#include <stdio.h>

int
main (void)
{
  double f = 0.0;
  if (!isinf (f))
    {
      printf ("not isinf(oo) ... ");
      return 1;
    }
  if (!isinf (-f))
    {
      printf ("not isinf(-oo) ... ");
      return 1;
    }
  return 0;
}