*
* Interface to GiNaC's products of expressions. */
-#ifndef _MUL_H_
-#define _MUL_H_
+/*
+ * GiNaC Copyright (C) 1999-2002 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
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
-class mul;
+#ifndef __GINAC_MUL_H__
+#define __GINAC_MUL_H__
#include "expairseq.h"
+namespace GiNaC {
+
/** Product of expressions. */
class mul : public expairseq
{
- friend class add;
- friend class ncmul;
- friend class power;
-
-// member functions
-
- // default constructor, destructor, copy constructor assignment operator and helpers
-public:
- mul();
- ~mul();
- mul(mul const & other);
- mul const & operator=(mul const & other);
-protected:
- void copy(mul const & other);
- void destroy(bool call_parent);
-
- // other constructors
+ GINAC_DECLARE_REGISTERED_CLASS(mul, expairseq)
+
+ friend class add;
+ friend class ncmul;
+ friend class power;
+
+ // other ctors
public:
- mul(ex const & lh, ex const & rh);
- mul(exvector const & v);
- mul(epvector const & v);
- //mul(epvector const & v, bool do_not_canonicalize=0);
- mul(epvector const & v, ex const & oc);
- mul(epvector * vp, ex const & oc);
- mul(ex const & lh, ex const & mh, ex const & rh);
-
- // functions overriding virtual functions from bases classes
+ mul(const ex & lh, const ex & rh);
+ mul(const exvector & v);
+ mul(const epvector & v);
+ mul(const epvector & v, const ex & oc);
+ mul(epvector * vp, const ex & oc);
+ mul(const ex & lh, const ex & mh, const ex & rh);
+
+ // functions overriding virtual functions from base classes
public:
- basic * duplicate() const;
- void printraw(ostream & os) const;
- void print(ostream & os, unsigned upper_precedence) const;
- void printcsrc(ostream & os, unsigned type, unsigned upper_precedence) 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;
-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;
- bool expair_needs_further_processing(epp it);
- ex default_overall_coeff(void) const;
- void combine_overall_coeff(ex const & c);
- void combine_overall_coeff(ex const & c1, ex const & c2);
- bool can_make_flat(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
+ void print(const print_context & c, unsigned level = 0) const;
+ unsigned precedence(void) const {return 50;}
+ 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 evalf(int level=0) const;
+ ex evalm(void) const;
+ ex series(const relational & s, 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:
- epvector * expandchildren(unsigned options) const;
-
-// member variables
-
+ 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;
+ bool expair_needs_further_processing(epp it);
+ ex default_overall_coeff(void) const;
+ void combine_overall_coeff(const ex & c);
+ void combine_overall_coeff(const ex & c1, const ex & c2);
+ bool can_make_flat(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
protected:
- static unsigned precedence;
+ epvector * expandchildren(unsigned options) const;
};
-// global constants
+// utility functions
-extern const mul some_mul;
-extern type_info const & typeid_mul;
-
-#define ex_to_mul(X) static_cast<mul const &>(*(X).bp)
+/** Specialization of is_exactly_a<mul>(obj) for mul objects. */
+template<> inline bool is_exactly_a<mul>(const basic & obj)
+{
+ return obj.tinfo()==TINFO_mul;
+}
-#endif // ndef _MUL_H_
+} // namespace GiNaC
+#endif // ndef __GINAC_MUL_H__
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