Either (either.Either)

type ('a, 'b) t = ('a, 'b) Stdlib.Either.t =

| Left of 'a
| Right of 'b

This module defines the common Either interface that is provided for all OCaml versions. For documentation of these functions, refer to the standard library.

val left : 'a -> ('a, 'b) t

val right : 'b -> ('a, 'b) t

val is_left : ('a, 'b) t -> bool

val is_right : ('a, 'b) t -> bool

val find_left : ('a, 'b) t -> 'a option

val find_right : ('a, 'b) t -> 'b option

val map_left : ('a1 -> 'a2) -> ('a1, 'b) t -> ('a2, 'b) t

val map_right : ('b1 -> 'b2) -> ('a, 'b1) t -> ('a, 'b2) t

val map : 
  left:('a1 -> 'a2) ->
  right:('b1 -> 'b2) ->
  ('a1, 'b1) t ->
  ('a2, 'b2) t

val fold : left:('a -> 'c) -> right:('b -> 'c) -> ('a, 'b) t -> 'c

val iter : left:('a -> unit) -> right:('b -> unit) -> ('a, 'b) t -> unit

val for_all : left:('a -> bool) -> right:('b -> bool) -> ('a, 'b) t -> bool

val equal : 
  left:('a -> 'a -> bool) ->
  right:('b -> 'b -> bool) ->
  ('a, 'b) t ->
  ('a, 'b) t ->
  bool

val compare : 
  left:('a -> 'a -> int) ->
  right:('b -> 'b -> int) ->
  ('a, 'b) t ->
  ('a, 'b) t ->
  int