share/fftpack5/lisp/cosq1b.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 cosq1b (n inc x lenx wsave lensav work lenwrk ier)
  21   (declare (type (array double-float (*)) work wsave x)
  22            (type (f2cl-lib:integer4) ier lenwrk lensav lenx inc n))
  23   (f2cl-lib:with-multi-array-data
  24       ((x double-float x-%data% x-%offset%)
  25        (wsave double-float wsave-%data% wsave-%offset%)
  26        (work double-float work-%data% work-%offset%))
  27     (prog ((ier1 0) (x1 0.0d0) (ssqrt2 0.0d0))
  28       (declare (type (double-float) ssqrt2 x1) (type (f2cl-lib:integer4) ier1))
  29       (setf ier 0)
  30       (cond
  31         ((< lenx
  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 "COSQ1B" 6)
  37          (go label300))
  38         ((< lensav
  39             (f2cl-lib:int-add (f2cl-lib:int-mul 2 n)
  40                               (f2cl-lib:int
  41                                (f2cl-lib:f2cl/
  42                                 (f2cl-lib:flog (f2cl-lib:freal n))
  43                                 (f2cl-lib:flog 2.0d0)))
  44                               4))
  45          (setf ier 2)
  46          (xerfft "COSQ1B" 8)
  47          (go label300))
  48         ((< lenwrk n)
  49          (setf ier 3)
  50          (xerfft "COSQ1B" 10)
  51          (go label300)))
  52       (f2cl-lib:arithmetic-if (f2cl-lib:int-sub n 2)
  53                               (go label300)
  54                               (go label102)
  55                               (go label103))
  56      label102
  57       (setf ssqrt2 (/ 1.0d0 (f2cl-lib:fsqrt 2.0d0)))
  58       (setf x1
  59               (+ (f2cl-lib:fref x-%data% (1 1) ((1 inc) (1 *)) x-%offset%)
  60                  (f2cl-lib:fref x-%data% (1 2) ((1 inc) (1 *)) x-%offset%)))
  61       (setf (f2cl-lib:fref x-%data% (1 2) ((1 inc) (1 *)) x-%offset%)
  62               (* ssqrt2
  63                  (- (f2cl-lib:fref x-%data% (1 1) ((1 inc) (1 *)) x-%offset%)
  64                     (f2cl-lib:fref x-%data%
  65                                    (1 2)
  66                                    ((1 inc) (1 *))
  67                                    x-%offset%))))
  68       (setf (f2cl-lib:fref x-%data% (1 1) ((1 inc) (1 *)) x-%offset%) x1)
  69       (go end_label)
  70      label103
  71       (multiple-value-bind (var-0 var-1 var-2 var-3 var-4 var-5)
  72           (cosqb1 n inc x wsave work ier1)
  73         (declare (ignore var-0 var-1 var-2 var-3 var-4))
  74         (setf ier1 var-5))
  75       (cond
  76         ((/= ier1 0)
  77          (setf ier 20)
  78          (xerfft "COSQ1B" -5)))
  79      label300
  80       (go end_label)
  81      end_label
  82       (return (values nil nil nil nil nil nil nil nil ier)))))
  83
  84 (in-package #:cl-user)
  85 #+#.(cl:if (cl:find-package '#:f2cl) '(and) '(or))
  86 (eval-when (:load-toplevel :compile-toplevel :execute)
  87   (setf (gethash 'fortran-to-lisp::cosq1b
  88                  fortran-to-lisp::*f2cl-function-info*)
  89           (fortran-to-lisp::make-f2cl-finfo
  90            :arg-types '((fortran-to-lisp::integer4) (fortran-to-lisp::integer4)
  91                         (array double-float (*)) (fortran-to-lisp::integer4)
  92                         (array double-float (*)) (fortran-to-lisp::integer4)
  93                         (array double-float (*)) (fortran-to-lisp::integer4)
  94                         (fortran-to-lisp::integer4))
  95            :return-values '(nil nil nil nil nil nil nil nil
  96                             fortran-to-lisp::ier)
  97            :calls '(fortran-to-lisp::cosqb1 fortran-to-lisp::xerfft))))
  98