pkg syscall (darwin-386), const EINTR = 4
pkg syscall (darwin-386), const EINVAL = 22
pkg syscall (darwin-386), const EIO = 5
pkg syscall (darwin-386), const EISCONN = 56
pkg syscall (darwin-386), const EISDIR = 21
pkg syscall (darwin-386), const ELAST = 105
pkg syscall (darwin-386), const ELOOP = 62
pkg syscall (darwin-386), const EMFILE = 24
pkg syscall (darwin-386), const EMLINK = 31

Major Component, or to implement a Standard Interface for which an
implementation is available to the public in source code form.  A
"Major Component", in this context, means a major essential component
(kernel, window system, and so on) of the specific operating system
(if any) on which the executable work runs, or a compiler used to
produce the work, or an object code interpreter used to run it.

pkg os, method (*SyscallError) Error() string
pkg os, method (FileMode) IsDir() bool
pkg os, method (FileMode) Perm() FileMode
pkg os, method (FileMode) String() string
pkg os, type File struct
pkg os, type FileInfo interface { IsDir, ModTime, Mode, Name, Size, Sys }
pkg os, type FileInfo interface, IsDir() bool
pkg os, type FileInfo interface, ModTime() time.Time