X-Git-Url: https://www.ginac.de/ginac.git//ginac.git?p=ginac.git;a=blobdiff_plain;f=ginac%2Ftensor.h;h=d33603ae8e30133c51a1f7886eab79dad14ec91d;hp=76956c7eed138f5547c5c425c7fd42a11749514f;hb=bc80f7d97d0dc2c74606b8c2e64e50530a685ba0;hpb=6d225ee55693c0617d254e6fa283c00c71bd2919

diff --git a/ginac/tensor.h b/ginac/tensor.h
index 76956c7e..d33603ae 100644
--- a/ginac/tensor.h
+++ b/ginac/tensor.h
@@ -3,7 +3,7 @@
  *  Interface to GiNaC's special tensors. */
 
 /*
- *  GiNaC Copyright (C) 1999-2004 Johannes Gutenberg University Mainz, Germany
+ *  GiNaC Copyright (C) 1999-2005 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
@@ -17,7 +17,7 @@
  *
  *  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__
@@ -37,7 +37,7 @@ class tensor : public basic
 
 	// other constructors
 protected:
-	tensor(unsigned ti) : inherited(ti) {}
+	tensor(tinfo_t ti) : inherited(ti) {}
 
 	// functions overriding virtual functions from base classes
 protected:
@@ -60,11 +60,13 @@ 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;
 };
@@ -79,11 +81,13 @@ 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;
 };
 
@@ -102,10 +106,12 @@ public:
 
 	// functions overriding virtual functions from base classes
 public:
+	bool info(unsigned inf) const;
 	ex eval_indexed(const basic & i) 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;
 
@@ -125,6 +131,7 @@ 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;
 
@@ -148,11 +155,13 @@ 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;
 
 	// 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;