malloc and pointers

[pointers]

Hi
i hav a doubt could u pls explain me..............
wt s da sizeof(int*) , sizeof(int**),sizeof(int)
in the following code

int **p;
int *q;
p=(int *)malloc(sizeof(int *))
*p=(int *)malloc(sizeof(int))
**p=12;
q=*p;

Thanks and regards.

[andor]

sizeof(int*) and sizeof(int**) will be the same and it is the size of pointer. sizeof(int) is the size of int .

[Salem]

There's nothing which states all pointers must be the same size
http://c-faq.com/null/machexamp.html