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From: "daniel.kruegler at googlemail dot com" <gcc-bugzilla@gcc.gnu.org>
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Subject: [Bug c++/48531] [C++0x][SFINAE] Hard errors with arrays of unknown bound
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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D48531

--- Comment #9 from Daniel Kr=C3=BCgler <daniel.kruegler at googlemail dot =
com> 2011-04-18 11:12:14 UTC ---
(In reply to comment #8)
> Thanks. But I'm confused by what is replacing the hard-error. Isn't this
> supposed to be well-formed?
>=20
> template<class T,
>   class =3D decltype(T())
> >
> char f(int);
>=20
> template<class>
> double f(...);
>=20
> static_assert(sizeof(f<int[1]>(0)) =3D=3D 1, "Error");

Yes, this is supposed to be well-formed. I have not checked the most recent=
 gcc
state yet (but will do this evening), is this code not accepted?