package core

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Industrial strength alternative to OCaml's standard library

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dune-project
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Authors

  1. J
    Jane Street Group, LLC

Maintainers

  1. J
    Jane Street developers

Sources

v0.17.1.tar.gz
md5=743a141234e04210e295980f7a78a6d9
sha512=61b415f4fb12c78d30649fff1aabe3a475eea926ce6edb7774031f4dc7f37ea51f5d9337ead6ec73cd93da5fd1ed0f2738c210c71ebc8fe9d7f6135a06bd176f

doc/core/Core/Byte_units/index.html

Module Core.Byte_unitsSource

Conversions between units of measure that are based on bytes (like kilobytes, megabytes, gigabytes, and words).

t's are created with of_bytes_float_exn, of_words_float_exn, of_kilobytes, of_megabytes, etc.

Note: in this module, kilobytes, Megabytes, etc. are defined as powers of 1024:

  • 1 kilobyte: 2^10 = 1024 bytes
  • 1 Megabyte: 2^20 = 1024^2 bytes
  • 1 Gigabyte: 2^30 = 1024^3 bytes
  • 1 Terabyte: 2^40 = 1024^4 bytes
  • 1 Petabyte: 2^50 = 1024^5 bytes
  • 1 Exabyte: 2^60 = 1024^6 bytes
Sourcetype t
Sourceval sexp_of_t : t -> Sexplib0.Sexp.t
include Typerep_lib.Typerepable.S with type t := t
Sourceval typename_of_t : t Typerep_lib.Typename.t
Sourceval create : [ `Bytes | `Kilobytes | `Megabytes | `Gigabytes | `Words ] -> Base.Float.t -> t
  • deprecated [since 2019-01] Use [of_bytes], [of_kilobytes], [of_megabytes], etc as appropriate.
include Comparable.S_plain with type t := t
include Base.Comparable.S with type t := t
include Base.Comparisons.S with type t := t
include Base.Comparisons.Infix with type t := t
Sourceval (>=) : t -> t -> bool
Sourceval (<=) : t -> t -> bool
Sourceval (=) : t -> t -> bool
Sourceval (>) : t -> t -> bool
Sourceval (<) : t -> t -> bool
Sourceval (<>) : t -> t -> bool
Sourceval equal : t -> t -> bool
Sourceval min : t -> t -> t
Sourceval max : t -> t -> t
Sourceval ascending : t -> t -> int

ascending is identical to compare. descending x y = ascending y x. These are intended to be mnemonic when used like List.sort ~compare:ascending and List.sort ~cmp:descending, since they cause the list to be sorted in ascending or descending order, respectively.

Sourceval descending : t -> t -> int
Sourceval between : t -> low:t -> high:t -> bool

between t ~low ~high means low <= t <= high

Sourceval clamp_exn : t -> min:t -> max:t -> t

clamp_exn t ~min ~max returns t', the closest value to t such that between t' ~low:min ~high:max is true.

Raises if not (min <= max).

Sourceval clamp : t -> min:t -> max:t -> t Base.Or_error.t
include Base.Comparator.S with type t := t
Sourcetype comparator_witness
Sourceval validate_lbound : min:t Maybe_bound.t -> t Validate.check
Sourceval validate_ubound : max:t Maybe_bound.t -> t Validate.check
Sourceval validate_bound : min:t Maybe_bound.t -> max:t Maybe_bound.t -> t Validate.check
include Hashable.S_plain with type t := t
include Ppx_compare_lib.Comparable.S with type t := t
Sourceval compare : t -> t -> int
include Ppx_hash_lib.Hashable.S with type t := t
Sourceval hash_fold_t : Base.Hash.state -> t -> Base.Hash.state
Sourceval hashable : t Base.Hashable.t
Sourcemodule Table : Hashtbl.S_plain with type key = t
Sourcemodule Hash_set : Hash_set.S_plain with type elt = t
Sourcemodule Hash_queue : Hash_queue.S with type key = t
include Base.Stringable.S with type t := t
Sourceval of_string : string -> t
Sourceval to_string : t -> string
Sourceval of_bytes : Base.Float.t -> t

This is a deprecated alias for of_bytes_float_exn.

  • deprecated [since 2019-01] Use [of_bytes_int], [of_bytes_int63], [of_bytes_int64_exn] or [of_bytes_float_exn] as appropriate.
Sourceval of_bytes_int : Base.Int.t -> t
Sourceval of_bytes_int63 : Int63.t -> t
Sourceval of_bytes_int64_exn : Int64.t -> t

This will raise if and only if the argument can not be represented as a Byte_units.t. Specifically this is if the argument is outside of [-2^62,2^62).

Sourceval of_bytes_float_exn : Base.Float.t -> t

This will raise if and only if the argument can not be represented as a Byte_units.t. Specifically this is if the argument is outside of [-2^62,2^62),

Sourceval of_kilobytes : Base.Float.t -> t

create of Byte_units based on the number of kilobytes. N.B. This will raise if the value is outside of [-2^52,2^52).

Sourceval of_megabytes : Base.Float.t -> t

create of Byte_units based on the number of Megabytes. N.B. This will raise if the value is outside of [-2^42,2^42).

Sourceval of_gigabytes : Base.Float.t -> t

create of Byte_units based on the number of Gigabytes. N.B. This will raise if the value is outside of [-2^32,2^32).

Sourceval of_terabytes : Base.Float.t -> t

create of Byte_units based on the number of Terabytes. N.B. This will raise if the value is outside of [-2^22,2^22).

Sourceval of_petabytes : Base.Float.t -> t

create of Byte_units based on the number of Petabytes. N.B. This will raise if the value is outside of [-2^12,2^12).

Sourceval of_exabytes : Base.Float.t -> t

create of Byte_units based on the number of Exabytes. N.B. This will raise if the value is outside of [-4,4).

Sourceval of_words : Base.Float.t -> t

Do not use, consider using of_words_int instead. Alias for of_words_float_exn.

  • deprecated [since 2019-01] Use [of_words_int] or [of_words_float_exn] instead.
Sourceval of_words_int : Base.Int.t -> t

create of Byte_units based on the number of machine words.

Sourceval of_words_float_exn : Base.Float.t -> t

Create of Byte_units based on the number of machine words. On 64-bit platforms this will raise if the value is outside of [-2^59,2^59). On 32-bit platforms (including JS) this will raise if the value is outside of [-2^60,2^60).

Sourceval to_string_hum : t -> Base.String.t

to_string_hum t returns a string representation of t. This will use the largest unit that will not make the translated value be below 1.

For example Byte_units.to_string_hum (Byte_units.of_bytes_int 1000) gives 1000B, but Byte_units.to_string_hum (Byte_units.of_bytes_int 1500) gives 1.46484K.

Sourceval to_string_short : t -> Base.String.t
  • deprecated [since 2020-06] Use [Short.to_string] instead.
Sourcemodule Short : sig ... end
Sourceval bytes : t -> Base.Float.t

This is a deprecated alias for bytes_float.

  • deprecated [since 2019-01] Use [bytes_int_exn], [bytes_int63], [bytes_int64] or [bytes_float] as appropriate.
Sourceval bytes_int_exn : t -> Base.Int.t

This will raise if and only if the value of this Byte_units.t can not be represented as an int. This can only happen on platforms where int is less than 63 bits, specifically JS and 32-bit OCaml where this will raise if the number of bytes is outside of [-2^30,2^30).

Sourceval bytes_int63 : t -> Int63.t
Sourceval bytes_int64 : t -> Int64.t
Sourceval bytes_float : t -> Base.Float.t
Sourceval kilobytes : t -> Base.Float.t
Sourceval megabytes : t -> Base.Float.t
Sourceval gigabytes : t -> Base.Float.t
Sourceval terabytes : t -> Base.Float.t
Sourceval petabytes : t -> Base.Float.t
Sourceval exabytes : t -> Base.Float.t
Sourceval words : t -> Base.Float.t

Do not use, consider using words_int_exn instead. Alias for words_float

  • deprecated [since 2019-01] Use [words_int_exn] or [words_float] instead.
Sourceval words_int_exn : t -> Base.Int.t

In JS and on 32-bit OCaml this will raise if and only if the number of bytes is outside of [-2^32,2^32).

Sourceval words_float : t -> Base.Float.t
Sourceval zero : t
Sourceval min_value : t
Sourceval max_value : t
Sourceval sign : t -> Sign.t
Sourceval abs : t -> t
Sourceval neg : t -> t
Sourceval scale : t -> Base.Float.t -> t

scale t mul scale the measure t by mul

Sourcemodule Infix : sig ... end
include module type of Infix
Sourceval (-) : t -> t -> t
Sourceval (+) : t -> t -> t
Sourceval (/) : t -> Base.Float.t -> t

( / ) t mul scales t by 1/mul

Sourceval (//) : t -> t -> Base.Float.t

( // ) t1 t2 returns the ratio of t1 to t2

include Quickcheck.S_range with type t := t
include Quickcheck_intf.S with type t := t
Sourceval quickcheck_generator : t Base_quickcheck.Generator.t
Sourceval quickcheck_observer : t Base_quickcheck.Observer.t
Sourceval quickcheck_shrinker : t Base_quickcheck.Shrinker.t
Sourceval gen_incl : t -> t -> t Base_quickcheck.Generator.t

gen_incl lower_bound upper_bound produces values between lower_bound and upper_bound, inclusive. It uses an ad hoc distribution that stresses boundary conditions more often than a uniform distribution, while still able to produce any value in the range. Raises if lower_bound > upper_bound.

Sourceval gen_uniform_incl : t -> t -> t Base_quickcheck.Generator.t

gen_uniform_incl lower_bound upper_bound produces a generator for values uniformly distributed between lower_bound and upper_bound, inclusive. Raises if lower_bound > upper_bound.

Sourcemodule Stable : sig ... end