1 // PR c++/44175 2 // { dg-do compile { target c++11 } } 3 4 template <bool, class T> struct enable_if { }; 5 template <class T> struct enable_if <true, T> { typedef T type; }; 6 7 template <int x> 8 typename enable_if<x==0,int>::type 9 ft() {} 10 11 template<class F, int N> 12 decltype (ft<F> (F())) // { dg-error "depth" } 13 ft() {} 14 15 int main() { 16 ft<struct a*, 0>(); // { dg-message "from here" } 17 } 18 19 // { dg-prune-output "compilation terminated" } 20