#include <stdio.h>

#include <gsl/gsl_ieee_utils.h>

int

main (void) 

{

  float f = 1.0/3.0;

  double d = 1.0/3.0;

  double fd = f; /* promote from float to double */

  printf (" f="); gsl_ieee_printf_float(&f); 

  printf ("\n");

  printf ("fd="); gsl_ieee_printf_double(&fd;; 

  printf ("\n");

  printf (" d="); gsl_ieee_printf_double(&d); 

  printf ("\n");

  return 0;

}