Univariate Hensel lifting now uses upoly.

[ginac.git] / ginac / indexed.h

diff --git a/ginac/indexed.h b/ginac/indexed.h
index 0da2c421233385482ef4116c449d09b54245582d..b5339a7e34005d47ff52554d9a4666c8c38075c7 100644 (file)
--- a/ginac/indexed.h
+++ b/ginac/indexed.h
@@ -3,7 +3,7 @@
  *  Interface to GiNaC's indexed expressions. */
 
 /*
- *  GiNaC Copyright (C) 1999-2005 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
@@ -147,14 +147,20 @@ public:
        unsigned precedence() const {return 55;}
        bool info(unsigned inf) const;
        ex eval(int level = 0) const;
+       ex real_part() const;
+       ex imag_part() const;
        exvector get_free_indices() const;
 
+       /** Save (a.k.a. serialize) indexed object into archive. */
+       void archive(archive_node& n) const;
+       /** Read (a.k.a. deserialize) indexed object from archive. */
+       void read_archive(const archive_node& n, lst& syms);
 protected:
        ex derivative(const symbol & s) const;
        ex thiscontainer(const exvector & v) const;
        ex thiscontainer(std::auto_ptr<exvector> vp) const;
        unsigned return_type() const;
-       unsigned return_type_tinfo() const { return op(0).return_type_tinfo(); }
+       return_type_t return_type_tinfo() const { return op(0).return_type_tinfo(); }
        ex expand(unsigned options = 0) const;
 
        // new virtual functions which can be overridden by derived classes
@@ -196,6 +202,7 @@ protected:
 protected:
        ex symtree; /**< Index symmetry (tree of symmetry objects) */
 };
+GINAC_DECLARE_UNARCHIVER(indexed);
 
 
 class spmapkey {
@@ -245,12 +252,6 @@ protected:
 
 // utility functions
 
-/** Specialization of is_exactly_a<indexed>(obj) for indexed objects. */
-template<> inline bool is_exactly_a<indexed>(const basic & obj)
-{
-       return obj.tinfo()==TINFO_indexed;
-}
-
 /** Returns all dummy indices from the expression */
 exvector get_all_dummy_indices(const ex & e);
 
@@ -274,7 +275,7 @@ lst rename_dummy_indices_uniquely(const exvector & va, const exvector & vb);
 
 /** This function returns the given expression with expanded sums
  *  for all dummy index summations, where the dimensionality of 
- *  the dummy index is numeric.
+ *  the dummy index is a nonnegative integer.
  *  Optionally all indices with a variance will be substituted by 
  *  indices with the corresponding numeric values without variance.
  *