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// RUN: %clang_cc1 -std=c++20 -verify %s
namespace PR46377 {
template<typename> using IntPtr = int*;
template<typename ...T> auto non_dependent_typedef() {
typedef int(*P)(IntPtr<T>...);
return P();
}
template<typename ...T> auto non_dependent_alias() {
using P = int(*)(IntPtr<T>...);
return P();
}
template<typename ...T> auto non_dependent_via_sizeof() {
using P = int(*)(int(...pack)[sizeof(sizeof(T))]); // expected-error {{invalid application of 'sizeof'}}
return P();
}
using a = int (*)(int*, int*);
using a = decltype(non_dependent_typedef<void, void>());
using a = decltype(non_dependent_alias<void, void>());
using a = decltype(non_dependent_via_sizeof<float, float>());
using b = decltype(non_dependent_via_sizeof<float, void>()); // expected-note {{instantiation of}}
}