qf_matrix.h

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/***************************************************************************
                               qf_matrix.h
                             ----------------
    begin                : Mon Jan 02 2006
    copyright            : (C) 2006 by Stefan Jahn
    email                : stefan@lkcc.org
 ***************************************************************************/

/***************************************************************************
 *                                                                         *
 *   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.                                   *
 *                                                                         *
 ***************************************************************************/

#ifndef _QF_MATRIX_H
#define _QF_MATRIX_H

class qf_matrix
{
 public:
  // constructor
  qf_matrix (unsigned int d) {
    data = (qf_double_t *) calloc (d * d, sizeof (qf_double_t));
    n = d;
  }

  // destructor
  ~qf_matrix () {
    free (data);
  }

  // accessor operators
  qf_double_t operator () (int r, int c) const {
    return data[r * n + c];
  }
  qf_double_t & operator () (int r, int c) {
    return data[r * n + c];
  }

  // size of matrix
  unsigned int n;

 private:
  qf_double_t * data;
};

#endif // _QF_MATRIX_H