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Groups > comp.lang.c > #94675

Re: Why I use gcc

From Ben Bacarisse <ben.usenet@bsb.me.uk>
Newsgroups comp.lang.c
Subject Re: Why I use gcc
Date 2016-10-09 20:00 +0100
Organization A noiseless patient Spider
Message-ID <87wphhtkjw.fsf@bsb.me.uk> (permalink)
References (15 earlier) <72eec67f-1e75-40df-8b23-48a90d8f3db6@googlegroups.com> <87lgxxvkrw.fsf@bsb.me.uk> <ntda4n$g2v$1@dont-email.me> <878ttxvfx9.fsf@bsb.me.uk> <ntdgsq$74f$1@dont-email.me>

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BartC <bc@freeuk.com> writes:

> On 09/10/2016 13:57, Ben Bacarisse wrote:
>> BartC <bc@freeuk.com> writes:
>
>>> Doubtless some subtle rendering
>>> of C's pointer/array rules. But it means I would probably write those
>>> last two lines as:
>>>
>>>   struct some_tag *start = &buffer[0];
>>>   struct some_tag *end   = &buffer[SIZE];
>>>
>>> This way there is symmetry, the equivalance is clearer, and there is
>>> less head-scratching.)
>>
>> Fine, but I prefer not to repeat the size and the type.
>
> Isn't that the purpose of defining a name such as SIZE?

I still prefer not to repeat it; then I don't have to check that both
places use the same name.

> Anyway from
> the reader's point of view repetition makes it clearer (than a gimmick
> such as (&buffer)[1] or using sizeof buffer/sizeof buffer[0], or even
> buffer+SIZE)

Which reader?  This is always the problem I have.  How low should one
go?  In the end, I usually just write for me since I can't see any other
reasonable level to pitch at.

> [In my language, I'd have to write either &buffer[buffer.len],
> repeating the name, or &buffer[$], which uses a gimmick. And they only
> work when the lower bound is zero. So not satisfactory either.]
>
> Regarding repeating the type, you can use Tim's technique:
>
>    struct some_tag *start = &buffer[0],
>                    *end   = &buffer[SIZE];

That's what I wrote (except I used a different expression for end).  To
be clear, I was making no remarks about layout -- add or remove newlines
or spaces as your preferred style requires -- my comment was about my
preference for multiple declarators in a declaration.

>> By the way, what level comprehension do you typically target when
>> writing C and how did you come to decide on that level?
>
> Probably lower than an expert such as you. Most aren't as comfortable
> with 'horizontally' structured code such as Lisp or Haskell as you
> are.

OK, but how does one choose?  It's a real question.  You, presumably,
don't write code you consider to be hard for others to read, so how do
you go about deciding?  For me, the simplest solution is to write for
oneself and hope that comments, good structure and choice of identifies
-- along with willingness to look at a reference every now and then --
will get most readers by.

-- 
Ben.

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Thread

Why I use gcc BartC <bc@freeuk.com> - 2016-09-26 14:31 +0100
  Re: Why I use gcc David Brown <david.brown@hesbynett.no> - 2016-09-26 15:45 +0200
    Re: Why I use gcc BartC <bc@freeuk.com> - 2016-09-26 15:22 +0100
      Re: Why I use gcc David Brown <david.brown@hesbynett.no> - 2016-09-26 16:31 +0200
      Re: Why I use gcc Tim Rentsch <txr@alumni.caltech.edu> - 2016-09-27 15:05 -0700
        Re: Why I use gcc BartC <bc@freeuk.com> - 2016-09-28 00:42 +0100
          Re: Why I use gcc Tim Rentsch <txr@alumni.caltech.edu> - 2016-09-28 09:50 -0700
            Re: Why I use gcc BartC <bc@freeuk.com> - 2016-09-28 18:39 +0100
              Re: Why I use gcc BartC <bc@freeuk.com> - 2016-10-07 12:28 +0100
                Re: Why I use gcc Malcolm McLean <malcolm.mclean5@btinternet.com> - 2016-10-07 04:36 -0700
              Re: Why I use gcc Thiago Adams <thiago.adams@gmail.com> - 2016-10-07 05:31 -0700
                Re: Why I use gcc BartC <bc@freeuk.com> - 2016-10-07 14:00 +0100
                Re: Why I use gcc Thiago Adams <thiago.adams@gmail.com> - 2016-10-07 07:48 -0700
                Re: Why I use gcc BartC <bc@freeuk.com> - 2016-10-07 17:36 +0100
                Re: Why I use gcc Thiago Adams <thiago.adams@gmail.com> - 2016-10-07 10:38 -0700
                Re: Why I use gcc BartC <bc@freeuk.com> - 2016-10-07 19:47 +0100
                Re: Why I use gcc Keith Thompson <kst-u@mib.org> - 2016-10-07 12:25 -0700
                Re: Why I use gcc Thiago Adams <thiago.adams@gmail.com> - 2016-10-07 12:26 -0700
                Re: Why I use gcc Keith Thompson <kst-u@mib.org> - 2016-10-07 13:10 -0700
                Re: Why I use gcc Thiago Adams <thiago.adams@gmail.com> - 2016-10-07 13:22 -0700
                Re: Why I use gcc Keith Thompson <kst-u@mib.org> - 2016-10-07 14:13 -0700
                Re: Why I use gcc BartC <bc@freeuk.com> - 2016-10-08 01:15 +0100
                Re: Why I use gcc James Harris <james.harris.1@gmail.com> - 2016-10-08 10:42 +0100
                Re: Why I use gcc BartC <bc@freeuk.com> - 2016-10-08 11:36 +0100
                Re: Why I use gcc Ben Bacarisse <ben.usenet@bsb.me.uk> - 2016-10-08 14:25 +0100
                Re: Why I use gcc BartC <bc@freeuk.com> - 2016-10-08 15:05 +0100
                Re: Why I use gcc BartC <bc@freeuk.com> - 2016-10-08 16:29 +0100
                Re: Why I use gcc Ben Bacarisse <ben.usenet@bsb.me.uk> - 2016-10-08 17:21 +0100
                Re: Why I use gcc Ben Bacarisse <ben.usenet@bsb.me.uk> - 2016-10-08 16:39 +0100
                Re: Why I use gcc BartC <bc@freeuk.com> - 2016-10-08 16:58 +0100
                Re: Why I use gcc Ben Bacarisse <ben.usenet@bsb.me.uk> - 2016-10-08 21:15 +0100
                Re: Why I use gcc supercat@casperkitty.com - 2016-10-08 11:27 -0700
                Re: Why I use gcc BartC <bc@freeuk.com> - 2016-10-08 20:09 +0100
                Re: Why I use gcc Ben Bacarisse <ben.usenet@bsb.me.uk> - 2016-10-08 21:16 +0100
                Re: Why I use gcc BartC <bc@freeuk.com> - 2016-10-08 21:28 +0100
                Re: Why I use gcc Ben Bacarisse <ben.usenet@bsb.me.uk> - 2016-10-09 01:19 +0100
                Re: Why I use gcc BartC <bc@freeuk.com> - 2016-10-09 01:36 +0100
                Re: Why I use gcc Thiago Adams <thiago.adams@gmail.com> - 2016-10-08 09:32 -0700
                Re: Why I use gcc Tim Rentsch <txr@alumni.caltech.edu> - 2016-10-09 03:44 -0700
                Re: Why I use gcc BartC <bc@freeuk.com> - 2016-10-09 12:07 +0100
                Re: Why I use gcc Ben Bacarisse <ben.usenet@bsb.me.uk> - 2016-10-09 12:12 +0100
                Re: Why I use gcc BartC <bc@freeuk.com> - 2016-10-09 12:37 +0100
                Re: Why I use gcc Ben Bacarisse <ben.usenet@bsb.me.uk> - 2016-10-09 13:57 +0100
                Re: Why I use gcc BartC <bc@freeuk.com> - 2016-10-09 14:32 +0100
                Re: Why I use gcc Ben Bacarisse <ben.usenet@bsb.me.uk> - 2016-10-09 20:00 +0100
                Re: Why I use gcc Malcolm McLean <malcolm.mclean5@btinternet.com> - 2016-10-09 13:14 -0700
                Re: Why I use gcc BartC <bc@freeuk.com> - 2016-10-09 22:54 +0100
                Re: Why I use gcc Tim Rentsch <txr@alumni.caltech.edu> - 2016-10-15 14:40 -0700
                Re: Why I use gcc James Kuyper <jameskuyper@verizon.net> - 2016-10-07 10:37 -0400
                Re: Why I use gcc supercat@casperkitty.com - 2016-10-07 07:52 -0700
                Re: Why I use gcc jameskuyper@verizon.net - 2016-10-07 09:10 -0700
                Re: Why I use gcc supercat@casperkitty.com - 2016-10-07 10:48 -0700
                Re: Why I use gcc jameskuyper@verizon.net - 2016-10-07 16:21 -0700
                Re: Why I use gcc supercat@casperkitty.com - 2016-10-08 11:15 -0700
                Re: Why I use gcc BartC <bc@freeuk.com> - 2016-10-07 17:12 +0100
                Re: Why I use gcc Keith Thompson <kst-u@mib.org> - 2016-10-07 12:20 -0700
                Re: Why I use gcc Thiago Adams <thiago.adams@gmail.com> - 2016-10-07 12:32 -0700
  Re: Why I use gcc Richard Heathfield <rjh@cpax.org.uk> - 2016-09-26 14:45 +0100
    Re: Why I use gcc BartC <bc@freeuk.com> - 2016-09-26 15:12 +0100
      Re: Why I use gcc Richard Heathfield <rjh@cpax.org.uk> - 2016-09-26 15:26 +0100
        Re: Why I use gcc supercat@casperkitty.com - 2016-09-26 08:00 -0700
          Re: Why I use gcc Tim Rentsch <txr@alumni.caltech.edu> - 2016-09-28 10:49 -0700
        Re: Why I use gcc BartC <bc@freeuk.com> - 2016-09-26 17:30 +0100
          Re: Why I use gcc David Brown <david.brown@hesbynett.no> - 2016-09-26 21:12 +0200
            Re: Why I use gcc jacobnavia <jacob@jacob.remcomp.fr> - 2016-09-26 22:09 +0200
            Re: Why I use gcc supercat@casperkitty.com - 2016-09-26 13:32 -0700
              Re: Why I use gcc jacobnavia <jacob@jacob.remcomp.fr> - 2016-09-26 23:14 +0200
                Re: Why I use gcc Richard Heathfield <rjh@cpax.org.uk> - 2016-09-26 22:47 +0100
                Re: Why I use gcc BartC <bc@freeuk.com> - 2016-09-27 01:13 +0100
                Re: Why I use gcc Richard Heathfield <rjh@cpax.org.uk> - 2016-09-27 01:18 +0100
                Re: Why I use gcc Keith Thompson <kst-u@mib.org> - 2016-09-26 17:41 -0700
                Re: Why I use gcc BartC <bc@freeuk.com> - 2016-09-27 02:01 +0100
                Re: Why I use gcc Keith Thompson <kst-u@mib.org> - 2016-09-27 08:41 -0700
                Re: Why I use gcc James Harris <james.harris.1@gmail.com> - 2016-09-27 01:41 +0100
                Re: Why I use gcc jameskuyper@verizon.net - 2016-09-26 18:15 -0700
                Re: Why I use gcc Gareth Owen <gwowen@gmail.com> - 2016-09-27 20:59 +0100
                Re: Why I use gcc Richard Heathfield <rjh@cpax.org.uk> - 2016-09-27 21:50 +0100
                Re: Why I use gcc Tim Rentsch <txr@alumni.caltech.edu> - 2016-09-28 06:26 -0700
                Re: Why I use gcc gazelle@shell.xmission.com (Kenny McCormack) - 2016-09-27 23:23 +0000
                Re: Why I use gcc Noob <root@127.0.0.1> - 2016-10-08 00:12 +0200
                Re: Why I use gcc James Kuyper <jameskuyper@verizon.net> - 2016-10-07 23:11 -0400
                Re: Why I use gcc BartC <bc@freeuk.com> - 2016-10-08 10:58 +0100
                Re: Why I use gcc jameskuyper@verizon.net - 2016-10-08 07:07 -0700
                Re: Why I use gcc Malcolm McLean <malcolm.mclean5@btinternet.com> - 2016-10-07 21:44 -0700
              Re: Why I use gcc David Brown <david.brown@hesbynett.no> - 2016-09-27 09:48 +0200
                Re: Why I use gcc BartC <bc@freeuk.com> - 2016-09-27 11:22 +0100
                Re: Why I use gcc David Brown <david.brown@hesbynett.no> - 2016-09-27 13:52 +0200
                Re: Why I use gcc jacobnavia <jacob@jacob.remcomp.fr> - 2016-09-27 14:47 +0200
                Re: Why I use gcc David Brown <david.brown@hesbynett.no> - 2016-09-27 15:18 +0200
                Re: Why I use gcc BartC <bc@freeuk.com> - 2016-09-27 14:38 +0100
                Re: Why I use gcc jacobnavia <jacob@jacob.remcomp.fr> - 2016-09-27 17:21 +0200
                Re: Why I use gcc jacobnavia <jacob@jacob.remcomp.fr> - 2016-09-27 17:17 +0200
                Re: Why I use gcc Keith Thompson <kst-u@mib.org> - 2016-09-27 08:52 -0700
                Re: Why I use gcc Robert Wessel <robertwessel2@yahoo.com> - 2016-09-30 02:00 -0500
                Re: Why I use gcc supercat@casperkitty.com - 2016-09-27 07:18 -0700
                Re: Why I use gcc Keith Thompson <kst-u@mib.org> - 2016-09-27 08:46 -0700
                Re: Why I use gcc supercat@casperkitty.com - 2016-09-27 09:11 -0700
                Re: Why I use gcc Ben Bacarisse <ben.usenet@bsb.me.uk> - 2016-09-27 13:33 +0100
                Re: Why I use gcc BartC <bc@freeuk.com> - 2016-09-27 14:13 +0100
                Re: Why I use gcc Ben Bacarisse <ben.usenet@bsb.me.uk> - 2016-09-27 15:30 +0100
                Re: Why I use gcc supercat@casperkitty.com - 2016-09-27 08:29 -0700
                Re: Why I use gcc supercat@casperkitty.com - 2016-09-27 07:11 -0700
            Re: Why I use gcc BartC <bc@freeuk.com> - 2016-09-26 21:43 +0100
            Re: Why I use gcc raltbos@xs4all.nl (Richard Bos) - 2016-09-30 17:50 +0000
          Re: Why I use gcc BartC <bc@freeuk.com> - 2016-09-27 01:04 +0100
            Re: Why I use gcc Keith Thompson <kst-u@mib.org> - 2016-09-26 17:39 -0700
              Re: Why I use gcc BartC <bc@freeuk.com> - 2016-09-27 01:49 +0100
                Re: Why I use gcc Ben Bacarisse <ben.usenet@bsb.me.uk> - 2016-09-27 11:39 +0100
                Re: Why I use gcc BartC <bc@freeuk.com> - 2016-09-27 11:56 +0100
                Re: Why I use gcc Tim Rentsch <txr@alumni.caltech.edu> - 2016-09-27 15:15 -0700
                Re: Why I use gcc David Brown <david.brown@hesbynett.no> - 2016-09-28 08:55 +0200
    Re: Why I use gcc jacobnavia <jacob@jacob.remcomp.fr> - 2016-09-26 22:11 +0200
      Re: Why I use gcc Richard Heathfield <rjh@cpax.org.uk> - 2016-09-26 22:04 +0100
  Re: Why I use gcc BartC <bc@freeuk.com> - 2016-10-10 11:39 +0100
    Re: Why I use gcc already5chosen@yahoo.com - 2016-10-10 07:32 -0700
      Re: Why I use gcc Richard Heathfield <rjh@cpax.org.uk> - 2016-10-10 16:17 +0100
        Re: Why I use gcc Robert Wessel <robertwessel2@yahoo.com> - 2016-10-10 21:09 -0500
          Re: Why I use gcc Richard Heathfield <rjh@cpax.org.uk> - 2016-10-11 04:18 +0100
          Re: Why I use gcc BartC <bc@freeuk.com> - 2016-10-11 10:56 +0100
            Re: Why I use gcc already5chosen@yahoo.com - 2016-10-11 04:08 -0700
              Re: Why I use gcc BartC <bc@freeuk.com> - 2016-10-11 13:36 +0100
                Re: Why I use gcc already5chosen@yahoo.com - 2016-10-11 06:20 -0700
                Re: Why I use gcc BartC <bc@freeuk.com> - 2016-10-11 14:29 +0100
                Re: Why I use gcc Keith Thompson <kst-u@mib.org> - 2016-10-11 09:31 -0700
                Re: Why I use gcc BartC <bc@freeuk.com> - 2016-10-11 19:38 +0100
                Re: Why I use gcc supercat@casperkitty.com - 2016-10-11 12:23 -0700
                Re: Why I use gcc jacobnavia <jacob@jacob.remcomp.fr> - 2016-10-11 23:19 +0200
                Re: Why I use gcc BartC <bc@freeuk.com> - 2016-10-11 23:26 +0100
                Re: Why I use gcc jacobnavia <jacob@jacob.remcomp.fr> - 2016-10-12 09:01 +0200
                Re: Why I use gcc supercat@casperkitty.com - 2016-10-12 08:55 -0700
                Re: Why I use gcc already5chosen@yahoo.com - 2016-10-12 10:52 -0700
                Re: Why I use gcc supercat@casperkitty.com - 2016-10-12 12:34 -0700
                Re: Why I use gcc Keith Thompson <kst-u@mib.org> - 2016-10-12 13:18 -0700
                Re: Why I use gcc luser droog <luser.droog@gmail.com> - 2016-10-12 13:24 -0700
                Re: Why I use gcc crankypuss <undisclosedUserid@gmail.com> - 2016-10-13 13:31 -0600
                Re: Why I use gcc Malcolm McLean <malcolm.mclean5@btinternet.com> - 2016-10-16 03:00 -0700
                Re: Why I use gcc crankypuss <undisclosedUserid@gmail.com> - 2016-10-16 04:46 -0600
                Re: Why I use gcc Malcolm McLean <malcolm.mclean5@btinternet.com> - 2016-10-16 04:05 -0700
                Re: Why I use gcc Keith Thompson <kst-u@mib.org> - 2016-10-11 12:28 -0700
                Re: Why I use gcc Thiago Adams <thiago.adams@gmail.com> - 2016-10-11 13:24 -0700
                Re: Why I use gcc BartC <bc@freeuk.com> - 2016-10-11 21:28 +0100
                Re: Why I use gcc gazelle@shell.xmission.com (Kenny McCormack) - 2016-10-11 20:43 +0000
                Re: Why I use gcc Robert Wessel <robertwessel2@yahoo.com> - 2016-10-11 23:40 -0500
            Re: Why I use gcc already5chosen@yahoo.com - 2016-10-11 04:40 -0700
      Re: Why I use gcc BartC <bc@freeuk.com> - 2016-10-10 18:19 +0100
    Re: Why I use gcc Keith Thompson <kst-u@mib.org> - 2016-10-10 09:08 -0700
      Re: Why I use gcc BartC <bc@freeuk.com> - 2016-10-10 18:04 +0100
        Re: Why I use gcc supercat@casperkitty.com - 2016-10-10 10:39 -0700
        Re: Why I use gcc Keith Thompson <kst-u@mib.org> - 2016-10-10 11:25 -0700
      Re: Why I use gcc Jerry Stuckle <jstucklex@attglobal.net> - 2016-10-10 17:05 -0400
        Re: Why I use gcc supercat@casperkitty.com - 2016-10-10 14:46 -0700
    Re: Why I use gcc BartC <bc@freeuk.com> - 2016-10-15 13:39 +0100
      Re: Why I use gcc Keith Thompson <kst-u@mib.org> - 2016-10-15 13:40 -0700
        Re: Why I use gcc already5chosen@yahoo.com - 2016-10-15 13:46 -0700

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