Find out IEEE 754 format representation of a number

The below program shows the floating point representation of a number. It is implemented using c.

Output :

Code :

#include<stdio.h>
int binary(int n, int i)
{
    int k;
    for (i--; i >= 0; i--)
   {
      k = n >> i;
      if (k & 1)
          printf("1");
      else
         printf("0");
    }
}
typedef union
{
      float f;
      struct
      {
            unsigned int mantissa : 23;
            unsigned int exponent : 8;
            unsigned int sign : 1;
       } field;
} myfloat;

int main()
{
           myfloat var;
           printf("Enter any float number: ");
           scanf("%f",&var.f);
           printf("%d ",var.field.sign);
           binary(var.field.exponent, 8);
           printf(" ");
           binary(var.field.mantissa, 23);
           printf("\n");
           return 0;
}