|  | //===----------------------------------------------------------------------===// | 
|  | // | 
|  | // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. | 
|  | // See https://llvm.org/LICENSE.txt for license information. | 
|  | // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception | 
|  | // | 
|  | //===----------------------------------------------------------------------===// | 
|  |  | 
|  | #ifndef _LIBCPP___BIT_ENDIAN_H | 
|  | #define _LIBCPP___BIT_ENDIAN_H | 
|  |  | 
|  | #include <__config> | 
|  |  | 
|  | #if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER) | 
|  | #  pragma GCC system_header | 
|  | #endif | 
|  |  | 
|  | #if _LIBCPP_STD_VER >= 20 | 
|  |  | 
|  | _LIBCPP_BEGIN_NAMESPACE_STD | 
|  |  | 
|  | enum class endian { | 
|  | little = 0xDEAD, | 
|  | big = 0xFACE, | 
|  | #  if defined(_LIBCPP_LITTLE_ENDIAN) | 
|  | native = little | 
|  | #  elif defined(_LIBCPP_BIG_ENDIAN) | 
|  | native = big | 
|  | #  else | 
|  | native = 0xCAFE | 
|  | #  endif | 
|  | }; | 
|  |  | 
|  | _LIBCPP_END_NAMESPACE_STD | 
|  |  | 
|  | #endif // _LIBCPP_STD_VER >= 20 | 
|  |  | 
|  | #endif // _LIBCPP___BIT_ENDIAN_H |