180     const children_map::const_iterator child_iter = _children.find(  in lookup_ro()  local
182     if (child_iter == _children.end())  in lookup_ro()
186         return (*child_iter).second;  in lookup_ro()
191                 *(*child_iter).second);  in lookup_ro()
226     children_map::const_iterator child_iter = _children.find(key[key_pos]);  in lookup_rw()  local
227     if (child_iter == _children.end()) {  in lookup_rw()
233             child_iter = _children.find(key[key_pos]);  in lookup_rw()
242                 *(*child_iter).second);  in lookup_rw()
251                 *(*child_iter).second);  in lookup_rw()
347         const children_map::const_iterator child_iter = _children.find(  in define()  local
350         if (child_iter == _children.end()) {  in define()
357                     *(*child_iter).second);  in define()