Preprocessors Easy Questions and Answers

What is the output of this C code?

#include <stdio.h>
    #define calc(n, m) n / m + n
    int main()
    {
        int a = -16, b = 13;
        printf("%d ", calc(a + b, 13));
        printf("%d\n", calc(-13, 13));
        return 0;
    }

Correct Option: D

-18 -14

What will be the output of the following C code?

#include <stdio.h>
    void fun();
    int main()
    {
        #define max 15
        fun();
        return 0;
    }
    void fun()
    {
        printf("%d\n", max * 15);
    }

Correct Option: D

225

What will be the output of the following C code?

#include <stdio.h>
    void fun();
    int main()
    {
        #define calc(p, q) p / q + p
        fun();
    }
    void fun()
    {
        printf("%d\n", calc(-10, 10));
    }

Correct Option: A

-11

What will be the output of the following C code?

#include <stdio.h>
    #define calc(p, q) p / q + p
    int main()
    {
        int a = -10, b = 5;
        printf("%d\n", calc(a + b, 5));
        return 0;
    }

Correct Option: B

-14

What will be the output of the following C code?

#include <stdio.h>
    #define fun(p, q) #p #q
    int main()
    {
        printf("%s\n", fun(a, b));
        return 0;
    }

Preprocessors

Preprocessors

C Programming

Correct Option: D

Correct Option: D

Correct Option: A

Correct Option: B

Correct Option: C