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Re: C Programming Language 2nd Ed, Exercise 1.9 and 1.12, Solution suggestion.

From Kaz Kylheku <kaz@kylheku.com>
Newsgroups comp.lang.c
Subject Re: C Programming Language 2nd Ed, Exercise 1.9 and 1.12, Solution suggestion.
Date 2014-06-11 15:49 +0000
Organization Aioe.org NNTP Server
Message-ID <20140611084537.236@kylheku.com> (permalink)
References (2 earlier) <lnioo9n7gz.fsf@nuthaus.mib.org> <ln58jv$b7s$1@speranza.aioe.org> <lna99ln32t.fsf@nuthaus.mib.org> <ln8t99$1l1$1@usenet.stanford.edu> <lnsinblarr.fsf@nuthaus.mib.org>

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On 2014-06-11, Keith Thompson <kst-u@mib.org> wrote:
> Seungbeom Kim <musiphil@bawi.org> writes:
>> On 2014-06-09 15:14, Keith Thompson wrote:
>>> The () form in a declaration says that the function takes a fixed but
>>> unspecified number and type(s) of arguments.  In a definition, it says
>>> that the function has no parameters, but it still provides a declaration
>>> with the above meaning.
>>
>> Can you explain what you mean by the second sentence above?
>> If it says that the function has no parameters, doesn't it constitute a
>> declaration that says the same thing? If there exists something that says
>> a function has no parameters but that is not a declaration, what is it?
>>
>> The only relevant part I could find in the standard was N1570:6.7.6.3/14:
>> "An empty list in a function declarator that is part of a definition
>> of that function specifies that the function has no parameters", but
>> it doesn't seem to imply that it still provides a declaration that
>> allows anything but no parameters.
>
> Strange as it seems, the empty parentheses in
>
>     void foo() { /* ... */ }
>
> specify that foo has no parameters, but they don't specify that it takes
> no arguments.

What? No.

It defines a function entity with no parameters, which consequently takes no
arguments.

But the name foo is not *declared* as such: not to the scope within the
braces, nor the subsequent portion of the file scope.

These regions of the program are only informed about the existence of
the name foo which refers to a function.

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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

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