Douglas Gregor | 3d7a12a | 2009-03-25 23:32:15 +0000 | [diff] [blame] | 1 | // RUN: clang-cc -fsyntax-only -verify %s |
Douglas Gregor | 3d7a12a | 2009-03-25 23:32:15 +0000 | [diff] [blame] | 2 | template<typename T, T Divisor> |
| 3 | class X { |
| 4 | public: |
| 5 | static const T value = 10 / Divisor; // expected-error{{in-class initializer is not an integral constant expression}} |
| 6 | }; |
| 7 | |
| 8 | int array1[X<int, 2>::value == 5? 1 : -1]; |
| 9 | X<int, 0> xi0; // expected-note{{in instantiation of template class 'class X<int, 0>' requested here}} |
| 10 | |
| 11 | |
| 12 | template<typename T> |
| 13 | class Y { |
| 14 | static const T value = 0; // expected-error{{'value' can only be initialized if it is a static const integral data member}} |
| 15 | }; |
| 16 | |
| 17 | Y<float> fy; // expected-note{{in instantiation of template class 'class Y<float>' requested here}} |
Douglas Gregor | 65b9005 | 2009-07-27 17:43:39 +0000 | [diff] [blame] | 18 | |
| 19 | |
| 20 | // out-of-line static member variables |
| 21 | |
| 22 | template<typename T> |
| 23 | struct Z { |
| 24 | static T value; |
| 25 | }; |
| 26 | |
| 27 | template<typename T> |
| 28 | T Z<T>::value; // expected-error{{no matching constructor}} |
| 29 | |
| 30 | struct DefCon {}; |
| 31 | |
| 32 | struct NoDefCon { |
| 33 | NoDefCon(const NoDefCon&); |
| 34 | }; |
| 35 | |
| 36 | void test() { |
| 37 | DefCon &DC = Z<DefCon>::value; |
| 38 | NoDefCon &NDC = Z<NoDefCon>::value; // expected-note{{instantiation}} |
Owen Anderson | 08e2524 | 2009-07-27 22:29:56 +0000 | [diff] [blame] | 39 | } |
Douglas Gregor | 2afce72 | 2009-11-26 00:44:06 +0000 | [diff] [blame^] | 40 | |
| 41 | // PR5609 |
| 42 | struct X1 { |
| 43 | ~X1(); // The errors won't be triggered without this dtor. |
| 44 | }; |
| 45 | |
| 46 | template <typename T> |
| 47 | struct Y1 { |
| 48 | static char Helper(T); |
| 49 | static const int value = sizeof(Helper(T())); |
| 50 | }; |
| 51 | |
| 52 | struct X2 { |
| 53 | virtual ~X2(); |
| 54 | }; |
| 55 | |
| 56 | namespace std { |
| 57 | class type_info { }; |
| 58 | } |
| 59 | |
| 60 | template <typename T> |
| 61 | struct Y2 { |
| 62 | static T &Helper(); |
| 63 | static const int value = sizeof(typeid(Helper())); |
| 64 | }; |
| 65 | |
| 66 | template <int> |
| 67 | struct Z1 {}; |
| 68 | |
| 69 | void Test() { |
| 70 | Z1<Y1<X1>::value> x; |
| 71 | int y[Y1<X1>::value]; |
| 72 | Z1<Y2<X2>::value> x2; |
| 73 | int y2[Y2<X2>::value]; |
| 74 | } |