1 // RUN: %clang_cc1 -std=c++11 -fsyntax-only -verify %s
2 // expected-no-diagnostics
3 
4 namespace DeductionForInstantiation {
5   template<unsigned I, typename ...Types>
6   struct X { };
7 
8   template<typename ...Types>
f0(X<sizeof...(Types),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 
28 namespace 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