;;; Compiled by f2cl version 2.0 beta Date: 2007/05/04 17:29:50 
;;; Using Lisp CMU Common Lisp Snapshot 2007-05 (19D)
;;; 
;;; Options: ((:prune-labels nil) (:auto-save t) (:relaxed-array-decls t)
;;;           (:coerce-assigns :as-needed) (:array-type ':simple-array)
;;;           (:array-slicing nil) (:declare-common nil)
;;;           (:float-format double-float))

(in-package :slatec)


(let ((hpi 1.5707963267948966))
  (declare (type (double-float) hpi))
  (defun zbesj (zr zi fnu kode n cyr cyi nz ierr)
    (declare (type (simple-array double-float (*)) cyi cyr)
             (type (f2cl-lib:integer4) ierr nz n kode)
             (type (double-float) fnu zi zr))
    (prog ((i 0) (inu 0) (inuh 0) (ir 0) (k 0) (k1 0) (k2 0) (nl 0) (aa 0.0)
           (alim 0.0) (arg 0.0) (cii 0.0) (csgni 0.0) (csgnr 0.0) (dig 0.0)
           (elim 0.0) (fnul 0.0) (rl 0.0) (r1m5 0.0) (str 0.0) (tol 0.0)
           (zni 0.0) (znr 0.0) (bb 0.0) (fn 0.0) (az 0.0) (ascle 0.0)
           (rtol 0.0) (atol 0.0) (sti 0.0))
      (declare (type (double-float) sti atol rtol ascle az fn bb znr zni tol
                                    str r1m5 rl fnul elim dig csgnr csgni cii
                                    arg alim aa)
               (type (f2cl-lib:integer4) nl k2 k1 k ir inuh inu i))
      (setf ierr 0)
      (setf nz 0)
      (if (< fnu 0.0) (setf ierr 1))
      (if (or (< kode 1) (> kode 2)) (setf ierr 1))
      (if (< n 1) (setf ierr 1))
      (if (/= ierr 0) (go end_label))
      (setf tol (max (f2cl-lib:d1mach 4) 1.0e-18))
      (setf k1 (f2cl-lib:i1mach 15))
      (setf k2 (f2cl-lib:i1mach 16))
      (setf r1m5 (f2cl-lib:d1mach 5))
      (setf k
              (min (the f2cl-lib:integer4 (abs k1))
                   (the f2cl-lib:integer4 (abs k2))))
      (setf elim (* 2.303 (- (* k r1m5) 3.0)))
      (setf k1 (f2cl-lib:int-sub (f2cl-lib:i1mach 14) 1))
      (setf aa (* r1m5 k1))
      (setf dig (min aa 18.0))
      (setf aa (* aa 2.303))
      (setf alim (+ elim (max (- aa) -41.45)))
      (setf rl (+ (* 1.2 dig) 3.0))
      (setf fnul (+ 10.0 (* 6.0 (- dig 3.0))))
      (setf az (coerce (realpart (zabs zr zi)) 'double-float))
      (setf fn (+ fnu (f2cl-lib:int-sub n 1)))
      (setf aa (/ 0.5 tol))
      (setf bb (* (f2cl-lib:i1mach 9) 0.5))
      (setf aa (min aa bb))
      (if (> az aa) (go label260))
      (if (> fn aa) (go label260))
      (setf aa (f2cl-lib:fsqrt aa))
      (if (> az aa) (setf ierr 3))
      (if (> fn aa) (setf ierr 3))
      (setf cii 1.0)
      (setf inu (f2cl-lib:int fnu))
      (setf inuh (the f2cl-lib:integer4 (truncate inu 2)))
      (setf ir (f2cl-lib:int-sub inu (f2cl-lib:int-mul 2 inuh)))
      (setf arg (* (- fnu (f2cl-lib:int-sub inu ir)) hpi))
      (setf csgnr (cos arg))
      (setf csgni (sin arg))
      (if (= (mod inuh 2) 0) (go label40))
      (setf csgnr (- csgnr))
      (setf csgni (- csgni))
     label40
      (setf znr zi)
      (setf zni (- zr))
      (if (>= zi 0.0) (go label50))
      (setf znr (- znr))
      (setf zni (- zni))
      (setf csgni (- csgni))
      (setf cii (- cii))
     label50
      (multiple-value-bind
            (var-0 var-1 var-2 var-3 var-4 var-5 var-6 var-7 var-8 var-9 var-10
             var-11 var-12)
          (zbinu znr zni fnu kode n cyr cyi nz rl fnul tol elim alim)
        (declare (ignore var-0 var-1 var-2 var-3 var-4 var-5 var-6 var-8 var-9
                         var-10 var-11 var-12))
        (setf nz var-7))
      (if (< nz 0) (go label130))
      (setf nl (f2cl-lib:int-sub n nz))
      (if (= nl 0) (go end_label))
      (setf rtol (/ 1.0 tol))
      (setf ascle (* (f2cl-lib:d1mach 1) rtol 1000.0))
      (f2cl-lib:fdo (i 1 (f2cl-lib:int-add i 1))
                    ((> i nl) nil)
        (tagbody
          (setf aa (f2cl-lib:fref cyr (i) ((1 n))))
          (setf bb (f2cl-lib:fref cyi (i) ((1 n))))
          (setf atol 1.0)
          (if (> (max (abs aa) (abs bb)) ascle) (go label55))
          (setf aa (* aa rtol))
          (setf bb (* bb rtol))
          (setf atol tol)
         label55
          (setf str (- (* aa csgnr) (* bb csgni)))
          (setf sti (+ (* aa csgni) (* bb csgnr)))
          (setf (f2cl-lib:fref cyr (i) ((1 n))) (* str atol))
          (setf (f2cl-lib:fref cyi (i) ((1 n))) (* sti atol))
          (setf str (* (- csgni) cii))
          (setf csgni (* csgnr cii))
          (setf csgnr str)
         label60))
      (go end_label)
     label130
      (if (= nz -2) (go label140))
      (setf nz 0)
      (setf ierr 2)
      (go end_label)
     label140
      (setf nz 0)
      (setf ierr 5)
      (go end_label)
     label260
      (setf nz 0)
      (setf ierr 4)
      (go end_label)
     end_label
      (return (values nil nil nil nil nil nil nil nz ierr)))))

(in-package #-gcl #:cl-user #+gcl "CL-USER")
#+#.(cl:if (cl:find-package '#:f2cl) '(and) '(or))
(eval-when (:load-toplevel :compile-toplevel :execute)
  (setf (gethash 'fortran-to-lisp::zbesj fortran-to-lisp::*f2cl-function-info*)
          (fortran-to-lisp::make-f2cl-finfo
           :arg-types '((double-float) (double-float) (double-float)
                        (fortran-to-lisp::integer4) (fortran-to-lisp::integer4)
                        (simple-array double-float (*))
                        (simple-array double-float (*))
                        (fortran-to-lisp::integer4)
                        (fortran-to-lisp::integer4))
           :return-values '(nil nil nil nil nil nil nil fortran-to-lisp::nz
                            fortran-to-lisp::ierr)
           :calls '(fortran-to-lisp::zbinu fortran-to-lisp::zabs
                    fortran-to-lisp::i1mach fortran-to-lisp::d1mach))))