RE: Merging changes to volatile bitfield structs

["Phil Endecott" <spam_from_gcc_help_2@xxxxxxxxxxxx>]

John (Eljay) Love-Jensen wrote:
> Try this...
>
> struct S
> {
>   union
>   {
>     struct
>     {
>       unsigned a : 1;
>       unsigned b : 31;
>     };
>
>     unsigned ab;
>   } m;
>
>   void S::operator = (S const& in) volatile
>   {
>     m.ab = in.m.ab;
>   }
> };
>
> volatile S s;
>
> void f()
> {
>   S x;
>   x.m.a = 0;
>   x.m.b = 0;
>   s = x;
> }

Thanks, but.... that's rather unpleasant.  Isn't there some way of 
solving it with casts?


Phil.