Structure and Union
practice.

What will be the output of the following C code?

#include <stdio.h>
struct point
{
    int x;
    int y;
};
void foo(struct point*);
int main()
{
    struct point p1 = {1, 2};
    foo(&p1);
}
void foo(struct point *p)
{
    printf("%d\n", *p.x++);
}

What will be the output of the following C code?

#include <stdio.h>
struct p
{
    int x;
    char y;
    struct p *ptr;
};
int main()
{
    struct p p = {1, 2, &p};
    printf("%d\n", p.ptr->x);
    return 0;
}

What will be the output of the following C code?

#include <stdio.h>
struct student
{
    char *c;
};
void main()
{
    struct student m;
    struct student *s = &m;
    s->c = "hello";
    printf("%s", s->c);
}

Comment on the output of the following C code.

#include <stdio.h>
struct temp
{
    int a;
    int b;
    int c;
};
main()
{
    struct temp p[] = {{1, 2, 3}, {4, 5, 6}, {7, 8, 9}};
}

Which of the following operation is illegal in structures?

The correct syntax to access the member of the ith structure in the array of structures is?

Assuming: struct temp
    {
        int b;
    }s[50];

What will be the output of the following C code?

#include <stdio.h>
struct p
{
    int x;
    char y;
};
int main()
{
    struct p p1[] = {1, 92, 3, 94, 5, 96};
    struct p *ptr1 = p1;
    int x = (sizeof(p1) / sizeof(ptr1));
    if (x == 1)
        printf("%d\n", ptr1->x);
    else
        printf("false\n");
}

What will be the output of the following C code?

#include <stdio.h>
struct student
{
    char *c;
    struct student *point;
};
void main()
{
    struct student s;
    struct student m;
    m.point = s;
    (m.point)->c = "hey";
    printf("%s", s.c);
}

What will be the output of the following C code?

#include <stdio.h>
union stu
{
    int ival;
    float fval;
};
void main()
{
    union stu r;
    r.ival = 5;
    printf("%d", r.ival);
}

What will be the output of the following C code?

#include <stdio.h>
union
{
    int x;
    char y;
}p;
int main()
{
    p.y = 60;
    printf("%d\n", sizeof(p));
}

What will be the output of the following C code?

#include <stdio.h>
struct student
{
    char *c;
    struct student *point;
};
void main()
{
    struct student s;
    struct student *m = &s;
    printf("%d", sizeof(student));
}

What will be the output of the following C code?

#include <stdio.h>
int (*(x()))[2];
typedef int (*(*ptr)())[2] ptrfoo;
int main()
{
    ptrfoo ptr1;
    ptr1 = x;
    ptr1();
    return 0;
}
int (*(x()))[2]
{
    int (*ary)[2] = malloc(sizeof*ary);
    return &ary;
}

What will be the output of the following C code?

#include <stdio.h>
struct point
{
    int x;
    int y;
};
void foo(struct point*);
int main()
{
    struct point p1 = {1, 2};
    foo(&p1);
}
void foo(struct point *p)
{
    printf("%d\n", *p->x++);
}

What will be the output of the following C code?

#include <stdio.h>
struct student
{
    char *c;
    struct student point;
};
void main()
{
    struct student s;
    s.c = "hello";
    printf("%s", s.c);
}

What will be the output of the following C code?

#include <stdio.h>
struct p
{
    unsigned int x : 1;
    unsigned int y : 1;
};
int main()
{
    struct p p;
    p.x = 1;
    p.y = 2;
    printf("%d\n", p.y);
}

Members of a union are accessed as . . . . . . . .

Which option should be selected to work the following C expression?

string p = "HELLO";

What will be the output of the following C code?

#include <stdio.h>
struct p
{
   int x;
   int y;
};
int main()
{
   struct p p1[] = {1, 92, 3, 94, 5, 96};
   struct p *ptr1 = p1;
   int x = (sizeof(p1) / 5);
   if (x == 3)
       printf("%d %d\n", ptr1->x, (ptr1 + x - 1)->x);
   else
       printf("false\n");
}

Which of the following data types are accepted while declaring bit-fields?

What will be the output of the following C code?

#include <stdio.h>
struct student
{
    char *name;
};
struct student fun(void)
{
    struct student s;
    s.name = "alan";
    return s;
}
void main()
{
    struct student m = fun();
    s.name = "turing";
    printf("%s", m.name);
}