+//////////
+// archiving
+//////////
+
+/** Construct object from archive_node. */
+function::function(const archive_node &n, const lst &sym_lst) : inherited(n, sym_lst)
+{
+ debugmsg("function constructor from archive_node", LOGLEVEL_CONSTRUCT);
+
+ // Find serial number by function name
+ string s;
+ if (n.find_string("name", s)) {
+ unsigned int ser = 0;
+ vector<registered_function_info>::const_iterator i = registered_functions().begin(), iend = registered_functions().end();
+ while (i != iend) {
+ if (s == i->name) {
+ serial = ser;
+ return;
+ }
+ i++; ser++;
+ }
+ throw (std::runtime_error("unknown function '" + s + "' in archive"));
+ } else
+ throw (std::runtime_error("unnamed function in archive"));
+}
+
+/** Unarchive the object. */
+ex function::unarchive(const archive_node &n, const lst &sym_lst)
+{
+ return (new function(n, sym_lst))->setflag(status_flags::dynallocated);
+}
+
+/** Archive the object. */
+void function::archive(archive_node &n) const
+{
+ inherited::archive(n);
+ GINAC_ASSERT(serial < registered_functions().size());
+ n.add_string("name", registered_functions()[serial].name);
+}
+