Univariate Hensel lifting now uses upoly.

[ginac.git] / ginac / tensor.h

diff --git a/ginac/tensor.h b/ginac/tensor.h
index ac0db7c18c307e5c4e43f7fcca1f9e3209bde2ea..33859b1122754508fcd86716aae63211919ff16b 100644 (file)
--- a/ginac/tensor.h
+++ b/ginac/tensor.h
@@ -3,7 +3,7 @@
  *  Interface to GiNaC's special tensors. */
 
 /*
- *  GiNaC Copyright (C) 1999-2005 Johannes Gutenberg University Mainz, Germany
+ *  GiNaC Copyright (C) 1999-2008 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
@@ -17,13 +17,14 @@
  *
  *  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
+ *  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
  */
 
 #ifndef __GINAC_TENSOR_H__
 #define __GINAC_TENSOR_H__
 
 #include "ex.h"
+#include "archive.h"
 
 namespace GiNaC {
 
@@ -35,10 +36,6 @@ class tensor : public basic
 {
        GINAC_DECLARE_REGISTERED_CLASS(tensor, basic)
 
-       // other constructors
-protected:
-       tensor(unsigned ti) : inherited(ti) {}
-
        // functions overriding virtual functions from base classes
 protected:
        unsigned return_type() const { return return_types::noncommutative_composite; }
@@ -60,14 +57,17 @@ class tensdelta : public tensor
 
        // functions overriding virtual functions from base classes
 public:
+       bool info(unsigned inf) const;
        ex eval_indexed(const basic & i) const;
        bool contract_with(exvector::iterator self, exvector::iterator other, exvector & v) const;
 
        // non-virtual functions in this class
 protected:
+       unsigned return_type() const { return return_types::commutative; }
        void do_print(const print_context & c, unsigned level) const;
        void do_print_latex(const print_latex & c, unsigned level) const;
 };
+GINAC_DECLARE_UNARCHIVER(tensdelta);
 
 
 /** This class represents a general metric tensor which can be used to
@@ -79,13 +79,16 @@ class tensmetric : public tensor
 
        // functions overriding virtual functions from base classes
 public:
+       bool info(unsigned inf) const;
        ex eval_indexed(const basic & i) const;
        bool contract_with(exvector::iterator self, exvector::iterator other, exvector & v) const;
 
        // non-virtual functions in this class
 protected:
+       unsigned return_type() const { return return_types::commutative; }
        void do_print(const print_context & c, unsigned level) const;
 };
+GINAC_DECLARE_UNARCHIVER(tensmetric);
 
 
 /** This class represents a Minkowski metric tensor. It has all the
@@ -102,10 +105,16 @@ public:
 
        // functions overriding virtual functions from base classes
 public:
+       bool info(unsigned inf) const;
        ex eval_indexed(const basic & i) const;
 
+       /** Save (a.k.a. serialize) object into archive. */
+       void archive(archive_node& n) const;
+       /** Read (a.k.a. deserialize) object from archive. */
+       void read_archive(const archive_node& n, lst& syms);
        // non-virtual functions in this class
 protected:
+       unsigned return_type() const { return return_types::commutative; }
        void do_print(const print_context & c, unsigned level) const;
        void do_print_latex(const print_latex & c, unsigned level) const;
 
@@ -113,6 +122,7 @@ protected:
 private:
        bool pos_sig; /**< If true, the metric is diag(-1,1,1...). Otherwise it is diag(1,-1,-1,...). */
 };
+GINAC_DECLARE_UNARCHIVER(minkmetric); 
 
 
 /** This class represents an antisymmetric spinor metric tensor which
@@ -125,14 +135,15 @@ class spinmetric : public tensmetric
 
        // functions overriding virtual functions from base classes
 public:
+       bool info(unsigned inf) const;
        ex eval_indexed(const basic & i) const;
        bool contract_with(exvector::iterator self, exvector::iterator other, exvector & v) const;
 
-       // non-virtual functions in this class
 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(spinmetric);
 
 
 /** This class represents the totally antisymmetric epsilon tensor. If
@@ -148,11 +159,17 @@ public:
 
        // functions overriding virtual functions from base classes
 public:
+       bool info(unsigned inf) const;
        ex eval_indexed(const basic & i) const;
        bool contract_with(exvector::iterator self, exvector::iterator other, exvector & v) const;
 
+       /** Save (a.k.a. serialize) object into archive. */
+       void archive(archive_node& n) const;
+       /** Read (a.k.a. deserialize) object from archive. */
+       void read_archive(const archive_node& n, lst& syms);
        // non-virtual functions in this class
 protected:
+       unsigned return_type() const { return return_types::commutative; }
        void do_print(const print_context & c, unsigned level) const;
        void do_print_latex(const print_latex & c, unsigned level) const;
 
@@ -161,6 +178,7 @@ private:
        bool minkowski; /**< If true, tensor is in Minkowski-type space. Otherwise it is in a Euclidean space. */
        bool pos_sig;   /**< If true, the metric is assumed to be diag(-1,1,1...). Otherwise it is diag(1,-1,-1,...). This is only relevant if minkowski = true. */
 };
+GINAC_DECLARE_UNARCHIVER(tensepsilon); 
 
 
 // utility functions