1 // PR c++/48115 2 3 template<typename> struct templ { }; 4 5 template<typename T> T declval(); 6 7 typedef int (*F2)(...); 8 9 template<int> struct Int { }; 10 11 template<typename F, typename T> 12 struct S 13 { 14 template<typename A> 15 Int<sizeof( declval<F>()(T()) )> 16 f(A); 17 }; 18 main()19int main() 20 { 21 S<F2, templ<int> >().f(0); 22 } 23