Point out the error in the following program. #include<stdio.h> #include<stdarg.

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Options
A. Error: fun() needs return type
B. Error: ptr Lvalue required
C. Error: Invalid declaration of fun(...)
D. No error

Correct Answer

Error: Invalid declaration of fun(...)

Explanation

There is no fixed argument in the definition fun()

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5. The preprocessor can trap simple errors like missing declarations, nested comments or mismatch of braces.
Options
A. True
B. False

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10. What will be the output of the program?

#include<stdio.h>
#include<stdlib.h>

int main()
{
    union test
    {
        int i;
        float f;
        char c;
    };
    union test *t;
    t = (union test *)malloc(sizeof(union test));
    t->f = 10.10f;
    printf("%f", t->f);
    return 0;
}

Options
A. 10
B. Garbage value
C. 10.100000
D. Error

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Point out the error in the following program.
#include<stdio.h> #include<stdarg.h> fun(...); int main() { fun(3, 7, -11.2, 0.66); return 0; } fun(...) { va_list ptr; int num; va_start(ptr, n); num = va_arg(ptr, int); printf("%d", num); }

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Point out the error in the following program. #include<stdio.h> #include<stdarg.h> fun(...); int main() { fun(3, 7, -11.2, 0.66); return 0; } fun(...) { va_list ptr; int num; va_start(ptr, n); num = va_arg(ptr, int); printf("%d", num); }

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Point out the error in the following program.
#include<stdio.h> #include<stdarg.h> fun(...); int main() { fun(3, 7, -11.2, 0.66); return 0; } fun(...) { va_list ptr; int num; va_start(ptr, n); num = va_arg(ptr, int); printf("%d", num); }