* Interface to GiNaC's sums of expressions. */
/*
- * GiNaC Copyright (C) 1999-2001 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
GINAC_DECLARE_REGISTERED_CLASS(add, expairseq)
friend class mul;
- friend class ncmul;
friend class power;
// other constructors
add(const epvector & v, const ex & oc);
add(epvector * vp, const ex & oc);
- // functions overriding virtual functions from bases classes
+ // functions overriding virtual functions from base classes
public:
- void print(std::ostream & os, unsigned upper_precedence=0) const;
- void printraw(std::ostream & os) const;
- void printcsrc(std::ostream & os, unsigned type, unsigned upper_precedence=0) 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 symbol & s) const;
- int ldegree(const symbol & s) const;
- ex coeff(const symbol & s, int n=1) 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;
const ex & c) const;
ex recombine_pair_to_ex(const expair & 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;
};
// utility functions
-inline const add &ex_to_add(const ex &e)
+
+/** Specialization of is_exactly_a<add>(obj) for add objects. */
+template<> inline bool is_exactly_a<add>(const basic & obj)
{
- return static_cast<const add &>(*e.bp);
+ return obj.tinfo()==TINFO_add;
}
} // namespace GiNaC