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pointer value

JD
int (*a)[10];
a++;
what will be the value of a?

Nov 15 '05 #1
2 1073
JD wrote:
int (*a)[10];
a++;
what will be the value of a?


As always with ++ on a pointer:
(unsigned char *)a + 1*sizeof *a

As a points to array 10 of int, sizeof *a == 10 * sizeof (int).

As you have not initialised the pointer, the behaviour is
undefined.

Cheers
Michael
--
E-Mail: Mine is an /at/ gmx /dot/ de address.
Nov 15 '05 #2
JD wrote on 30/07/05 :
int (*a)[10];
a++;
what will be the value of a?


a + 1

--
Emmanuel
The C-FAQ: http://www.eskimo.com/~scs/C-faq/faq.html
The C-library: http://www.dinkumware.com/refxc.html

"Clearly your code does not meet the original spec."
"You are sentenced to 30 lashes with a wet noodle."
-- Jerry Coffin in a.l.c.c++
Nov 15 '05 #3

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