Re: Designated initializers for fields in anonymous structs and unions

[Derek M Jones <derek@knosof.co.uk>]

Linus,

> .. 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.

-- 
Derek M. Jones                  tel: +44 (0) 1252 520 667
Knowledge Software Ltd          blog:shape-of-code.coding-guidelines.com
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