In reply to juhi_p:
You cannot bit-stream cast a type containing a non-integral type (real), or a union; your example contains both. The rules are defined in section 6.24.3 Bit-stream casting in the IEEE 1800-2017 LRM.
In reply to juhi_p:
You cannot bit-stream cast a type containing a non-integral type (real), or a union; your example contains both. The rules are defined in section 6.24.3 Bit-stream casting in the IEEE 1800-2017 LRM.