| //===----------------------------------------------------------------------===// |
| // |
| // The LLVM Compiler Infrastructure |
| // |
| // This file is dual licensed under the MIT and the University of Illinois Open |
| // Source Licenses. See LICENSE.TXT for details. |
| // |
| //===----------------------------------------------------------------------===// |
| |
| // type_traits |
| |
| // underlying_type |
| |
| #include <type_traits> |
| #include <climits> |
| |
| int main() |
| { |
| enum E { V = INT_MIN }; |
| enum F { W = UINT_MAX }; |
| |
| static_assert((std::is_same<std::underlying_type<E>::type, int>::value), |
| "E has the wrong underlying type"); |
| static_assert((std::is_same<std::underlying_type<F>::type, unsigned>::value), |
| "F has the wrong underlying type"); |
| |
| #if __has_feature(cxx_strong_enums) |
| enum G : char { }; |
| |
| static_assert((std::is_same<std::underlying_type<G>::type, char>::value), |
| "G has the wrong underlying type"); |
| #endif // __has_feature(cxx_strong_enums) |
| } |
