1 //===----------------------------------------------------------------------===// 2 // 3 // The LLVM Compiler Infrastructure 4 // 5 // This file is dual licensed under the MIT and the University of Illinois Open 6 // Source Licenses. See LICENSE.TXT for details. 7 // 8 //===----------------------------------------------------------------------===// 9 10 // UNSUPPORTED: c++98, c++03, c++11 11 12 // <experimental/system_error> 13 14 // template <class T> constexpr bool is_error_condition_enum_v; 15 16 #include <experimental/system_error> 17 #include <type_traits> 18 namespace ex = std::experimental; 19 20 int main() { 21 { 22 static_assert(ex::is_error_condition_enum_v<std::errc>, ""); 23 24 static_assert(ex::is_error_condition_enum_v<std::errc> == 25 std::is_error_condition_enum <std::errc>::value, ""); 26 27 static_assert( 28 std::is_same<decltype(ex::is_error_condition_enum_v<std::errc>), 29 const bool>::value, 30 ""); 31 } 32 { 33 static_assert(!ex::is_error_condition_enum_v<int>, ""); 34 35 static_assert(ex::is_error_condition_enum_v<int> == 36 std::is_error_condition_enum <int>::value, ""); 37 } 38 } 39
