[DllImport("swedll32.dll", CharSet = CharSet.Ansi, EntryPoint = "swe_revjul")]
private extern static double ext_swe_revjul(double tjd, int gregflag, ref int year, ref int month, ref int day, ref double hour);

[<DllImport("swedll32.dll", CharSet = CharSet.Ansi, EntryPoint = "swe_revjul")>]
extern double ext_swe_revjul (double tjd ) (gregflag:int) (year: int byref) (month: int byref) (day: int byref) (hour: double byref);

let ext_swe_revjul double (tjd:double) (gregflag:int) (year: int byref) (month: int byref) (day: int byref) (hour: double byref )

extern static double ext_swe_revjul(double tjd, int gregflag, int* year, int* month, int* day, double* hour)

extern static double ext_swe_revjul(double tjd, int gregflag, int& year, int& month, int& day, double& hour)