448   coap_opt_iterator_t opt_iter;  in coap_option_check_critical()  local
451   coap_option_iterator_init(pdu, &opt_iter, COAP_OPT_ALL);  in coap_option_check_critical()
453   while (coap_option_next(&opt_iter)) {  in coap_option_check_critical()
461     if (opt_iter.type & 0x01) {  in coap_option_check_critical()
463       switch (opt_iter.type) {  in coap_option_check_critical()
477 	if (coap_option_filter_get(ctx->known_options, opt_iter.type) <= 0) {  in coap_option_check_critical()
478 	  debug("unknown critical option %d\n", opt_iter.type);  in coap_option_check_critical()
484 	  if (coap_option_filter_set(unknown, opt_iter.type) == -1) {  in coap_option_check_critical()
1034   coap_opt_iterator_t opt_iter;  in coap_new_error_response()  local
1061   coap_option_iterator_init(request, &opt_iter, opts);  in coap_new_error_response()
1067   while((option = coap_option_next(&opt_iter))) {  in coap_new_error_response()
1068     unsigned short delta = opt_iter.type - opt_type;  in coap_new_error_response()
1093     opt_type = opt_iter.type;  in coap_new_error_response()
1108     coap_option_iterator_init(request, &opt_iter, opts);  in coap_new_error_response()
1109     while((option = coap_option_next(&opt_iter)))  in coap_new_error_response()
1110       coap_add_option(response, opt_iter.type,   in coap_new_error_response()
1149   coap_opt_iterator_t opt_iter;  in coap_wellknown_response()  local
1173   query_filter = coap_check_option(request, COAP_OPTION_URI_QUERY, &opt_iter);  in coap_wellknown_response()
1335   coap_opt_iterator_t opt_iter;  in no_response()  local
1341   nores = coap_check_option(request, COAP_OPTION_NORESPONSE, &opt_iter);  in no_response()
1426       coap_opt_iterator_t opt_iter;  in handle_request()  local
1432 	observe = coap_check_option(node->pdu, COAP_OPTION_OBSERVE, &opt_iter);  in handle_request()