Omod_support.Digest
Digests.
include module type of Digest
The comparison function for 16-character digest, with the same specification as Stdlib.compare
and the implementation shared with String
.compare. Along with the type t
, this function compare
allows the module Digest
to be passed as argument to the functors Set
.Make and Map
.Make.
val string : string -> t
Return the digest of the given string.
val bytes : bytes -> t
Return the digest of the given byte sequence.
val substring : string -> int -> int -> t
Digest.substring s ofs len
returns the digest of the substring of s
starting at index ofs
and containing len
characters.
val subbytes : bytes -> int -> int -> t
Digest.subbytes s ofs len
returns the digest of the subsequence of s
starting at index ofs
and containing len
bytes.
val channel : in_channel -> int -> t
If len
is nonnegative, Digest.channel ic len
reads len
characters from channel ic
and returns their digest, or raises End_of_file
if end-of-file is reached before len
characters are read. If len
is negative, Digest.channel ic len
reads all characters from ic
until end-of-file is reached and return their digest.
val file : string -> t
Return the digest of the file whose name is given.
val output : out_channel -> t -> unit
Write a digest on the given output channel.
val input : in_channel -> t
Read a digest from the given input channel.
val to_hex : t -> string
Return the printable hexadecimal representation of the given digest.
val from_hex : string -> t
Convert a hexadecimal representation back into the corresponding digest.
val pp : Format.formatter -> t -> unit
pp
formats digests.
val pp_opt : Format.formatter -> t option -> unit
pp_opt
formats optional digests.