Function MCQs

Automatic variables are initialized to . . . . . . . .

What will be the output of the following C code?

#include <stdio.h>
#define MIN 0
#if defined(MIN) + defined(MAX)
#define MAX 10
#endif
int main()
{
    printf("%d %d\n", MAX, MIN);
    return 0;
}

Functions can return enumeration constants in C?

What will be the output of the following C code?

#include <stdio.h>
int foo(int, int);
#define foo(x, y) x / y + x
int main()
{
   int i = -6, j = 3;
   printf("%d ",foo(i + j, 3));
   #undef foo
   printf("%d\n",foo(i + j, 3));
}
int foo(int x, int y)
{
   return x / y + x;
}

What will be the output of the following C code?

#include <stdio.h>
int x;
void main()
{
    m();
    printf("%d", x);
}
void m()
{
    x = 4;
}

What will be the output of the following C code?

#include <stdio.h>
int foo();
int main()
{
    int i = foo();
}
foo()
{
    printf("2 ");
    return 2;
}

Which of following is not accepted in C?

What will be the output of the following C code?

#include <stdio.h>
int *m();
void main()
{
    int k = m();
    printf("%d", k);
}
int *m()
{
    int a[2] = {5, 8};
    return a;
}

Global variables are . . . . . . . .