# Module Pervasives

    module Pervasives: sig .. end

Deprecated.Use `Stdlib`

    val raise : exn -> 'a

    val raise_notrace : exn -> 'a

    val invalid_arg : string -> 'a

    val failwith : string -> 'a

    exception Exit

    val (=) : 'a -> 'a -> bool

    val (<>) : 'a -> 'a -> bool

    val (<) : 'a -> 'a -> bool

    val (>) : 'a -> 'a -> bool

    val (<=) : 'a -> 'a -> bool

    val (>=) : 'a -> 'a -> bool

    val compare : 'a -> 'a -> int

    val min : 'a -> 'a -> 'a

    val max : 'a -> 'a -> 'a

    val (==) : 'a -> 'a -> bool

    val (!=) : 'a -> 'a -> bool

    val not : bool -> bool

    val (&&) : bool -> bool -> bool

    val (&) : bool -> bool -> bool

    val (||) : bool -> bool -> bool

    val (or) : bool -> bool -> bool

    val __LOC__ : string

    val __FILE__ : string

    val __LINE__ : int

    val __MODULE__ : string

    val __POS__ : string * int * int * int

    val __LOC_OF__ : 'a -> string * 'a

    val __LINE_OF__ : 'a -> int * 'a

    val __POS_OF__ : 'a -> (string * int * int * int) * 'a

    val (|>) : 'a -> ('a -> 'b) -> 'b

    val (@@) : ('a -> 'b) -> 'a -> 'b

    val (~-) : int -> int

    val (~+) : int -> int

    val succ : int -> int

    val pred : int -> int

    val (+) : int -> int -> int

    val (-) : int -> int -> int

    val ( * ) : int -> int -> int

    val (/) : int -> int -> int

    val (mod) : int -> int -> int

    val abs : int -> int

    val max_int : int

    val min_int : int

    val (land) : int -> int -> int

    val (lor) : int -> int -> int

    val (lxor) : int -> int -> int

    val lnot : int -> int

    val (lsl) : int -> int -> int

    val (lsr) : int -> int -> int

    val (asr) : int -> int -> int

    val (~-.) : float -> float

    val (~+.) : float -> float

    val (+.) : float -> float -> float

    val (-.) : float -> float -> float

    val ( *. ) : float -> float -> float

    val (/.) : float -> float -> float

    val ( ** ) : float -> float -> float

    val sqrt : float -> float

    val exp : float -> float

    val log : float -> float

    val log10 : float -> float

    val expm1 : float -> float

    val log1p : float -> float

    val cos : float -> float

    val sin : float -> float

    val tan : float -> float

    val acos : float -> float

    val asin : float -> float

    val atan : float -> float

    val atan2 : float -> float -> float

    val hypot : float -> float -> float

    val cosh : float -> float

    val sinh : float -> float

    val tanh : float -> float

    val ceil : float -> float

    val floor : float -> float

    val abs_float : float -> float

    val copysign : float -> float -> float

    val mod_float : float -> float -> float

    val frexp : float -> float * int

    val ldexp : float -> int -> float

    val modf : float -> float * float

    val float : int -> float

    val float_of_int : int -> float

    val truncate : float -> int

    val int_of_float : float -> int

    val infinity : float

    val neg_infinity : float

    val nan : float

    val max_float : float

    val min_float : float

    val epsilon_float : float

    type fpclass = fpclass =

`|` | `FP_normal`
`|` | `FP_subnormal`
`|` | `FP_zero`
`|` | `FP_infinite`
`|` | `FP_nan`

    val classify_float : float -> fpclass

    val (^) : string -> string -> string

    val int_of_char : char -> int

    val char_of_int : int -> char

    val ignore : 'a -> unit

    val string_of_bool : bool -> string

    val bool_of_string : string -> bool

    val bool_of_string_opt : string -> bool option

    val string_of_int : int -> string

    val int_of_string : string -> int

    val int_of_string_opt : string -> int option

    val string_of_float : float -> string

    val float_of_string : string -> float

    val float_of_string_opt : string -> float option

    val fst : 'a * 'b -> 'a

    val snd : 'a * 'b -> 'b

    val (@) : 'a list -> 'a list -> 'a list

    type in_channel = in_channel

    type out_channel = out_channel

    val stdin : in_channel

    val stdout : out_channel

    val stderr : out_channel

    val print_char : char -> unit

    val print_string : string -> unit

    val print_bytes : bytes -> unit

    val print_int : int -> unit

    val print_float : float -> unit

    val print_endline : string -> unit

    val print_newline : unit -> unit

    val prerr_char : char -> unit

    val prerr_string : string -> unit

    val prerr_bytes : bytes -> unit

    val prerr_int : int -> unit

    val prerr_float : float -> unit

    val prerr_endline : string -> unit

    val prerr_newline : unit -> unit

    val read_line : unit -> string

    val read_int : unit -> int

    val read_int_opt : unit -> int option

    val read_float : unit -> float

    val read_float_opt : unit -> float option

    type open_flag = open_flag =

`|` | `Open_rdonly`
`|` | `Open_wronly`
`|` | `Open_append`
`|` | `Open_creat`
`|` | `Open_trunc`
`|` | `Open_excl`
`|` | `Open_binary`
`|` | `Open_text`
`|` | `Open_nonblock`

    val open_out : string -> out_channel

    val open_out_bin : string -> out_channel

    val open_out_gen : open_flag list -> int -> string -> out_channel

    val flush : out_channel -> unit

    val flush_all : unit -> unit

    val output_char : out_channel -> char -> unit

    val output_string : out_channel -> string -> unit

    val output_bytes : out_channel -> bytes -> unit

    val output : out_channel -> bytes -> int -> int -> unit

    val output_substring : out_channel -> string -> int -> int -> unit

    val output_byte : out_channel -> int -> unit

    val output_binary_int : out_channel -> int -> unit

    val output_value : out_channel -> 'a -> unit

    val seek_out : out_channel -> int -> unit

    val pos_out : out_channel -> int

    val out_channel_length : out_channel -> int

    val close_out : out_channel -> unit

    val close_out_noerr : out_channel -> unit

    val set_binary_mode_out : out_channel -> bool -> unit

    val open_in : string -> in_channel

    val open_in_bin : string -> in_channel

    val open_in_gen : open_flag list -> int -> string -> in_channel

    val input_char : in_channel -> char

    val input_line : in_channel -> string

    val input : in_channel -> bytes -> int -> int -> int

    val really_input : in_channel -> bytes -> int -> int -> unit

    val really_input_string : in_channel -> int -> string

    val input_byte : in_channel -> int

    val input_binary_int : in_channel -> int

    val input_value : in_channel -> 'a

    val seek_in : in_channel -> int -> unit

    val pos_in : in_channel -> int

    val in_channel_length : in_channel -> int

    val close_in : in_channel -> unit

    val close_in_noerr : in_channel -> unit

    val set_binary_mode_in : in_channel -> bool -> unit

    module LargeFile: LargeFile

    type 'a ref = 'a ref = {

`` | `mutable contents : `'a`;`

`}`

    val ref : 'a -> 'a ref

    val (!) : 'a ref -> 'a

    val (:=) : 'a ref -> 'a -> unit

    val incr : int ref -> unit

    val decr : int ref -> unit

    type ('a, 'b) result = ('a, 'b) result =

`|` | `Ok of `'a``
`|` | `Error of `'b``

    type ('a, 'b, 'c, 'd, 'e, 'f) format6 = ('a, 'b, 'c, 'd, 'e, 'f) CamlinternalFormatBasics.format6

    type ('a, 'b, 'c, 'd) format4 = ('a, 'b, 'c, 'c, 'c, 'd) format6

    type ('a, 'b, 'c) format = ('a, 'b, 'c, 'c) format4

    val string_of_format : ('a, 'b, 'c, 'd, 'e, 'f) format6 -> string

    val format_of_string : ('a, 'b, 'c, 'd, 'e, 'f) format6 ->
           ('a, 'b, 'c, 'd, 'e, 'f) format6

    val (^^) : ('a, 'b, 'c, 'd, 'e, 'f) format6 ->
           ('f, 'b, 'c, 'e, 'g, 'h) format6 ->
           ('a, 'b, 'c, 'd, 'g, 'h) format6

    val exit : int -> 'a

    val at_exit : (unit -> unit) -> unit

    val valid_float_lexem : string -> string

    val do_at_exit : unit -> unit