bwd

Backward lists
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Module
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Class
Class type
Library bwd
Module Bwd . BwdLabels
type 'a t = 'a bwd =
| Emp
| Snoc of 'a bwd * 'a
val length : 'a bwd -> int
val compare_lengths : 'a bwd -> 'a bwd -> int
val compare_length_with : 'a bwd -> len:int -> int
val snoc : 'a bwd -> 'a -> 'a bwd
val nth : 'a bwd -> int -> 'a
val nth_opt : 'a bwd -> int -> 'a option
val append : 'a bwd -> 'a list -> 'a bwd
val prepend : 'a bwd -> 'a list -> 'a list

Comparison

val equal : eq:( 'a -> 'a -> bool ) -> 'a bwd -> 'a bwd -> bool
val compare : cmp:( 'a -> 'a -> int ) -> 'a bwd -> 'a bwd -> int

Iterators

Note that the iteration direction is from the right to the left, in the opposite direction of the corresponding functions in ListLabels.

val iter : f:( 'a -> unit ) -> 'a bwd -> unit
val iteri : f:( int -> 'a -> unit ) -> 'a bwd -> unit
val map : f:( 'a -> 'b ) -> 'a bwd -> 'b bwd
val mapi : f:( int -> 'a -> 'b ) -> 'a bwd -> 'b bwd
val filter_map : f:( 'a -> 'b option ) -> 'a bwd -> 'b bwd
val fold_left : f:( 'a -> 'b -> 'a ) -> init:'a -> 'b bwd -> 'a
val fold_right_map : f:( 'a -> 'b -> 'b * 'c ) -> 'a bwd -> init:'b -> 'b * 'c bwd
val fold_right : f:( 'a -> 'b -> 'b ) -> 'a bwd -> init:'b -> 'b

Iterators on two lists

Note that the iteration direction is from the right to the left, in the opposite direction of the corresponding functions in ListLabels.

val iter2 : f:( 'a -> 'b -> unit ) -> 'a bwd -> 'b bwd -> unit
val map2 : f:( 'a -> 'b -> 'c ) -> 'a bwd -> 'b bwd -> 'c bwd
val fold_left2 : f:( 'a -> 'b -> 'c -> 'a ) -> init:'a -> 'b bwd -> 'c bwd -> 'a
val fold_right2 : f:( 'a -> 'b -> 'c -> 'c ) -> 'a bwd -> 'b bwd -> init:'c -> 'c

List scanning

Note that the iteration direction is from the right to the left, in the opposite direction of the corresponding functions in ListLabels.

val for_all : f:( 'a -> bool ) -> 'a bwd -> bool
val exists : f:( 'a -> bool ) -> 'a bwd -> bool
val for_all2 : f:( 'a -> 'b -> bool ) -> 'a bwd -> 'b bwd -> bool
val exists2 : f:( 'a -> 'b -> bool ) -> 'a bwd -> 'b bwd -> bool
val mem : 'a -> set:'a bwd -> bool
val memq : 'a -> set:'a bwd -> bool

List searching

Note that the iteration direction is from the right to the left, in the opposite direction of the corresponding functions in ListLabels.

val find : f:( 'a -> bool ) -> 'a bwd -> 'a
val find_opt : f:( 'a -> bool ) -> 'a bwd -> 'a option
val find_map : f:( 'a -> 'b option ) -> 'a bwd -> 'b option
val filter : f:( 'a -> bool ) -> 'a bwd -> 'a bwd
val find_all : f:( 'a -> bool ) -> 'a bwd -> 'a bwd
val filteri : f:( int -> 'a -> bool ) -> 'a bwd -> 'a bwd
val partition : f:( 'a -> bool ) -> 'a bwd -> 'a bwd * 'a bwd
val partition_map : f:( 'a -> ( 'b, 'c ) Stdlib.Either.t ) -> 'a bwd -> 'b bwd * 'c bwd

Lists of pairs

val split : ('a * 'b) bwd -> 'a bwd * 'b bwd
val combine : 'a bwd -> 'b bwd -> ('a * 'b) bwd

Backward and forward lists

val to_list : 'a bwd -> 'a list
val of_list : 'a list -> 'a bwd

Infix notation

module Infix : sig ... end

Notation inspired by Conor McBride.