*
* Interface to GiNaC's symbolic objects. */
-#ifndef _SYMBOL_H_
-#define _SYMBOL_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 <string>
+#ifndef __GINAC_SYMBOL_H__
+#define __GINAC_SYMBOL_H__
-class symbol;
+#include <string>
+#include <ginac/basic.h>
+#include <ginac/ex.h>
-#include "basic.h"
-#include "ex.h"
+#ifndef NO_GINAC_NAMESPACE
+namespace GiNaC {
+#endif // ndef NO_GINAC_NAMESPACE
/** Basic CAS symbol. It has a name because it must know how to output itself.
* It may be assigned an expression, but this feature is only intended for
// functions overriding virtual functions from base classes
public:
basic * duplicate() const;
+ void print(ostream & os, unsigned upper_precedence=0) const;
void printraw(ostream & os) const;
void printtree(ostream & os, unsigned indent) const;
- void print(ostream & os, unsigned upper_precedence=0) const;
void printcsrc(ostream & os, unsigned type, unsigned upper_precedence=0) const;
bool info(unsigned inf) const;
ex expand(unsigned options=0) const;
extern const symbol some_symbol;
extern type_info const & typeid_symbol;
-// macros
-
-#define ex_to_symbol(X) static_cast<symbol const &>(*(X).bp)
+// utility functions
+inline const symbol &ex_to_symbol(const ex &e)
+{
+ return static_cast<const symbol &>(*e.bp);
+}
// wrapper functions around member functions
inline void unassign(symbol & symarg)
inline int ldegree(symbol const & a, symbol const & s)
{ return a.ldegree(s); }
-#endif // ndef _SYMBOL_H_
+#ifndef NO_GINAC_NAMESPACE
+} // namespace GiNaC
+#endif // ndef NO_GINAC_NAMESPACE
+
+#endif // ndef __GINAC_SYMBOL_H__