p12.cpp revision 77d6bb9e223496aa5288294f34e7225d1f65dddc 
1// RUN: %clang_cc1 -std=c++0x -fsyntax-only -verify %s
2
3// Note: Partial ordering of function templates containing template
4// parameter packs is independent of the number of deduced arguments
5// 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 ...>); // #2
9template<class T1, class ... Types> double &g(Tuple<T1, Types& ...>); // #3
10
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 ...)); // #2
20template<class T1, class ... Types> double &h(int (*)(T1, Types& ...)); // #3
21
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