* Interface to GiNaC's sums of expressions. */
/*
- * 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
#ifndef __GINAC_ADD_H__
#define __GINAC_ADD_H__
-#include <ginac/expairseq.h>
+#include "expairseq.h"
namespace GiNaC {
/** Sum of expressions. */
class add : public expairseq
{
- friend class mul;
- friend class ncmul;
- friend class power;
-
-// member functions
-
- // default constructor, destructor, copy constructor assignment operator and helpers
-public:
- add();
- ~add();
- add(add const & other);
- add const & operator=(add const & other);
-protected:
- void copy(add const & other);
- void destroy(bool call_parent);
-
- // other constructors
+ GINAC_DECLARE_REGISTERED_CLASS(add, expairseq)
+
+ friend class mul;
+ friend class ncmul;
+ friend class power;
+
+ // other constructors
public:
- add(ex const & lh, ex const & rh);
- add(exvector const & v);
- add(epvector const & v);
- //add(epvector const & v, bool do_not_canonicalize=0);
- add(epvector const & v, ex const & oc);
- add(epvector * vp, ex const & oc);
-
- // functions overriding virtual functions from bases classes
+ add(const ex & lh, const ex & rh);
+ add(const exvector & v);
+ add(const epvector & v);
+ add(const epvector & v, const ex & oc);
+ add(epvector * vp, const ex & oc);
+
+ // functions overriding virtual functions from base classes
public:
- basic * duplicate() const;
- void printraw(ostream & os) const;
- void print(ostream & os, unsigned upper_precedence=0) const;
- void printcsrc(ostream & os, unsigned type, unsigned upper_precedence=0) const;
- bool info(unsigned inf) const;
- int degree(symbol const & s) const;
- int ldegree(symbol const & s) const;
- ex coeff(symbol const & s, int const n=1) const;
- ex eval(int level=0) const;
- ex diff(symbol const & s) const;
- ex series(symbol const & s, ex const & point, int order) const;
- ex normal(lst &sym_lst, lst &repl_lst, int level=0) const;
- numeric integer_content(void) const;
- ex smod(numeric const &xi) const;
- numeric max_coefficient(void) const;
- exvector get_indices(void) const;
- ex simplify_ncmul(exvector const & v) const;
+ void print(const print_context & c, unsigned level = 0) const;
+ unsigned precedence(void) const {return 40;}
+ bool info(unsigned inf) const;
+ int degree(const ex & s) const;
+ int ldegree(const ex & s) const;
+ ex coeff(const ex & s, int n=1) const;
+ ex eval(int level=0) const;
+ ex evalm(void) const;
+ ex series(const relational & r, int order, unsigned options = 0) const;
+ ex normal(lst &sym_lst, lst &repl_lst, int level=0) const;
+ numeric integer_content(void) const;
+ ex smod(const numeric &xi) const;
+ numeric max_coefficient(void) const;
+ exvector get_free_indices(void) const;
+ ex simplify_ncmul(const exvector & v) 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 thisexpairseq(epvector const & v, ex const & oc) const;
- ex thisexpairseq(epvector * vp, ex const & oc) const;
- void printpair(ostream & os, expair const & p,
- unsigned upper_precedence) const;
- expair split_ex_to_pair(ex const & e) const;
- expair combine_ex_with_coeff_to_pair(ex const & e,
- ex const & c) const;
- expair combine_pair_with_coeff_to_pair(expair const & p,
- ex const & c) const;
- ex recombine_pair_to_ex(expair const & p) const;
- ex expand(unsigned options=0) const;
-
- // new virtual functions which can be overridden by derived classes
- // none
-
- // non-virtual functions in this class
- // none
-
-// member variables
-
-protected:
- static unsigned precedence;
+ 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 thisexpairseq(const epvector & v, const ex & oc) const;
+ ex thisexpairseq(epvector * vp, const ex & oc) const;
+ expair split_ex_to_pair(const ex & e) const;
+ expair combine_ex_with_coeff_to_pair(const ex & e,
+ const ex & c) const;
+ expair combine_pair_with_coeff_to_pair(const expair & p,
+ const ex & c) const;
+ ex recombine_pair_to_ex(const expair & p) const;
+ ex expand(unsigned options=0) const;
};
-// global constants
-
-extern const add some_add;
-extern type_info const & typeid_add;
-
// utility functions
+
+/** Return the add object handled by an ex. Deprecated: use ex_to<add>().
+ * This is unsafe: you need to check the type first. */
inline const add &ex_to_add(const ex &e)
{
return static_cast<const add &>(*e.bp);
}
+/** Specialization of is_exactly_a<add>(obj) for add objects. */
+template<> inline bool is_exactly_a<add>(const basic & obj)
+{
+ return obj.tinfo()==TINFO_add;
+}
+
} // namespace GiNaC
#endif // ndef __GINAC_ADD_H__