source: trunk/j/src/org/armedbear/lisp/arrays.lisp @ 2734

Last change on this file since 2734 was 2734, checked in by piso, 19 years ago

(in-package "SYSTEM")

File size: 2.2 KB
Line 
1;;; arrays.lisp
2;;;
3;;; Copyright (C) 2003 Peter Graves
4;;; $Id: arrays.lisp,v 1.13 2003-07-02 19:02:08 piso Exp $
5;;;
6;;; This program is free software; you can redistribute it and/or
7;;; modify it under the terms of the GNU General Public License
8;;; as published by the Free Software Foundation; either version 2
9;;; of the License, or (at your option) any later version.
10;;;
11;;; This program is distributed in the hope that it will be useful,
12;;; but WITHOUT ANY WARRANTY; without even the implied warranty of
13;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
14;;; GNU General Public License for more details.
15;;;
16;;; You should have received a copy of the GNU General Public License
17;;; along with this program; if not, write to the Free Software
18;;; Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
19
20(in-package "SYSTEM")
21
22(defconstant array-total-size-limit #x1000000)
23(defconstant array-rank-limit 8)
24
25(defun make-array (dimensions &key
26                              (element-type t)
27                              (initial-element nil initial-element-p)
28                              initial-contents adjustable fill-pointer
29                              displaced-to displaced-index-offset)
30  (%make-array dimensions element-type initial-element initial-element-p
31               initial-contents adjustable fill-pointer displaced-to
32               displaced-index-offset))
33
34(defun array-row-major-index (array &rest subscripts)
35  (%array-row-major-index array subscripts))
36
37(defun %aset (array &rest stuff)
38  (if (= (length stuff) 2)
39      (%set-row-major-aref array (car stuff) (cadr stuff))
40      (let ((subscripts (butlast stuff))
41            (new-value (car (last stuff))))
42        (%set-row-major-aref array (%array-row-major-index array subscripts)
43                             new-value))))
44
45(defsetf aref %aset)
46(defsetf row-major-aref %set-row-major-aref)
47
48(defun bit (bit-array &rest subscripts)
49  (row-major-aref bit-array (%array-row-major-index bit-array subscripts)))
50
51(defun sbit (simple-bit-array &rest subscripts)
52  (row-major-aref simple-bit-array
53      (%array-row-major-index simple-bit-array subscripts)))
54
55(defsetf bit %aset)
56(defsetf sbit %aset)
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