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switch_is

Specifies the expression or identifier acting as the union discriminant that selects the union member.

[switch_is]

The switch_is C++ attribute has the same functionality as the switch_is MIDL attribute.

See the case example for a sample use of switch_is.

Attribute Context

Applies to

typedef

Repeatable

No

Required attributes

None

Invalid attributes

None

For more information about the attribute contexts, see Attribute Contexts.

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