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| From | bilsch <king621@comcast.net> |
|---|---|
| Newsgroups | comp.lang.c |
| Subject | what is data type 'int *' ? |
| Date | 2015-02-04 23:45 +0000 |
| Organization | A noiseless patient Spider |
| Message-ID | <mauauc$p5v$1@dont-email.me> (permalink) |
A Sams book on C programming has a program that demonstrates how pointers
work, similar to the listing below. I'm using Ubuntu and GNU gcc
compiler. For the last two printf lines the gcc compiler gives the error:
expects argument of type ‘int’, but argument 2 has type ‘int *’
Presumably, the compiler used with the book does not produce this error.
My question is what format specifier (%i) should I use for
type 'int *' ? I dont know of a format specifier for type ‘int *’.
Also, if the compiler used with the book doesnt produce the error, why is
gcc so finicky.
/* pointer.c */
#include <stdio.h>
/* declare and initialize variable of type int */
int var=1;
/* declare a pointer to int */
int *ptr;
int main()
{
ptr=&var;
/* access directly and indirectly */
printf("\ndirect access var= %i",var);
printf("\nindirect access var= %i",*ptr);
/* display the address of var two ways */
printf("\nthe address of var is %i\n",ptr);
printf("\nthe address of var is %i\n",&var);
}
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what is data type 'int *' ? bilsch <king621@comcast.net> - 2015-02-04 23:45 +0000
Re: what is data type 'int *' ? Ben Bacarisse <ben.usenet@bsb.me.uk> - 2015-02-05 00:09 +0000
Re: what is data type 'int *' ? glen herrmannsfeldt <gah@ugcs.caltech.edu> - 2015-02-05 01:24 +0000
Re: what is data type 'int *' ? James Kuyper <jameskuyper@verizon.net> - 2015-02-05 07:00 -0500
Re: what is data type 'int *' ? glen herrmannsfeldt <gah@ugcs.caltech.edu> - 2015-02-05 14:09 +0000
Re: what is data type 'int *' ? Robert Wessel <robertwessel2@yahoo.com> - 2015-02-05 13:08 -0600
Re: what is data type 'int *' ? glen herrmannsfeldt <gah@ugcs.caltech.edu> - 2015-02-06 00:33 +0000
Re: what is data type 'int *' ? Robert Wessel <robertwessel2@yahoo.com> - 2015-02-05 19:30 -0600
Re: what is data type 'int *' ? glen herrmannsfeldt <gah@ugcs.caltech.edu> - 2015-02-06 10:17 +0000
Re: what is data type 'int *' ? Malcolm McLean <malcolm.mclean5@btinternet.com> - 2015-02-07 13:21 -0800
Re: what is data type 'int *' ? Lew Pitcher <lew.pitcher@digitalfreehold.ca> - 2015-02-04 19:47 -0500
Re: what is data type 'int *' ? bilsch <king621@comcast.net> - 2015-02-05 09:40 +0000
Re: what is data type 'int *' ? Richard Heathfield <rjh@cpax.org.uk> - 2015-02-05 09:51 +0000
Re: what is data type 'int *' ? Keith Thompson <kst-u@mib.org> - 2015-02-05 08:04 -0800
Re: what is data type 'int *' ? glen herrmannsfeldt <gah@ugcs.caltech.edu> - 2015-02-06 00:42 +0000
Re: what is data type 'int *' ? Keith Thompson <kst-u@mib.org> - 2015-02-05 19:09 -0800
Re: what is data type 'int *' ? Kaz Kylheku <kaz@kylheku.com> - 2015-02-05 01:17 +0000
Re: what is data type 'int *' ? Richard Heathfield <rjh@cpax.org.uk> - 2015-02-05 03:04 +0000
Re: what is data type 'int *' ? Richard Heathfield <rjh@cpax.org.uk> - 2015-02-05 03:06 +0000
Re: what is data type 'int *' ? Richard Heathfield <rjh@cpax.org.uk> - 2015-02-05 03:06 +0000
Re: what is data type 'int *' ? Ben Bacarisse <ben.usenet@bsb.me.uk> - 2015-02-05 10:20 +0000
Re: what is data type 'int *' ? Richard Heathfield <rjh@cpax.org.uk> - 2015-02-05 10:47 +0000
Re: what is data type 'int *' ? Ben Bacarisse <ben.usenet@bsb.me.uk> - 2015-02-05 12:18 +0000
Re: what is data type 'int *' ? Richard Heathfield <rjh@cpax.org.uk> - 2015-02-05 12:40 +0000
Re: what is data type 'int *' ? Keith Thompson <kst-u@mib.org> - 2015-02-05 08:24 -0800
Re: what is data type 'int *' ? James Kuyper <jameskuyper@verizon.net> - 2015-02-05 11:42 -0500
Re: what is data type 'int *' ? Ben Bacarisse <ben.usenet@bsb.me.uk> - 2015-02-05 17:13 +0000
Re: what is data type 'int *' ? Keith Thompson <kst-u@mib.org> - 2015-02-05 08:43 -0800
Re: what is data type 'int *' ? bilsch <king621@comcast.net> - 2015-02-05 09:45 +0000
THANKS FOR THE INFO bilsch <king621@comcast.net> - 2015-02-05 09:47 +0000
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