1 // RUN: %clang_cc1 -verify -std=c++20 -fsyntax-only %s 2 3 enum {A, S, D, F}; main()4int main() { 5 using asdf = decltype(A); 6 using enum asdf; // this line causes the crash 7 return 0; 8 } 9 10 namespace N1 { 11 enum {A, S, D, F}; 12 constexpr struct T { 13 using asdf = decltype(A); 14 using enum asdf; 15 } t; 16 17 static_assert(t.D == D); 18 static_assert(T::S == S); 19 } 20 21 namespace N2 { 22 enum {A, S, D, F}; 23 constexpr struct T { 24 struct { 25 using asdf = decltype(A); 26 using enum asdf; 27 } inner; 28 } t; 29 30 static_assert(t.inner.D == D); 31 static_assert(t.D == D); // expected-error {{no member named 'D' in 'N2::T'}} 32 } 33