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1 // RUN: %clang_cc1 -fsyntax-only %s
2 
3 template<unsigned I>
4 struct FibonacciEval;
5 
6 template<unsigned I>
7 struct Fibonacci {
8   enum { value = FibonacciEval<I-1>::value + FibonacciEval<I-2>::value };
9 };
10 
11 template<unsigned I>
12 struct FibonacciEval {
13   enum { value = Fibonacci<I>::value };
14 };
15 
16 template<> struct Fibonacci<0> {
17   enum { value = 0 };
18 };
19 
20 template<> struct Fibonacci<1> {
21   enum { value = 1 };
22 };
23 
24 int array5[Fibonacci<5>::value == 5? 1 : -1];
25 int array10[Fibonacci<10>::value == 55? 1 : -1];
26 
27 template<unsigned I>
28 struct FibonacciEval2;
29 
30 template<unsigned I>
31 struct Fibonacci2 {
32   static const unsigned value
33     = FibonacciEval2<I-1>::value + FibonacciEval2<I-2>::value;
34 };
35 
36 template<unsigned I>
37 struct FibonacciEval2 {
38   static const unsigned value = Fibonacci2<I>::value;
39 };
40 
41 template<> struct Fibonacci2<0> {
42   static const unsigned value = 0;
43 };
44 
45 template<> struct Fibonacci2<1> {
46   static const unsigned value = 1;
47 };
48 
49 int array5_2[Fibonacci2<5>::value == 5? 1 : -1];
50 int array10_2[Fibonacci2<10>::value == 55? 1 : -1];
51 
52 template<unsigned I>
53 struct Fibonacci3 {
54   static const unsigned value = Fibonacci3<I-1>::value + Fibonacci3<I-2>::value;
55 };
56 
57 template<> struct Fibonacci3<0> {
58   static const unsigned value = 0;
59 };
60 
61 template<> struct Fibonacci3<1> {
62   static const unsigned value = 1;
63 };
64 
65 int array5_3[Fibonacci3<5>::value == 5? 1 : -1];
66 int array10_3[Fibonacci3<10>::value == 55? 1 : -1];
67