share/fftpack5/lisp/rfft1b.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 rfft1b (n inc r lenr wsave lensav work lenwrk ier)
  21   (declare (type (array double-float (*)) work wsave r)
  22            (type (f2cl-lib:integer4) ier lenwrk lensav lenr inc n))
  23   (f2cl-lib:with-multi-array-data
  24       ((r double-float r-%data% r-%offset%)
  25        (wsave double-float wsave-%data% wsave-%offset%)
  26        (work double-float work-%data% work-%offset%))
  27     (prog ()
  28       (declare)
  29       (setf ier 0)
  30       (cond
  31         ((< lenr
  32             (f2cl-lib:int-add
  33              (f2cl-lib:int-mul inc (f2cl-lib:int-add n (f2cl-lib:int-sub 1)))
  34              1))
  35          (setf ier 1)
  36          (xerfft "RFFT1B " 6))
  37         ((< lensav
  38             (f2cl-lib:int-add n
  39                               (f2cl-lib:int
  40                                (f2cl-lib:f2cl/
  41                                 (f2cl-lib:flog (f2cl-lib:freal n))
  42                                 (f2cl-lib:flog 2.0d0)))
  43                               4))
  44          (setf ier 2)
  45          (xerfft "RFFT1B " 8))
  46         ((< lenwrk n)
  47          (setf ier 3)
  48          (xerfft "RFFT1B " 10)))
  49       (if (= n 1) (go end_label))
  50       (rfftb1 n inc r work wsave
  51        (f2cl-lib:array-slice wsave-%data%
  52                              double-float
  53                              ((+ n 1))
  54                              ((1 lensav))
  55                              wsave-%offset%))
  56       (go end_label)
  57      end_label
  58       (return (values nil nil nil nil nil nil nil nil ier)))))
  59
  60 (in-package #:cl-user)
  61 #+#.(cl:if (cl:find-package '#:f2cl) '(and) '(or))
  62 (eval-when (:load-toplevel :compile-toplevel :execute)
  63   (setf (gethash 'fortran-to-lisp::rfft1b
  64                  fortran-to-lisp::*f2cl-function-info*)
  65           (fortran-to-lisp::make-f2cl-finfo
  66            :arg-types '((fortran-to-lisp::integer4) (fortran-to-lisp::integer4)
  67                         (array double-float (*)) (fortran-to-lisp::integer4)
  68                         (array double-float (*)) (fortran-to-lisp::integer4)
  69                         (array double-float (*)) (fortran-to-lisp::integer4)
  70                         (fortran-to-lisp::integer4))
  71            :return-values '(nil nil nil nil nil nil nil nil
  72                             fortran-to-lisp::ier)
  73            :calls '(fortran-to-lisp::rfftb1 fortran-to-lisp::xerfft))))
  74