package core_kernel

  1. Overview
  2. Docs
package core_kernel
Legend:
Library
Module
Module type
Parameter
Class
Class type
type 'a t =
  1. | :: of 'a * 'a list

A 'a t represents a non-empty list, as evidenced by the fact that there is no [] variant. The sexp representation is as a regular list (i.e., the same as the Stable.V3 module below).

include Ppx_compare_lib.Comparable.S1 with type 'a t := 'a t
val compare : 'a Base__Ppx_compare_lib.compare -> 'a t Base__Ppx_compare_lib.compare
include Ppx_compare_lib.Equal.S1 with type 'a t := 'a t
val equal : 'a Base__Ppx_compare_lib.equal -> 'a t Base__Ppx_compare_lib.equal
include Sexplib0.Sexpable.S1 with type 'a t := 'a t
val t_of_sexp : (Sexplib0__.Sexp.t -> 'a) -> Sexplib0__.Sexp.t -> 'a t
val sexp_of_t : ('a -> Sexplib0__.Sexp.t) -> 'a t -> Sexplib0__.Sexp.t
val t_sexp_grammar : 'a Sexplib0.Sexp_grammar.t -> 'a t Sexplib0.Sexp_grammar.t
include Ppx_hash_lib.Hashable.S1 with type 'a t := 'a t
val hash_fold_t : 'a Base__Ppx_hash_lib.hash_fold -> 'a t Base__Ppx_hash_lib.hash_fold
include Ppx_quickcheck_runtime.Quickcheckable.S1 with type 'a t := 'a t
val quickcheck_generator : 'a Base_quickcheck.Generator.t -> 'a t Base_quickcheck.Generator.t
val quickcheck_observer : 'a Base_quickcheck.Observer.t -> 'a t Base_quickcheck.Observer.t
val quickcheck_shrinker : 'a Base_quickcheck.Shrinker.t -> 'a t Base_quickcheck.Shrinker.t
include Typerep_lib.Typerepable.S1 with type 'a t := 'a t
val typerep_of_t : 'a Typerep_lib.Std_internal.Typerep.t -> 'a t Typerep_lib.Std_internal.Typerep.t
val typename_of_t : 'a Typerep_lib.Typename.t -> 'a t Typerep_lib.Typename.t
include Core.Comparator.Derived with type 'a t := 'a t
type 'cmp comparator_witness
include Core.Container.S1 with type 'a t := 'a t
val mem : 'a t -> 'a -> equal:('a -> 'a -> bool) -> bool
val length : 'a t -> int
val is_empty : 'a t -> bool
val iter : 'a t -> f:('a -> unit) -> unit
val fold : 'a t -> init:'accum -> f:('accum -> 'a -> 'accum) -> 'accum
val fold_result : 'a t -> init:'accum -> f:('accum -> 'a -> ('accum, 'e) Base__.Result.t) -> ('accum, 'e) Base__.Result.t
val fold_until : 'a t -> init:'accum -> f:('accum -> 'a -> ('accum, 'final) Base__.Container_intf.Continue_or_stop.t) -> finish:('accum -> 'final) -> 'final
val exists : 'a t -> f:('a -> bool) -> bool
val for_all : 'a t -> f:('a -> bool) -> bool
val count : 'a t -> f:('a -> bool) -> int
val sum : (module Base__.Container_intf.Summable with type t = 'sum) -> 'a t -> f:('a -> 'sum) -> 'sum
val find : 'a t -> f:('a -> bool) -> 'a option
val find_map : 'a t -> f:('a -> 'b option) -> 'b option
val to_list : 'a t -> 'a list
val to_array : 'a t -> 'a array
val min_elt : 'a t -> compare:('a -> 'a -> int) -> 'a option
val max_elt : 'a t -> compare:('a -> 'a -> int) -> 'a option
include Core.Invariant.S1 with type 'a t := 'a t
val invariant : 'a Base__.Invariant_intf.inv -> 'a t Base__.Invariant_intf.inv
include Core.Monad.S with type 'a t := 'a t
val (>>=) : 'a t -> ('a -> 'b t) -> 'b t
val (>>|) : 'a t -> ('a -> 'b) -> 'b t
module Monad_infix : sig ... end
val bind : 'a t -> f:('a -> 'b t) -> 'b t
val return : 'a -> 'a t
val map : 'a t -> f:('a -> 'b) -> 'b t
val join : 'a t t -> 'a t
val ignore_m : 'a t -> unit t
val all : 'a t list -> 'a list t
val all_unit : unit t list -> unit t
module Let_syntax : sig ... end
val create : 'a -> 'a list -> 'a t
val of_list : 'a list -> 'a t option
val of_list_error : 'a list -> 'a t Core.Or_error.t
val of_list_exn : 'a list -> 'a t
val singleton : 'a -> 'a t
val cons : 'a -> 'a t -> 'a t
val hd : 'a t -> 'a
val tl : 'a t -> 'a list
val reduce : 'a t -> f:('a -> 'a -> 'a) -> 'a
val reverse : 'a t -> 'a t
val append : 'a t -> 'a list -> 'a t
val unzip : ('a * 'b) t -> 'a t * 'b t
val zip : 'a t -> 'b t -> ('a * 'b) t Core.List.Or_unequal_lengths.t
val zip_exn : 'a t -> 'b t -> ('a * 'b) t
val mapi : 'a t -> f:(int -> 'a -> 'b) -> 'b t
val concat : 'a t t -> 'a t
val concat_map : 'a t -> f:('a -> 'b t) -> 'b t
val last : 'a t -> 'a
val drop_last : 'a t -> 'a list
val to_sequence : 'a t -> 'a Core.Sequence.t
val sort : 'a t -> compare:('a -> 'a -> int) -> 'a t
val stable_sort : 'a t -> compare:('a -> 'a -> int) -> 'a t
val dedup_and_sort : compare:('a -> 'a -> int) -> 'a t -> 'a t
val fold_right : 'a t -> init:'b -> f:('a -> 'b -> 'b) -> 'b
val folding_map : 'a t -> init:'b -> f:('b -> 'a -> 'b * 'c) -> 'c t
val min_elt' : 'a t -> compare:('a -> 'a -> int) -> 'a

min_elt' and max_elt' differ from min_elt and max_elt (included in Container.S1) in that they don't return options.

val max_elt' : 'a t -> compare:('a -> 'a -> int) -> 'a
val map_of_alist_multi : ('k * 'v) list -> comparator:('k, 'cmp) Core.Map.comparator -> ('k, 'v t, 'cmp) Core.Map.t

Like Map.of_alist_multi, but comes with a guarantee that the range of the returned map is all nonempty lists.

val map_of_sequence_multi : ('k * 'v) Core.Sequence.t -> comparator:('k, 'cmp) Core.Map.comparator -> ('k, 'v t, 'cmp) Core.Map.t

Like Map.of_sequence_multi, but comes with a guarantee that the range of the returned map is all nonempty lists.

val combine_errors : ('ok, 'err) Core.Result.t t -> ('ok t, 'err t) Core.Result.t

Like Result.combine_errors but for non-empty lists

val combine_errors_unit : (unit, 'err) Core.Result.t t -> (unit, 'err t) Core.Result.t

Like Result.combine_errors_unit but for non-empty lists

val validate_indexed : 'a Core.Validate.check -> 'a t Core.Validate.check

validates a list, naming each element by its position in the list (where the first position is 1, not 0).

val validate : name:('a -> string) -> 'a Core.Validate.check -> 'a t Core.Validate.check

validates a list, naming each element using a user-defined function for computing the name.

type 'a nonempty_list := 'a t
module Option : sig ... end

This module provides 0-alloc versions of to_list and of_list, via some and allowing you to match%optional on a list, respectively.

module Reversed : sig ... end
val rev_append : 'a Reversed_list.t -> 'a t -> 'a t
module Unstable : sig ... end
module Stable : sig ... end
OCaml

Innovation. Community. Security.

GitHub Discord Twitter Peertube RSS
About
Changelog Releases Industrial Users Academic Users Why OCaml
Ecosystem
Packages Community Events OCaml Planet Jobs
Resources
Install OCaml Get Started Platform Tools Language Manual Standard Library API Books Exercises Papers OCaml Playground Logo
Policies
Carbon Footprint Governance Privacy Code of Conduct