| 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 | |