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Re: Casting the return value of ...

From Tim Rentsch <tr.17687@z991.linuxsc.com>
Newsgroups comp.lang.c
Subject Re: Casting the return value of ...
Date 2024-06-07 21:23 -0700
Organization A noiseless patient Spider
Message-ID <86plsskqp2.fsf@linuxsc.com> (permalink)
References (1 earlier) <20240328105203.773@kylheku.com> <87frwatadu.fsf@nosuchdomain.example.com> <uu4k1c$3pq71$1@dont-email.me> <87bk6yt68v.fsf@nosuchdomain.example.com> <20240328142950.542@kylheku.com>

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Kaz Kylheku <433-929-6894@kylheku.com> writes:

[gcc documentation talks about "forbidden extensions"]

> The misconception is repeated in the GNU Conding Conventions.  It might
> have come from the same person.
>
> https://www.gnu.org/prep/standards/standards.html
>
>     But we do not follow either of these specifications rigidly, and
>     there are specific points on which we decided not to follow them, so
>     as to make the GNU system better for users.
>
>     For instance, Standard C says that nearly all extensions to C are
>     prohibited.  How silly!  GCC implements many extensions, some of which
>     were later adopted as part of the standard.  If you want these
>     constructs to give an error message as ?required?  by the standard,
>     you must specify ?--pedantic?, which was implemented only so that we
>     can say ?GCC is a 100% implementation of the standard?, not because
>     there is any reason to actually use it.
>
> Standard C does not say that any extensions are prohibited.
> How silly to think so, and write about it, and code a facet of the
> compiler diagnostic system that way!

Probably the people who wrote the gcc documentation mean something
different by the word "extension" than the C standard does.  It's
not a good idea to do that, but it does provide a plausible
explanation for why they wrote what they did.

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Thread

Casting the return value of ... gazelle@shell.xmission.com (Kenny McCormack) - 2024-03-28 15:09 +0000
  Re: Casting the return value of ... Kaz Kylheku <433-929-6894@kylheku.com> - 2024-03-28 18:16 +0000
    Re: Casting the return value of ... scott@slp53.sl.home (Scott Lurndal) - 2024-03-28 18:53 +0000
      Re: Casting the return value of ... Tim Rentsch <tr.17687@z991.linuxsc.com> - 2024-03-30 10:33 -0700
        Re: Casting the return value of ... scott@slp53.sl.home (Scott Lurndal) - 2024-03-30 19:29 +0000
          Re: Casting the return value of ... Lawrence D'Oliveiro <ldo@nz.invalid> - 2024-03-30 23:05 +0000
            Re: Casting the return value of ... scott@slp53.sl.home (Scott Lurndal) - 2024-03-30 23:25 +0000
            Re: Casting the return value of ... David Brown <david.brown@hesbynett.no> - 2024-03-31 15:44 +0200
            Re: Casting the return value of ... "Chris M. Thomasson" <chris.m.thomasson.1@gmail.com> - 2024-03-31 13:15 -0700
          Re: Casting the return value of ... Tim Rentsch <tr.17687@z991.linuxsc.com> - 2024-04-08 23:01 -0700
            Re: Casting the return value of ... David Brown <david.brown@hesbynett.no> - 2024-04-09 10:03 +0200
    Re: Casting the return value of ... Keith Thompson <Keith.S.Thompson+u@gmail.com> - 2024-03-28 12:38 -0700
      Re: Casting the return value of ... bart <bc@freeuk.com> - 2024-03-28 20:30 +0000
        Re: Casting the return value of ... Keith Thompson <Keith.S.Thompson+u@gmail.com> - 2024-03-28 14:07 -0700
          Re: Casting the return value of ... "Chris M. Thomasson" <chris.m.thomasson.1@gmail.com> - 2024-03-28 14:15 -0700
          Re: Casting the return value of ... Kaz Kylheku <433-929-6894@kylheku.com> - 2024-03-28 21:44 +0000
            Re: Casting the return value of ... Kaz Kylheku <433-929-6894@kylheku.com> - 2024-03-28 22:01 +0000
              Re: Casting the return value of ... Kaz Kylheku <433-929-6894@kylheku.com> - 2024-03-28 22:33 +0000
                Re: Casting the return value of ... Michael S <already5chosen@yahoo.com> - 2024-03-29 15:53 +0200
                gcc Bugzilla search (was: Casting the return value of ...) Michael S <already5chosen@yahoo.com> - 2024-03-29 16:01 +0200
                Re: gcc Bugzilla search David Brown <david.brown@hesbynett.no> - 2024-03-29 17:00 +0100
            Re: Casting the return value of ... Keith Thompson <Keith.S.Thompson+u@gmail.com> - 2024-03-28 15:37 -0700
            Re: Casting the return value of ... Tim Rentsch <tr.17687@z991.linuxsc.com> - 2024-06-07 21:23 -0700
          Re: Casting the return value of ... David Brown <david.brown@hesbynett.no> - 2024-03-29 14:06 +0100
            Re: Casting the return value of ... "Chris M. Thomasson" <chris.m.thomasson.1@gmail.com> - 2024-03-29 15:46 -0700
        Re: Casting the return value of ... David Brown <david.brown@hesbynett.no> - 2024-03-29 13:58 +0100
          Re: Casting the return value of ... bart <bc@freeuk.com> - 2024-03-29 13:32 +0000
            Re: Casting the return value of ... David Brown <david.brown@hesbynett.no> - 2024-03-29 17:10 +0100
            Re: Casting the return value of ... Tim Rentsch <tr.17687@z991.linuxsc.com> - 2024-03-30 02:32 -0700
              Re: Casting the return value of ... bart <bc@freeuk.com> - 2024-03-30 11:14 +0000
                Re: Casting the return value of ... Tim Rentsch <tr.17687@z991.linuxsc.com> - 2024-04-08 23:41 -0700
  Re: Casting the return value of ... Andrey Tarasevich <andreytarasevich@hotmail.com> - 2024-03-28 21:41 -0700
    Re: Casting the return value of ... Keith Thompson <Keith.S.Thompson+u@gmail.com> - 2024-03-28 22:02 -0700
  Re: Casting the return value of ... Tim Rentsch <tr.17687@z991.linuxsc.com> - 2024-03-29 15:52 -0700

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