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Module Option : Option with type value := t

Span.Option.t is like Span.t option, except that the value is immediate. This module should mainly be used to avoid allocations.

Signature

type value
type t = private Core_kernel.Std.Int63.t
val typerep_of_t : t Typerep_lib.Std.Typerep.t
val typename_of_t : t Typerep_lib.Std.Typename.t
include Core_kernel.Std.Identifiable with type t := t
type t
val t_of_sexp : Sexplib.Sexp.t -> t
val sexp_of_t : t -> Sexplib.Sexp.t
val bin_t : t Bin_prot.Type_class.t
val bin_read_t : t Bin_prot.Read.reader
val __bin_read_t__ : (int -> t) Bin_prot.Read.reader
val bin_reader_t : t Bin_prot.Type_class.reader
val bin_size_t : t Bin_prot.Size.sizer
val bin_write_t : t Bin_prot.Write.writer
val bin_writer_t : t Bin_prot.Type_class.writer
include Core_kernel.Stringable.S with type t := t
type t
val of_string : string -> t
val to_string : t -> string
include Core_kernel.Comparable.S_binable with type t := t
include Comparable_intf.S_common
include Comparable_intf.Polymorphic_compare
include Polymorphic_compare_intf.Infix
type 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
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 t
type comparator_witness
include Comparable_intf.Validate with type t := t
type 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 Comparable_intf.Map_and_set_binable with type t := t with type comparator_witness := comparator_witness
type t
include Comparator.S with type t := t
type t
type comparator_witness
include Core_kernel.Hashable.S_binable with type t := t
type t
val hash : t -> int
module Table : Hashable.Hashtbl.S_binable with type key = t
include Core_kernel.Pretty_printer.S with type t := t
type t
val pp : Format.formatter -> t -> unit
val none : t
val some : value -> t
val is_none : t -> bool
val is_some : t -> bool
val value : t -> default:value -> value
val value_exn : t -> value

unchecked_value t is like value_exn t, except its return value is only defined if is_some t. This avoids an extra branch if it is known that is_some t.

val unchecked_value : t -> value

unchecked_value t is like value_exn t, except its return value is only defined if is_some t. This avoids an extra branch if it is known that is_some t.

val of_option : value option -> t
val to_option : t -> value option
module Stable : sig .. end