Comment on the following?
const int *ptr;

A. We cannot change the value pointed by ptr.

B. We cannot change the pointer ptr itself.

C. Both of the above

D. We can change the pointer as well as the value pointed by it.

Answer: Option A

Solution(By Examveda Team)

int * : pointer to int
int const * : pointer to const int
int * const : const pointer to int
int const * const : const pointer to const int

Now the first const can be on either side of the type so:

const int * == int const *
const int * const == int const * const

So the above declaration is pointer to const int. Which means,we cannot change the value pointed by ptr.