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C programming

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3 3 votes

What will be the output of the program ?

#include<stdio.h>

int main()
{
    int i=4, j=8;
    printf("%d, %d, %d\n", i|j&j|i, i|j&j|i, i^j);
    return 0;
}
  A.
12, 12, 12
  B.
112, 1, 12
  C.
32, 1, 12
  D.
-64, 1, 12

3 Answers

4 4 votes

It is actually a compiler dependent question as it is not specified in which order the arguments of printf() will be evaluated..According to CDECL convention which most of the compilers use , arguments are evaluated right to left..

So i XOR j will be found first which is given by : 4 XOR 8  =  12

Then  i |  j & j | i , so here AND is performed first..We know x AND x = x only.

So  i | j | i   =  4 OR 8 OR 4   =   12

Similarly the last argument from right which is same as middle one is also calculated as 12..

Hence A) should be the correct option,,

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