Simplify the logic of accessing codec function for specific TYPE
diff --git a/skeletons/NativeReal.h b/skeletons/NativeReal.h
index 68a81d9..884ff69 100644
--- a/skeletons/NativeReal.h
+++ b/skeletons/NativeReal.h
@@ -28,6 +28,8 @@
 per_type_decoder_f NativeReal_decode_uper;
 per_type_encoder_f NativeReal_encode_uper;
 
+#define NativeReal_constraint  asn_generic_no_constraint
+
 #ifdef __cplusplus
 }
 #endif