;;; Lisplab, matrix1-array.lisp
;;; Level1, treats normal lisp arrays as matrices

;;; 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 rows ((a array))
  (array-dimension a 0))

(defmethod cols ((a array))
  (array-dimension a 1))

(defmethod mref ((a array) row col)
  "Row major order"
  (aref a row col))

(defmethod (setf mref) (value (a array) row col)
  (setf (aref a row col) (convert value (element-type a)))) 

(defmethod make-matrix-instance ((x (eql 'array)) dim value)
  (make-array dim :initial-element value))