check length size in default BMPString and UniversalString constraints
diff --git a/skeletons/UniversalString.h b/skeletons/UniversalString.h
index ff22537..b2673ae 100644
--- a/skeletons/UniversalString.h
+++ b/skeletons/UniversalString.h
@@ -18,6 +18,7 @@
extern asn_OCTET_STRING_specifics_t asn_SPC_UniversalString_specs;
asn_struct_print_f UniversalString_print; /* Human-readable output */
+asn_constr_check_f UniversalString_constraint;
xer_type_decoder_f UniversalString_decode_xer;
xer_type_encoder_f UniversalString_encode_xer;