1// RUN: %clang_cc1 -std=c++11 -fsyntax-only -verify %s
2// expected-no-diagnostics
3
4namespace DeductionForInstantiation {
5  template<unsigned I, typename ...Types>
6  struct X { };
7
8  template<typename ...Types>
9  void f0(X<sizeof...(Types), Types&...>) { }
10
11  // No explicitly-specified arguments
12  template void f0(X<0>);
13  template void f0(X<1, int&>);
14  template void f0(X<2, int&, short&>);
15
16  // One explicitly-specified argument
17  template void f0<float>(X<1, float&>);
18  template void f0<double>(X<1, double&>);
19
20  // Two explicitly-specialized arguments
21  template void f0<char, unsigned char>(X<2, char&, unsigned char&>);
22  template void f0<signed char, char>(X<2, signed char&, char&>);
23
24  // FIXME: Extension of explicitly-specified arguments
25  //  template void f0<short, int>(X<3, short&, int&, long&>);
26}
27
28namespace DeductionWithConversion {
29  template<char...> struct char_values {
30    static const unsigned value = 0;
31  };
32
33  template<int C1, char C3>
34  struct char_values<C1, 12, C3> {
35    static const unsigned value = 1;
36  };
37
38  int check0[char_values<1, 12, 3>::value == 1? 1 : -1];
39
40  template<int...> struct int_values {
41    static const unsigned value = 0;
42  };
43
44  template<unsigned char C1, unsigned char C3>
45  struct int_values<C1, 12, C3> {
46    static const unsigned value = 1;
47  };
48
49  int check1[int_values<256, 12, 3>::value == 0? 1 : -1];
50  int check2[int_values<3, 12, 3>::value == 1? 1 : -1];
51}
52