| description | title | ms.date | f1_keywords | helpviewer_keywords | ms.assetid | ||
|---|---|---|---|---|---|---|---|
Learn more about: Compiler Warning (level 1) C4912 |
Compiler Warning (level 1) C4912 |
11/04/2016 |
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|
ba1f1a66-8c20-4792-9ac8-43e49f729ae2 |
'attribute': attribute has undefined behavior on a nested UDT
Attributes that apply to nested UDTs (user-defined type, which could be a typedef, union, or struct) may be ignored.
The following code shows how this warning would be generated:
// C4912.cpp
// compile with: /W1
#include <windows.h>
[emitidl, module(name="xx")];
[object, uuid("00000000-0000-0000-0000-000000000002")]
__interface IMy
{
};
[coclass, default(IMy), appobject, uuid("00000000-0000-0000-0000-000000000001")]
class CMy : public IMy
{
[export, v1_enum] typedef enum myEnum { k3_1 = 1, k3_2 = 2 } myEnumv; // C4912
};
int main()
{
}