Assuming that arr is an array identifier, the statement sum += *arr;
A) is illegal in C++.
B) will always result in a compiler error.
C) adds the value stored in arr[0] to sum.
D) adds the address of the pointer arr to sum.
E) None of the above

Question

Quizplus · Accepted Answer

The statement dereferences the pointer arr using the * operator and adds the value stored in arr[0] to the variable sum. Therefore, choice C is correct. Option A is incorrect because it's not illegal in C++. Option B is also incorrect because there is no syntax error. Option D is incorrect because it attempt to add an address to sum, which is meaningless. Therefore, the answer is C.

Assuming That Arr Is an Array Identifier, the Statement Sum