Question

What is the output of the following C program ?

#include <stdio.h>

void main (void)

{

int shifty;

shifty = 0570;

shifty = shifty >> 4;

shifty = shifty << 6;

printf("The value of shifty is %o \n" shifty);

}

1. The value of shifty is 15c0
2. The value of shifty is 4300
3. The value of shifty is 5700
4. The value of shifty is 2700

Answer 1

Correct Answer - Option 4 : The value of shifty is 2700

The correct answer is option 4.

Initially shifty value is, shifty = 0570.

Here this function represents the a octal number as it starts with 0.

(0570)₈ = (000 101 111 000)₂

shifty = shifty >>4. //Right shift by 4 places.
shifty = (000 000 010 111)₂
shifty = shifty <<6. //Left shift by 6 places:
shifty = (010 111 000 000)₂
         = (2700)₈

Hence the correct answer is The value of shifty is 2700.