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Specifies the expression or identifier acting as the union discriminant that selects the union member.
Syntax
[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 | Value |
|---|---|
| Applies to | typedef |
| Repeatable | No |
| Required attributes | None |
| Invalid attributes | None |
For more information about the attribute contexts, see Attribute Contexts.
See also
IDL Attributes
Typedef, Enum, Union, and Struct Attributes
switch_type