1 // PR c++/33342 2 3 template <bool B, class T = void> 4 struct enable_if_c { 5 typedef T type; 6 }; 7 8 template <class T> 9 struct A 10 { 11 template <class U, class V> 12 struct B; 13 14 template <class U> 15 struct B<U, typename enable_if_c<U::sub::value==0>::type> 16 { }; 17 }; 18 19 struct C 20 { 21 struct sub 22 { 23 static const int value = 0; 24 }; 25 }; 26 27 28 A<int> a; 29 A<int>::B<C, void> b; 30