libcxx/include/__filesystem/perms.h

   1 // -*- C++ -*-
   2 //===----------------------------------------------------------------------===//
   3 //
   4 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
   5 // See https://llvm.org/LICENSE.txt for license information.
   6 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
   7 //
   8 //===----------------------------------------------------------------------===//
   9
  10 #ifndef _LIBCPP___FILESYSTEM_PERMS_H
  11 #define _LIBCPP___FILESYSTEM_PERMS_H
  12
  13 #include <__config>
  14
  15 #if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
  16 #  pragma GCC system_header
  17 #endif
  18
  19 #if _LIBCPP_STD_VER >= 17
  20
  21 _LIBCPP_BEGIN_NAMESPACE_FILESYSTEM
  22
  23 // On Windows, these permission bits map to one single readonly flag per
  24 // file, and the executable bit is always returned as set. When setting
  25 // permissions, as long as the write bit is set for either owner, group or
  26 // others, the readonly flag is cleared.
  27 enum class perms : unsigned {
  28   none = 0,
  29
  30   owner_read  = 0400,
  31   owner_write = 0200,
  32   owner_exec  = 0100,
  33   owner_all   = 0700,
  34
  35   group_read  = 040,
  36   group_write = 020,
  37   group_exec  = 010,
  38   group_all   = 070,
  39
  40   others_read  = 04,
  41   others_write = 02,
  42   others_exec  = 01,
  43   others_all   = 07,
  44
  45   all = 0777,
  46
  47   set_uid    = 04000,
  48   set_gid    = 02000,
  49   sticky_bit = 01000,
  50   mask       = 07777,
  51   unknown    = 0xFFFF,
  52 };
  53
  54 _LIBCPP_HIDE_FROM_ABI inline constexpr perms operator&(perms __lhs, perms __rhs) {
  55   return static_cast<perms>(static_cast<unsigned>(__lhs) & static_cast<unsigned>(__rhs));
  56 }
  57
  58 _LIBCPP_HIDE_FROM_ABI inline constexpr perms operator|(perms __lhs, perms __rhs) {
  59   return static_cast<perms>(static_cast<unsigned>(__lhs) | static_cast<unsigned>(__rhs));
  60 }
  61
  62 _LIBCPP_HIDE_FROM_ABI inline constexpr perms operator^(perms __lhs, perms __rhs) {
  63   return static_cast<perms>(static_cast<unsigned>(__lhs) ^ static_cast<unsigned>(__rhs));
  64 }
  65
  66 _LIBCPP_HIDE_FROM_ABI inline constexpr perms operator~(perms __lhs) {
  67   return static_cast<perms>(~static_cast<unsigned>(__lhs));
  68 }
  69
  70 _LIBCPP_HIDE_FROM_ABI inline perms& operator&=(perms& __lhs, perms __rhs) { return __lhs = __lhs & __rhs; }
  71
  72 _LIBCPP_HIDE_FROM_ABI inline perms& operator|=(perms& __lhs, perms __rhs) { return __lhs = __lhs | __rhs; }
  73
  74 _LIBCPP_HIDE_FROM_ABI inline perms& operator^=(perms& __lhs, perms __rhs) { return __lhs = __lhs ^ __rhs; }
  75
  76 _LIBCPP_END_NAMESPACE_FILESYSTEM
  77
  78 #endif // _LIBCPP_STD_VER >= 17
  79
  80 #endif // _LIBCPP___FILESYSTEM_PERMS_H