Pointers to Pointers
Since a pointer is just a number which represents an actual memory address of some variable, we can assign it the address of a variable which is another pointer. However, the syntax changes: int **ptr2ptr; int *ptr; int i = 1; ptr2ptr = &ptr; *ptr2ptr = &i; /* or: */ *(*ptr2ptr) = i; /* the latter causes *ptr = 1 */
We will study pointers later !!! This was just an introduction !