Fix chinese_remainder() so modular GCD actually works.

[ginac.git] / ginac / symmetry.h

diff --git a/ginac/symmetry.h b/ginac/symmetry.h
index 9282b75e2f2616941645f25278118068ee1524eb..4b4fea5c8d731c7aafaa8b86388bfc268044229f 100644 (file)
--- a/ginac/symmetry.h
+++ b/ginac/symmetry.h
@@ -3,7 +3,7 @@
  *  Interface to GiNaC's symmetry definitions. */
 
 /*
- *  GiNaC Copyright (C) 1999-2007 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
@@ -26,6 +26,7 @@
 #include <set>
 
 #include "ex.h"
+#include "archive.h"
 
 namespace GiNaC {
 
@@ -83,6 +84,10 @@ public:
        /** Check whether this node involves a cyclic symmetry. */
        bool has_cyclic() 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:
        void do_print(const print_context & c, unsigned level) const;
        void do_print_tree(const print_tree & c, unsigned level) const;
@@ -99,6 +104,7 @@ private:
        /** Vector of child nodes. */
        exvector children;
 };
+GINAC_DECLARE_UNARCHIVER(symmetry); 
 
 
 // global functions