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| From | Keith Thompson <kst-u@mib.org> |
| Newsgroups | comp.lang.c |
| Subject | Re: extern array as a pointer |
| Date | Tue, 12 Jul 2016 09:28:58 -0700 |
| Organization | None to speak of |
| Lines | 32 |
| Message-ID | <lnfureizw5.fsf@kst-u.example.com> (permalink) |
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BartC <bc@freeuk.com> writes:
> On 12/07/2016 11:06, sinbad wrote:
>> why does the following program crash at line# 20.
>> Is it even legal to define array as an integer
>> pointer while infact it's original definition is
>> single dimensional array or five elements.
[...]
>> 5 int array[5];
[...]
>> 16 extern int *array;
[...]
>
> You have a normal array in one module which is defined as a pointer to
> array in another, assuming arr was meant to be array.
No, it's declared (not defined) as a pointer to int, not a pointer to an
array. A pointer to an array would be something like
extern int (*a)[];
or
extern int (*a)[5];
> Try writing:
>
> extern int array[];
Yup.
--
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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extern array as a pointer sinbad <sinbad.sinbad@gmail.com> - 2016-07-12 03:06 -0700
Re: extern array as a pointer BartC <bc@freeuk.com> - 2016-07-12 11:45 +0100
Re: extern array as a pointer Frank Tetzel <s1445051@mail.zih.tu-dresden.de> - 2016-07-12 13:58 +0200
Re: extern array as a pointer Ben Bacarisse <ben.usenet@bsb.me.uk> - 2016-07-12 13:33 +0100
Re: extern array as a pointer Keith Thompson <kst-u@mib.org> - 2016-07-12 09:30 -0700
Re: extern array as a pointer James Kuyper <jameskuyper@verizon.net> - 2016-07-12 12:52 -0400
Re: extern array as a pointer Keith Thompson <kst-u@mib.org> - 2016-07-12 11:30 -0700
Re: extern array as a pointer supercat@casperkitty.com - 2016-07-12 11:51 -0700
Re: extern array as a pointer supercat@casperkitty.com - 2016-07-12 10:55 -0700
Re: extern array as a pointer Keith Thompson <kst-u@mib.org> - 2016-07-12 09:28 -0700
Re: extern array as a pointer Nobody <nobody@nowhere.invalid> - 2016-07-12 13:26 +0100
Re: extern array as a pointer Keith Thompson <kst-u@mib.org> - 2016-07-12 09:26 -0700
Re: extern array as a pointer Richard Heathfield <rjh@cpax.org.uk> - 2016-07-12 13:46 +0100
Re: extern array as a pointer James Kuyper <jameskuyper@verizon.net> - 2016-07-12 12:33 -0400
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