On Sat, Aug 2, 2014 at 11:31 AM, Derek M Jones <derek@xxxxxxxxxxxx> wrote:
>> .. and in fact I think even without those things, you can just make
>> the unnamed union have a type name, ie
>>
>> struct S {
>> union T {
>> int a;
>> }
>> };
>>
>> the union T has a typename, but is a unnamed member of struct S. We
>> could use "union T" later.
>
>
> No such luck, not allowed by the C Standard.
>
> 6.7.2.1p13
> "An unnamed member whose type specifier is a structure specifier with
> no tag is called an anonymous structure; an unnamed member whose type
> specifier is a union specifier with no tag is called an anonymous union"
>
> But you can do this sort of thing when the type specifier is not anonymous.
That is what I recall as well, not part of stander C. If you enable
the "-fplan9-extensions",
Linus' example can pass.
Chris
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