- * The value of the NULL type is meaningless: see BOOLEAN if you want to
- * carry true/false semantics.
+ * The value of the NULL type is meaningless.
+ * Use the BOOLEAN type if you need to carry true/false semantics.
der_type_encoder_f NULL_encode_der;
xer_type_decoder_f NULL_decode_xer;
xer_type_encoder_f NULL_encode_xer;
der_type_encoder_f NULL_encode_der;
xer_type_decoder_f NULL_decode_xer;
xer_type_encoder_f NULL_encode_xer;