[libcxx-commits] [PATCH] D98155: [libcxx] Document windows specifics regarding file_type and perms. NFC.

Martin Storsjö via Phabricator via libcxx-commits libcxx-commits at lists.llvm.org
Sun Mar 7 13:51:34 PST 2021

mstorsjo created this revision.
mstorsjo requested review of this revision.
Herald added a project: libc++.
Herald added a subscriber: libcxx-commits.
Herald added a reviewer: libc++.

This was requested in the review of D98138 <https://reviews.llvm.org/D98138>.

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Index: libcxx/include/filesystem
--- libcxx/include/filesystem
+++ libcxx/include/filesystem
@@ -276,6 +276,8 @@
   uintmax_t available;
+// On Windows, the library never identifies files as  block, character, fifo
+// or socket.
 enum class _LIBCPP_ENUM_VIS file_type : signed char {
   none = 0,
   not_found = -1,
@@ -289,6 +291,10 @@
   unknown = 8
+// On Windows, these permission bits map to one single readonly flag per
+// file, and the executable bit is always returned as set. When setting
+// permissions, as long as the write bit is set for either owner, group or
+// others, the readonly flag is cleared.
 enum class _LIBCPP_ENUM_VIS perms : unsigned {
   none = 0,

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