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From: "pinskia at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
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Subject: [Bug c++/102338] Recursive noexcept specification inside class/struct
Date: Wed, 15 Sep 2021 07:47:45 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D102338

--- Comment #6 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
(In reply to Andrew Pinski from comment #5)
> here is a more reduced testcase:
> struct S {
>     template<typename T>
>      int f(T && t) noexcept {
>         return 0;
>     }
>     template<typename T, typename... Ts>
>      int f(T && t, Ts && ... ts) noexcept(noexcept(f(ts...))) {
>         return f(ts...);
>     }
> };
>=20
> bool t =3D  S{}.f(true, 0, 5u);
>=20
> If this was not a struct, the code would be invalid as the recusive f is =
not
> found.

Oh the non-static case never compiled either.=