/* Compile with  'gcc -o printieee printieee.c'  */
/* (c) 2003, Sven Rahmann                        */
/* If you use this, please give credit.          */


#include <stdio.h>
#include <math.h>


void printieeedbl(double y)
{
  int b,bit,bb;
  char* p = (char*)(&y);
  char bits[64];

  for(bb=0,b=sizeof(y)-1;  b>=0;  b--)
    for(bit=7;  bit>=0;  bit--,bb++)
      bits[bb]=48+(((*(p+b)) >> bit)&1);
  
  for(bb=0; bb<64; bb++)
    {
      putchar((int)bits[bb]);
      if (bb==0 || bb==11) printf(" | ");
    }
  putchar('\n');
}


void printieeesgl(float x)
{
  int b,bit,bb;
  char* p = (char*)(&x);
  char bits[32];

  for(bb=0,b=sizeof(x)-1;  b>=0;  b--)
    for(bit=7;  bit>=0;  bit--,bb++)
      bits[bb]=48+(((*(p+b)) >> bit)&1);
  
  for(bb=0; bb<32; bb++)
    {
      putchar((int)bits[bb]);
      if (bb==0 || bb==8) printf(" | ");
    }
  putchar('\n');
}



int main(void)
{
  double y;
  float  x;

  printf("Size of double = %d bits; size of float = %d bits\n",
         8*sizeof(double), 8*sizeof(float));

  y = 0.01;
  printieeedbl(y);

  x = 0.01;
  printieeesgl(x);
  
}