clang/test/SemaCXX/pr100095.cpp

   1 // RUN: %clang_cc1 -fsyntax-only -std=c++11 %s
   2 // XFAIL: asserts
   3
   4 template <class> struct Pair;
   5 template <class...> struct Tuple {
   6   template <class _Up> Tuple(_Up);
   7 };
   8 template <typename> struct StatusOr;
   9 template <int> using ElementType = int;
  10 template <int... fields>
  11 using Key = Tuple<ElementType<fields>...>;
  12 template <int... fields>
  13 StatusOr<Pair<Key<fields...>>> Parser();
  14 struct Helper { Helper(Tuple<>, Tuple<>, int, int); };
  15 struct D : Helper {
  16   D(Key<> f, int n, int e) : Helper(f, Parser<>, n, e) {}
  17 };