// Dummy implementation. Test only the compiler feature. namespace std { typedef decltype(sizeof(int)) size_t; template <class _E> class initializer_list { const _E* __begin_; size_t __size_; }; } template <typename T> struct A { A(std::initializer_list<T>) {} }; void someFunc() { A<int> as = { 1, 2, 3, 4 }; }