libcxx/include/__cxx03/__bit/endian.h

   1 //===----------------------------------------------------------------------===//
   2 //
   3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
   4 // See https://llvm.org/LICENSE.txt for license information.
   5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
   6 //
   7 //===----------------------------------------------------------------------===//
   8
   9 #ifndef _LIBCPP___BIT_ENDIAN_H
  10 #define _LIBCPP___BIT_ENDIAN_H
  11
  12 #include <__cxx03/__config>
  13
  14 #if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
  15 #  pragma GCC system_header
  16 #endif
  17
  18 #if _LIBCPP_STD_VER >= 20
  19
  20 _LIBCPP_BEGIN_NAMESPACE_STD
  21
  22 enum class endian {
  23   little = 0xDEAD,
  24   big    = 0xFACE,
  25 #  if defined(_LIBCPP_LITTLE_ENDIAN)
  26   native = little
  27 #  elif defined(_LIBCPP_BIG_ENDIAN)
  28   native = big
  29 #  else
  30   native = 0xCAFE
  31 #  endif
  32 };
  33
  34 _LIBCPP_END_NAMESPACE_STD
  35
  36 #endif // _LIBCPP_STD_VER >= 20
  37
  38 #endif // _LIBCPP___BIT_ENDIAN_H