// RUN: %clang_cc1 -std=c++11 -fsyntax-only -verify %s template<typename T> struct identity; template<typename ...Types> struct tuple; template<typename T, typename U> struct is_same { static const bool value = false; }; template<typename T> struct is_same<T, T> { static const bool value = true; }; // There is a syntactic ambiguity when an ellipsis occurs at the end // of a parameter-declaration-clause without a preceding comma. In // this case, the ellipsis is parsed as part of the // abstract-declarator if the type of the parameter names a template // parameter pack that has not been expanded; otherwise, it is parsed // as part of the parameter-declaration-clause. template<typename T, typename ...Types> struct X0 { typedef identity<T(Types...)> function_pack_1; typedef identity<T(Types......)> variadic_function_pack_1; // expected-warning {{varargs}} expected-note {{pack}} expected-note {{insert ','}} typedef identity<T(T...)> variadic_1; typedef tuple<T(Types, ...)...> template_arg_expansion_1; }; // FIXME: Once function parameter packs are implemented, we can test all of the disambiguation |