#include<stdio.h>
#include<float.h>

void print_float(float*);

void main() {
  float a, b, u, v;
  printf("Enter a: ");
  scanf("%f", &a);
  /* printf("Enter b: "); */
  /* scanf("%f", &b); */
  // u = 1.0e-40f; // can be rep in denormalized form
  // v = 1.1e-40f;
  u = 1.0e-400f; 
  v = 1.1e-400f;
  if (u == v)
    printf("u is equal to v\n");
  else
    printf("u is not equal to v\n");
  printf("Value of a is: %12.18f\n", a);
  printf("Value of u is: %12.18f\n", u);
  printf("Value of v is: %12.18f\n", v);
  print_float(&u);
  print_float(&v);
}

void print_float(float *p) {
  unsigned int *q;
  q = (unsigned int *) p;
  unsigned int i, y;
  y = 1 << 31;
  for(i=0; i < 32; i++) {
    if((*q) & y)
      printf("1");
    else
      printf("0");
    if (i == 0 || i == 8)
      printf(" ");
    y = y >> 1;
  }
  printf("\n");
}