Module Stdlib.Digest

Contents

Instructions: Use this module in your project

In the IDE (CLion, Visual Studio Code, Xcode, etc.) you use for your DkSDK project:

  1. Add the following to your project's dependencies/CMakeLists.txt:

    Copy
    DkSDKProject_DeclareAvailable(ocaml
        CONSTRAINT "= 4.14.0"
        FINDLIBS str unix runtime_events threads dynlink)
    DkSDKProject_MakeAvailable(ocaml)
  2. Add the Findlib::ocaml library to any desired targets in src/*/CMakeLists.txt:

    Copy
    target_link_libraries(YourPackage_YourLibraryName
         # ... existing libraries, if any ...
         Findlib::ocaml)
  3. Click your IDE's Build button

Not using DkSDK?

FIRST, do one or all of the following:

  1. Run:

    Copy
    opam install ocaml.4.14.0
  2. Edit your dune-project and add:

    Copy
    (package
      (name YourExistingPackage)
      (depends
      ; ... existing dependenices ...
      (ocaml (>= 4.14.0))))

    Then run:

    Copy
    dune build *.opam # if this fails, run: dune build
  3. Edit your <package>.opam file and add:

    Copy
    depends: [
      # ... existing dependencies ...
      "ocaml" {>= "4.14.0"}
    ]

    Then run:

    Copy
    opam install . --deps-only

FINALLY, add the library to any desired (library)and/or (executable) targets in your **/dune files:

Copy
(library
  (name YourLibrary)
  ; ... existing library options ...
  (libraries
    ; ... existing libraries ...
    ))

(executable
  (name YourExecutable)
  ; ... existing executable options ...
  (libraries
    ; ... existing libraries ...
    ))
type t`` = string

The type of digests: 16-character strings.

valcompare :t -> t -> int

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.

  • since 4.00.0
valequal :t -> t -> bool

The equal function for 16-character digest.

  • since 4.03.0
valstring : ``string-> t

Return the digest of the given string.

valbytes : ``bytes-> t

Return the digest of the given byte sequence.

  • since 4.02.0
valsubstring : ``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.

valsubbytes : ``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.

  • since 4.02.0
valchannel :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.

valfile : ``string-> t

Return the digest of the file whose name is given.

valoutput :out_channel -> t -> unit

Write a digest on the given output channel.

valinput :in_channel -> t

Read a digest from the given input channel.

valto_hex :t -> string

Return the printable hexadecimal representation of the given digest.

  • raises Invalid_argument

    if the argument is not exactly 16 bytes.

valfrom_hex : ``string-> t

Convert a hexadecimal representation back into the corresponding digest.

  • raises Invalid_argument

    if the argument is not exactly 32 hexadecimal characters.

  • since 4.00.0

More from the DkSDK Book

    1. DkSDK
      1. Package capnp
        1. Module Capnp
            1. Module type MessageSig.MESSAGE
            1. Module type MessageSig.S
              1. Module S.ListStorage
              1. Module S.Message
              1. Module S.Object
              1. Module S.Segment
              1. Module S.Slice
              1. Module S.StructStorage
            1. Module type MessageSig.SEGMENT
            1. Module type MessageSig.SLICE
        1. Module Capnp_unix
      1. Package cmdliner
        1. Module Cmdliner
        1. Module Cmdliner_arg
        1. Module Cmdliner_base
        1. Module Cmdliner_cline
        1. Module Cmdliner_cmd
        1. Module Cmdliner_docgen
        1. Module Cmdliner_eval
        1. Module Cmdliner_info
        1. Module Cmdliner_manpage
        1. Module Cmdliner_msg
        1. Module Cmdliner_term
        1. Module Cmdliner_term_deprecated
        1. Module Cmdliner_trie
      1. Package fmt
        1. Module Fmt
        1. Module Fmt_cli
        1. Module Fmt_tty
      1. Package logs
        1. Module Logs
          1. Module type Logs.LOG
          1. ...
        1. Module Logs_cli
        1. Module Logs_fmt
        1. Module Logs_lwt
          1. Module type Logs_lwt.LOG
        1. Module Logs_threaded
      1. Package lwt
        1. Module Lwt
        1. Module Lwt_bytes
        1. Module Lwt_condition
        1. Module Lwt_config
        1. Module Lwt_engine
        1. Module Lwt_features
        1. Module Lwt_fmt
        1. Module Lwt_gc
        1. Module Lwt_io
            1. Module type Lwt_io.NumberIO
        1. Module Lwt_list
        1. Module Lwt_main
            1. Module type Lwt_main.Hooks
        1. Module Lwt_mutex
        1. Module Lwt_mvar
        1. Module Lwt_pool
        1. Module Lwt_pqueue
            1. Module type Lwt_pqueue.OrderedType
            1. Module type Lwt_pqueue.S
        1. Module Lwt_preemptive
        1. Module Lwt_process
        1. Module Lwt_result
        1. Module Lwt_seq
        1. Module Lwt_sequence
        1. Module Lwt_stream
        1. Module Lwt_switch
        1. Module Lwt_sys
        1. Module Lwt_throttle
            1. Module type Lwt_throttle.S
        1. Module Lwt_timeout
        1. Module Lwt_unix
      1. Package mtime
        1. Module Mtime
        1. Module Mtime_clock
      1. Package ocaml
        1. Module Bigarray
        1. Module Condition
        1. Module Dynlink
        1. Module Event
        1. Module Mutex
        1. Module Profiling
        1. Module Semaphore
        1. Module Stdlib
          1. ...
          1. Module Stdlib.Digest
        1. Module Str
        1. Module Thread
        1. Module ThreadUnix
        1. Module Topdirs
        1. Module Unix
        1. Module UnixLabels
      1. Package
      1. Package result
        1. Module Result
      1. Package stdint
        1. Module Stdint
            1. Module type Stdint.Int