*
* Interface to GiNaC's lorentz indices. */
-#ifndef _LORENTZIDX_H_
-#define _LORENTZIDX_H_
+/*
+ * GiNaC Copyright (C) 1999 Johannes Gutenberg University Mainz, Germany
+ *
+ * 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
+ */
+
+#ifndef __GINAC_LORENTZIDX_H__
+#define __GINAC_LORENTZIDX_H__
#include <string>
#include <vector>
+#include <ginac/idx.h>
-#include "idx.h"
+namespace GiNaC {
class lorentzidx : public idx
{
extern const lorentzidx some_lorentzidx;
extern type_info const & typeid_lorentzidx;
-// macros
+// utility functions
+inline const lorentzidx &ex_to_lorentzidx(const ex &e)
+{
+ return static_cast<const lorentzidx &>(*e.bp);
+}
-#define ex_to_lorentzidx(X) (static_cast<lorentzidx const &>(*(X).bp))
+} // namespace GiNaC
-#endif // ndef _LORENTZIDX_H_
+#endif // ndef __GINAC_LORENTZIDX_H__