+class cl_error_registry
+{
+public:
+ cl_error_registry(void);
+ class cl_error_class *find(char *type_name)
+ {
+ if (NIL == registered_errors)
+ return NIL;
+ return static_cast<class cl_error_class *>(registered_errors->first_that(compare, static_cast<void *>(type_name)));
+ }
+ static class cl_list *get_list(void)
+ {
+ return registered_errors;
+ }
+
+protected:
+ class cl_error_class *register_error(class cl_error_class *error_class)
+ {
+ if (!registered_errors)
+ registered_errors= new cl_list(2, 2, "registered errors");
+ registered_errors->add(error_class);
+ return error_class;
+ }
+
+private:
+ static class cl_list *registered_errors;
+ static int compare(void *obj1, void *obj2)
+ {
+ return (static_cast<class cl_base *>(obj1))->is_named(static_cast<char *>(obj2));
+ }
+};
+
+class cl_commander_base; //forward