X-Git-Url: https://www.ginac.de/ginac.git//ginac.git?p=ginac.git;a=blobdiff_plain;f=ginac%2Findexed.h;h=ad18ddb55f91c568e1b09f727a4f8b814ff59329;hp=df05429e3eaa87a539c045c8e430c31939f6807d;hb=34704348ad3e512010cbf85b6a9dee9fff22cd66;hpb=0cf43f3096cbcfc7472ff9c8927c6eb74f2eeb8c

diff --git a/ginac/indexed.h b/ginac/indexed.h
index df05429e..ad18ddb5 100644
--- a/ginac/indexed.h
+++ b/ginac/indexed.h
@@ -3,7 +3,7 @@
  *  Interface to GiNaC's indexed expressions. */
 
 /*
- *  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
@@ -42,6 +42,7 @@ class indexed : public exprseq
 
 	friend ex simplify_indexed(const ex & e, exvector & free_indices, exvector & dummy_indices, const scalar_products & sp);
 	friend ex simplify_indexed_product(const ex & e, exvector & free_indices, exvector & dummy_indices, const scalar_products & sp);
+	friend bool reposition_dummy_indices(ex & e, exvector & variant_dummy_indices, exvector & moved_indices);
 
 	// other constructors
 public:
@@ -143,14 +144,13 @@ public:
 	// functions overriding virtual functions from base classes
 public:
 	void print(const print_context & c, unsigned level = 0) const;
+	unsigned precedence(void) const {return 55;}
 	bool info(unsigned inf) const;
 	ex eval(int level = 0) const;
-	int degree(const ex & s) const;
-	int ldegree(const ex & s) const;
-	ex coeff(const ex & s, int n = 1) const;
 	exvector get_free_indices(void) const;
 
 protected:
+	ex derivative(const symbol & s) const;
 	ex thisexprseq(const exvector & v) const;
 	ex thisexprseq(exvector * vp) const;
 	unsigned return_type(void) const { return return_types::commutative; }
@@ -234,13 +234,6 @@ private:
 
 // utility functions
 
-/** Return the indexed object handled by an ex.
- *  This is unsafe: you need to check the type first. */
-inline const indexed &ex_to_indexed(const ex &e)
-{
-	return static_cast<const indexed &>(*e.bp);
-}
-
 /** Specialization of is_exactly_a<indexed>(obj) for indexed objects. */
 template<> inline bool is_exactly_a<indexed>(const basic & obj)
 {