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Comment on the following?const int *ptr;
- AWe cannot change the value pointed by ptr.
- BWe cannot change the pointer ptr itself.
- CBoth of the above
- DWe can change the pointer as well as the value pointed by it.
Correct answer: A
Discussion 1
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CCommunity
We cannot change the value pointed by ptr.
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.
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.