C Programming - Declarations and Initializations

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Exercise

"Love is like a war, Easy to begin Hard to end."

- (Proverb)

What is the output of the program given below ?

#include<stdio.h>
int main()
{
    enum status { pass, fail, atkt};
    enum status stud1, stud2, stud3;
    stud1 = pass;
    stud2 = atkt;
    stud3 = fail;
    printf("%d, %d, %d\n", stud1, stud2, stud3);
    return 0;
}

A.	0, 1, 2	B.	1, 2, 3
C.	0, 2, 1	D.	1, 3, 2

What will be the output of the program in 16 bit platform (Turbo C under DOS)?

#include<stdio.h>
int main()
{
    extern int i;
    i = 20;
    printf("%d\n", sizeof(i));
    return 0;
}

A.	2
B.	4
C.	vary from compiler
D.	Linker Error : Undefined symbol 'i'

What is the output of the program?

#include<stdio.h>
int main()
{
    extern int a;
    printf("%d\n", a);
    return 0;
}
int a=20;

A.	20	B.	0
C.	Garbage Value	D.	Error

What is the output of the program in Turbo C (in DOS 16-bit OS)?

#include<stdio.h>
int main()
{
    char *s1;
    char far *s2;
    char huge *s3;
    printf("%d, %d, %d\n", sizeof(s1), sizeof(s2), sizeof(s3));
    return 0;
}

A.	2, 4, 6	B.	4, 4, 2
C.	2, 4, 4	D.	2, 2, 2

What is the output of the program

#include<stdio.h>
int main()
{
    struct emp
    {
        char name[20];
        int age;
        float sal;
    };
    struct emp e = {"Tiger"};
    printf("%d, %f\n", e.age, e.sal);
    return 0;
}

A.	0, 0.000000	B.	Garbage values
C.	Error	D.	None of above