Size of pointer of integer type vs Size of int*

Question

I started reading Pointers and while tinkering with them. I stumbled upon this :

#include
int main()
{
    int *p,a;
    a=sizeof(*p);
    pri         


        

Answer 1

*p and int* are not the same things! First one is a dereferenced pointer (i.e. int which is 4 bytes wide) and the second one is a pointer (8 bytes wide in your case since it's a 64 bit machine).