#define EPSILON (10 * DBL_EPSILON)
-/* HUGE_VAL is traditionally defined as positive infinity, or
- alternatively, DBL_MAX. */
-#if !HAVE_ISINF && !defined isinf
-#define isinf(X) (fabs (X) == HUGE_VAL)
-#endif
-
-/* A Not a Number is not equal to itself. */
-#if !HAVE_ISNAN && !defined isnan
-#define isnan(X) ((X) != (X))
-#endif
-
-/* Finite numbers are not infinities or NaNs. */
-#if !HAVE_FINITE && !defined finite
-#define finite(X) (!isinf (X) && !isnan (X))
-#elif HAVE_IEEEFP_H
-#include <ieeefp.h> /* Declares finite() under Solaris. */
-#endif
-
/* Divides nonnegative X by positive Y, rounding up. */
#define DIV_RND_UP(X, Y) (((X) + ((Y) - 1)) / (Y))