X-Git-Url: https://www.ginac.de/ginac.git//ginac.git?p=ginac.git;a=blobdiff_plain;f=ginac%2Frelational.h;h=7426e19ecea8af712554ba7ba9575fa1fc179e86;hp=34c592cffd8d6bf7c4fcb3d6327d42b63dfead8e;hb=8bcccf834ad41e94a1a4f3a0304c2945b228b4f4;hpb=6b3768e8c544739ae53321539cb4d1e3112ded1b

diff --git a/ginac/relational.h b/ginac/relational.h
index 34c592cf..7426e19e 100644
--- a/ginac/relational.h
+++ b/ginac/relational.h
@@ -2,12 +2,31 @@
  *
  *  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. */
@@ -78,8 +97,12 @@ protected:
 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__