Update copyright statements.

[ginac.git] / ginac / clifford.h

diff --git a/ginac/clifford.h b/ginac/clifford.h
index 6b74a46874df441e0d4ed1f69bae94dd8bf223fd..cac118e38ffa0a2320612e8d8519c2c046ed2326 100644 (file)
--- a/ginac/clifford.h
+++ b/ginac/clifford.h
@@ -3,7 +3,7 @@
  *  Interface to GiNaC's clifford algebra (Dirac gamma) objects. */
 
 /*
- *  GiNaC Copyright (C) 1999-2008 Johannes Gutenberg University Mainz, Germany
+ *  GiNaC Copyright (C) 1999-2014 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
@@ -20,8 +20,8 @@
  *  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
  */
 
-#ifndef __GINAC_CLIFFORD_H__
-#define __GINAC_CLIFFORD_H__
+#ifndef GINAC_CLIFFORD_H
+#define GINAC_CLIFFORD_H
 
 #include "indexed.h"
 #include "tensor.h"
@@ -32,7 +32,6 @@
 
 namespace GiNaC {
 
-
 /** This class holds an object representing an element of the Clifford
  *  algebra (the Dirac gamma matrices). These objects only carry Lorentz
  *  indices. Spinor indices are hidden. A representation label (an unsigned
@@ -53,6 +52,8 @@ public:
        // functions overriding virtual functions from base classes
 public:
        unsigned precedence() const { return 65; }
+       void archive(archive_node& n) const;
+       void read_archive(const archive_node& n, lst& sym_lst);
 protected:
        ex eval_ncmul(const exvector & v) const;
        bool match_same_type(const basic & other) const;
@@ -83,6 +84,7 @@ protected:
        ex metric; /**< Metric of the space, all constructors make it an indexed object */
        int commutator_sign; /**< It is the sign in the definition e~i e~j +/- e~j e~i = B(i, j) + B(j, i)*/
 };
+GINAC_DECLARE_UNARCHIVER(clifford); 
 
 /** This class represents the Clifford algebra unity element. */
 class diracone : public tensor
@@ -94,6 +96,7 @@ protected:
        void do_print(const print_context & c, unsigned level) const;
        void do_print_latex(const print_latex & c, unsigned level) const;
 };
+GINAC_DECLARE_UNARCHIVER(diracone);
 
 
 /** This class represents the Clifford algebra generators (units). */
@@ -110,6 +113,7 @@ protected:
        void do_print(const print_context & c, unsigned level) const;
        void do_print_latex(const print_latex & c, unsigned level) const;
 };
+GINAC_DECLARE_UNARCHIVER(cliffordunit);
 
 
 /** This class represents the Dirac gamma Lorentz vector. */
@@ -126,6 +130,7 @@ protected:
        void do_print(const print_context & c, unsigned level) const;
        void do_print_latex(const print_latex & c, unsigned level) const;
 };
+GINAC_DECLARE_UNARCHIVER(diracgamma);
 
 
 /** This class represents the Dirac gamma5 object which anticommutates with
@@ -142,6 +147,7 @@ protected:
        void do_print(const print_context & c, unsigned level) const;
        void do_print_latex(const print_latex & c, unsigned level) const;
 };
+GINAC_DECLARE_UNARCHIVER(diracgamma5);
 
 
 /** This class represents the Dirac gammaL object which behaves like
@@ -158,6 +164,7 @@ protected:
        void do_print(const print_context & c, unsigned level) const;
        void do_print_latex(const print_latex & c, unsigned level) const;
 };
+GINAC_DECLARE_UNARCHIVER(diracgammaL);
 
 
 /** This class represents the Dirac gammaL object which behaves like
@@ -174,6 +181,7 @@ protected:
        void do_print(const print_context & c, unsigned level) const;
        void do_print_latex(const print_latex & c, unsigned level) const;
 };
+GINAC_DECLARE_UNARCHIVER(diracgammaR);
 
 
 // global functions
@@ -294,7 +302,7 @@ ex remove_dirac_ONE(const ex & e, unsigned char rl = 0, unsigned options = 0);
  *
  *  @param e Expression to be processed
  *  @ignore_ONE defines if clifford_ONE should be ignored in the search*/
-char clifford_max_label(const ex & e, bool ignore_ONE = false);
+int clifford_max_label(const ex & e, bool ignore_ONE = false);
 
 /** Calculation of the norm in the Clifford algebra. */
 ex clifford_norm(const ex & e);
@@ -353,4 +361,4 @@ ex clifford_moebius_map(const ex & M, const ex & v, const ex & G, unsigned char
 
 } // namespace GiNaC
 
-#endif // ndef __GINAC_CLIFFORD_H__
+#endif // ndef GINAC_CLIFFORD_H