|  | // -*- C++ -*- | 
|  | //===-------------------------- system_error ------------------------------===// | 
|  | // | 
|  | //                     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. | 
|  | // | 
|  | //===----------------------------------------------------------------------===// | 
|  |  | 
|  | #ifndef _LIBCPP_EXPERIMENTAL_SYSTEM_ERROR | 
|  | #define _LIBCPP_EXPERIMENTAL_SYSTEM_ERROR | 
|  |  | 
|  | /** | 
|  | experimental/system_error synopsis | 
|  |  | 
|  | // C++1y | 
|  |  | 
|  | #include <system_error> | 
|  |  | 
|  | namespace std { | 
|  | namespace experimental { | 
|  | inline namespace fundamentals_v1 { | 
|  |  | 
|  | // See C++14 19.5, System error support | 
|  | template <class T> constexpr bool is_error_code_enum_v | 
|  | = is_error_code_enum<T>::value; | 
|  | template <class T> constexpr bool is_error_condition_enum_v | 
|  | = is_error_condition_enum<T>::value; | 
|  |  | 
|  | } // namespace fundamentals_v1 | 
|  | } // namespace experimental | 
|  | } // namespace std | 
|  |  | 
|  | */ | 
|  |  | 
|  | #include <experimental/__config> | 
|  |  | 
|  | #if _LIBCPP_STD_VER > 11 | 
|  |  | 
|  | #include <system_error> | 
|  |  | 
|  | #if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER) | 
|  | #pragma GCC system_header | 
|  | #endif | 
|  |  | 
|  | _LIBCPP_BEGIN_NAMESPACE_LFTS | 
|  |  | 
|  | #ifndef _LIBCPP_HAS_NO_VARIABLE_TEMPLATES | 
|  |  | 
|  | template <class _Tp> _LIBCPP_CONSTEXPR bool is_error_code_enum_v | 
|  | = is_error_code_enum<_Tp>::value; | 
|  |  | 
|  | template <class _Tp> _LIBCPP_CONSTEXPR bool is_error_condition_enum_v | 
|  | = is_error_condition_enum<_Tp>::value; | 
|  |  | 
|  | #endif /* _LIBCPP_HAS_NO_VARIABLE_TEMPLATES */ | 
|  |  | 
|  | _LIBCPP_END_NAMESPACE_LFTS | 
|  |  | 
|  | #endif /* _LIBCPP_STD_VER > 11 */ | 
|  |  | 
|  | #endif /* _LIBCPP_EXPERIMENTAL_SYSTEM_ERROR */ |