share/odepack/src/dgefa.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 $")
   9
  10 ;;; Using Lisp CMU Common Lisp snapshot-2017-01 (21B Unicode)
  11 ;;;
  12 ;;; Options: ((:prune-labels nil) (:auto-save t) (:relaxed-array-decls t)
  13 ;;;           (:coerce-assigns :as-needed) (:array-type ':array)
  14 ;;;           (:array-slicing t) (:declare-common nil)
  15 ;;;           (:float-format double-float))
  16
  17 (in-package "ODEPACK")
  18
  19
  20 (defun dgefa (a lda n ipvt info)
  21   (declare (type (array f2cl-lib:integer4 (*)) ipvt)
  22            (type (f2cl-lib:integer4) info n lda)
  23            (type (array double-float (*)) a))
  24   (f2cl-lib:with-multi-array-data
  25       ((a double-float a-%data% a-%offset%)
  26        (ipvt f2cl-lib:integer4 ipvt-%data% ipvt-%offset%))
  27     (prog ((j 0) (k 0) (kp1 0) (l 0) (nm1 0) (t$ 0.0))
  28       (declare (type (double-float) t$)
  29                (type (f2cl-lib:integer4) nm1 l kp1 k j))
  30       (setf info 0)
  31       (setf nm1 (f2cl-lib:int-sub n 1))
  32       (if (< nm1 1) (go label70))
  33       (f2cl-lib:fdo (k 1 (f2cl-lib:int-add k 1))
  34                     ((> k nm1) nil)
  35         (tagbody
  36           (setf kp1 (f2cl-lib:int-add k 1))
  37           (setf l
  38                   (f2cl-lib:int-sub
  39                    (f2cl-lib:int-add
  40                     (idamax (f2cl-lib:int-add (f2cl-lib:int-sub n k) 1)
  41                      (f2cl-lib:array-slice a-%data%
  42                                            double-float
  43                                            (k k)
  44                                            ((1 lda) (1 *))
  45                                            a-%offset%)
  46                      1)
  47                     k)
  48                    1))
  49           (setf (f2cl-lib:fref ipvt-%data% (k) ((1 *)) ipvt-%offset%) l)
  50           (if (= (f2cl-lib:fref a-%data% (l k) ((1 lda) (1 *)) a-%offset%) 0.0)
  51               (go label40))
  52           (if (= l k) (go label10))
  53           (setf t$ (f2cl-lib:fref a-%data% (l k) ((1 lda) (1 *)) a-%offset%))
  54           (setf (f2cl-lib:fref a-%data% (l k) ((1 lda) (1 *)) a-%offset%)
  55                   (f2cl-lib:fref a-%data% (k k) ((1 lda) (1 *)) a-%offset%))
  56           (setf (f2cl-lib:fref a-%data% (k k) ((1 lda) (1 *)) a-%offset%) t$)
  57          label10
  58           (setf t$
  59                   (/ -1.0
  60                      (f2cl-lib:fref a-%data%
  61                                     (k k)
  62                                     ((1 lda) (1 *))
  63                                     a-%offset%)))
  64           (dscal (f2cl-lib:int-sub n k) t$
  65            (f2cl-lib:array-slice a-%data%
  66                                  double-float
  67                                  ((+ k 1) k)
  68                                  ((1 lda) (1 *))
  69                                  a-%offset%)
  70            1)
  71           (f2cl-lib:fdo (j kp1 (f2cl-lib:int-add j 1))
  72                         ((> j n) nil)
  73             (tagbody
  74               (setf t$
  75                       (f2cl-lib:fref a-%data%
  76                                      (l j)
  77                                      ((1 lda) (1 *))
  78                                      a-%offset%))
  79               (if (= l k) (go label20))
  80               (setf (f2cl-lib:fref a-%data% (l j) ((1 lda) (1 *)) a-%offset%)
  81                       (f2cl-lib:fref a-%data%
  82                                      (k j)
  83                                      ((1 lda) (1 *))
  84                                      a-%offset%))
  85               (setf (f2cl-lib:fref a-%data% (k j) ((1 lda) (1 *)) a-%offset%)
  86                       t$)
  87              label20
  88               (daxpy (f2cl-lib:int-sub n k) t$
  89                (f2cl-lib:array-slice a-%data%
  90                                      double-float
  91                                      ((+ k 1) k)
  92                                      ((1 lda) (1 *))
  93                                      a-%offset%)
  94                1
  95                (f2cl-lib:array-slice a-%data%
  96                                      double-float
  97                                      ((+ k 1) j)
  98                                      ((1 lda) (1 *))
  99                                      a-%offset%)
 100                1)
 101              label30))
 102           (go label50)
 103          label40
 104           (setf info k)
 105          label50
 106          label60))
 107      label70
 108       (setf (f2cl-lib:fref ipvt-%data% (n) ((1 *)) ipvt-%offset%) n)
 109       (if (= (f2cl-lib:fref a-%data% (n n) ((1 lda) (1 *)) a-%offset%) 0.0)
 110           (setf info n))
 111       (go end_label)
 112      end_label
 113       (return (values nil nil nil nil info)))))
 114
 115 (in-package #:cl-user)
 116 #+#.(cl:if (cl:find-package '#:f2cl) '(and) '(or))
 117 (eval-when (:load-toplevel :compile-toplevel :execute)
 118   (setf (gethash 'fortran-to-lisp::dgefa fortran-to-lisp::*f2cl-function-info*)
 119           (fortran-to-lisp::make-f2cl-finfo
 120            :arg-types '((array double-float (*)) (fortran-to-lisp::integer4)
 121                         (fortran-to-lisp::integer4)
 122                         (array fortran-to-lisp::integer4 (*))
 123                         (fortran-to-lisp::integer4))
 124            :return-values '(nil nil nil nil fortran-to-lisp::info)
 125            :calls '(fortran-to-lisp::daxpy fortran-to-lisp::dscal
 126                     fortran-to-lisp::idamax))))
 127