Howard Hinnant | c52f43e | 2010-08-22 00:59:46 +0000 | [diff] [blame] | 1 | //===----------------------------------------------------------------------===// |
| 2 | // |
| 3 | // The LLVM Compiler Infrastructure |
| 4 | // |
Howard Hinnant | b64f8b0 | 2010-11-16 22:09:02 +0000 | [diff] [blame] | 5 | // This file is dual licensed under the MIT and the University of Illinois Open |
| 6 | // Source Licenses. See LICENSE.TXT for details. |
Howard Hinnant | c52f43e | 2010-08-22 00:59:46 +0000 | [diff] [blame] | 7 | // |
| 8 | //===----------------------------------------------------------------------===// |
| 9 | |
| 10 | // type_traits |
| 11 | |
| 12 | // union |
| 13 | |
| 14 | #include <type_traits> |
| 15 | |
| 16 | template <class T> |
| 17 | void test_union_imp() |
| 18 | { |
| 19 | static_assert(!std::is_void<T>::value, ""); |
Marshall Clow | 79d8c99 | 2013-10-05 21:21:17 +0000 | [diff] [blame^] | 20 | #if _LIBCPP_STD_VER > 11 |
| 21 | static_assert(!std::is_null_pointer<T>::value, ""); |
| 22 | #endif |
Howard Hinnant | c52f43e | 2010-08-22 00:59:46 +0000 | [diff] [blame] | 23 | static_assert(!std::is_integral<T>::value, ""); |
| 24 | static_assert(!std::is_floating_point<T>::value, ""); |
| 25 | static_assert(!std::is_array<T>::value, ""); |
| 26 | static_assert(!std::is_pointer<T>::value, ""); |
| 27 | static_assert(!std::is_lvalue_reference<T>::value, ""); |
| 28 | static_assert(!std::is_rvalue_reference<T>::value, ""); |
| 29 | static_assert(!std::is_member_object_pointer<T>::value, ""); |
| 30 | static_assert(!std::is_member_function_pointer<T>::value, ""); |
| 31 | static_assert(!std::is_enum<T>::value, ""); |
| 32 | static_assert( std::is_union<T>::value, ""); |
| 33 | static_assert(!std::is_class<T>::value, ""); |
| 34 | static_assert(!std::is_function<T>::value, ""); |
| 35 | } |
| 36 | |
| 37 | template <class T> |
| 38 | void test_union() |
| 39 | { |
| 40 | test_union_imp<T>(); |
| 41 | test_union_imp<const T>(); |
| 42 | test_union_imp<volatile T>(); |
| 43 | test_union_imp<const volatile T>(); |
| 44 | } |
| 45 | |
| 46 | union Union |
| 47 | { |
| 48 | int _; |
| 49 | double __; |
| 50 | }; |
| 51 | |
| 52 | int main() |
| 53 | { |
| 54 | test_union<Union>(); |
| 55 | } |