3 * Interface to GiNaC's clifford objects. */
6 * GiNaC Copyright (C) 1999 Johannes Gutenberg University Mainz, Germany
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License as published by
10 * the Free Software Foundation; either version 2 of the License, or
11 * (at your option) any later version.
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
18 * You should have received a copy of the GNU General Public License
19 * along with this program; if not, write to the Free Software
20 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
23 #ifndef __GINAC_CLIFFORD_H__
24 #define __GINAC_CLIFFORD_H__
27 #include <ginac/indexed.h>
32 /** Base class for clifford object */
33 class clifford : public indexed
37 // default constructor, destructor, copy constructor assignment operator and helpers
41 clifford(clifford const & other);
42 clifford const & operator=(clifford const & other);
44 void copy(clifford const & other);
45 void destroy(bool call_parent);
49 explicit clifford(string const & initname);
51 // functions overriding virtual functions from base classes
53 basic * duplicate() const;
54 void printraw(ostream & os) const;
55 void printtree(ostream & os, unsigned indent) const;
56 void print(ostream & os, unsigned upper_precedence=0) const;
57 void printcsrc(ostream & os, unsigned type, unsigned upper_precedence=0) const;
58 bool info(unsigned inf) const;
60 int compare_same_type(basic const & other) const;
61 ex simplify_ncmul(exvector const & v) const;
62 unsigned calchash(void) const;
64 // new virtual functions which can be overridden by derived classes
67 // non-virtual functions in this class
69 void setname(string const & n);
71 string & autoname_prefix(void);
77 unsigned serial; // unique serial number for comparision
79 static unsigned next_serial;
84 extern const clifford some_clifford;
85 extern type_info const & typeid_clifford;
88 inline const clifford &ex_to_clifford(const ex &e)
90 return static_cast<const clifford &>(*e.bp);
95 #endif // ndef __GINAC_CLIFFORD_H__