;;; Compiled by f2cl version:
;;; ("f2cl1.l,v 95098eb54f13 2013/04/01 00:45:16 toy $"
;;;  "f2cl2.l,v 95098eb54f13 2013/04/01 00:45:16 toy $"
;;;  "f2cl3.l,v 96616d88fb7e 2008/02/22 22:19:34 rtoy $"
;;;  "f2cl4.l,v 96616d88fb7e 2008/02/22 22:19:34 rtoy $"
;;;  "f2cl5.l,v 95098eb54f13 2013/04/01 00:45:16 toy $"
;;;  "f2cl6.l,v 1d5cbacbb977 2008/08/24 00:56:27 rtoy $"
;;;  "macros.l,v 1409c1352feb 2013/03/24 20:44:50 toy $")

;;; Using Lisp CMU Common Lisp snapshot-2017-01 (21B Unicode)
;;; 
;;; Options: ((:prune-labels nil) (:auto-save t) (:relaxed-array-decls t)
;;;           (:coerce-assigns :as-needed) (:array-type ':array)
;;;           (:array-slicing t) (:declare-common nil)
;;;           (:float-format double-float))

(in-package "ODEPACK")


(defun idamax (n dx incx)
  (declare (type (array double-float (*)) dx)
           (type (f2cl-lib:integer4) incx n))
  (f2cl-lib:with-multi-array-data
      ((dx double-float dx-%data% dx-%offset%))
    (prog ((i 0) (ix 0) (dmax 0.0) (xmag 0.0) (idamax 0))
      (declare (type (double-float) xmag dmax)
               (type (f2cl-lib:integer4) idamax ix i))
      (setf idamax 0)
      (if (<= n 0) (go end_label))
      (setf idamax 1)
      (if (= n 1) (go end_label))
      (if (= incx 1) (go label20))
      (setf ix 1)
      (if (< incx 0)
          (setf ix
                  (f2cl-lib:int-add
                   (f2cl-lib:int-mul (f2cl-lib:int-sub 1 n) incx)
                   1)))
      (setf dmax (abs (f2cl-lib:fref dx-%data% (ix) ((1 *)) dx-%offset%)))
      (setf ix (f2cl-lib:int-add ix incx))
      (f2cl-lib:fdo (i 2 (f2cl-lib:int-add i 1))
                    ((> i n) nil)
        (tagbody
          (setf xmag (abs (f2cl-lib:fref dx-%data% (ix) ((1 *)) dx-%offset%)))
          (cond
            ((> xmag dmax)
             (setf idamax i)
             (setf dmax xmag)))
          (setf ix (f2cl-lib:int-add ix incx))
         label10))
      (go end_label)
     label20
      (setf dmax (abs (f2cl-lib:fref dx-%data% (1) ((1 *)) dx-%offset%)))
      (f2cl-lib:fdo (i 2 (f2cl-lib:int-add i 1))
                    ((> i n) nil)
        (tagbody
          (setf xmag (abs (f2cl-lib:fref dx-%data% (i) ((1 *)) dx-%offset%)))
          (cond
            ((> xmag dmax)
             (setf idamax i)
             (setf dmax xmag)))
         label30))
      (go end_label)
     end_label
      (return (values idamax nil nil nil)))))

(in-package #:cl-user)
#+#.(cl:if (cl:find-package '#:f2cl) '(and) '(or))
(eval-when (:load-toplevel :compile-toplevel :execute)
  (setf (gethash 'fortran-to-lisp::idamax
                 fortran-to-lisp::*f2cl-function-info*)
          (fortran-to-lisp::make-f2cl-finfo
           :arg-types '((fortran-to-lisp::integer4) (array double-float (*))
                        (fortran-to-lisp::integer4))
           :return-values '(nil nil nil)
           :calls 'nil)))

