40 lines · cpp
1// RUN: %clang_cc1 -std=c++11 -fsyntax-only -verify %s2 3// Note: Partial ordering of function templates containing template4// parameter packs is independent of the number of deduced arguments5// for those template parameter packs.6template<class ...> struct Tuple { }; 7template<class ... Types> int &g(Tuple<Types ...>); // #1 8template<class T1, class ... Types> float &g(Tuple<T1, Types ...>); // #29template<class T1, class ... Types> double &g(Tuple<T1, Types& ...>); // #310 11void test_g() {12 int &ir1 = g(Tuple<>()); 13 float &fr1 = g(Tuple<int, float>()); 14 double &dr1 = g(Tuple<int, float&>()); 15 double &dr2 = g(Tuple<int>());16}17 18template<class ... Types> int &h(int (*)(Types ...)); // #1 19template<class T1, class ... Types> float &h(int (*)(T1, Types ...)); // #220template<class T1, class ... Types> double &h(int (*)(T1, Types& ...)); // #321 22void test_h() {23 int &ir1 = h((int(*)())0); 24 float &fr1 = h((int(*)(int, float))0);25 double &dr1 = h((int(*)(int, float&))0);26 double &dr2 = h((int(*)(int))0);27}28 29namespace test_j {30 31template <int I> struct ref {};32 33template <int... L> void map(ref<L>...);34template <int head, int... tail> void map(ref<head> x, ref<tail>... xs); // expected-note {{here}}35 36template void map<0, 1>(ref<0>, ref<1>);37// expected-error@-1 {{explicit instantiation of undefined function template 'map'}}38 39} // namespace test_j40