package base

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package base
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A simple type for representing the sign of a numeric value.

type t =
  1. | Neg
  2. | Zero
  3. | Pos
include sig ... end
val all : t list

This provides to_string/of_string, sexp/bin_io conversion, Map, Hashtbl, etc.

include Identifiable.S with type t := t
include sig ... end
val t_of_sexp : Sexp.t -> t
val sexp_of_t : t -> Sexp.t
val hash_fold_t : Hash.state -> t -> Hash.state
val hash : t -> Hash.hash_value
include Stringable.S with type t := t
val of_string : string -> t
val to_string : t -> string
include Comparable.S with type t := t
include Comparable_intf.Polymorphic_compare with type t := t
include Polymorphic_compare_intf.Infix with type t := t
val (>=) : t -> t -> bool
val (<=) : t -> t -> bool
val (=) : t -> t -> bool
val (>) : t -> t -> bool
val (<) : t -> t -> bool
val (<>) : t -> t -> bool
val equal : t -> t -> bool
val compare : t -> t -> int

-1 means "less than", 0 means "equal", 1 means "greater than", and other values should not be returned

val min : t -> t -> t
val max : t -> t -> t
val 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 ~cmp:ascending and List.sort ~cmp:descending, since they cause the list to be sorted in ascending or descending order, respectively.

val descending : t -> t -> int
val between : t -> low:t -> high:t -> bool
val 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).

val clamp : t -> min:t -> max:t -> t Or_error.t
include Comparator.S with type t := t
type comparator_witness
include Comparable_intf.Validate with type t := t
val validate_lbound : min:t Maybe_bound.t -> t Validate.check
val validate_ubound : max:t Maybe_bound.t -> t Validate.check
val validate_bound : min:t Maybe_bound.t -> max:t Maybe_bound.t -> t Validate.check
include Pretty_printer.S with type t := t
val pp : Caml.Format.formatter -> t -> unit
val of_int : int -> t
val to_int : t -> int

Map Neg/Zero/Pos to -1/0/1 respectively.

val to_float : t -> float

Map Neg/Zero/Pos to -1./0./1. respectively. (There is no of_float here, but see Float.sign_exn.)

val flip : t -> t

Map Neg/Zero/Pos to Pos/Zero/Neg respectively.

val (*) : t -> t -> t

Neg * Neg = Pos, etc.

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