mentioned the imaginary unit 'I'

[ginac.git] / ginac / clifford.h

diff --git a/ginac/clifford.h b/ginac/clifford.h
index 0233ba0ec38ca05cd542e30b43288bcca0c61a57..2d1680c2604ea507c7a2bcd7d871337c7f1caf56 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) 1999-2001 Johannes Gutenberg University Mainz, Germany
+ *  GiNaC Copyright (C) 1999-2002 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
@@ -48,7 +48,11 @@ public:
        clifford(unsigned char rl, exvector * vp); // vp will be deleted
 
        // functions overriding virtual functions from base classes
+public:
+       void print(const print_context & c, unsigned level = 0) const;
+
 protected:
+       bool match_same_type(const basic & other) const;
        ex simplify_ncmul(const exvector & v) const;
        ex thisexprseq(const exvector & v) const;
        ex thisexprseq(exvector * vp) const;
@@ -70,7 +74,7 @@ class diracone : public tensor
 {
        GINAC_DECLARE_REGISTERED_CLASS(diracone, tensor)
 
-       // functions overriding virtual functions from bases classes
+       // functions overriding virtual functions from base classes
 public:
        void print(const print_context & c, unsigned level = 0) const;
 };
@@ -81,7 +85,7 @@ class diracgamma : public tensor
 {
        GINAC_DECLARE_REGISTERED_CLASS(diracgamma, tensor)
 
-       // functions overriding virtual functions from bases classes
+       // functions overriding virtual functions from base classes
 public:
        void print(const print_context & c, unsigned level = 0) const;
        bool contract_with(exvector::iterator self, exvector::iterator other, exvector & v) const;
@@ -94,7 +98,7 @@ class diracgamma5 : public tensor
 {
        GINAC_DECLARE_REGISTERED_CLASS(diracgamma5, tensor)
 
-       // functions overriding virtual functions from bases classes
+       // functions overriding virtual functions from base classes
 public:
        void print(const print_context & c, unsigned level = 0) const;
 };
@@ -102,13 +106,6 @@ public:
 
 // global functions
 
-/** Return the clifford object handled by an ex.  Deprecated: use ex_to<clifford>().
- *  This is unsafe: you need to check the type first. */
-inline const clifford &ex_to_clifford(const ex &e)
-{
-       return static_cast<const clifford &>(*e.bp);
-}
-
 /** Specialization of is_exactly_a<clifford>(obj) for clifford objects. */
 template<> inline bool is_exactly_a<clifford>(const basic & obj)
 {