share/colnew/ex2/dfsub.lisp

   1 ;;; Compiled by f2cl version:
   2 ;;; ("f2cl1.l,v 1.221 2010/05/26 19:25:52 rtoy Exp $"
   3 ;;;  "f2cl2.l,v 1.37 2008/02/22 22:19:33 rtoy Exp $"
   4 ;;;  "f2cl3.l,v 1.6 2008/02/22 22:19:33 rtoy Exp $"
   5 ;;;  "f2cl4.l,v 1.7 2008/02/22 22:19:34 rtoy Exp $"
   6 ;;;  "f2cl5.l,v 1.204 2010/02/23 05:21:30 rtoy Exp $"
   7 ;;;  "f2cl6.l,v 1.48 2008/08/24 00:56:27 rtoy Exp $"
   8 ;;;  "macros.l,v 1.114 2010/05/17 01:42:14 rtoy Exp $")
   9
  10 ;;; Using Lisp CMU Common Lisp CVS Head 2010-05-25 18:21:07 (20A 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 :colnew)
  18
  19
  20 (defun dfsub (x z df)
  21   (declare (type (array double-float (*)) df)
  22            (type (array double-float (*)) z)
  23            (type double-float x))
  24   (let ()
  25     (symbol-macrolet ((eps4mu (%blank%-eps4mu *%blank%-common-block*))
  26                       (dmu (%blank%-dmu *%blank%-common-block*)))
  27       (f2cl-lib:with-multi-array-data
  28           ((z double-float z-%data% z-%offset%)
  29            (df double-float df-%data% df-%offset%))
  30         (prog ()
  31           (declare)
  32           (setf (f2cl-lib:fref df-%data% (1 1) ((1 2) (1 4)) df-%offset%)
  33                   (+ (/ (/ 1.0f0 x) x)
  34                      (/
  35                       (+ 1.0f0
  36                          (/ (f2cl-lib:fref z-%data% (3) ((1 4)) z-%offset%) x))
  37                       eps4mu)))
  38           (setf (f2cl-lib:fref df-%data% (1 2) ((1 2) (1 4)) df-%offset%)
  39                   (/ -1.0f0 x))
  40           (setf (f2cl-lib:fref df-%data% (1 3) ((1 2) (1 4)) df-%offset%)
  41                   (/
  42                    (-
  43                     (+ 1.0f0
  44                        (/
  45                         (* -1 (f2cl-lib:fref z-%data% (1) ((1 4)) z-%offset%))
  46                         x)))
  47                    eps4mu))
  48           (setf (f2cl-lib:fref df-%data% (1 4) ((1 2) (1 4)) df-%offset%)
  49                   (coerce 0.0f0 'double-float))
  50           (setf (f2cl-lib:fref df-%data% (2 1) ((1 2) (1 4)) df-%offset%)
  51                   (/
  52                    (+ 1.0f0
  53                       (/ (- (f2cl-lib:fref z-%data% (1) ((1 4)) z-%offset%))
  54                          x))
  55                    dmu))
  56           (setf (f2cl-lib:fref df-%data% (2 2) ((1 2) (1 4)) df-%offset%)
  57                   (coerce 0.0f0 'double-float))
  58           (setf (f2cl-lib:fref df-%data% (2 3) ((1 2) (1 4)) df-%offset%)
  59                   (/ (/ 1.0f0 x) x))
  60           (setf (f2cl-lib:fref df-%data% (2 4) ((1 2) (1 4)) df-%offset%)
  61                   (/ -1.0f0 x))
  62           (go end_label)
  63          end_label
  64           (return (values nil nil nil)))))))
  65
  66 (in-package #-gcl #:cl-user #+gcl "CL-USER")
  67 #+#.(cl:if (cl:find-package '#:f2cl) '(and) '(or))
  68 (eval-when (:load-toplevel :compile-toplevel :execute)
  69   (setf (gethash 'fortran-to-lisp::dfsub fortran-to-lisp::*f2cl-function-info*)
  70           (fortran-to-lisp::make-f2cl-finfo
  71            :arg-types '(double-float (array double-float (4))
  72                         (array double-float (8)))
  73            :return-values '(nil nil nil)
  74            :calls 'nil)))
  75