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From: "trippels at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org> To: gcc-bugs@gcc.gnu.org Subject: [Bug c++/67164] ICE: tree check: expected class ‘expression’, have ‘exceptional’ (argument_pack_select) in tree_operand_check, at tree.h:3356 Date: Sun, 23 Aug 2015 10:09:00 -0000 [thread overview] Message-ID: <bug-67164-4-2ENqKsY9fl@http.gcc.gnu.org/bugzilla/> (raw) In-Reply-To: <bug-67164-4@http.gcc.gnu.org/bugzilla/> https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67164 Markus Trippelsdorf <trippels at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |jason at gcc dot gnu.org --- Comment #3 from Markus Trippelsdorf <trippels at gcc dot gnu.org> --- Here's another testcase: namespace std { template <typename _Tp> struct A { static constexpr _Tp value = 0; }; template <bool, typename, typename> struct conditional; template <typename...> struct B; template <typename _B1, typename _B2> struct B<_B1, _B2> : conditional<1, _B1, _B2> {}; template <typename...> struct C; template <typename _B1, typename _B2> struct C<_B1, _B2> : conditional<1, _B2, _B1> {}; template <typename> struct D; template <typename _Tp> struct I : B<A<bool>, D<_Tp>>::type {}; template <typename _Tp> _Tp declval(); struct F { template <typename _Tp, typename _Arg, typename = decltype(_Tp(declval<_Arg>()))> static A<bool> __test(int); }; template <typename _Tp, typename _Arg> struct J : F { decltype(__test<_Tp, _Arg>(0)) type; }; template <typename _Tp, typename _Arg> struct K : C<int, J<_Tp, _Arg>> {}; template <typename _Tp, typename _Arg> struct L : conditional<I<_Tp>::value, int, K<_Tp, _Arg>> {}; template <typename _Tp, typename _Arg> struct __is_direct_constructible : L<_Tp, _Arg>::type {}; template <typename...> struct G; template <typename _Tp, typename _Arg> struct G<_Tp, _Arg> : __is_direct_constructible<_Tp, _Arg> {}; template <typename _Tp, typename... _Args> struct is_constructible : G<_Tp, _Args...>::type {}; template <bool> struct enable_if; template <bool, typename _Iftrue, typename> struct conditional { typedef _Iftrue type; }; template <typename _Iftrue, typename _Iffalse> struct conditional<false, _Iftrue, _Iffalse> { typedef _Iffalse type; }; } namespace detail { template <bool> struct fast_and; template <typename... Xn> struct closure { template <typename... Yn, typename = std::enable_if< fast_and<std::is_constructible<Xn, Yn>::value...>::value>> closure(Yn...); template <typename... Yn> closure(closure<Yn...>); }; } template <typename> struct make_impl; template <typename Datatype> struct H { template <typename... X> decltype(auto) operator()(X... x) { return make_impl<Datatype>::apply(x...); } }; template <typename Datatype> H<Datatype> make; struct Tuple; template <typename... Xs> struct M : detail::closure<Xs...> { using detail::closure<Xs...>::closure; }; template <> struct make_impl<Tuple> { template <typename... Xs> static M<Xs...> apply(Xs...); }; namespace test { struct { template <typename... Xs> decltype(auto) operator()(Xs... xs) { auto storage = make<Tuple>(xs...); return storage; } } seq; } int main() { test::seq(test::seq()); }
next prev parent reply other threads:[~2015-08-23 10:09 UTC|newest] Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top 2015-08-09 9:08 [Bug c++/67164] New: [6 Regression] " trippels at gcc dot gnu.org 2015-08-23 10:09 ` trippels at gcc dot gnu.org [this message] 2015-08-27 19:53 ` [Bug c++/67164] " ldionne.2 at gmail dot com 2015-08-28 4:33 ` trippels at gcc dot gnu.org 2021-10-01 9:48 ` pinskia at gcc dot gnu.org
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