Question

Assume the following C variable declaration

int *A[10], B[10][10];

Of the following expressions

1. A[2]
2. A[2] [3]
3. B[1]
4. B[2] [3]

Which will not give compile-time errors if used as left hand side of assignment statements in a C program?

• A. 4 only
• B. 1, 2 and 4 only
• C. 2 and 4 only
• D. 2, 3 and 4 only

Answer 1

The correct option is B 1, 2 and 4 only

Here int *A[10] is an array of 10 pointers.
Which can be A[2] [3] as its left hand side.
It can also be A[2] as its left hand side and also B[2] [3] can obviously be used as left hand side as it is given in declaration of B[10] [10] only, but B[1] can not be used because it is declared as 2-dimensional array.