Practice Structures, Unions, Enums – What is the output of the following program ?
#include
void main()
{
struct xx
{
int x=3;
char name[]="hello";
};
struct xx *s=malloc(sizeof(struct xx));
printf("%d",s->x);
printf("%s",s->name);
}
Practice Structures, Unions, Enums – What is the output of the following problem ?
#include
struct {
int x;
int y;
union {
int id_no;
char *name;
}b;
}s,*st;
int main()
{
st = &s;
st->x=10;
st->b.id_no = 101;
printf("%d %d
",s.x,s.b.id_no);
return 0;
}
Practice Structures, Unions, Enums – What will be the size of these structures?
#include
struct S1 {
char c;
int i[2];
double v;
} SA1;
struct S2 {
double x;
int i[2];
char c;
} SA2;
int main()
{
printf("
sizeof S1 %d : Sizeof S2 %d ",sizeof(SA1),sizeof(SA2));
return 0;
}
Note:char takes 1 byte, int takes 4 bytes, double takes 8 bytes
Practice Structures, Unions, Enums – What is the output of this C code?
#include
typedef struct p *q;
struct p
{
int x; char y; q ptr;
};
int main()
{
struct p p = {1, 2, &p};
printf("%d
", p.ptr->ptr->x);
return 0;
}
Which of the following uses structure?
Practice Structures, Unions, Enums – Which of the following uses structure?
Consider the following declaration
enum color {black= -1,
Practice Structures, Unions, Enums – Consider the following declaration
enum color {black= -1, blue, green};
This represents
Most appropriate sentence to describe unions is
Practice Structures, Unions, Enums – Most appropriate sentence to describe unions is
Practice Structures, Unions, Enums – The below declaration
union id {
char color [12];
int size;
} tshirt, pant;
denotes shirt and pant are variable of type id and
Consider the following declaration
Practice Structures, Unions, Enums – Consider the following declaration
struct list {
int x;
struct list *next;
)*head;
The statement head.x = 100
What is the output of the following program ?
Practice Structures, Unions, Enums – What is the output of the following program ?
#include
void main()
{
struct xx
{
int x=3;
char name[]="hello";
};
struct xx *s=malloc(sizeof(struct xx));
printf("%d",s->x);
printf("%s",s->name);
}
What is the output of the following problem ?
Practice Structures, Unions, Enums – What is the output of the following problem ?
#include
struct {
int x;
int y;
union {
int id_no;
char *name;
}b;
}s,*st;
int main()
{
st = &s;
st->x=10;
st->b.id_no = 101;
printf("%d %d
",s.x,s.b.id_no);
return 0;
}
What is the output of the following program ?
Practice Structures, Unions, Enums – What is the output of the following program ?
#include
int main() {
union {
int a;
int b;
int c;
} u,v;
u.a = 10;
u.b = 20;
printf("%d %d
",u.a,u.b);
return 0;
}
What will be output of the following “c” code?
Practice Structures, Unions, Enums – What will be output of the following “c” code?
#include
enum color{BLACK, BLUR, GREEN};
void main()
{
printf("%d %d %d", BLACK, BLUR, GREEN);
}
How do you modify the below structure to have less size in view of byt
Practice Structures, Unions, Enums – How do you modify the below structure to have less size in view of byte padding?
typedef struct emp
{
int emp_code;
char* emp_name;
char grade;
double salary;
char gender;
struct emp* link;
}employee;
What is the output of the following program ?
Practice Structures, Unions, Enums – What is the output of the following program ?
#include
void main()
{
struct xx
{
int x=3;
char name[]="hello";
};
struct xx *s=malloc(sizeof(struct xx));
printf("%d",s->x);
printf("%s",s->name);
}
