Re: [PATCH 04/64] stddef: Introduce struct_group() helper macro

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On Sat, Jul 31, 2021 at 07:24:44AM +0200, Rasmus Villemoes wrote:
> On Sat, Jul 31, 2021, 04:59 Kees Cook <keescook@xxxxxxxxxxxx> wrote:
> 
> > On Fri, Jul 30, 2021 at 10:19:20PM +0000, Williams, Dan J wrote:
> > > On Wed, 2021-07-28 at 14:59 -0700, Kees Cook wrote:
> >
> > >  /**
> > >   * struct_group(NAME, MEMBERS)
> > >   *
> > > @@ -67,7 +73,10 @@ enum {
> > >   * @NAME: The name of the mirrored sub-struct
> > >   * @MEMBERS: The member declarations for the mirrored structs
> > >   */
> > > -#define struct_group(NAME, MEMBERS)    \
> > > +#define struct_group(NAME, MEMBERS...) \
> > >         struct_group_attr(NAME, /* no attrs */, MEMBERS)
> > >
> > > +#define struct_group_typed(TYPE, NAME, MEMBERS...) \
> > > +       struct_group_attr_typed(TYPE, NAME, /* no attrs */, MEMBERS)
> > > +
> > >  #endif
> >
> > Awesome! My instinct is to expose the resulting API as:
> >
> > __struct_group(type, name, attrs, members...)
> >
> > struct_group(name, members...)
> > struct_group_attr(name, attrs, members...)
> > struct_group_typed(type, name, members...)
> 
> Bikeshed: can we use proper nomenclature please. s/type/tag/,
> s/typed/tagged.

Ah! Thank you. I went looking for the spec on what these are called and
couldn't find it. "struct $tag" is the type, then, yes? So IIUC now:

       |    type   | members  | name
       |       tag
	struct foo { int bar; } baz;

-- 
Kees Cook




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