- rotate_31() and golden_hash_ratio() moved to utils.h

[ginac.git] / ginac / relational.h

diff --git a/ginac/relational.h b/ginac/relational.h
index 34c592cffd8d6bf7c4fcb3d6327d42b63dfead8e..7426e19ecea8af712554ba7ba9575fa1fc179e86 100644 (file)
--- a/ginac/relational.h
+++ b/ginac/relational.h
@@ -2,12 +2,31 @@
  *
  *  Interface to relations between expressions. */
 
  *
  *  Interface to relations between expressions. */
 

-#ifndef _RELATIONAL_H_
-#define _RELATIONAL_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
+ */

 
 

-class relational;
+#ifndef __GINAC_RELATIONAL_H__
+#define __GINAC_RELATIONAL_H__

 
 

-#include "basic.h"
+#include <ginac/basic.h>
+#include <ginac/ex.h>
+
+namespace GiNaC {

 
 /** This class holds a relation consisting of two expressions and a logical
  *  relation between them. */
 
 /** This class holds a relation consisting of two expressions and a logical
  *  relation between them. */


@@ -78,8 +97,12 @@ protected:
 extern const relational some_relational;
 extern type_info const & typeid_relational;
 
 extern const relational some_relational;
 extern type_info const & typeid_relational;
 

-#define ex_to_relational(X) static_cast<relational const &>(*(X).bp)
-
-#endif // ndef _RELATIONAL_H_
+// utility functions
+inline const relational &ex_to_relational(const ex &e)
+{
+       return static_cast<const relational &>(*e.bp);
+}

 
 

+} // namespace GiNaC

 
 

+#endif // ndef __GINAC_RELATIONAL_H__