf ]
(snip)
> C++ later came to support, but not required (void) in order
> to be compatible with ANSI C, which adopted this convention.
(snip, I also wrote)
>> To allow for varargs, most calling conventions used with C allow
>> for fewer arguments.
> varargs is historic; nobody should care about about that any more.
> Aldo, the type looseness in C came first, then the varargs hack!
It is all intel's fault. All the calling conventions that I knew
before the 8086 ignored extra arguments.
The 8086 has a RET n instruction that will pop bytes off the
stack at the same time as returning. Saves one instruction
(per call) and a few cycles. It worked fine with the Pascal and
Fortran compilers that were used early in the 8086 MSDOS years.
But it only works when you are sure you know how many arguments
there are.
> That is to say, I don't suspect C was designed specifically to allow
> things like that ("let's not have declarations of arguments so there
> can be a mismatch"); coe like that just worked.
As well as I know it, ANSI C allows a different calling convention
for functions that never have variable argument lists, maybe
even STDCALL, but no-one does that. Much better to have the caller
pop the arguments.
-- glen
Back to comp.lang.c | Previous | Next — Previous in thread | Next in thread | Find similar | Unroll thread
C Programming Language 2nd Ed, Exercise 1.9 and 1.12, Solution suggestion. Christos Kokaliaris <chrisk.msor@gmail.com> - 2014-06-09 12:12 -0700
Re: C Programming Language 2nd Ed, Exercise 1.9 and 1.12, Solution suggestion. Christos Kokaliaris <chrisk.msor@gmail.com> - 2014-06-09 12:41 -0700
Re: C Programming Language 2nd Ed, Exercise 1.9 and 1.12, Solution suggestion. Barry Schwarz <schwarzb@dqel.com> - 2014-06-09 13:16 -0700
Re: C Programming Language 2nd Ed, Exercise 1.9 and 1.12, Solution suggestion. Tim Rentsch <txr@alumni.caltech.edu> - 2014-06-12 09:08 -0700
Re: C Programming Language 2nd Ed, Exercise 1.9 and 1.12, Solution suggestion. raltbos@xs4all.nl (Richard Bos) - 2014-06-12 16:35 +0000
Re: C Programming Language 2nd Ed, Exercise 1.9 and 1.12, Solution suggestion. Tim Rentsch <txr@alumni.caltech.edu> - 2014-06-13 07:27 -0700
Re: C Programming Language 2nd Ed, Exercise 1.9 and 1.12, Solution suggestion. Jorgen Grahn <grahn+nntp@snipabacken.se> - 2014-06-14 00:13 +0000
Re: C Programming Language 2nd Ed, Exercise 1.9 and 1.12, Solution suggestion. Tim Rentsch <txr@alumni.caltech.edu> - 2014-06-16 07:07 -0700
Re: C Programming Language 2nd Ed, Exercise 1.9 and 1.12, Solution suggestion. Jorgen Grahn <grahn+nntp@snipabacken.se> - 2014-06-16 20:04 +0000
Re: C Programming Language 2nd Ed, Exercise 1.9 and 1.12, Solution suggestion. Tim Rentsch <txr@alumni.caltech.edu> - 2014-06-17 08:56 -0700
Re: C Programming Language 2nd Ed, Exercise 1.9 and 1.12, Solution suggestion. raltbos@xs4all.nl (Richard Bos) - 2014-06-16 12:53 +0000
Re: C Programming Language 2nd Ed, Exercise 1.9 and 1.12, Solution suggestion. Tim Rentsch <txr@alumni.caltech.edu> - 2014-06-16 08:00 -0700
Re: C Programming Language 2nd Ed, Exercise 1.9 and 1.12, Solution suggestion. Kaz Kylheku <kaz@kylheku.com> - 2014-06-16 16:01 +0000
Re: C Programming Language 2nd Ed, Exercise 1.9 and 1.12, Solution suggestion. Tim Rentsch <txr@alumni.caltech.edu> - 2014-06-17 08:24 -0700
Re: C Programming Language 2nd Ed, Exercise 1.9 and 1.12, Solution suggestion. raltbos@xs4all.nl (Richard Bos) - 2014-06-18 10:50 +0000
Re: C Programming Language 2nd Ed, Exercise 1.9 and 1.12, Solution suggestion. Tim Rentsch <txr@alumni.caltech.edu> - 2014-06-26 19:07 -0700
Re: C Programming Language 2nd Ed, Exercise 1.9 and 1.12, Solution suggestion. Kaz Kylheku <kaz@kylheku.com> - 2014-06-09 19:51 +0000
Re: C Programming Language 2nd Ed, Exercise 1.9 and 1.12, Solution suggestion. Jorgen Grahn <grahn+nntp@snipabacken.se> - 2014-06-09 20:15 +0000
Re: C Programming Language 2nd Ed, Exercise 1.9 and 1.12, Solution suggestion. Christos Kokaliaris <chrisk.msor@gmail.com> - 2014-06-09 13:21 -0700
Re: C Programming Language 2nd Ed, Exercise 1.9 and 1.12, Solution suggestion. Keith Thompson <kst-u@mib.org> - 2014-06-09 13:39 -0700
Re: C Programming Language 2nd Ed, Exercise 1.9 and 1.12, Solution suggestion. glen herrmannsfeldt <gah@ugcs.caltech.edu> - 2014-06-09 21:23 +0000
Re: C Programming Language 2nd Ed, Exercise 1.9 and 1.12, Solution suggestion. Kaz Kylheku <kaz@kylheku.com> - 2014-06-09 21:43 +0000
Re: C Programming Language 2nd Ed, Exercise 1.9 and 1.12, Solution suggestion. glen herrmannsfeldt <gah@ugcs.caltech.edu> - 2014-06-10 00:17 +0000
Re: C Programming Language 2nd Ed, Exercise 1.9 and 1.12, Solution suggestion. "BartC" <bc@freeuk.com> - 2014-06-10 11:13 +0100
Re: C Programming Language 2nd Ed, Exercise 1.9 and 1.12, Solution suggestion. Keith Thompson <kst-u@mib.org> - 2014-06-10 07:38 -0700
Re: C Programming Language 2nd Ed, Exercise 1.9 and 1.12, Solution suggestion. raltbos@xs4all.nl (Richard Bos) - 2014-06-10 10:23 +0000
Re: C Programming Language 2nd Ed, Exercise 1.9 and 1.12, Solution suggestion. Dr Nick <nospam-4@temporary-address.org.uk> - 2014-06-10 18:55 +0100
Re: C Programming Language 2nd Ed, Exercise 1.9 and 1.12, Solution suggestion. Keith Thompson <kst-u@mib.org> - 2014-06-09 15:14 -0700
Re: C Programming Language 2nd Ed, Exercise 1.9 and 1.12, Solution suggestion. glen herrmannsfeldt <gah@ugcs.caltech.edu> - 2014-06-10 00:21 +0000
Re: C Programming Language 2nd Ed, Exercise 1.9 and 1.12, Solution suggestion. James Kuyper <jameskuyper@verizon.net> - 2014-06-09 21:37 -0400
Re: C Programming Language 2nd Ed, Exercise 1.9 and 1.12, Solution suggestion. Keith Thompson <kst-u@mib.org> - 2014-06-10 07:45 -0700
Re: C Programming Language 2nd Ed, Exercise 1.9 and 1.12, Solution suggestion. Tim Rentsch <txr@alumni.caltech.edu> - 2014-06-11 01:32 -0700
Re: C Programming Language 2nd Ed, Exercise 1.9 and 1.12, Solution suggestion. Cal Dershowitz <Cal@example.invalid> - 2014-06-09 23:14 -0700
Re: C Programming Language 2nd Ed, Exercise 1.9 and 1.12, Solution suggestion. raltbos@xs4all.nl (Richard Bos) - 2014-06-10 10:14 +0000
Re: C Programming Language 2nd Ed, Exercise 1.9 and 1.12, Solution suggestion. Phil Carmody <thefatphil_demunged@yahoo.co.uk> - 2014-06-10 22:06 +0300
Re: C Programming Language 2nd Ed, Exercise 1.9 and 1.12, Solution suggestion. raltbos@xs4all.nl (Richard Bos) - 2014-06-11 16:16 +0000
Re: C Programming Language 2nd Ed, Exercise 1.9 and 1.12, Solution suggestion. Kaz Kylheku <kaz@kylheku.com> - 2014-06-11 16:47 +0000
Re: C Programming Language 2nd Ed, Exercise 1.9 and 1.12, Solution suggestion. Phil Carmody <thefatphil_demunged@yahoo.co.uk> - 2014-06-11 20:50 +0300
Re: C Programming Language 2nd Ed, Exercise 1.9 and 1.12, Solution suggestion. raltbos@xs4all.nl (Richard Bos) - 2014-06-11 16:16 +0000
Re: C Programming Language 2nd Ed, Exercise 1.9 and 1.12, Solution suggestion. Joe Pfeiffer <pfeiffer@cs.nmsu.edu> - 2014-06-10 08:23 -0600
Re: C Programming Language 2nd Ed, Exercise 1.9 and 1.12, Solution suggestion. Keith Thompson <kst-u@mib.org> - 2014-06-10 10:12 -0700
Re: C Programming Language 2nd Ed, Exercise 1.9 and 1.12, Solution suggestion. Tim Rentsch <txr@alumni.caltech.edu> - 2014-06-12 08:39 -0700
Re: C Programming Language 2nd Ed, Exercise 1.9 and 1.12, Solution suggestion. Robert Wessel <robertwessel2@yahoo.com> - 2014-06-12 12:30 -0500
Re: C Programming Language 2nd Ed, Exercise 1.9 and 1.12, Solution suggestion. Seungbeom Kim <musiphil@bawi.org> - 2014-06-10 23:34 -0700
Re: C Programming Language 2nd Ed, Exercise 1.9 and 1.12, Solution suggestion. Tim Rentsch <txr@alumni.caltech.edu> - 2014-06-11 00:35 -0700
Re: C Programming Language 2nd Ed, Exercise 1.9 and 1.12, Solution suggestion. Keith Thompson <kst-u@mib.org> - 2014-06-11 08:35 -0700
Re: C Programming Language 2nd Ed, Exercise 1.9 and 1.12, Solution suggestion. Kaz Kylheku <kaz@kylheku.com> - 2014-06-11 15:49 +0000
csiph-web