`sig val zero : int32 val one : int32 val minus_one : int32 external neg : int32 -> int32 = "%int32_neg" external add : int32 -> int32 -> int32 = "%int32_add" external sub : int32 -> int32 -> int32 = "%int32_sub" external mul : int32 -> int32 -> int32 = "%int32_mul" external div : int32 -> int32 -> int32 = "%int32_div" external rem : int32 -> int32 -> int32 = "%int32_mod" val succ : int32 -> int32 val pred : int32 -> int32 val abs : int32 -> int32 val max_int : int32 val min_int : int32 external logand : int32 -> int32 -> int32 = "%int32_and" external logor : int32 -> int32 -> int32 = "%int32_or" external logxor : int32 -> int32 -> int32 = "%int32_xor" val lognot : int32 -> int32 external shift_left : int32 -> int -> int32 = "%int32_lsl" external shift_right : int32 -> int -> int32 = "%int32_asr" external shift_right_logical : int32 -> int -> int32 = "%int32_lsr" external of_int : int -> int32 = "%int32_of_int" external to_int : int32 -> int = "%int32_to_int" external of_float : float -> int32 = "caml_int32_of_float" "caml_int32_of_float_unboxed" [@@unboxed] [@@noalloc] external to_float : int32 -> float = "caml_int32_to_float" "caml_int32_to_float_unboxed" [@@unboxed] [@@noalloc] external of_string : string -> int32 = "caml_int32_of_string" val to_string : int32 -> string external bits_of_float : float -> int32 = "caml_int32_bits_of_float" "caml_int32_bits_of_float_unboxed" [@@unboxed] [@@noalloc] external float_of_bits : int32 -> float = "caml_int32_float_of_bits" "caml_int32_float_of_bits_unboxed" [@@unboxed] [@@noalloc] type t = int32 val compare : Int32.t -> Int32.t -> int val equal : Int32.t -> Int32.t -> bool external format : string -> int32 -> string = "caml_int32_format" end`