1 | // RUN: %clang_cc1 -fsyntax-only -verify %s |
2 | // RUN: %clang_cc1 -fsyntax-only -verify -std=c++98 %s |
3 | // RUN: %clang_cc1 -fsyntax-only -verify -std=c++11 %s |
4 | |
5 | template<typename T, T Divisor> |
6 | class X { |
7 | public: |
8 | static const T value = 10 / Divisor; // expected-error{{in-class initializer for static data member is not a constant expression}} |
9 | }; |
10 | |
11 | int array1[X<int, 2>::value == 5? 1 : -1]; |
12 | X<int, 0> xi0; // expected-note{{in instantiation of template class 'X<int, 0>' requested here}} |
13 | |
14 | |
15 | template<typename T> |
16 | class Y { |
17 | static const T value = 0; |
18 | #if __cplusplus <= 199711L |
19 | // expected-warning@-2 {{in-class initializer for static data member of type 'const float' is a GNU extension}} |
20 | #else |
21 | // expected-error@-4 {{in-class initializer for static data member of type 'const float' requires 'constexpr' specifier}} |
22 | // expected-note@-5 {{add 'constexpr'}} |
23 | #endif |
24 | }; |
25 | |
26 | Y<float> fy; // expected-note{{in instantiation of template class 'Y<float>' requested here}} |
27 | |
28 | |
29 | // out-of-line static member variables |
30 | |
31 | template<typename T> |
32 | struct Z { |
33 | static T value; |
34 | }; |
35 | |
36 | template<typename T> |
37 | T Z<T>::value; // expected-error{{no matching constructor}} |
38 | |
39 | struct DefCon {}; |
40 | |
41 | struct NoDefCon { |
42 | NoDefCon(const NoDefCon&); // expected-note{{candidate constructor}} |
43 | }; |
44 | |
45 | void test() { |
46 | DefCon &DC = Z<DefCon>::value; |
47 | NoDefCon &NDC = Z<NoDefCon>::value; // expected-note{{instantiation}} |
48 | } |
49 | |
50 | // PR5609 |
51 | struct X1 { |
52 | ~X1(); // The errors won't be triggered without this dtor. |
53 | }; |
54 | |
55 | template <typename T> |
56 | struct Y1 { |
57 | static char Helper(T); |
58 | static const int value = sizeof(Helper(T())); |
59 | }; |
60 | |
61 | struct X2 { |
62 | virtual ~X2(); |
63 | }; |
64 | |
65 | namespace std { |
66 | class type_info { }; |
67 | } |
68 | |
69 | template <typename T> |
70 | struct Y2 { |
71 | static T &Helper(); |
72 | static const int value = sizeof(typeid(Helper())); |
73 | }; |
74 | |
75 | template <int> |
76 | struct Z1 {}; |
77 | |
78 | void Test() { |
79 | Z1<Y1<X1>::value> x; |
80 | int y[Y1<X1>::value]; |
81 | Z1<Y2<X2>::value> x2; |
82 | int y2[Y2<X2>::value]; |
83 | } |
84 | |
85 | // PR5672 |
86 | template <int n> |
87 | struct X3 {}; |
88 | |
89 | class Y3 { |
90 | public: |
91 | ~Y3(); // The error isn't triggered without this dtor. |
92 | |
93 | void Foo(X3<1>); |
94 | }; |
95 | |
96 | template <typename T> |
97 | struct SizeOf { |
98 | static const int value = sizeof(T); |
99 | }; |
100 | |
101 | void MyTest3() { |
102 | Y3().Foo(X3<SizeOf<char>::value>()); |
103 | } |
104 | |
105 | namespace PR6449 { |
106 | template<typename T> |
107 | struct X0 { |
108 | static const bool var = false; |
109 | }; |
110 | |
111 | template<typename T> |
112 | const bool X0<T>::var; |
113 | |
114 | template<typename T> |
115 | struct X1 : public X0<T> { |
116 | static const bool var = false; |
117 | }; |
118 | |
119 | template<typename T> |
120 | const bool X1<T>::var; |
121 | |
122 | template class X0<char>; |
123 | template class X1<char>; |
124 | |
125 | } |
126 | |
127 | typedef char MyString[100]; |
128 | template <typename T> |
129 | struct StaticVarWithTypedefString { |
130 | static MyString str; |
131 | }; |
132 | template <typename T> |
133 | MyString StaticVarWithTypedefString<T>::str = ""; |
134 | |
135 | void testStaticVarWithTypedefString() { |
136 | (void)StaticVarWithTypedefString<int>::str; |
137 | } |
138 | |