share/fftpack5/lisp/cfft1i.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 single-float))
  16
  17 (in-package "FFTPACK5")
  18
  19
  20 (defun cfft1i (n wsave lensav ier)
  21   (declare (type (array double-float (*)) wsave)
  22            (type (f2cl-lib:integer4) ier lensav n))
  23   (f2cl-lib:with-multi-array-data
  24       ((wsave double-float wsave-%data% wsave-%offset%))
  25     (prog ((iw1 0))
  26       (declare (type (f2cl-lib:integer4) iw1))
  27       (setf ier 0)
  28       (cond
  29         ((< lensav
  30             (f2cl-lib:int-add (f2cl-lib:int-mul 2 n)
  31                               (f2cl-lib:int
  32                                (f2cl-lib:f2cl/
  33                                 (f2cl-lib:flog (f2cl-lib:freal n))
  34                                 (f2cl-lib:flog 2.0d0)))
  35                               4))
  36          (setf ier 2)
  37          (xerfft "CFFTMI " 3)))
  38       (if (= n 1) (go end_label))
  39       (setf iw1 (f2cl-lib:int-add n n 1))
  40       (multiple-value-bind (var-0 var-1 var-2 var-3)
  41           (mcfti1 n wsave
  42            (f2cl-lib:fref wsave-%data% (iw1) ((1 lensav)) wsave-%offset%)
  43            (f2cl-lib:array-slice wsave-%data%
  44                                  double-float
  45                                  ((+ iw1 1))
  46                                  ((1 lensav))
  47                                  wsave-%offset%))
  48         (declare (ignore var-0 var-1 var-3))
  49         (setf (f2cl-lib:fref wsave-%data% (iw1) ((1 lensav)) wsave-%offset%)
  50                 var-2))
  51       (go end_label)
  52      end_label
  53       (return (values nil nil nil ier)))))
  54
  55 (in-package #:cl-user)
  56 #+#.(cl:if (cl:find-package '#:f2cl) '(and) '(or))
  57 (eval-when (:load-toplevel :compile-toplevel :execute)
  58   (setf (gethash 'fortran-to-lisp::cfft1i
  59                  fortran-to-lisp::*f2cl-function-info*)
  60           (fortran-to-lisp::make-f2cl-finfo
  61            :arg-types '((fortran-to-lisp::integer4) (array double-float (*))
  62                         (fortran-to-lisp::integer4)
  63                         (fortran-to-lisp::integer4))
  64            :return-values '(nil nil nil fortran-to-lisp::ier)
  65            :calls '(fortran-to-lisp::mcfti1 fortran-to-lisp::xerfft))))
  66