-    typedef list<CORP_CONF>::iterator       crp_iter;
-    typedef list<CORP_CONF>::const_iterator const_crp_iter;
+    CORPORATIONS_IMPL(const CORPORATIONS_IMPL & rvalue);
+    CORPORATIONS_IMPL & operator=(const CORPORATIONS_IMPL & rvalue);
+
+    typedef std::list<CORP_CONF>::iterator       crp_iter;
+    typedef std::list<CORP_CONF>::const_iterator const_crp_iter;