Specifies the expression or identifier acting as the union discriminant that selects the union member.
[switch_is]
Remarks
The switch_is C++ attribute has the same functionality as the switch_is MIDL attribute.
Example
See the case example for a sample use of switch_is.
Requirements
Attribute Context
Applies to |
typedef |
Repeatable |
No |
Required attributes |
None |
Invalid attributes |
None |
For more information about the attribute contexts, see Attribute Contexts.