implemented operator-> for the iterators

[ginac.git] / ginac / ncmul.h

diff --git a/ginac/ncmul.h b/ginac/ncmul.h
index b5cc1669281670c872f120d31b7a0016c24b02ae..0139a63fe74dce0f8be73f16763bf52d3e110213 100644 (file)
--- a/ginac/ncmul.h
+++ b/ginac/ncmul.h
@@ -3,7 +3,7 @@
  *  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
@@ -25,101 +25,78 @@
 
 #include "exprseq.h"
 
-#ifndef NO_NAMESPACE_GINAC
 namespace GiNaC {
-#endif // ndef NO_NAMESPACE_GINAC
 
 /** Non-commutative product of expressions. */
 class ncmul : public exprseq
 {
-    GINAC_DECLARE_REGISTERED_CLASS(ncmul, exprseq)
+       GINAC_DECLARE_REGISTERED_CLASS(ncmul, exprseq)
 
-    friend class power;
-    friend ex nonsimplified_ncmul(const exvector & v);
-    friend ex simplified_ncmul(const exvector & v);
+       friend class power;
+       friend ex reeval_ncmul(const exvector & v);
+       friend ex hold_ncmul(const exvector & v);
 
 // member functions
 
-    // default constructor, destructor, copy constructor assignment operator and helpers
+       // other constructors
 public:
-    ncmul();
-    ~ncmul();
-    ncmul(const ncmul & other);
-    const ncmul & operator=(const ncmul & other);
-protected:
-    void copy(const ncmul & other);
-    void destroy(bool call_parent);
-
-    // other constructors
-public:
-    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(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(const symbol & s) const;
-    int ldegree(const symbol & s) const;
-    ex expand(unsigned options=0) const;
-    ex coeff(const symbol & s, int n=1) const;
-    ex eval(int level=0) const;
-    ex subs(const lst & ls, const lst & lr) const;
-    exvector get_indices(void) const;
-    ex thisexprseq(const exvector & 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:
-    ex derivative(const symbol & s) const;
-    int compare_same_type(const basic & 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(const ex & e) const;
-    void append_factors(exvector & v, const ex & 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:
-    const exvector & get_factors(void) const;
-
-// member variables
-
-protected:
-    static unsigned precedence;
+       const exvector & get_factors() const;
 };
 
-// global constants
-
-extern const ncmul some_ncmul;
-extern const type_info & typeid_ncmul;
-
 // friend funtions 
 
-ex nonsimplified_ncmul(const exvector & v);
-ex simplified_ncmul(const exvector & 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_NAMESPACE_GINAC
 } // namespace GiNaC
-#endif // ndef NO_NAMESPACE_GINAC
 
 #endif // ndef __GINAC_NCMUL_H__