share/fftpack5/lisp/cosqmi.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 cosqmi (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 ((ier1 0) (lnsv 0) (k 0) (fk 0.0d0) (dt 0.0d0) (pih 0.0d0))
  26       (declare (type (double-float) pih dt fk)
  27                (type (f2cl-lib:integer4) k lnsv ier1))
  28       (setf ier 0)
  29       (cond
  30         ((< lensav
  31             (f2cl-lib:int-add (f2cl-lib:int-mul 2 n)
  32                               (f2cl-lib:int
  33                                (f2cl-lib:f2cl/
  34                                 (f2cl-lib:flog (f2cl-lib:freal n))
  35                                 (f2cl-lib:flog 2.0d0)))
  36                               4))
  37          (setf ier 2)
  38          (xerfft "COSQMI" 3)
  39          (go label300)))
  40       (setf pih (* 2.0d0 (atan 1.0d0)))
  41       (setf dt (/ pih (f2cl-lib:ffloat n)))
  42       (setf fk 0.0d0)
  43       (f2cl-lib:fdo (k 1 (f2cl-lib:int-add k 1))
  44                     ((> k n) nil)
  45         (tagbody
  46           (setf fk (+ fk 1.0d0))
  47           (setf (f2cl-lib:fref wsave-%data% (k) ((1 lensav)) wsave-%offset%)
  48                   (cos (* fk dt)))
  49          label101))
  50       (setf lnsv
  51               (f2cl-lib:int-add n
  52                                 (f2cl-lib:int
  53                                  (/ (f2cl-lib:flog (f2cl-lib:freal n))
  54                                     (f2cl-lib:flog 2.0d0)))
  55                                 4))
  56       (multiple-value-bind (var-0 var-1 var-2 var-3)
  57           (rfftmi n
  58            (f2cl-lib:array-slice wsave-%data%
  59                                  double-float
  60                                  ((+ n 1))
  61                                  ((1 lensav))
  62                                  wsave-%offset%)
  63            lnsv ier1)
  64         (declare (ignore var-0 var-1 var-2))
  65         (setf ier1 var-3))
  66       (cond
  67         ((/= ier1 0)
  68          (setf ier 20)
  69          (xerfft "COSQMI" -5)))
  70      label300
  71       (go end_label)
  72      end_label
  73       (return (values nil nil nil ier)))))
  74
  75 (in-package #:cl-user)
  76 #+#.(cl:if (cl:find-package '#:f2cl) '(and) '(or))
  77 (eval-when (:load-toplevel :compile-toplevel :execute)
  78   (setf (gethash 'fortran-to-lisp::cosqmi
  79                  fortran-to-lisp::*f2cl-function-info*)
  80           (fortran-to-lisp::make-f2cl-finfo
  81            :arg-types '((fortran-to-lisp::integer4) (array double-float (*))
  82                         (fortran-to-lisp::integer4)
  83                         (fortran-to-lisp::integer4))
  84            :return-values '(nil nil nil fortran-to-lisp::ier)
  85            :calls '(fortran-to-lisp::rfftmi fortran-to-lisp::xerfft))))
  86