4 fpclass_t
_fpclass(double __d
);
10 double _jn(int n
, double num
)
12 /* FIXME: errno handling */
19 double _yn(int order
, double num
)
22 if (!isfinite(num
)) *_errno() = EDOM
;
23 retval
= yn(order
,num
);
24 if (_fpclass(retval
) == _FPCLASS_NINF
)