C | Operators | Question 26

#include <stdio.h>
int main()
{
   int y = 0;
   int x = (~y == 1);
   printf("%d", x);
   return 0;
}

(A) 0
(B) 1
(C) A bog negative Number
(D) Compiler Error


Answer: (A)

Explanation: The important thing to note here is ~ is a bitwise not operator. So the value of ~0 would be all 1s in binary representation which means decimal value of ~0 is not 1. Therefore the result of comparison operator becomes 0.

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