Hi James,
RPC_FC_ERROR_STATUS_T has a value of 0x10 and therefore isn't a possible value of "flags_type & 0xf" in the switch statement.
This may be a really stupid question, but is it possible to generate this condition?
No, it isn't possible. 0xf & (any value) will never produce any value larger than 0xf. 0x10 > 0xf. --Juan