On Sat, Mar 11, 2023 at 04:48:14PM +0000, Jonathan Wakely via Gcc wrote:
> On Sat, 11 Mar 2023, 12:53 Basile Starynkevitch, <bas...@starynkevitch.net>
> wrote:
>
> > Hello all,
> >
> >
> > Andrea observed that:
> >
> > In gcc 8.3.0, compiling
> >
> >
> > enum
> > test
> > {
> > FIRST = 1,
> > SECOND = 1,
> > THIRD = 2
> > };
> >
> > int
> > main (void)
> > {
> > return 0;
> > }
> >
> >
> > generates no warning even with -Wextra.
> >
> > I believe that the C standard (which I don't have here, but see also
> > https://port70.net/~nsz/c/c11/n1570.html or buy it from ISO) explicitly
> > allow duplicate values in enum.
> >
>
>
> Of course it does, it's perfectly valid. Nobody has said it should be
> rejected. The request is for a warning, because for *some* uses of enums
> duplicates are not wanted.
And as I said in the other thread about the very same issue, it's
<https://gcc.gnu.org/PR16186> which is assigned to me and I hope to
implement it for GC 14.
Marek
