A function that modifies an array by using pointer arithmetic such as ++ptr to process every value should have a parameter that is:
A) A nonconstant pointer to nonconstant data.
B) A nonconstant pointer to constant data.
C) A constant pointer to nonconstant data.
D) A constant pointer to constant data.

Question

Quizplus · Accepted Answer

Since the function is modifying the array, it needs to have access to non-constant data. Similarly, since it is using pointer arithmetic to process every value, it needs to be able to modify the pointer as well. Therefore, a non-constant pointer to non-constant data is the best choice for this type of function.

A Function That Modifies an Array by Using Pointer Arithmetic