* Interface to GiNaC's non-commutative products of expressions. */
/*
- * GiNaC Copyright (C) 1999-2000 Johannes Gutenberg University Mainz, Germany
+ * GiNaC Copyright (C) 1999-2003 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
#ifndef __GINAC_NCMUL_H__
#define __GINAC_NCMUL_H__
-#include <ginac/exprseq.h>
+#include "exprseq.h"
-#ifndef NO_GINAC_NAMESPACE
namespace GiNaC {
-#endif // ndef NO_GINAC_NAMESPACE
/** Non-commutative product of expressions. */
class ncmul : public exprseq
{
- friend class power;
- friend ex nonsimplified_ncmul(exvector const & v);
- friend ex simplified_ncmul(exvector const & v);
+ GINAC_DECLARE_REGISTERED_CLASS(ncmul, exprseq)
-// member functions
+ friend class power;
+ friend ex reeval_ncmul(const exvector & v);
+ friend ex hold_ncmul(const exvector & v);
- // default constructor, destructor, copy constructor assignment operator and helpers
-public:
- ncmul();
- ~ncmul();
- ncmul(ncmul const & other);
- ncmul const & operator=(ncmul const & other);
-protected:
- void copy(ncmul const & other);
- void destroy(bool call_parent);
+// member functions
- // other constructors
+ // other constructors
public:
- ncmul(ex const & lh, ex const & rh);
- ncmul(ex const & f1, ex const & f2, ex const & f3);
- ncmul(ex const & f1, ex const & f2, ex const & f3,
- ex const & f4);
- ncmul(ex const & f1, ex const & f2, ex const & f3,
- ex const & f4, ex const & f5);
- ncmul(ex const & f1, ex const & f2, ex const & f3,
- ex const & f4, ex const & f5, ex const & f6);
- ncmul(exvector const & v, bool discardable=false);
- ncmul(exvector * vp); // vp will be deleted
-
- // functions overriding virtual functions from bases classes
+ ncmul(const ex & lh, const ex & rh);
+ ncmul(const ex & f1, const ex & f2, const ex & f3);
+ ncmul(const ex & f1, const ex & f2, const ex & f3,
+ const ex & f4);
+ ncmul(const ex & f1, const ex & f2, const ex & f3,
+ const ex & f4, const ex & f5);
+ ncmul(const ex & f1, const ex & f2, const ex & f3,
+ const ex & f4, const ex & f5, const ex & f6);
+ ncmul(const exvector & v, bool discardable=false);
+ ncmul(std::auto_ptr<exvector> vp);
+
+ // functions overriding virtual functions from base classes
public:
- basic * duplicate() const;
- void print(ostream & os, unsigned upper_precedence) const;
- void printraw(ostream & os) const;
- void printcsrc(ostream & os, unsigned upper_precedence) const;
- bool info(unsigned inf) const;
- int degree(symbol const & s) const;
- int ldegree(symbol const & s) const;
- ex expand(unsigned options=0) const;
- ex coeff(symbol const & s, int const n=1) const;
- ex eval(int level=0) const;
- ex diff(symbol const & s) const;
- ex subs(lst const & ls, lst const & lr) const;
- exvector get_indices(void) const;
- ex thisexprseq(exvector const & v) const;
- ex thisexprseq(exvector * vp) const;
+ unsigned precedence() const {return 50;}
+ bool info(unsigned inf) const;
+ int degree(const ex & s) const;
+ int ldegree(const ex & s) const;
+ ex expand(unsigned options=0) const;
+ ex coeff(const ex & s, int n=1) const;
+ ex eval(int level=0) const;
+ ex evalm() const;
+ exvector get_free_indices() const;
+ ex thiscontainer(const exvector & v) const;
+ ex thiscontainer(std::auto_ptr<exvector> vp) const;
+
protected:
- int compare_same_type(basic const & other) const;
- unsigned return_type(void) const;
- unsigned return_type_tinfo(void) const;
-
- // new virtual functions which can be overridden by derived classes
- // none
-
- // non-virtual functions in this class
+ ex derivative(const symbol & s) const;
+ unsigned return_type() const;
+ unsigned return_type_tinfo() const;
+
+ // new virtual functions which can be overridden by derived classes
+ // none
+
+ // non-virtual functions in this class
protected:
- unsigned count_factors(ex const & e) const;
- void append_factors(exvector & v, ex const & e) const;
- exvector expandchildren(unsigned options) const;
+ void do_print(const print_context & c, unsigned level) const;
+ void do_print_csrc(const print_context & c, unsigned level) const;
+ size_t count_factors(const ex & e) const;
+ void append_factors(exvector & v, const ex & e) const;
+ exvector expandchildren(unsigned options) const;
public:
- exvector const & get_factors(void) const;
-
-// member variables
-
-protected:
- static unsigned precedence;
+ const exvector & get_factors() const;
};
-// global constants
-
-extern const ncmul some_ncmul;
-extern type_info const & typeid_ncmul;
-
// friend funtions
-ex nonsimplified_ncmul(exvector const & v);
-ex simplified_ncmul(exvector const & v);
+ex reeval_ncmul(const exvector & v);
+ex hold_ncmul(const exvector & v);
// utility functions
-inline const ncmul &ex_to_ncmul(const ex &e)
+
+/** Specialization of is_exactly_a<ncmul>(obj) for ncmul objects. */
+template<> inline bool is_exactly_a<ncmul>(const basic & obj)
{
- return static_cast <const ncmul &>(*e.bp);
+ return obj.tinfo()==TINFO_ncmul;
}
-#ifndef NO_GINAC_NAMESPACE
} // namespace GiNaC
-#endif // ndef NO_GINAC_NAMESPACE
#endif // ndef __GINAC_NCMUL_H__
git://www.ginac.de / ginac.git / blobdiff