;;; Lisplab, vector1-array.lisp
;;; Level1, treats normal lisp arrays as vectors

;;; Copyright (C) 2012 Joern Inge Vestgaarden
;;;
;;; 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.,
;;; 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.

(in-package :lisplab)

(defmethod vector-p ((a array))
  "True for any array through row-major-aref"
  t)

(defmethod dim ((a array) &optional axis)
  (if axis
      (array-dimension a axis)
      (array-dimensions a)))

(defmethod size ((a array))
  (reduce #'* (dim a)))

(defmethod rank ((a array))
  (array-rank a))

(defmethod element-type ((a array))
  "Gets the element type of the array"
  (array-element-type a))

(defmethod vref ((a array) idx)
  "Row major order"
  (row-major-aref a idx))

(defmethod (setf vref) (value (a array) idx)
  (setf (row-major-aref a idx) value))