C Programming - C Preprocessor - Discussion

Discussion Forum : C Preprocessor - Find Output of Program (Q.No. 14)

C Preprocessor

14.

What will be the output of the program?

#include<stdio.h>
#define PRINT(i) printf("%d,",i)

int main()
{
    int x=2, y=3, z=4;
    PRINT(x);
    PRINT(y);
    PRINT(z);
    return 0;
}

2, 3, 4,

2, 2, 2,

3, 3, 3,

4, 4, 4,

Answer: Option

Explanation:

The macro PRINT(i) print("%d,", i); prints the given variable value in an integer format.

Step 1: int x=2, y=3, z=4; The variable x, y, z are declared as an integer type and initialized to 2, 3, 4 respectively.

Step 2: PRINT(x); becomes printf("%d,",x). Hence it prints '2'.

Step 3: PRINT(y); becomes printf("%d,",y). Hence it prints '3'.

Step 4: PRINT(z); becomes printf("%d,",z). Hence it prints '4'.

Hence the output of the program is 2, 3, 4.

Discussion:

2 comments Page 1 of 1.

Vinoth said: 1 decade ago

What is mean by comma inside field specification?

Wikiok said: 1 decade ago

Nothing. It is just printed out as a simple character.

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