x                  The relevant Bessel value of x of the second
                       kind.
    -HUGE_VAL          The x argument is 0.0; errno is set to ERANGE.
    NaN                The x argument is negative or NaN; errno is
                       set to EDOM.
    0                  Underflow occurred; errno is set to ERANGE.
    HUGE_VAL           Overflow occurred; errno is set to ERANGE.