share/lapack/blas/icamax.lisp

   1 ;;; Compiled by f2cl version:
   2 ;;; ("f2cl1.l,v 2edcbd958861 2012/05/30 03:34:52 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 3fe93de3be82 2012/05/06 02:17:14 toy $"
   7 ;;;  "f2cl6.l,v 1d5cbacbb977 2008/08/24 00:56:27 rtoy $"
   8 ;;;  "macros.l,v 3fe93de3be82 2012/05/06 02:17:14 toy $")
   9
  10 ;;; Using Lisp CMU Common Lisp 20d (20D 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 :blas)
  18
  19
  20 (defun icamax (n cx incx)
  21   (declare (type (array f2cl-lib:complex8 (*)) cx)
  22            (type (f2cl-lib:integer4) incx n))
  23   (f2cl-lib:with-multi-array-data
  24       ((cx f2cl-lib:complex8 cx-%data% cx-%offset%))
  25     (labels ((cabs1 (zdum)
  26                (+ (abs (f2cl-lib:freal zdum)) (abs (f2cl-lib:aimag zdum)))))
  27       (declare (ftype (function (f2cl-lib:complex8)
  28                        (values single-float &rest t))
  29                       cabs1))
  30       (prog ((zdum #C(0.0f0 0.0f0)) (i 0) (ix 0) (smax 0.0f0) (icamax 0))
  31         (declare (type (single-float) smax)
  32                  (type (f2cl-lib:integer4) icamax ix i)
  33                  (type (f2cl-lib:complex8) zdum))
  34         (setf icamax 0)
  35         (if (or (< n 1) (<= incx 0)) (go end_label))
  36         (setf icamax 1)
  37         (if (= n 1) (go end_label))
  38         (if (= incx 1) (go label20))
  39         (setf ix 1)
  40         (setf smax (cabs1 (f2cl-lib:fref cx-%data% (1) ((1 *)) cx-%offset%)))
  41         (setf ix (f2cl-lib:int-add ix incx))
  42         (f2cl-lib:fdo (i 2 (f2cl-lib:int-add i 1))
  43                       ((> i n) nil)
  44           (tagbody
  45             (if
  46              (<= (cabs1 (f2cl-lib:fref cx-%data% (ix) ((1 *)) cx-%offset%))
  47                  smax)
  48              (go label5))
  49             (setf icamax i)
  50             (setf smax
  51                     (cabs1 (f2cl-lib:fref cx-%data% (ix) ((1 *)) cx-%offset%)))
  52            label5
  53             (setf ix (f2cl-lib:int-add ix incx))
  54            label10))
  55         (go end_label)
  56        label20
  57         (setf smax (cabs1 (f2cl-lib:fref cx-%data% (1) ((1 *)) cx-%offset%)))
  58         (f2cl-lib:fdo (i 2 (f2cl-lib:int-add i 1))
  59                       ((> i n) nil)
  60           (tagbody
  61             (if
  62              (<= (cabs1 (f2cl-lib:fref cx-%data% (i) ((1 *)) cx-%offset%))
  63                  smax)
  64              (go label30))
  65             (setf icamax i)
  66             (setf smax
  67                     (cabs1 (f2cl-lib:fref cx-%data% (i) ((1 *)) cx-%offset%)))
  68            label30))
  69         (go end_label)
  70        end_label
  71         (return (values icamax nil nil nil))))))
  72
  73 (in-package #:cl-user)
  74 #+#.(cl:if (cl:find-package '#:f2cl) '(and) '(or))
  75 (eval-when (:load-toplevel :compile-toplevel :execute)
  76   (setf (gethash 'fortran-to-lisp::icamax
  77                  fortran-to-lisp::*f2cl-function-info*)
  78           (fortran-to-lisp::make-f2cl-finfo
  79            :arg-types '((fortran-to-lisp::integer4)
  80                         (array fortran-to-lisp::complex8 (*))
  81                         (fortran-to-lisp::integer4))
  82            :return-values '(nil nil nil)
  83            :calls 'nil)))
  84