share/hompack/lisp/powp.lisp

   1 ;;; Compiled by f2cl version:
   2 ;;; ("f2cl1.l,v 95098eb54f13 2013/04/01 00:45:16 toy $"
   3 ;;;  "f2cl2.l,v 95098eb54f13 2013/04/01 00:45:16 toy $"
   4 ;;;  "f2cl3.l,v 96616d88fb7e 2008/02/22 22:19:34 rtoy $"
   5 ;;;  "f2cl4.l,v 96616d88fb7e 2008/02/22 22:19:34 rtoy $"
   6 ;;;  "f2cl5.l,v 95098eb54f13 2013/04/01 00:45:16 toy $"
   7 ;;;  "f2cl6.l,v 1d5cbacbb977 2008/08/24 00:56:27 rtoy $"
   8 ;;;  "macros.l,v 1409c1352feb 2013/03/24 20:44:50 toy $")
   9
  10 ;;; Using Lisp CMU Common Lisp snapshot-2020-04 (21D Unicode)
  11 ;;;
  12 ;;; Options: ((:prune-labels nil) (:auto-save t) (:relaxed-array-decls t)
  13 ;;;           (:coerce-assigns :as-needed) (:array-type ':array)
  14 ;;;           (:array-slicing t) (:declare-common nil)
  15 ;;;           (:float-format double-float))
  16
  17 (in-package "HOMPACK")
  18
  19
  20 (defun powp (nnnn xxxx yyyy)
  21   (declare (type (array double-float (*)) yyyy xxxx)
  22            (type (f2cl-lib:integer4) nnnn))
  23   (f2cl-lib:with-multi-array-data
  24       ((xxxx double-float xxxx-%data% xxxx-%offset%)
  25        (yyyy double-float yyyy-%data% yyyy-%offset%))
  26     (prog ((r 0.0) (rr 0.0) (t$ 0.0) (tt 0.0))
  27       (declare (type (double-float) tt t$ rr r))
  28       (cond
  29         ((= nnnn 0)
  30          (setf (f2cl-lib:fref yyyy-%data% (1) ((1 2)) yyyy-%offset%)
  31                  (coerce 1.0f0 'double-float))
  32          (setf (f2cl-lib:fref yyyy-%data% (2) ((1 2)) yyyy-%offset%)
  33                  (coerce 0.0f0 'double-float))
  34          (go end_label)))
  35       (cond
  36         ((= nnnn 1)
  37          (setf (f2cl-lib:fref yyyy-%data% (1) ((1 2)) yyyy-%offset%)
  38                  (f2cl-lib:fref xxxx-%data% (1) ((1 2)) xxxx-%offset%))
  39          (setf (f2cl-lib:fref yyyy-%data% (2) ((1 2)) yyyy-%offset%)
  40                  (f2cl-lib:fref xxxx-%data% (2) ((1 2)) xxxx-%offset%))
  41          (go end_label)))
  42       (setf r (dnrm2 2 xxxx 1))
  43       (cond
  44         ((= r 0.0f0)
  45          (setf (f2cl-lib:fref yyyy-%data% (1) ((1 2)) yyyy-%offset%)
  46                  (coerce 0.0f0 'double-float))
  47          (setf (f2cl-lib:fref yyyy-%data% (2) ((1 2)) yyyy-%offset%)
  48                  (coerce 0.0f0 'double-float))
  49          (go end_label)))
  50       (setf rr (expt r nnnn))
  51       (setf t$
  52               (f2cl-lib:atan2
  53                (f2cl-lib:fref xxxx-%data% (2) ((1 2)) xxxx-%offset%)
  54                (f2cl-lib:fref xxxx-%data% (1) ((1 2)) xxxx-%offset%)))
  55       (setf tt (* nnnn t$))
  56       (setf (f2cl-lib:fref yyyy-%data% (1) ((1 2)) yyyy-%offset%)
  57               (* rr (cos tt)))
  58       (setf (f2cl-lib:fref yyyy-%data% (2) ((1 2)) yyyy-%offset%)
  59               (* rr (sin tt)))
  60       (go end_label)
  61      end_label
  62       (return (values nil nil nil)))))
  63
  64 (in-package #:cl-user)
  65 #+#.(cl:if (cl:find-package '#:f2cl) '(and) '(or))
  66 (eval-when (:load-toplevel :compile-toplevel :execute)
  67   (setf (gethash 'fortran-to-lisp::powp fortran-to-lisp::*f2cl-function-info*)
  68           (fortran-to-lisp::make-f2cl-finfo
  69            :arg-types '((fortran-to-lisp::integer4) (array double-float (*))
  70                         (array double-float (*)))
  71            :return-values '(nil nil nil)
  72            :calls '(fortran-to-lisp::dnrm2))))
  73