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(************************************************************************)
(* ocplib-endian *)
(* *)
(* Copyright 2012 OCamlPro *)
(* *)
(* This file is distributed under the terms of the GNU Lesser General *)
(* Public License as published by the Free Software Foundation; either *)
(* version 2.1 of the License, or (at your option) any later version, *)
(* with the OCaml static compilation exception. *)
(* *)
(* ocplib-endian is distributed in the hope that it will be useful, *)
(* but WITHOUT ANY WARRANTY; without even the implied warranty of *)
(* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *)
(* GNU General Public License for more details. *)
(* *)
(************************************************************************)
open Bigarray
type bigstring = (char, int8_unsigned_elt, c_layout) Array1.t
module type EndianBigstringSig = sig
(** Functions reading according to Big Endian byte order *)
val get_char : bigstring -> int -> char
(** [get_char buff i] reads 1 byte at offset i as a char *)
val get_uint8 : bigstring -> int -> int
(** [get_uint8 buff i] reads 1 byte at offset i as an unsigned int of 8
bits. i.e. It returns a value between 0 and 2^8-1 *)
val get_int8 : bigstring -> int -> int
(** [get_int8 buff i] reads 1 byte at offset i as a signed int of 8
bits. i.e. It returns a value between -2^7 and 2^7-1 *)
val get_uint16 : bigstring -> int -> int
(** [get_uint16 buff i] reads 2 bytes at offset i as an unsigned int
of 16 bits. i.e. It returns a value between 0 and 2^16-1 *)
val get_int16 : bigstring -> int -> int
(** [get_int16 buff i] reads 2 byte at offset i as a signed int of
16 bits. i.e. It returns a value between -2^15 and 2^15-1 *)
val get_int32 : bigstring -> int -> int32
(** [get_int32 buff i] reads 4 bytes at offset i as an int32. *)
val get_int64 : bigstring -> int -> int64
(** [get_int64 buff i] reads 8 bytes at offset i as an int64. *)
val get_float : bigstring -> int -> float
(** [get_float buff i] is equivalent to
[Int32.float_of_bits (get_int32 buff i)] *)
val get_double : bigstring -> int -> float
(** [get_double buff i] is equivalent to
[Int64.float_of_bits (get_int64 buff i)] *)
val set_char : bigstring -> int -> char -> unit
(** [set_char buff i v] writes [v] to [buff] at offset [i] *)
val set_int8 : bigstring -> int -> int -> unit
(** [set_int8 buff i v] writes the least significant 8 bits of [v]
to [buff] at offset [i] *)
val set_int16 : bigstring -> int -> int -> unit
(** [set_int16 buff i v] writes the least significant 16 bits of [v]
to [buff] at offset [i] *)
val set_int32 : bigstring -> int -> int32 -> unit
(** [set_int32 buff i v] writes [v] to [buff] at offset [i] *)
val set_int64 : bigstring -> int -> int64 -> unit
(** [set_int64 buff i v] writes [v] to [buff] at offset [i] *)
val set_float : bigstring -> int -> float -> unit
(** [set_float buff i v] is equivalent to
[set_int32 buff i (Int32.bits_of_float v)] *)
val set_double : bigstring -> int -> float -> unit
(** [set_double buff i v] is equivalent to
[set_int64 buff i (Int64.bits_of_float v)] *)
end
module BigEndian : sig
(** Functions reading according to Big Endian byte order without
checking for overflow *)
include EndianBigstringSig
end
module BigEndian_unsafe : sig
(** Functions reading according to Big Endian byte order without
checking for overflow *)
include EndianBigstringSig
end
module LittleEndian : sig
(** Functions reading according to Little Endian byte order *)
include EndianBigstringSig
end
module LittleEndian_unsafe : sig
(** Functions reading according to Big Endian byte order without
checking for overflow *)
include EndianBigstringSig
end
module NativeEndian : sig
(** Functions reading according to machine endianness *)
include EndianBigstringSig
end
module NativeEndian_unsafe : sig
(** Functions reading according to machine endianness without
checking for overflow *)
include EndianBigstringSig
end