warn_illunionmembers
Controls whether a warning is issued when illegal union members are made, such as unions with reference or non-trivial class members.
Syntax
#pragma warn_illunionmembers on | off | reset
Targets
All platforms.
Remarks
This pragma does not correspond to any panel setting. To check this setting, use __option (warn_illunionmembers), described in Checking Settings. The default setting is on.