type t = private Base.Float.t
val compare : t -> t -> Base.Int.t
val hash_fold_t : Base.Hash.state -> t -> Base.Hash.state
val hash : t -> Base.Hash.hash_value
val sexp_of_t : t -> Ppx_sexp_conv_lib.Sexp.t
include Typerep_lib.Typerepable.S with type t := t
val typerep_of_t : t Typerep_lib.Std_internal.Typerep.t
val typename_of_t : t Typerep_lib.Typename.t
include Immediate_option_intf.S_without_immediate_plain with type value := t and type t := t
val none : t
val some : t -> t
val some_is_representable : t -> Base.Bool.t
For some representations of immediate options, the encodings of
none
andsome
overlap. For these representations,some_is_representable value = false
ifvalue
cannot be represented as an option. For example,Int.Option
usesmin_value
to representnone
. For other representations,some_is_representable
always returnstrue
.
val is_none : t -> Base.Bool.t
val is_some : t -> Base.Bool.t
val value : t -> default:t -> t
value (some x) ~default = x
andvalue none ~default = default
.
val value_exn : t -> t
value_exn (some x) = x
.value_exn none
raises. UnlikeOption.value_exn
, there is no?message
argument, so that calls tovalue_exn
that do not raise also do not have to allocate.
val unchecked_value : t -> t
unchecked_value (some x) = x
.unchecked_value none
returns an unspecified value.unchecked_value t
is intended as an optimization ofvalue_exn t
whenis_some t
is known to be true.
val to_option : t -> t Base.Option.t
val of_option : t Base.Option.t -> t
module Optional_syntax : Optional_syntax.S with type t := t with type value := t