* Happy New Year(s)!

[ginac.git] / ginac / tensor.h

diff --git a/ginac/tensor.h b/ginac/tensor.h
index 8078b0937a130aec0a622a8ea1a85efb47587edd..162ca0fede85e8660187f8bc2ed4c4ddfe7755c7 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) 1999-2007 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
@@ -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;