INTERNAL REPRESENTATION OF FLOATING POINT NUMBERS

QUES:-
Observe and verify the internal representation of floating point numbers.
ANS:-
/******************************************************************************/
#include<conio.h>
#include<stdio.h>

void decimal_to_binary(unsigned char);

union u
{
    float f;
    char c;
};

int main()
{
    int i;
    char*ptr;
    union u a;

    clrscr();
    printf("ENTER THE FLOATING POINT NUMBER : \n");
    scanf("%f",&a.f);

    ptr=&a.c+sizeof(float);

    for(i=0;i<sizeof(float);i++)
    {
        ptr--;
        decimal_to_binary(*ptr);
    }

    getch();
    return 0;
}

void decimal_to_binary(unsigned char n)
{
    int arr[8];
    int i;
    //printf("n = %u  ",n);

    for(i=7;i>=0;i--)
    {
        if(n%2==0)
            arr[i]=0;
        else
            arr[i]=1;
        n/=2;
    }

    for(i=0;i<8;i++)
        printf("%d",arr[i]);
    printf(" ");
}
/******************************************************************************/