source: trunk/j/src/org/armedbear/lisp/arrays.lisp @ 2563

;;; arrays.lisp
;;;
;;; Copyright (C) 2003 Peter Graves
;;; $Id: arrays.lisp,v 1.12 2003-06-23 19:41:56 piso Exp $
;;;
;;; This program is free software; you can redistribute it and/or
;;; modify it under the terms of the GNU General Public License
;;; as published by the Free Software Foundation; either version 2
;;; of the License, or (at your option) any later version.
;;;
;;; This program is distributed in the hope that it will be useful,
;;; but WITHOUT ANY WARRANTY; without even the implied warranty of
;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
;;; GNU General Public License for more details.
;;;
;;; You should have received a copy of the GNU General Public License
;;; along with this program; if not, write to the Free Software
;;; Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.

(in-package "COMMON-LISP")

(defconstant array-total-size-limit #x1000000)
(defconstant array-rank-limit 8)

(defun make-array (dimensions &key
                              (element-type t)
                              (initial-element nil initial-element-p)
                              initial-contents adjustable fill-pointer
                              displaced-to displaced-index-offset)
  (%make-array dimensions element-type initial-element initial-element-p
               initial-contents adjustable fill-pointer displaced-to
               displaced-index-offset))

(defun array-row-major-index (array &rest subscripts)
  (%array-row-major-index array subscripts))

(defun %aset (array &rest stuff)
  (if (= (length stuff) 2)
      (%set-row-major-aref array (car stuff) (cadr stuff))
      (let ((subscripts (butlast stuff))
            (new-value (car (last stuff))))
        (%set-row-major-aref array (%array-row-major-index array subscripts)
                             new-value))))

(defsetf aref %aset)
(defsetf row-major-aref %set-row-major-aref)

(defun bit (bit-array &rest subscripts)
  (row-major-aref bit-array (%array-row-major-index bit-array subscripts)))

(defun sbit (simple-bit-array &rest subscripts)
  (row-major-aref simple-bit-array
      (%array-row-major-index simple-bit-array subscripts)))

(defsetf bit %aset)
(defsetf sbit %aset)