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| From | Keith Thompson <kst-u@mib.org> |
|---|---|
| Newsgroups | comp.lang.c |
| Subject | Re: trying a linked list |
| Date | 2016-05-09 13:47 -0700 |
| Organization | None to speak of |
| Message-ID | <ln4ma7ufet.fsf@kst-u.example.com> (permalink) |
| References | (8 earlier) <ngo0s4$g9h$1@dont-email.me> <ln60uoxmug.fsf@kst-u.example.com> <ngqif8$kn9$1@dont-email.me> <lninynuldz.fsf@kst-u.example.com> <ngqlud$2vo$1@dont-email.me> |
"Bill Cunningham" <nospam@nspam.invalid> writes:
> "Keith Thompson" <kst-u@mib.org> wrote in message
> news:lninynuldz.fsf@kst-u.example.com...
>> "Bill Cunningham" <nospam@nspam.invalid> writes:
>>> "Keith Thompson" <kst-u@mib.org> wrote in message
>>> news:ln60uoxmug.fsf@kst-u.example.com...
>>>> "Bill Cunningham" <nospam@nspam.invalid> writes:
>> [...]
>>>>> {
>>>>> struct node base;
>>>>> struct node *sp;
>>>>> sp = &base;
>>>>> sp->number = 1;
>>>>> printf("%d\n", *sp);
>>>>
>>>> This is the same mistake you made before.
>>>>
>>>> "%d" requires an argument of type int. What is the type of *sp?
>>>> What do you expect this printf call to do?
>>>
>>> IDK but
>> [...]
>>
>> Then my advice is to stop and don't attempt anything else until you can
>> answer those questions.
>
> The type is either struct node or struct node * and they're both very
> different.
Yes, it's either struct node or struct node*. Which is it?
What is the type of sp? (You should know, you defined it.) Given the
type of sp, what is the type of *sp?
> I tried casting both and it didn't work.
You're trying to add a cast because you're flailing around at random
without understanding what you're doing. Stop it. For what I *think*
you're trying to do, you don't need any casts at all.
> The size of struct node
> is 16 bytes too I see.
The size of struct node is not particularly relevant.
And you haven't addressed the last question I asked. You wrote:
printf("%d\n", *sp);
I asked what you expect that printf() call to do. Perhaps a better
question is: What exactly are you *trying* to do? What value are you
trying to print? (By "what value" I don't mean, for example, 4. I mean
the value of *what*.)
--
Keith Thompson (The_Other_Keith) kst-u@mib.org <http://www.ghoti.net/~kst>
Working, but not speaking, for JetHead Development, Inc.
"We must do something. This is something. Therefore, we must do this."
-- Antony Jay and Jonathan Lynn, "Yes Minister"
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trying a linked list "Bill Cunningham" <nospam@nspam.invalid> - 2016-05-07 17:06 -0400
Re: trying a linked list "Bill Cunningham" <nospam@nspam.invalid> - 2016-05-07 17:32 -0400
Re: trying a linked list Rosario19 <Ros@invalid.invalid> - 2016-05-07 23:44 +0200
Re: trying a linked list "martin.ambuhl" <mambuhl@earthlink.net> - 2016-05-07 19:49 -0400
Re: trying a linked list Richard Heathfield <rjh@cpax.org.uk> - 2016-05-08 07:46 +0100
Re: trying a linked list Keith Thompson <kst-u@mib.org> - 2016-05-07 14:35 -0700
Re: trying a linked list "Bill Cunningham" <nospam@nspam.invalid> - 2016-05-07 17:53 -0400
Re: trying a linked list Keith Thompson <kst-u@mib.org> - 2016-05-07 15:01 -0700
Re: trying a linked list "Bill Cunningham" <nospam@nspam.invalid> - 2016-05-07 19:18 -0400
Re: trying a linked list Jerry Stuckle <jstucklex@attglobal.net> - 2016-05-07 19:28 -0400
Re: trying a linked list Keith Thompson <kst-u@mib.org> - 2016-05-07 16:40 -0700
Re: trying a linked list Malcolm McLean <malcolm.mclean5@btinternet.com> - 2016-05-07 17:15 -0700
Re: trying a linked list "Bill Cunningham" <nospam@nspam.invalid> - 2016-05-07 20:25 -0400
Re: trying a linked list Keith Thompson <kst-u@mib.org> - 2016-05-07 20:10 -0700
Re: trying a linked list Richard Heathfield <rjh@cpax.org.uk> - 2016-05-08 07:53 +0100
Re: trying a linked list Keith Thompson <kst-u@mib.org> - 2016-05-08 14:19 -0700
Re: trying a linked list Manfred <mx2927@gmail.com> - 2016-05-08 18:45 +0200
Re: trying a linked list "Bill Cunningham" <nospam@nspam.invalid> - 2016-05-08 17:21 -0400
Re: trying a linked list "Bill Cunningham" <nospam@nspam.invalid> - 2016-05-08 14:38 -0400
Re: trying a linked list Ben Bacarisse <ben.usenet@bsb.me.uk> - 2016-05-08 20:08 +0100
Re: trying a linked list Ben Bacarisse <ben.usenet@bsb.me.uk> - 2016-05-08 20:26 +0100
Re: trying a linked list "Bill Cunningham" <nospam@nspam.invalid> - 2016-05-08 17:22 -0400
Re: trying a linked list "Bill Cunningham" <nospam@nspam.invalid> - 2016-05-08 15:28 -0400
Re: trying a linked list Ben Bacarisse <ben.usenet@bsb.me.uk> - 2016-05-08 20:36 +0100
Re: trying a linked list "Bill Cunningham" <nospam@nspam.invalid> - 2016-05-08 17:17 -0400
Re: trying a linked list Keith Thompson <kst-u@mib.org> - 2016-05-08 14:56 -0700
Re: trying a linked list "Bill Cunningham" <nospam@nspam.invalid> - 2016-05-08 18:17 -0400
Re: trying a linked list Keith Thompson <kst-u@mib.org> - 2016-05-08 19:31 -0700
Re: trying a linked list "Bill Cunningham" <nospam@nspam.invalid> - 2016-05-09 14:59 -0400
Re: trying a linked list Ben Bacarisse <ben.usenet@bsb.me.uk> - 2016-05-08 23:22 +0100
Re: trying a linked list "Bill Cunningham" <nospam@nspam.invalid> - 2016-05-09 14:46 -0400
Re: trying a linked list Keith Thompson <kst-u@mib.org> - 2016-05-08 14:32 -0700
Re: trying a linked list "Bill Cunningham" <nospam@nspam.invalid> - 2016-05-08 18:05 -0400
Re: trying a linked list Keith Thompson <kst-u@mib.org> - 2016-05-08 14:26 -0700
Re: trying a linked list "Bill Cunningham" <nospam@nspam.invalid> - 2016-05-09 13:50 -0400
Re: trying a linked list "Bill Cunningham" <nospam@nspam.invalid> - 2016-05-09 14:08 -0400
Re: trying a linked list Keith Thompson <kst-u@mib.org> - 2016-05-09 11:38 -0700
Re: trying a linked list "Bill Cunningham" <nospam@nspam.invalid> - 2016-05-09 14:50 -0400
Re: trying a linked list "Bill Cunningham" <nospam@nspam.invalid> - 2016-05-09 14:51 -0400
Re: trying a linked list Keith Thompson <kst-u@mib.org> - 2016-05-09 13:51 -0700
Re: trying a linked list Ken Brody <kenbrody@spamcop.net> - 2016-05-09 17:53 -0400
Re: trying a linked list Keith Thompson <kst-u@mib.org> - 2016-05-09 13:47 -0700
Re: trying a linked list "Osmium" <r124c4u102@comcast.net> - 2016-05-09 15:58 -0500
Re: trying a linked list "Bill Cunningham" <nospam@nspam.invalid> - 2016-05-09 17:13 -0400
Re: trying a linked list Keith Thompson <kst-u@mib.org> - 2016-05-09 14:35 -0700
Re: trying a linked list "Bill Cunningham" <nospam@nspam.invalid> - 2016-05-09 17:40 -0400
Re: trying a linked list "Bill Cunningham" <nospam@nspam.invalid> - 2016-05-09 17:41 -0400
Re: trying a linked list Keith Thompson <kst-u@mib.org> - 2016-05-09 15:10 -0700
Re: trying a linked list "Bill Cunningham" <nospam@nspam.invalid> - 2016-05-09 22:02 -0400
Re: trying a linked list Keith Thompson <kst-u@mib.org> - 2016-05-09 21:17 -0700
Re: trying a linked list "Bill Cunningham" <nospam@nspam.invalid> - 2016-05-09 22:31 -0400
Re: trying a linked list "Bill Cunningham" <nospam@nspam.invalid> - 2016-05-07 20:30 -0400
Re: trying a linked list Keith Thompson <kst-u@mib.org> - 2016-05-07 20:06 -0700
Re: trying a linked list Richard Heathfield <rjh@cpax.org.uk> - 2016-05-08 07:50 +0100
Re: trying a linked list BartC <bc@freeuk.com> - 2016-05-08 10:33 +0100
Re: trying a linked list Richard Heathfield <rjh@cpax.org.uk> - 2016-05-08 10:39 +0100
Re: trying a linked list BartC <bc@freeuk.com> - 2016-05-08 11:14 +0100
Re: trying a linked list Richard Heathfield <rjh@cpax.org.uk> - 2016-05-08 13:34 +0100
Re: trying a linked list BartC <bc@freeuk.com> - 2016-05-08 14:39 +0100
Re: trying a linked list Richard Heathfield <rjh@cpax.org.uk> - 2016-05-08 14:51 +0100
Re: trying a linked list Siri Cruise <chine.bleu@yahoo.com> - 2016-05-08 07:30 -0700
Re: trying a linked list Ben Bacarisse <ben.usenet@bsb.me.uk> - 2016-05-08 10:36 +0100
Re: trying a linked list Malcolm McLean <malcolm.mclean5@btinternet.com> - 2016-05-08 02:49 -0700
Re: trying a linked list Keith Thompson <kst-u@mib.org> - 2016-05-08 14:17 -0700
Re: trying a linked list Malcolm McLean <malcolm.mclean5@btinternet.com> - 2016-05-08 14:36 -0700
Re: trying a linked list Keith Thompson <kst-u@mib.org> - 2016-05-08 14:57 -0700
Re: trying a linked list Malcolm McLean <malcolm.mclean5@btinternet.com> - 2016-05-09 13:28 -0700
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