[all-commits] [llvm/llvm-project] ed4f0c: [VFS] Use generic_category for errors generated fr...

[Ben Barham via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: ed4f0cb87878e63378f2a37a2af2b538eb493a04
      https://github.com/llvm/llvm-project/commit/ed4f0cb87878e63378f2a37a2af2b538eb493a04
  Author: Ben Barham <ben_barham at apple.com>
  Date:   2022-02-22 (Tue, 22 Feb 2022)

  Changed paths:
    M llvm/lib/Support/VirtualFileSystem.cpp

  Log Message:
  -----------
  [VFS] Use generic_category for errors generated from the VFS

Errors are generally checked in clients by comparing to the portable
error condition in `std::errc`, which will have the `generic_category`
(eg. `std::errc::no_such_file_or_directory`). While in practice these
are usually equivalent for the standard errno's, they are not in *all*
implementations. One such example is CentOS 7.

Differential Revision: https://reviews.llvm.org/D120299