Question

In "C" Language

(Using Unions) Create union integer with members char c, short s, int i and long b. Write a program that inputs values of type char, short, int and long and stores the values in union variables of type union integer. Each union variable should be printed as a char, a short, an int and a long. Do the values always print correctly:? Sample input/output. To print in hexadecimal, use %x as the formatter. Input must be same for all cases for comparison Enter data for type char:8 Breakdown of the element in the union char 8 short 56 int 56 long 56 Breakdown in hex char 38 short 38 int 38 long 38 Enter data for type short:8 Breakdown of the element in the union char short 8 int 8 long 8 Breakdown in hex char 8 short 8 int 8 long 8 Enter data for type int:

Answer 1

Given below is the code for the question.
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#include
union integer
{
char c;
short s;
int i;
long b;
};

void display(union integer u)
{
printf("\nBreakdown of the element in the union\n");
printf("char %c\n",u.c);
printf("short %hd \n", u.s);
printf("int %d \n", u.i);
printf("long %ld \n", u.b);
  
printf("\n\nBreakdown in hex\n");
printf("char %x\n",u.c);
printf("short %x \n", u.s);
printf("int %x \n", u.i);
printf("long %lx \n\n", u.b);

}
int main()
{
union integer u1 = {0}, u2 = {0}, u3 = {0}, u4 = {0};
  
printf("Enter data for type char: ");
scanf("%c", &u1.c);
display(u1);
  
printf("Enter data for type short: ");
scanf("%hd", &u2.s);
display(u2);
  
printf("Enter data for type int: ");
scanf("%d", &u3.i);
display(u3);
  
printf("Enter data for type long: ");
scanf("%ld", &u4.b);
display(u4);
  
}

output
======
Enter data for type char: 8

Breakdown of the element in the union
char 8
short 56
int 56
long 56

Breakdown in hex
char 38
short 38
int 38
long 38

Enter data for type short: 8

Breakdown of the element in the union
char
short 8
int 8
long 8

Breakdown in hex
char 8
short 8
int 8
long 8

Enter data for type int: 8

Breakdown of the element in the union
char
short 8
int 8
long 8

Breakdown in hex
char 8
short 8
int 8
long 8

Enter data for type long: 8

Breakdown of the element in the union
char
short 8
int 8
long 8

Breakdown in hex
char 8
short 8
int 8
long 8

Answer 2

// Monjur Alam
// Create union integer with members char c, short s, int i and long b.

#include <stdio.h>

union integer {
    char c;
    short s;
    int i;
    long b;
};

int main(){    
    union integer test1, test2, test3, test4;
    
    printf("Enter a char: ");
    scanf("%c", &test1.c);
    fflush(stdin);
    
    printf("Enter a short: ");
    scanf("%hd", &test2.s);
    fflush(stdin);
        
    printf("Enter an integer: ");
    scanf("%d", &test3.i);
    fflush(stdin);
        
    printf("Enter a long: ");
    scanf("%ld", &test4.b);
    fflush(stdin);
    
    printf("\n\ntest1.c as a char: %c\n", test1.c);    
    printf("test1.c as a short: %hd\n", test1.c);    
    printf("test1.c as an int: %d\n", test1.c);    
    printf("test1.c as a long: %ld\n", test1.c);
    
    printf("\n\ntest2.s as a char: %c\n", test2.s);    
    printf("test2.s as a short: %hd\n", test2.s);    
    printf("test2.s as an int: %d\n", test2.s);    
    printf("test2.s as a long: %ld\n", test2.s);
    
    printf("\n\ntest3.i as a char: %c\n", test3.i);    
    printf("test3.i as a short: %hd\n", test3.i);    
    printf("test3.i as an int: %d\n", test3.i);    
    printf("test3.i as a long: %ld\n", test3.i);
    
    printf("\n\ntest4.b as a char: %c\n", test4.b);    
    printf("test4.b as a short: %hd\n", test4.b);    
    printf("test4.b as an int: %d\n", test4.b);    
    printf("test4.b as a long: %ld\n", test4.b);  
    return 0;
}