share/hompack/lisp/divp.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 double-float))
  16
  17 (in-package "HOMPACK")
  18
  19
  20 (defun divp (xxxx yyyy zzzz ierr)
  21   (declare (type (f2cl-lib:integer4) ierr)
  22            (type (array double-float (*)) zzzz yyyy xxxx))
  23   (f2cl-lib:with-multi-array-data
  24       ((xxxx double-float xxxx-%data% xxxx-%offset%)
  25        (yyyy double-float yyyy-%data% yyyy-%offset%)
  26        (zzzz double-float zzzz-%data% zzzz-%offset%))
  27     (prog ((denom 0.0) (xnum 0.0))
  28       (declare (type (double-float) xnum denom))
  29       (setf ierr 0)
  30       (setf denom
  31               (+
  32                (* (f2cl-lib:fref yyyy-%data% (1) ((1 2)) yyyy-%offset%)
  33                   (f2cl-lib:fref yyyy-%data% (1) ((1 2)) yyyy-%offset%))
  34                (* (f2cl-lib:fref yyyy-%data% (2) ((1 2)) yyyy-%offset%)
  35                   (f2cl-lib:fref yyyy-%data% (2) ((1 2)) yyyy-%offset%))))
  36       (setf xnum
  37               (+
  38                (* (f2cl-lib:fref xxxx-%data% (1) ((1 2)) xxxx-%offset%)
  39                   (f2cl-lib:fref yyyy-%data% (1) ((1 2)) yyyy-%offset%))
  40                (* (f2cl-lib:fref xxxx-%data% (2) ((1 2)) xxxx-%offset%)
  41                   (f2cl-lib:fref yyyy-%data% (2) ((1 2)) yyyy-%offset%))))
  42       (cond
  43         ((or (>= (abs denom) 1.0f0)
  44              (and (< (abs denom) 1.0f0)
  45                   (< (f2cl-lib:f2cl/ (abs xnum) (f2cl-lib:d1mach 2))
  46                      (abs denom))))
  47          (setf (f2cl-lib:fref zzzz-%data% (1) ((1 2)) zzzz-%offset%)
  48                  (/ xnum denom)))
  49         (t
  50          (setf (f2cl-lib:fref zzzz-%data% (1) ((1 2)) zzzz-%offset%)
  51                  (f2cl-lib:d1mach 2))
  52          (setf ierr 1)))
  53       (setf xnum
  54               (-
  55                (* (f2cl-lib:fref xxxx-%data% (2) ((1 2)) xxxx-%offset%)
  56                   (f2cl-lib:fref yyyy-%data% (1) ((1 2)) yyyy-%offset%))
  57                (* (f2cl-lib:fref xxxx-%data% (1) ((1 2)) xxxx-%offset%)
  58                   (f2cl-lib:fref yyyy-%data% (2) ((1 2)) yyyy-%offset%))))
  59       (cond
  60         ((or (>= (abs denom) 1.0f0)
  61              (and (< (abs denom) 1.0f0)
  62                   (< (f2cl-lib:f2cl/ (abs xnum) (f2cl-lib:d1mach 2))
  63                      (abs denom))))
  64          (setf (f2cl-lib:fref zzzz-%data% (2) ((1 2)) zzzz-%offset%)
  65                  (/ xnum denom)))
  66         (t
  67          (setf (f2cl-lib:fref zzzz-%data% (2) ((1 2)) zzzz-%offset%)
  68                  (f2cl-lib:d1mach 2))
  69          (setf ierr 1)))
  70       (go end_label)
  71      end_label
  72       (return (values nil nil nil ierr)))))
  73
  74 (in-package #:cl-user)
  75 #+#.(cl:if (cl:find-package '#:f2cl) '(and) '(or))
  76 (eval-when (:load-toplevel :compile-toplevel :execute)
  77   (setf (gethash 'fortran-to-lisp::divp fortran-to-lisp::*f2cl-function-info*)
  78           (fortran-to-lisp::make-f2cl-finfo
  79            :arg-types '((array double-float (*)) (array double-float (*))
  80                         (array double-float (*)) (fortran-to-lisp::integer4))
  81            :return-values '(nil nil nil fortran-to-lisp::ierr)
  82            :calls '(fortran-to-lisp::d1mach))))
  83