| //===----------------------------------------------------------------------===// |
| // |
| // 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. |
| // |
| //===----------------------------------------------------------------------===// |
| |
| // UNSUPPORTED: c++98, c++03, c++11 |
| |
| // <experimental/system_error> |
| |
| // template <class T> constexpr bool is_error_code_enum_v; |
| |
| #include <experimental/system_error> |
| #include <ios> /* for std::io_errc */ |
| |
| namespace ex = std::experimental; |
| |
| int main() { |
| { |
| static_assert(ex::is_error_code_enum_v<std::io_errc>, ""); |
| |
| static_assert(ex::is_error_code_enum_v<std::io_errc> == |
| std::is_error_code_enum <std::io_errc>::value, ""); |
| |
| static_assert(std::is_same<decltype(ex::is_error_code_enum_v<std::io_errc>), |
| const bool>::value, ""); |
| } |
| { |
| static_assert(!ex::is_error_code_enum_v<int>, ""); |
| |
| static_assert(ex::is_error_code_enum_v<int> == |
| std::is_error_code_enum <int>::value, ""); |
| } |
| } |