# Module Lwt_sys

    module Lwt_sys: sig .. end

System informations.

    exception Not_available of string

`Not_available(feature)` is an exception that may be raised when a feature is not available on the current system.

    val windows : bool

`true` iff running on windows.

    type feature = [ `fd_passing
           | `fdatasync
           | `get_affinity
           | `get_cpu
           | `get_credentials
           | `libev
           | `madvise
           | `mincore
           | `recv_msg
           | `send_msg
           | `set_affinity
           | `wait4 ]

Features that can be tested.

    val have : feature -> bool

Test whether the given feature is available on the current system.

    type byte_order =

`|` | `Little_endian`
`|` | `Big_endian` | `(*` | Type of byte order | `*)`

    val byte_order : byte_order

The byte order used by the computer running the program.