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| From | Keith Thompson <kst-u@mib.org> |
|---|---|
| Newsgroups | comp.lang.c |
| Subject | Re: Reversing a linked list |
| Date | 2011-09-19 09:56 -0700 |
| Organization | None to speak of |
| Message-ID | <lnvcso5v3b.fsf@nuthaus.mib.org> (permalink) |
| References | (6 earlier) <f5628460-c702-43ac-b946-7f8a274d1b0e@bi2g2000vbb.googlegroups.com> <lnhb4a6yqm.fsf@nuthaus.mib.org> <d648e169-8c24-43a5-9700-c15128ac5235@b28g2000yqa.googlegroups.com> <ln4o0974s6.fsf@nuthaus.mib.org> <2694599f-274b-4006-8371-74a1c05c7414@c22g2000yqa.googlegroups.com> |
henry eshbaugh <henryeshbaugh@gmail.com> writes:
> On Sep 18, 8:30 pm, Keith Thompson <ks...@mib.org> wrote:
>> henry eshbaugh <henryeshba...@gmail.com> writes:
[...]
>> > Here's an example C program:
>>
>> > void __foo(void)
>> > {
>> > return;
>> > }
>>
>> > int main()
>> > {
>> > ___foo();
>> > return 0;
>> > }
>>
>> You define your function as "__foo" and call it as "___foo()". Was that
>> a typo?
> Yup.
[...]
>> > So, again,
>> > it's largely a coding style issue.
>>
>> I never said it wouldn't work with whatever implementation you
>> happen to be using. I didn't even say it would fail under *any*
>> implementation. I said that the behavior is undefined.
>
> Technically, the entire compilation process is undefined. :P.
So what?
The specific compilation process is not defined by the language
standard. The language itself is. That's why the language standard
exists.
> I can't afford any compilers that aren't free, but be my guest to test
> it out and let me know if there are compilers that do that.
>
> I don't see why; it would break a lot of code and be overall pretty
> pointless.
The only code it would break is already broken.
It's completely pointless to use identifiers starting with "__".
By doing so, you risk colliding with identifiers used by the
implementation. By using identifiers that start with letters,
you avoid that risk -- at no cost.
I don't *care* whether any compilers use the name "__foo" internally,
because I don't define reserved identifiers in my own code.
Exactly what benefit do you get by calling your own function "__foo"
(rather than, say, "foo__")?
You have a choice between writing code with well defined behavior and
writing code with undefined behavior. Why do you chose the latter?
--
Keith Thompson (The_Other_Keith) kst-u@mib.org <http://www.ghoti.net/~kst>
"We must do something. This is something. Therefore, we must do this."
-- Antony Jay and Jonathan Lynn, "Yes Minister"
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Reversing a linked list jacob navia <jacob@spamsink.net> - 2011-09-16 08:30 +0200
Re: Reversing a linked list jacob navia <jacob@spamsink.net> - 2011-09-16 08:33 +0200
Re: Reversing a linked list Ben Bacarisse <ben.usenet@bsb.me.uk> - 2011-09-16 12:51 +0100
Re: Reversing a linked list jacob navia <jacob@spamsink.net> - 2011-09-16 14:18 +0200
Re: Reversing a linked list jacob navia <jacob@spamsink.net> - 2011-09-16 14:26 +0200
Re: Reversing a linked list Malcolm McLean <malcolm.mclean5@btinternet.com> - 2011-09-16 07:09 -0700
Re: Reversing a linked list ImpalerCore <jadill33@gmail.com> - 2011-09-16 08:28 -0700
Re: Reversing a linked list falk@rahul.net (Edward A. Falk) - 2011-09-16 16:34 +0000
Re: Reversing a linked list Malcolm McLean <malcolm.mclean5@btinternet.com> - 2011-09-16 09:28 -0700
Re: Reversing a linked list ImpalerCore <jadill33@gmail.com> - 2011-09-16 11:12 -0700
Re: Reversing a linked list "Tony" <nospamme@ever.net> - 2011-09-16 20:01 -0500
Re: Reversing a linked list Ben Bacarisse <ben.usenet@bsb.me.uk> - 2011-09-16 21:56 +0100
Re: Reversing a linked list "Tony" <nospamme@ever.net> - 2011-09-16 20:16 -0500
Re: Reversing a linked list Ben Bacarisse <ben.usenet@bsb.me.uk> - 2011-09-17 02:48 +0100
Re: Reversing a linked list "Tony" <nospamme@ever.net> - 2011-09-16 22:15 -0500
Re: Reversing a linked list jacob navia <jacob@spamsink.net> - 2011-09-17 07:40 +0200
Re: Reversing a linked list "Tony" <nospamme@ever.net> - 2011-09-17 01:24 -0500
Re: Reversing a linked list cri@tiac.net (Richard Harter) - 2011-09-17 15:07 +0000
Re: Reversing a linked list jacob navia <jacob@spamsink.net> - 2011-09-17 17:47 +0200
Re: Reversing a linked list jacob navia <jacob@spamsink.net> - 2011-09-17 17:54 +0200
Re: Reversing a linked list Michael Press <rubrum@pacbell.net> - 2011-09-27 19:21 -0700
Re: Reversing a linked list Ben Bacarisse <ben.usenet@bsb.me.uk> - 2011-09-17 12:00 +0100
Re: Reversing a linked list "Tony" <nospamme@ever.net> - 2011-09-17 23:53 -0500
Re: Reversing a linked list ImpalerCore <jadill33@gmail.com> - 2011-09-16 07:21 -0700
Re: Reversing a linked list jacob navia <jacob@spamsink.net> - 2011-09-16 16:47 +0200
Re: Reversing a linked list Malcolm McLean <malcolm.mclean5@btinternet.com> - 2011-09-16 08:20 -0700
Re: Reversing a linked list "Tony" <nospamme@ever.net> - 2011-09-16 20:25 -0500
Re: Reversing a linked list Ben Bacarisse <ben.usenet@bsb.me.uk> - 2011-09-16 22:32 +0100
Re: Reversing a linked list pete <pfiland@mindspring.com> - 2011-09-16 17:53 -0400
Re: Reversing a linked list "Tony" <nospamme@ever.net> - 2011-09-16 19:48 -0500
Re: Reversing a linked list Ben Bacarisse <ben.usenet@bsb.me.uk> - 2011-09-17 02:41 +0100
Re: Reversing a linked list "Tony" <nospamme@ever.net> - 2011-09-16 22:57 -0500
Re: Reversing a linked list "BartC" <bc@freeuk.com> - 2011-09-17 12:48 +0100
Re: Reversing a linked list jacob navia <jacob@spamsink.net> - 2011-09-17 13:55 +0200
Re: Reversing a linked list "Tony" <nospamme@ever.net> - 2011-09-17 23:39 -0500
Re: Reversing a linked list HENRY Eshbaugh <henryeshbaugh@gmail.com> - 2011-09-16 16:56 -0700
Re: Reversing a linked list Ian Collins <ian-news@hotmail.com> - 2011-09-17 12:09 +1200
Re: Reversing a linked list HENRY Eshbaugh <henryeshbaugh@gmail.com> - 2011-09-16 19:53 -0700
Re: Reversing a linked list "Tony" <nospamme@ever.net> - 2011-09-16 23:00 -0500
Re: Reversing a linked list Jonathan Leffler <jleffler@earthlink.net> - 2011-09-16 23:20 -0700
Re: Reversing a linked list Keith Thompson <kst-u@mib.org> - 2011-09-17 13:46 -0700
Re: Reversing a linked list henry eshbaugh <henryeshbaugh@gmail.com> - 2011-09-17 19:51 -0700
Re: Reversing a linked list Keith Thompson <kst-u@mib.org> - 2011-09-18 01:28 -0700
Re: Reversing a linked list henry eshbaugh <henryeshbaugh@gmail.com> - 2011-09-18 15:39 -0700
Re: Reversing a linked list Kleuskes & Moos <kleuske@somewhere.else.net> - 2011-09-18 22:43 +0000
Re: Reversing a linked list henry eshbaugh <henryeshbaugh@gmail.com> - 2011-09-18 17:54 -0700
Re: Reversing a linked list James Kuyper <jameskuyper@verizon.net> - 2011-09-18 21:20 -0400
Re: Reversing a linked list Keith Thompson <kst-u@mib.org> - 2011-09-18 17:30 -0700
Re: Reversing a linked list henry eshbaugh <henryeshbaugh@gmail.com> - 2011-09-18 17:51 -0700
Re: Reversing a linked list James Kuyper <jameskuyper@verizon.net> - 2011-09-18 21:34 -0400
Re: Reversing a linked list Robert Wessel <robertwessel2@yahoo.com> - 2011-09-18 21:25 -0500
Re: Reversing a linked list Keith Thompson <kst-u@mib.org> - 2011-09-19 09:56 -0700
Re: Reversing a linked list gazelle@shell.xmission.com (Kenny McCormack) - 2011-09-19 17:16 +0000
Re: Reversing a linked list Willem <willem@toad.stack.nl> - 2011-09-19 17:25 +0000
Re: Reversing a linked list Malcolm McLean <malcolm.mclean5@btinternet.com> - 2011-09-19 23:40 -0700
Re: Reversing a linked list henry eshbaugh <henryeshbaugh@gmail.com> - 2011-09-20 17:55 -0700
Re: Reversing a linked list henry eshbaugh <henryeshbaugh@gmail.com> - 2011-09-20 17:48 -0700
Re: Reversing a linked list Geoff <geoff@invalid.invalid> - 2011-09-20 19:12 -0700
Re: Reversing a linked list henry eshbaugh <henryeshbaugh@gmail.com> - 2011-09-21 10:15 -0700
Re: Reversing a linked list David Resnick <lndresnick@gmail.com> - 2011-09-22 08:43 -0700
Re: Reversing a linked list Malcolm McLean <malcolm.mclean5@btinternet.com> - 2011-09-23 02:45 -0700
Re: Reversing a linked list David Resnick <lndresnick@gmail.com> - 2011-09-23 05:38 -0700
Re: Reversing a linked list Malcolm McLean <malcolm.mclean5@btinternet.com> - 2011-09-23 07:58 -0700
Re: Reversing a linked list David Resnick <lndresnick@gmail.com> - 2011-09-23 08:15 -0700
Re: Reversing a linked list Ben Bacarisse <ben.usenet@bsb.me.uk> - 2011-09-23 18:00 +0100
Re: Reversing a linked list David Resnick <lndresnick@gmail.com> - 2011-09-23 10:49 -0700
Re: Reversing a linked list Ben Bacarisse <ben.usenet@bsb.me.uk> - 2011-09-23 20:05 +0100
Re: Reversing a linked list pete <pfiland@mindspring.com> - 2011-09-23 18:05 -0400
Re: Reversing a linked list Ben Bacarisse <ben.usenet@bsb.me.uk> - 2011-09-24 00:19 +0100
Re: Reversing a linked list ImpalerCore <jadill33@gmail.com> - 2011-09-23 09:25 -0700
Re: Reversing a linked list Phil Carmody <thefatphil_demunged@yahoo.co.uk> - 2011-09-22 22:49 +0300
Re: Reversing a linked list Keith Thompson <kst-u@mib.org> - 2011-09-20 19:51 -0700
Re: Reversing a linked list henry eshbaugh <henryeshbaugh@gmail.com> - 2011-09-21 09:51 -0700
Re: Reversing a linked list Keith Thompson <kst-u@mib.org> - 2011-09-21 11:21 -0700
Re: Reversing a linked list James Kuyper <jameskuyper@verizon.net> - 2011-09-20 23:00 -0400
Re: Reversing a linked list henry eshbaugh <henryeshbaugh@gmail.com> - 2011-09-21 09:47 -0700
Re: Reversing a linked list Phil Carmody <thefatphil_demunged@yahoo.co.uk> - 2011-09-23 11:22 +0300
Re: Reversing a linked list Keith Thompson <kst-u@mib.org> - 2011-09-23 08:20 -0700
Re: Reversing a linked list Ben Bacarisse <ben.usenet@bsb.me.uk> - 2011-09-23 18:12 +0100
Re: Reversing a linked list Tim Rentsch <txr@alumni.caltech.edu> - 2012-01-24 13:13 -0800
Re: Reversing a linked list Phil Carmody <thefatphil_demunged@yahoo.co.uk> - 2011-09-23 23:49 +0300
Re: Reversing a linked list James Kuyper <jameskuyper@verizon.net> - 2011-09-24 08:15 -0400
Re: Reversing a linked list Phil Carmody <thefatphil_demunged@yahoo.co.uk> - 2011-09-24 20:15 +0300
Re: Reversing a linked list Tim Rentsch <txr@alumni.caltech.edu> - 2012-01-24 13:28 -0800
Re: Reversing a linked list Phil Carmody <thefatphil_demunged@yahoo.co.uk> - 2012-02-12 01:41 +0200
Re: Reversing a linked list Tim Rentsch <txr@alumni.caltech.edu> - 2012-03-08 09:08 -0800
Re: Reversing a linked list Phil Carmody <thefatphil_demunged@yahoo.co.uk> - 2012-03-13 17:21 +0200
Re: Reversing a linked list Tim Rentsch <txr@alumni.caltech.edu> - 2012-01-24 13:04 -0800
Re: Reversing a linked list Seebs <usenet-nospam@seebs.net> - 2011-09-23 01:46 +0000
Re: Reversing a linked list James Kuyper <jameskuyper@verizon.net> - 2011-09-18 21:17 -0400
Re: Reversing a linked list "Tony" <nospamme@ever.net> - 2011-09-17 23:50 -0500
Re: Reversing a linked list Keith Thompson <kst-u@mib.org> - 2011-09-18 01:29 -0700
Re: Reversing a linked list Seebs <usenet-nospam@seebs.net> - 2011-09-18 07:03 +0000
Re: Reversing a linked list Ben Bacarisse <ben.usenet@bsb.me.uk> - 2011-09-17 02:13 +0100
Re: Reversing a linked list HENRY Eshbaugh <henryeshbaugh@gmail.com> - 2011-09-16 19:52 -0700
Re: Reversing a linked list Willem <willem@toad.stack.nl> - 2011-09-17 08:58 +0000
Re: Reversing a linked list henry eshbaugh <henryeshbaugh@gmail.com> - 2011-09-18 15:32 -0700
Re: Reversing a linked list James Kuyper <jameskuyper@verizon.net> - 2011-09-18 21:36 -0400
Re: Reversing a linked list cri@tiac.net (Richard Harter) - 2011-09-19 05:24 +0000
Re: Reversing a linked list James Kuyper <jameskuyper@verizon.net> - 2011-09-19 08:21 -0400
Re: Reversing a linked list cri@tiac.net (Richard Harter) - 2011-09-19 14:28 +0000
Re: Reversing a linked list Ben Bacarisse <ben.usenet@bsb.me.uk> - 2011-09-19 17:01 +0100
Re: Reversing a linked list cri@tiac.net (Richard Harter) - 2011-09-19 16:25 +0000
Re: Reversing a linked list henry eshbaugh <henryeshbaugh@gmail.com> - 2011-09-21 10:41 -0700
Re: Reversing a linked list Kleuskes & Moos <kleuske@somewhere.else.net> - 2011-09-21 17:58 +0000
Re: Reversing a linked list James Kuyper <jameskuyper@verizon.net> - 2011-09-21 14:07 -0400
Re: Reversing a linked list Malcolm McLean <malcolm.mclean5@btinternet.com> - 2011-09-21 11:15 -0700
Re: Reversing a linked list Keith Thompson <kst-u@mib.org> - 2011-09-21 11:37 -0700
Re: Reversing a linked list Phil Carmody <thefatphil_demunged@yahoo.co.uk> - 2011-09-23 11:50 +0300
Re: Reversing a linked list Seebs <usenet-nospam@seebs.net> - 2011-09-23 01:46 +0000
Re: Reversing a linked list Geoff <geoff@invalid.invalid> - 2011-09-18 18:22 -0700
Re: Reversing a linked list "Tony" <nospamme@ever.net> - 2011-09-16 19:37 -0500
Re: Reversing a linked list jacob navia <jacob@spamsink.net> - 2011-09-17 07:52 +0200
Re: Reversing a linked list "Tony" <nospamme@ever.net> - 2011-09-17 02:09 -0500
Re: Reversing a linked list Ian Collins <ian-news@hotmail.com> - 2011-09-17 19:35 +1200
Re: Reversing a linked list "Tony" <nospamme@ever.net> - 2011-09-17 03:35 -0500
Programming languages jacob navia <jacob@spamsink.net> - 2011-09-17 22:14 +0200
Re: Programming languages "Tony" <nospamme@ever.net> - 2011-09-18 00:11 -0500
Re: Programming languages jacob navia <jacob@spamsink.net> - 2011-09-18 08:37 +0200
Re: Programming languages Seebs <usenet-nospam@seebs.net> - 2011-09-18 07:03 +0000
Re: Programming languages jacob navia <jacob@spamsink.net> - 2011-09-18 09:50 +0200
Re: Programming languages Keith Thompson <kst-u@mib.org> - 2011-09-18 01:31 -0700
Re: Programming languages James Kuyper <jameskuyper@verizon.net> - 2011-09-18 06:43 -0400
Re: Programming languages Nick Keighley <nick_keighley_nospam@hotmail.com> - 2011-09-18 07:42 -0700
Re: Programming languages "Tony" <nospamme@ever.net> - 2011-09-18 04:05 -0500
Re: Programming languages Nick Keighley <nick_keighley_nospam@hotmail.com> - 2011-09-18 07:40 -0700
Re: Reversing a linked list Gene <gene.ressler@gmail.com> - 2011-09-22 06:59 -0700
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