* Interface to GiNaC's index carrying objects. */
/*
- * GiNaC Copyright (C) 1999 Johannes Gutenberg University Mainz, Germany
+ * GiNaC Copyright (C) 1999-2001 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
#define __GINAC_INDEXED_H__
#include <string>
-#include <ginac/exprseq.h>
+#include "exprseq.h"
-#ifndef NO_GINAC_NAMESPACE
namespace GiNaC {
-#endif // ndef NO_GINAC_NAMESPACE
-/** Base class for non-commutative indexed objects */
+
+/** Base class for objects with indices. */
class indexed : public exprseq
{
-// member functions
+ GINAC_DECLARE_REGISTERED_CLASS(indexed, exprseq)
- // default constructor, destructor, copy constructor assignment operator and helpers
+ // other constructors
public:
- indexed();
- ~indexed();
- indexed(indexed const & other);
- indexed const & operator=(indexed const & other);
-protected:
- void copy(indexed const & other);
- void destroy(bool call_parent);
+ indexed(const ex & i1);
+ indexed(const ex & i1, const ex & i2);
+ indexed(const ex & i1, const ex & i2, const ex & i3);
+ indexed(const ex & i1, const ex & i2, const ex & i3, const ex & i4);
+ indexed(const exvector & iv);
+ indexed(exvector * iv);
- // other constructors
+ // functions overriding virtual functions from base classes
public:
- indexed(ex const & i1);
- indexed(ex const & i1, ex const & i2);
- indexed(ex const & i1, ex const & i2, ex const & i3);
- indexed(exvector const & iv);
- indexed(exvector * iv);
+ void printraw(std::ostream & os) const;
+ void printtree(std::ostream & os, unsigned indent) const;
+ void print(std::ostream & os, unsigned upper_precedence=0) const;
+ void printcsrc(std::ostream & os, unsigned type, unsigned upper_precedence) const;
+ bool info(unsigned inf) const;
+
+ /** Return the vector of indices on this object. */
+ exvector get_indices(void) const {return seq;}
- // functions overriding virtual functions from base classes
-public:
- basic * duplicate() const;
- void printraw(ostream & os) const;
- void printtree(ostream & os, unsigned indent) const;
- void print(ostream & os, unsigned upper_precedence=0) const;
- void printcsrc(ostream & os, unsigned type, unsigned upper_precedence) const;
- bool info(unsigned inf) const;
- ex diff(symbol const & s) const;
- exvector get_indices(void) const;
protected:
- int compare_same_type(basic const & other) const;
- bool is_equal_same_type(basic const & other) const;
- unsigned return_type(void) const;
- unsigned return_type_tinfo(void) const;
- ex thisexprseq(exvector const & v) const;
- ex thisexprseq(exvector * vp) const;
+ ex derivative(const symbol & s) const;
+ bool is_equal_same_type(const basic & other) const;
+ unsigned return_type(void) const;
+ unsigned return_type_tinfo(void) const;
+ ex thisexprseq(const exvector & v) const;
+ ex thisexprseq(exvector * vp) const;
- // new virtual functions which can be overridden by derived classes
- // none
-
- // non-virtual functions in this class
+ // new virtual functions which can be overridden by derived classes
+ // none
+
+ // non-virtual functions in this class
protected:
- void printrawindices(ostream & os) const;
- void printtreeindices(ostream & os, unsigned indent) const;
- void printindices(ostream & os) const;
- bool all_of_type_idx(void) const;
+ void printrawindices(std::ostream & os) const;
+ void printtreeindices(std::ostream & os, unsigned indent) const;
+ void printindices(std::ostream & os) const;
+ bool all_of_type_idx(void) const;
// member variables
- // none
+ // none
};
-// global constants
-
-extern const indexed some_indexed;
-extern type_info const & typeid_indexed;
-
// utility functions
inline const indexed &ex_to_indexed(const ex &e)
{
return static_cast<const indexed &>(*e.bp);
}
-#ifndef NO_GINAC_NAMESPACE
} // namespace GiNaC
-#endif // ndef NO_GINAC_NAMESPACE
#endif // ndef __GINAC_INDEXED_H__