*
* Interface to GiNaC's non-commutative products of expressions. */
-#ifndef _NCMUL_H_
-#define _NCMUL_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
+ */
-#include "exprseq.h"
+#ifndef __GINAC_NCMUL_H__
+#define __GINAC_NCMUL_H__
-class ncmul;
+#include <ginac/exprseq.h>
+
+namespace GiNaC {
/** Non-commutative product of expressions. */
class ncmul : public exprseq
ex nonsimplified_ncmul(exvector const & v);
ex simplified_ncmul(exvector const & v);
-#define ex_to_ncmul(X) static_cast<ncmul const &>(*(X).bp)
+// utility functions
+inline const ncmul &ex_to_ncmul(const ex &e)
+{
+ return static_cast <const ncmul &>(*e.bp);
+}
-#endif // ndef _NCMUL_H_
+} // namespace GiNaC
+#endif // ndef __GINAC_NCMUL_H__