C | Misc | Question 6

Assume the following C variable declaration 

C

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

Of the following expressions

I.   A [2]
II.  A [2][3]
III. B [1]
IV.  B [2][3] 

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

(A)

I, II and IV only

(B)

II, III and IV only

(C)

II and IV only

(D)

IV only

Answer: (A)

Explanation:

A is an array of pointers to int, and B is a 2-D array.

• A[2]= can take a pointer
• A[2][3]= can take an int
• B[1]=B[1] is the base address of the array and it cannot be changed as array in C is a constant pointer.
• B[2][3]= can take an integer

So, option (A) is the answer.

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