The concept of pointers can be further extended. Pointer we know is a variable which contains address of another variable. Now this variable itself could be another pointer. These we now have a pointer which contains another pointer’s address. The following example should make this point clear.
In this program i is an integer type value, j is a pointer to this variable and k is another pointer
type variable pointing to j.
All the addresses are assumed addresses K is pointing to the variable j. These K is a pointer
to pointer. In principle, there could be a pointer to a pointer’s pointer, of a pointer to a pointer to a pointer’s pointer. There is no limit on how far can we go on extending this definition.
In this program i is an integer type value, j is a pointer to this variable and k is another pointer
type variable pointing to j.
All the addresses are assumed addresses K is pointing to the variable j. These K is a pointer
to pointer. In principle, there could be a pointer to a pointer’s pointer, of a pointer to a pointer to a pointer’s pointer. There is no limit on how far can we go on extending this definition.