Re: C Names and Scopes

From	Ben Bacarisse <ben.usenet@bsb.me.uk>
Newsgroups	comp.lang.c
Subject	Re: C Names and Scopes
Date	2017-02-10 23:48 +0000
Organization	A noiseless patient Spider
Message-ID	<87mvdtzjy6.fsf@bsb.me.uk> (permalink)
References	(4 earlier) <o7j18r$i8r$1@dont-email.me> <8737fm6flc.fsf@bsb.me.uk> <o7j3el$o0c$1@dont-email.me> <87r3364xy6.fsf@bsb.me.uk> <o7kbnp$1d8$1@dont-email.me>

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BartC <bc@freeuk.com> writes:

> On 10/02/2017 01:49, Ben Bacarisse wrote:
>> BartC <bc@freeuk.com> writes:
>
>> Your complaint, phrased slightly sarcastically, was explicitly about gcc
>> both times.
>
> That's supposed to be the best.

You cut the context.  Here, let me put it back:

||| ... this just looks like another excuse to moan about gcc.
||
|| I'm not partisan.
|
| Your complaint, phrased slightly sarcastically, was explicitly about gcc
| both times.

>>  -pedantic-errors
>>
>> Does that not do what you want?
>
> I will try it. (But it also reports things such as 'string longer than
> 4095 characters.

Why would you not want to know about that?  You appear to want to know
what you can and can not rely on when writing C.  To investigate what is
valid C you need to know about this sort of thing.

> It also fails some of my own programs which currently
> work. If it means extra work to get my own C code to compile, I may
> have to relax my ideas of what constitutes an error!)

Your original complaint was about overly lax compilers that let too much
through meaning you did not know what C really permitted and what it did
not.  This was in the context of learning about the language so you can
implement it.  I was not suggesting you'd use this flag on your own
code.  What sort of code you want to *write* (as opposed to the code
your compiler should accept) is another matter altogether.

>> I can't evaluate it because, while it should report all syntax errors,
>> I'm not sure what else you consider "hard" or whether you consider
>> something "harmless" that it will turn into an error.
>
> I consider syntax errors 'hard' (notice the word 'error' in 'syntax
> error'; you don't often hear about syntax warnings!).

The word *else* clearly means I know you consider syntax errors to be
hard errors.  It's the others I am claiming to be unsure about.  But
please note: I'm not asking to know.  I simply stating that I can't say
if -pedantic-errors will do what you want.  If it doesn't, I think you
are out of luck as far as gcc is concerned.

<snip>
-- 
Ben.

Thread

C Names and Scopes BartC <bc@freeuk.com> - 2017-02-08 02:13 +0000
  Re: C Names and Scopes David Brown <david.brown@hesbynett.no> - 2017-02-08 10:09 +0100
    Re: C Names and Scopes mark.bluemel@gmail.com - 2017-02-08 02:37 -0800
      Re: C Names and Scopes BartC <bc@freeuk.com> - 2017-02-08 11:07 +0000
        Re: C Names and Scopes fir <profesor.fir@gmail.com> - 2017-02-08 09:03 -0800
          Re: C Names and Scopes BartC <bc@freeuk.com> - 2017-02-08 17:19 +0000
            Re: C Names and Scopes fir <profesor.fir@gmail.com> - 2017-02-08 09:42 -0800
      Re: C Names and Scopes David Brown <david.brown@hesbynett.no> - 2017-02-08 12:08 +0100
    Re: C Names and Scopes Moai <penultimategrill@gmail.com> - 2017-02-08 19:16 -0500
      Re: C Names and Scopes David Brown <david.brown@hesbynett.no> - 2017-02-09 01:32 +0100
      Re: C Names and Scopes Tim Rentsch <txr@alumni.caltech.edu> - 2017-02-09 08:18 -0800
      Re: C Names and Scopes Jerry Stuckle <jstucklex@attglobal.net> - 2017-02-09 12:06 -0500
  Re: C Names and Scopes BartC <bc@freeuk.com> - 2017-02-08 10:51 +0000
  Re: C Names and Scopes Thiago Adams <thiago.adams@gmail.com> - 2017-02-08 03:11 -0800
    Re: C Names and Scopes BartC <bc@freeuk.com> - 2017-02-08 11:39 +0000
      Re: C Names and Scopes BartC <bc@freeuk.com> - 2017-02-08 12:06 +0000
        Re: C Names and Scopes BartC <bc@freeuk.com> - 2017-02-08 13:31 +0000
        Re: C Names and Scopes BartC <bc@freeuk.com> - 2017-02-08 13:40 +0000
          Re: C Names and Scopes Ben Bacarisse <ben.usenet@bsb.me.uk> - 2017-02-08 16:39 +0000
            Re: C Names and Scopes BartC <bc@freeuk.com> - 2017-02-08 17:51 +0000
              Re: C Names and Scopes Ben Bacarisse <ben.usenet@bsb.me.uk> - 2017-02-08 20:56 +0000
                Re: C Names and Scopes BartC <bc@freeuk.com> - 2017-02-08 22:08 +0000
                Re: C Names and Scopes Ben Bacarisse <ben.usenet@bsb.me.uk> - 2017-02-08 23:27 +0000
      Re: C Names and Scopes David Brown <david.brown@hesbynett.no> - 2017-02-08 13:41 +0100
      Re: C Names and Scopes Ben Bacarisse <ben.usenet@bsb.me.uk> - 2017-02-08 14:32 +0000
        Re: C Names and Scopes supercat@casperkitty.com - 2017-02-08 07:28 -0800
          Re: C Names and Scopes BartC <bc@freeuk.com> - 2017-02-08 20:12 +0000
            Re: C Names and Scopes Keith Thompson <kst-u@mib.org> - 2017-02-08 12:38 -0800
              Re: C Names and Scopes BartC <bc@freeuk.com> - 2017-02-08 21:54 +0000
                Re: C Names and Scopes BartC <bc@freeuk.com> - 2017-02-08 22:40 +0000
  Re: C Names and Scopes BartC <bc@freeuk.com> - 2017-02-09 18:48 +0000
    Re: C Names and Scopes Ben Bacarisse <ben.usenet@bsb.me.uk> - 2017-02-09 19:53 +0000
      Re: C Names and Scopes Keith Thompson <kst-u@mib.org> - 2017-02-09 12:25 -0800
        Re: C Names and Scopes Ben Bacarisse <ben.usenet@bsb.me.uk> - 2017-02-09 21:27 +0000
          Re: C Names and Scopes Keith Thompson <kst-u@mib.org> - 2017-02-09 13:57 -0800
            Re: C Names and Scopes David Brown <david.brown@hesbynett.no> - 2017-02-13 10:54 +0100
        Re: C Names and Scopes BartC <bc@freeuk.com> - 2017-02-10 00:26 +0000
          Re: C Names and Scopes Ben Bacarisse <ben.usenet@bsb.me.uk> - 2017-02-10 00:42 +0000
            Re: C Names and Scopes BartC <bc@freeuk.com> - 2017-02-10 01:03 +0000
              Re: C Names and Scopes Ben Bacarisse <ben.usenet@bsb.me.uk> - 2017-02-10 01:49 +0000
                Re: C Names and Scopes BartC <bc@freeuk.com> - 2017-02-10 12:31 +0000
                Re: C Names and Scopes Ben Bacarisse <ben.usenet@bsb.me.uk> - 2017-02-10 23:48 +0000
                Re: C Names and Scopes supercat@casperkitty.com - 2017-02-10 16:06 -0800
                Re: C Names and Scopes Keith Thompson <kst-u@mib.org> - 2017-02-10 16:22 -0800
                Re: C Names and Scopes supercat@casperkitty.com - 2017-02-12 09:17 -0800
                Re: C Names and Scopes Tim Rentsch <txr@alumni.caltech.edu> - 2017-02-15 16:26 -0800
              Re: C Names and Scopes Keith Thompson <kst-u@mib.org> - 2017-02-09 17:56 -0800
              Re: C Names and Scopes supercat@casperkitty.com - 2017-02-10 07:42 -0800
                Re: C Names and Scopes Keith Thompson <kst-u@mib.org> - 2017-02-10 08:44 -0800
                Re: C Names and Scopes supercat@casperkitty.com - 2017-02-10 09:25 -0800
                Re: C Names and Scopes Jerry Stuckle <jstucklex@attglobal.net> - 2017-02-10 16:43 -0500
                Re: C Names and Scopes supercat@casperkitty.com - 2017-02-10 14:04 -0800
                Re: C Names and Scopes BartC <bc@freeuk.com> - 2017-02-10 22:52 +0000
                Re: C Names and Scopes Andrey Tarasevich <andreytarasevich@hotmail.com> - 2017-02-10 15:10 -0800
        Re: C Names and Scopes Tim Rentsch <txr@alumni.caltech.edu> - 2017-02-15 16:31 -0800
      Re: C Names and Scopes BartC <bc@freeuk.com> - 2017-02-09 23:09 +0000
        Re: C Names and Scopes Ben Bacarisse <ben.usenet@bsb.me.uk> - 2017-02-09 23:36 +0000
          Re: C Names and Scopes BartC <bc@freeuk.com> - 2017-02-10 00:19 +0000
            Re: C Names and Scopes Ben Bacarisse <ben.usenet@bsb.me.uk> - 2017-02-10 00:38 +0000
  Re: C Names and Scopes BartC <bc@freeuk.com> - 2017-03-04 01:23 +0000
    Re: C Names and Scopes jameskuyper@verizon.net - 2017-03-03 18:23 -0800
      Re: C Names and Scopes GOTHIER Nathan <nathan.gothier@gmail.com> - 2017-03-04 14:42 +0100
        Re: C Names and Scopes "James R. Kuyper" <jameskuyper@verizon.net> - 2017-03-04 11:02 -0500
          Re: C Names and Scopes GOTHIER Nathan <nathan.gothier@gmail.com> - 2017-03-04 23:35 +0100
            Re: C Names and Scopes Malcolm McLean <malcolm.mclean5@btinternet.com> - 2017-03-04 14:50 -0800
            Re: C Names and Scopes Richard Heathfield <rjh@cpax.org.uk> - 2017-03-05 13:39 +0000
              Re: C Names and Scopes GOTHIER Nathan <nathan.gothier@gmail.com> - 2017-03-05 15:10 +0100
                Re: C Names and Scopes Richard Heathfield <rjh@cpax.org.uk> - 2017-03-05 14:34 +0000
                Re: C Names and Scopes Keith Thompson <kst-u@mib.org> - 2017-03-05 19:25 -0800
              Re: C Names and Scopes raltbos@xs4all.nl (Richard Bos) - 2017-03-06 09:37 +0000
                Re: C Names and Scopes Richard Heathfield <rjh@cpax.org.uk> - 2017-03-06 10:34 +0000
                Re: C Names and Scopes James Kuyper <jameskuyper@verizon.net> - 2017-03-06 07:23 -0500
                Re: C Names and Scopes GOTHIER Nathan <nathan.gothier@gmail.com> - 2017-03-06 14:26 +0100
    Re: C Names and Scopes Keith Thompson <kst-u@mib.org> - 2017-03-04 11:52 -0800
      Re: C Names and Scopes BartC <bc@freeuk.com> - 2017-03-04 20:13 +0000
        Re: C Names and Scopes BartC <bc@freeuk.com> - 2017-03-04 20:17 +0000
        Re: C Names and Scopes Keith Thompson <kst-u@mib.org> - 2017-03-04 12:38 -0800
        Re: C Names and Scopes jameskuyper@verizon.net - 2017-03-04 13:50 -0800
          Re: C Names and Scopes BartC <bc@freeuk.com> - 2017-03-04 22:37 +0000
            Re: C Names and Scopes jameskuyper@verizon.net - 2017-03-04 16:15 -0800
              Re: C Names and Scopes BartC <bc@freeuk.com> - 2017-03-05 00:31 +0000
                Re: C Names and Scopes jameskuyper@verizon.net - 2017-03-04 16:47 -0800
                Re: C Names and Scopes BartC <bc@freeuk.com> - 2017-03-05 01:42 +0000
                Re: C Names and Scopes jameskuyper@verizon.net - 2017-03-04 19:20 -0800
                Re: C Names and Scopes Keith Thompson <kst-u@mib.org> - 2017-03-05 01:40 -0800

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