C Programming - Structures, Unions, Enums - Discussion

Discussion Forum : Structures, Unions, Enums - Find Output of Program (Q.No. 7)

Structures, Unions, Enums

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;
}

12, 12, 12

112, 1, 12

32, 1, 12

-64, 1, 12

Answer: Option

Explanation:

No answer description is available. Let's discuss.

Discussion:

58 comments Page 1 of 6.

Mukta said: 5 years ago

Thank you everyone for explaining the answer.

Swaroop said: 6 years ago

Thanks @Vedashree.

Sanket said: 6 years ago

Thanks @Vedhashree.

Laxman said: 7 years ago

In function data passing, expressions are evaluated from right to left,but printing results from left to right, so in the given problem first (i^j) evaluated,

i=0100
j=1000
i^j=1100 equivalent decimal is 12.

Then, next expression is (i|j&j|i)
the expression having bitwise AND and OR, in this bitwise AND having higher priority than bit wise OR, so grouping made as i|(j&j)|i, in this first (j&j) evaluated.

j=1000
j=1000
j&j=1000.

The remaining expression made as i|(1000)|i; here bitwise OR having two times that means same priority now we have to consider associativity. For bitwise operators left to right.

i=0100
1000
res=1100
1000

Final res=1100 decimal value 12.
third also same as the second expression so the result is 12.

Now printing the results in 12 12 12.

(12)

Ravi said: 7 years ago

Good explanation, Thanks. @Ramadas.

(1)

Harshada said: 7 years ago

Not understood. Please help me.

Ramya said: 8 years ago

Thanks @Vedhashree.

Manoja V. said: 8 years ago

Thanks @Vedhashree.

Anchan said: 8 years ago

Thanks @Vedhashree.

Chandru said: 8 years ago

Thanks @Vedhashree.

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