Programming-for-Output-Problems

Question 21

Consider the following C declaration
struct
{
   short s[5];
   union
   {
         float y;
         long z;
   }u;
}t;
Assume that the objects of the type short, float and long occupy 2 bytes, 4 bytes and 8 bytes, respectively. The memory requirement for variable t, ignoring alignment consideration, is

A	22 bytes
B	18 bytes
C	14 bytes
D	10 bytes

Programming-for-Output-ProblemsStructureISRO CS 2015Video-Explanation

Question 21 Explanation:

short [5] = 5×2 = 10
max[float, long] = max [4, 8] = 8
Total = short[5] + max[float,long] = 10+8 = 18

Correct Answer: B

Question 21 Explanation:

short [5] = 5×2 = 10
max[float, long] = max [4, 8] = 8
Total = short[5] + max[float,long] = 10+8 = 18