src/numerical/slatec/d9upak.lisp

   1 ;;; Compiled by f2cl version:
   2 ;;; ("f2cl1.l,v 46c1f6a93b0d 2012/05/03 04:40:28 toy $"
   3 ;;;  "f2cl2.l,v 96616d88fb7e 2008/02/22 22:19:34 rtoy $"
   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 46c1f6a93b0d 2012/05/03 04:40:28 toy $"
   7 ;;;  "f2cl6.l,v 1d5cbacbb977 2008/08/24 00:56:27 rtoy $"
   8 ;;;  "macros.l,v fceac530ef0c 2011/11/26 04:02:26 toy $")
   9
  10 ;;; Using Lisp CMU Common Lisp snapshot-2012-04 (20C Unicode)
  11 ;;;
  12 ;;; Options: ((:prune-labels nil) (:auto-save t) (:relaxed-array-decls t)
  13 ;;;           (:coerce-assigns :as-needed) (:array-type ':simple-array)
  14 ;;;           (:array-slicing nil) (:declare-common nil)
  15 ;;;           (:float-format double-float))
  16
  17 (in-package :slatec)
  18
  19
  20 (defun d9upak (x y n)
  21   (declare (type (f2cl-lib:integer4) n) (type (double-float) y x))
  22   (prog ((absx 0.0))
  23     (declare (type (double-float) absx))
  24     (setf absx (f2cl-lib:dabs x))
  25     (setf n 0)
  26     (setf y 0.0)
  27     (if (= x 0.0) (go end_label))
  28    label10
  29     (if (>= absx 0.5) (go label20))
  30     (setf n (f2cl-lib:int-sub n 1))
  31     (setf absx (* absx 2.0))
  32     (go label10)
  33    label20
  34     (if (< absx 1.0) (go label30))
  35     (setf n (f2cl-lib:int-add n 1))
  36     (setf absx (* absx 0.5))
  37     (go label20)
  38    label30
  39     (setf y (coerce (f2cl-lib:dsign absx x) 'double-float))
  40     (go end_label)
  41    end_label
  42     (return (values nil y n))))
  43
  44 (in-package #:cl-user)
  45 #+#.(cl:if (cl:find-package '#:f2cl) '(and) '(or))
  46 (eval-when (:load-toplevel :compile-toplevel :execute)
  47   (setf (gethash 'fortran-to-lisp::d9upak
  48                  fortran-to-lisp::*f2cl-function-info*)
  49           (fortran-to-lisp::make-f2cl-finfo
  50            :arg-types '((double-float) (double-float)
  51                         (fortran-to-lisp::integer4))
  52            :return-values '(nil fortran-to-lisp::y fortran-to-lisp::n)
  53            :calls 'nil)))
  54