Univariate Hensel lifting now uses upoly.

[ginac.git] / ginac / power.h

diff --git a/ginac/power.h b/ginac/power.h
index 4e1df9fb87bc34d9fb0f5d245eaa72faf03e5e98..4a22ef445c151787361494bf8adebac4d7ddd491 100644 (file)
--- a/ginac/power.h
+++ b/ginac/power.h
@@ -3,7 +3,7 @@
  *  Interface to GiNaC's symbolic exponentiation (basis^exponent). */
 
 /*
- *  GiNaC Copyright (C) 1999-2003 Johannes Gutenberg University Mainz, Germany
+ *  GiNaC Copyright (C) 1999-2008 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
@@ -17,7 +17,7 @@
  *
  *  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
+ *  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
  */
 
 #ifndef __GINAC_POWER_H__
@@ -25,11 +25,13 @@
 
 #include "basic.h"
 #include "ex.h"
+#include "archive.h"
 
 namespace GiNaC {
 
 class numeric;
 class add;
+class mul;
 
 /** This class holds a two-component object, a basis and and exponent
  *  representing exponentiation. */
@@ -43,17 +45,17 @@ class power : public basic
        
        // other constructors
 public:
-       power(const ex & lh, const ex & rh) : inherited(TINFO_power), basis(lh), exponent(rh) {}
-       template<typename T> power(const ex & lh, const T & rh) : inherited(TINFO_power), basis(lh), exponent(rh) {}
+       power(const ex & lh, const ex & rh) :  basis(lh), exponent(rh) {}
+       template<typename T> power(const ex & lh, const T & rh) :  basis(lh), exponent(rh) {}
        
        // functions overriding virtual functions from base classes
 public:
-       void print(const print_context & c, unsigned level = 0) const;
        unsigned precedence() const {return 60;}
        bool info(unsigned inf) const;
        size_t nops() const;
        ex op(size_t i) const;
        ex map(map_function & f) const;
+       bool is_polynomial(const ex & var) const;
        int degree(const ex & s) const;
        int ldegree(const ex & s) const;
        ex coeff(const ex & s, int n = 1) const;
@@ -61,16 +63,23 @@ public:
        ex evalf(int level=0) const;
        ex evalm() const;
        ex series(const relational & s, int order, unsigned options = 0) const;
-       ex subs(const lst & ls, const lst & lr, unsigned options = 0) const;
-       ex normal(lst &sym_lst, lst &repl_lst, int level = 0) const;
-       ex to_rational(lst &repl_lst) const;
-       ex to_polynomial(lst &repl_lst) const;
-       exvector get_free_indices() const;
+       ex subs(const exmap & m, unsigned options = 0) const;
+       bool has(const ex & other, unsigned options = 0) const;
+       ex normal(exmap & repl, exmap & rev_lookup, int level = 0) const;
+       ex to_rational(exmap & repl) const;
+       ex to_polynomial(exmap & repl) const;
+       ex conjugate() const;
+       ex real_part() const;
+       ex imag_part() const;
+       /** Save (a.k.a. serialize) object into archive. */
+       void archive(archive_node& n) const;
+       /** Read (a.k.a. deserialize) object from archive. */
+       void read_archive(const archive_node& n, lst& syms);
 protected:
        ex derivative(const symbol & s) const;
        ex eval_ncmul(const exvector & v) const;
        unsigned return_type() const;
-       unsigned return_type_tinfo() const;
+       return_type_t return_type_tinfo() const;
        ex expand(unsigned options = 0) const;
        
        // new virtual functions which can be overridden by derived classes
@@ -78,9 +87,17 @@ protected:
        
        // non-virtual functions in this class
 protected:
-       ex expand_add(const add & a, int n) const;
-       ex expand_add_2(const add & a) const;
-       ex expand_mul(const mul & m, const numeric & n) const;
+       void print_power(const print_context & c, const char *powersymbol, const char *openbrace, const char *closebrace, unsigned level) const;
+       void do_print_dflt(const print_dflt & c, unsigned level) const;
+       void do_print_latex(const print_latex & c, unsigned level) const;
+       void do_print_csrc(const print_csrc & c, unsigned level) const;
+       void do_print_python(const print_python & c, unsigned level) const;
+       void do_print_python_repr(const print_python_repr & c, unsigned level) const;
+       void do_print_csrc_cl_N(const print_csrc_cl_N & c, unsigned level) const;
+
+       ex expand_add(const add & a, int n, unsigned options) const;
+       ex expand_add_2(const add & a, unsigned options) const;
+       ex expand_mul(const mul & m, const numeric & n, unsigned options, bool from_expand = false) const;
        
 // member variables
        
@@ -88,14 +105,7 @@ protected:
        ex basis;
        ex exponent;
 };
-
-// utility functions
-
-/** Efficient specialization of is_exactly_a<power>(obj) for power objects. */
-template<> inline bool is_exactly_a<power>(const basic & obj)
-{
-       return obj.tinfo()==TINFO_power;
-}
+GINAC_DECLARE_UNARCHIVER(power); 
 
 // wrapper functions